Brands

<h2 class="p1"> What are Cell Strainers?</h2>
 Cell strainers are sterile, single-use nylon mesh filter caps that sit in the opening of a 50 mL conical centrifuge tube, used to disaggregate tissue homogenates, tumor biopsies, lymph nodes, spleens, and bone marrow aspirates into uniform single-cell suspensions for downstream applications including flow cytometry, primary cell culture, FACS sorting, and immunophenotyping. The strainer is placed filter-side down in the collection tube, the tissue suspension is added to the strainer basket and pushed through the nylon mesh using the plunger of a syringe, the wet end of a syringe barrel, or the back of a sterile 1 mL syringe. Choose 40 &micro;m for fine single-cell suspension preparation from soft tissues; 70 &micro;m for standard tissue disaggregation (the most commonly used pore size); 100 &micro;m for pre-filtration of coarse tissue homogenates and large spheroids.
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<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
40&mu;m Cell Strainers for fine-scale molecular filtration
</li>
<li dir="ltr" aria-level="1">
70&mu;m Cell Strainers for routine primary cell isolation
</li>
<li dir="ltr" aria-level="1">
100&mu;m Cell Strainers for large cluster separation
</li>
<li dir="ltr" aria-level="1">
Sterile Nylon Mesh Strainers for precise pore consistency
</li>
<li dir="ltr" aria-level="1">
Color-Coded Strainers for easy micron-size identification
</li>
<li dir="ltr" aria-level="1">
Universal Fit Strainers for standard 50mL centrifuge tubes
</li>
</ul>
<h2 class="p1"> How to Choose Cell Strainers</h2>
 Pore Size by Application 40 &micro;m strainers (blue) produce the finest filtrate, retaining cell aggregates and larger tissue debris while passing single cells and small cell clusters. They are the standard for preparing highly uniform single-cell suspensions from soft tissues (spleen, thymus, lymph nodes) for flow cytometry, where doublets must be minimized. 40 &micro;m strainers have lower flow rates and clog more readily with dense or fibrous tissues. 70 &micro;m strainers (white) are the most commonly used pore size in cell biology &mdash; they balance efficient single-cell passage with adequate retention of fibrous connective tissue and undigested tissue chunks. Standard for tumor dissociation, liver perfusion single-cell prep, and any tissue where a moderate doublet rate is acceptable. 100 &micro;m strainers (yellow) pass cell clusters and small organoids while retaining large undissociated tissue pieces; used as a first-pass pre-filtration step before 70 &micro;m or 40 &micro;m filtration of tough fibrous tissues, and for filtering 3D tumor spheroids grown in 96-well U-bottom plates before reseeding. Color-Coding for Laboratory Workflow NEST Scientific cell strainers follow a universal color-coding convention: 40 &micro;m = blue, 70 &micro;m = white, 100 &micro;m = yellow. This matches the color convention used by BD Biosciences Falcon cell strainers, allowing unambiguous pore-size identification during multi-step tissue disaggregation protocols without reading the label at every step. 50 mL Tube Compatibility NEST Scientific cell strainers are designed with a flange diameter that fits securely into the opening of 50 mL conical centrifuge tubes from most major brands, including BD Falcon, TPP, and MidSci, per NEST Scientific product documentation. A molded tab on the upper ring facilitates sterile handling during tube loading without touching the mesh surface. Tissue Types and Recommended Pore Size For spleen, thymus, and lymph nodes: 40 &micro;m or 70 &micro;m. For bone marrow: 70 &micro;m. For tumor biopsy (mechanically or enzymatically dissociated): 40 &micro;m (after enzyme digestion) or 70 &micro;m (mechanical disaggregation only). For liver (perfusion-dissociated hepatocytes): 70 &micro;m or 100 &micro;m. For 3D spheroid disaggregation: 40 &micro;m or 70 &micro;m, depending on the desired cluster size in the filtrate. For flow cytometry sorting (minimize doublets): 40 &micro;m immediately before loading the sorter. 
<h2 class="p1"> Compare NEST Scientific Cell Strainer SKUs </h2>
<ul>
<li data-section-id="16rq5ic" data-start="0" data-end="126">40 &micro;m (Blue): NEST Catalog 258369; 50/case; suitable for fine single-cell suspension and flow cytometry pre-filtration.</li>
<li data-section-id="10iabbd" data-start="128" data-end="251">70 &micro;m (White): NEST Catalog 258368; 50/case; suitable for standard tissue disaggregation and universal applications.</li>
<li data-section-id="toszed" data-start="253" data-end="390" data-is-last-node="">100 &micro;m (Yellow): NEST Catalog 258367; 50/case; suitable for pre-filtration, coarse tissue processing, and spheroid size selection.</li>
</ul>
<h2 class="p1"> Specifications Context</h2>
 NEST Scientific cell strainers are manufactured from nylon mesh bonded to a polypropylene (PP) frame with a tab-molded upper ring for sterile handling. Pore sizes are 40 &micro;m, 70 &micro;m, and 100 &micro;m; mesh pore spacing is uniform per manufacturing lot. Compatible with 50 mL conical centrifuge tubes from BD Falcon, TPP, and MidSci per NEST Scientific USA documentation. Each strainer is sterile (gamma-irradiated), individually wrapped, non-pyrogenic, and DNase/RNase-free per lot certificate. Non-cytotoxic nylon mesh. All three pore sizes (40, 70, and 100 &micro;m) are stocked by MBP in cases of 50. 
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Science is hard, but getting a quote shouldn't be. <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">Connect with our experts at Molecular Biology Products Inc.</a> and let&rsquo;s get your lab sorted before the next audit.

Cell Strainers

Biologix® Cell Strainers, 40/70/100μm, Individual Package

Biologix Cell Strainers, Support Your Science Experiments!

Biologix® Cell Strainers, Individual Package, Case of 100

Biologix® Cell Strainers, 40/70/100μm, Individual Package, Case of 100\r\n

Brand

Model

Material

Size

Sterile

BIOLOGIX 40µM STERILE NYLON MESH CELL STRAINER WITH PURPLE POLYPROPYLENE FRAME FEATURING MOLDED TAB FOR EASY HANDLING. (COMPATIBLE WITH BIOLOGIX 50ML CENTRIFUGE TUBES.) STRAINERS COME INDIVIDUALLY WRAPPED.  100/CASE

BIOLOGIX 70µM STERILE NYLON MESH CELL STRAINER WITH ORANGE POLYPROPYLENE FRAME FEATURING MOLDED TAB FOR EASY HANDLING. (COMPATIBLE WITH BIOLOGIX 50ML CENTRIFUGE TUBES.) STRAINERS COME INDIVIDUALLY WRAPPED.  100/CASE

BIOLOGIX 100µM STERILE NYLON MESH CELL STRAINER WITH GREEN POLYPROPYLENE FRAME FEATURING MOLDED TAB FOR EASY HANDLING. (COMPATIBLE WITH BIOLOGIX 50ML CENTRIFUGE TUBES.) STRAINERS COME INDIVIDUALLY WRAPPED.  100/CASE

<h2 dir="ltr">What Are Pipette Tips?</h2>
 Pipette tips are disposable polypropylene cones that attach to the shaft of an air-displacement pipette, forming the liquid-contact surface for aspiration and dispensing. The seal between the tip collar and the pipette shaft is the single most important factor in volumetric accuracy; a poorly fitting tip introduces systematic volume error that causes the instrument to deviate from its calibrated specification. Tips span micro volumes (0.1&ndash;10 &micro;L) through standard (20&ndash;200 &micro;L and 100&ndash;1,000 &micro;L) to high-volume (up to 1,250 &micro;L), with variants for filtered aerosol protection, low-retention liquid release, extended reach into deep vessels, and wide-bore dispensing of viscous samples.&nbsp;
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/liquid-handling-products/pipette-tips/universal-fit-pipette-tips" style="color: #236fa1;">Universal Fit Pipette Tips</a> &ndash; Available in volumes from 0.1 &micro;L to 5000 &micro;L, including low-retention and extended-length options, with sterile rack, bulk bag, and non-sterile refill formats.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/consumables/liquid-handling-products/filtered-pipette-tips/lts-compatible-filter-tips" style="color: #236fa1;">LTS Compatible Pipette Tips</a> &ndash; Feature PosiStop seals for use with Rainin-style pipettes and are offered with GreenRack systems, reload stacks, and empty rack frames.
</li>
</ul>
&nbsp;
<h2 dir="ltr">How to Choose Pipette Tips</h2>
 Collar Size and Pipette Compatibility Tip collar diameter determines fit: 3.8 mm collar for &le;10 &micro;L pipettes; 6.1 mm collar for &le;200 &micro;L; approximately 7.5&ndash;8.0 mm collar for P1000 pipettes. Universal fit tips use these standard collar sizes and are compatible with Eppendorf Research, Rainin Classic (non-LTS), Thermo Finnpipette, and Sartorius/BioHit. Rainin LTS and Eppendorf epT.I.P.S. use proprietary collar geometry and require instrument-specific tips. Filtered vs Non-Filtered Aerosol-barrier filter tips contain a hydrophobic PE or cellulose plug that blocks aerosol and liquid from reaching the pipette barrel; required for PCR, qPCR, and RT-PCR setup, RNA extraction, and work with biohazardous samples. Non-filter standard tips are appropriate for buffer, media, and reagent dispensing where cross-contamination through the barrel is not a concern. Low-Retention vs Standard Polypropylene Low-retention tips are injection-moulded from hydrophobic polypropylene with reduced surface energy or coated to minimise liquid adhesion on the inner wall. They improve accuracy at &le;10 &micro;L and for dispensing viscous, protein-containing, or organic solvent samples. Standard PP tips leave small residual volumes in the tip after dispensing; this residue is negligible at 200 &micro;L but significant at 2&ndash;5 &micro;L. Extended-Length and Wide-Bore Extended-length tips (also called long tips or gel-loading tips) reach into deep 15 mL and 50 mL tubes, cryovials, and electrophoresis gel wells. Wide-bore tips have an enlarged aperture for dispensing viscous samples, cell suspensions, and tissue lysates without shearing. Packaging Format Hinged 96-tip racks are standard for manual pipetting. Reload inserts fit into reusable rack bases to reduce per-tip cost and plastic waste. Bulk bags provide the lowest cost per tip for non-sterile applications.
&nbsp;
<h2 dir="ltr">Specifications Context</h2>
 Pipette tips are certified DNase-free, RNase-free, ATP-free, human DNA-free, PCR inhibitor-free, and pyrogen-free per independent lot testing. Virgin polypropylene free of additives, antistatic agents, and dyes is the standard material. ISO 8655 compliance for the pipette system depends on tip-pipette seal quality; confirm tip compatibility with your specific pipette model.&nbsp; Sorenson Bioscience universal and filtered tips, Globe Scientific, and Nest Scientific lines are stocked by MBP Inc.&nbsp;
&nbsp;
Not sure which tip fits your current project best?<a href="https://mbpinc.net/contact-us" style="color: #236fa1;"> The MBP team</a> is just a message away. We&rsquo;ll help you find the perfect match and get a quote headed your way.

Pipette Tips

<h2 dir="ltr">What Are Bulk &amp; Racked Pipette Tips?</h2>
 Racked pipette tips are pre-loaded into a 96-position hinged polypropylene rack (8 rows &times; 12 columns), matched to standard single-channel and 8-channel multichannel pipette workflows. Bulk tips are supplied as loose tips in resealable bags of 500&ndash;1,000 or more, intended for self-loading into existing rack frames or bulk-bag dispensers. For labs that discard full racks after each use, bulk bags offer a significant reduction in per-tip cost; for labs requiring sterile, pre-organised tips, hinged racks are the standard. Choose racked tips for sterile/organised workflows; choose bulk bags when sterility is not required and cost per tip is the primary driver. 
&nbsp;
<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Standard Universal Tips &ndash; Medical-grade pipette tips ranging from 0.1uL to 5000uL for broad multi-brand compatibility.</li>
<li dir="ltr" role="presentation">Low Retention Tips &ndash; Engineered with hydrophobic surfaces to ensure maximum sample recovery and zero liquid hang-up.</li>
<li dir="ltr" role="presentation">Extended Length Tips &ndash; Specialized long-reach designs for safe, contamination-free sampling from deep vessels and tubes.</li>
<li dir="ltr" role="presentation">Racked Sterile Tips &ndash; Pre-loaded, RNase/DNase-free formats for immediate use in sensitive molecular workflows.</li>
<li dir="ltr" role="presentation">Bulk Non-Sterile Tips &ndash; High-volume, economical supply bags for routine laboratory applications and high-throughput use.</li>
<li dir="ltr" role="presentation">Empty Tip Boxes &ndash; Durable, reusable racks designed for organized storage and seamless integration with reload systems.</li>
</ul>
<h2 dir="ltr"> How to Choose Between Bulk and Racked Formats </h2>
 Sterility Requirements Racked tips are available pre-sterilised (EO or gamma) and are individually certified DNase-free, RNase-free, ATP-free, human DNA-free, and PCR inhibitor-free per lot &mdash; required for cell culture, PCR setup, RNA work, and any sterility-sensitive application. Bulk bag tips are typically non-sterile; they can be autoclaved by the user at 121&deg;C (15 psi, 15 min) before use if sterility is needed, though autoclaving adds handling time. Throughput and Format Racked 96-tip formats support 8-channel multichannel pipetting with aligned well positions. Bulk bags are efficient for single-channel repetitive dispensing where tips are picked individually. For high-throughput multichannel workflows, the Refill Station (reload insert) format combines the alignment benefits of a rack with the lower cost of bulk supply. Volume Range 10 &micro;L tips: for P2, P10 single-channel pipettes, microvolume dispensing, sequencing gel loading. 200 &micro;L tips: the highest-volume format in most research labs &mdash; P20, P100, P200 range. 1,000 &micro;L / 1,250 &micro;L tips: for P1000 pipettes; available in standard and extended-length formats for deep-tube access. Standard-length tips suit standard Eppendorf and Falcon tubes; extended-length tips reach 15 mL and 50 mL conical tube bottoms. Autoclavable Racks Polypropylene hinged racks withstand repeated autoclave cycles at 121&deg;C without dimensional distortion. Confirm the rack material is PP (not polystyrene) before autoclaving &mdash; PS racks deform under steam sterilisation. Pack Sizes and Case Economics Standard racked packs: 96 tips/rack &times; 10 racks/box &times; 10 boxes/case = 9,600 tips/case for 200 &micro;L format. Bulk bags: 500 or 1,000 tips/bag; cases of 10 bags = 5,000&ndash;10,000 tips at significantly lower cost per tip. 
<h2 dir="ltr"> Specifications Context</h2>
 Racked tips from Globe Scientific, Nest Scientific, and Sorenson Bioscience are manufactured from USP Class VI virgin polypropylene in Class 100,000 cleanroom conditions. Sterile racked tips are EO-sterilised or gamma-irradiated to SAL 10⁻&sup3; to 10⁻⁶ depending on specification. Bulk tips are moulded from the same virgin PP feedstock and are suitable for autoclaving at 121&deg;C/250&deg;F, 15 psi, 15 minutes maximum. Globe Scientific and Nest Scientific racks and bulk formats are among the most widely distributed in North American research labs.&nbsp; 
&nbsp;
Don't leave your precision to chance. Browse our bulk and racked inventory and <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">contact the MBP team</a> for a custom quote today.

Bulk & Racked Pipette Tips

<h2 dir="ltr"> What Are Universal Fit Pipette Tips?</h2>
 Universal fit pipette tips use collar diameters standardised across most major air-displacement pipette brands, allowing a single tip product to seat on pipettes from multiple manufacturers. The three primary collar sizes are: 3.8 mm for &le;10 &micro;L tips, 6.1 mm for &le;200 &micro;L tips, and approximately 7.5&ndash;8.0 mm for P1000 tips. These collar sizes cover Eppendorf Research Plus, Rainin Classic (non-LTS), Thermo Finnpipette, Sartorius/BioHit, and VWR pipettes. Universal fit tips cover most lab pipettes at a lower cost per tip &mdash; the exception is Rainin LTS, which needs dedicated LTS tips. 
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li data-path-to-node="4,0,0"><a href="https://mbpinc.net/consumables/liquid-handling-products/pipette-tips/universal-fit-pipette-tips/refill-stations-for-universal-fit-pipette-tips-">Refill Stations for Universal Fit Pipette Tips</a> &ndash; Eco-friendly, space-saving reload stacks designed for rapid rack replenishment with zero-touch contamination control.</li>
<li data-path-to-node="4,0,0"><a href="https://mbpinc.net/consumables/liquid-handling-products/pipette-tips/universal-fit-pipette-tips/bulk-and-racked-pipette-tips">Bulk &amp; Racked Pipette Tips </a>&ndash; High-clarity, medical-grade tips available in reinforced racks for immediate use or economical bulk bags for high-volume workflows.</li>
</ul>
<h2 dir="ltr"> How to Choose Universal Fit Pipette Tips</h2>
 Volume Range: Match Tip to Pipette 10 &micro;L universal tips (3.8 mm collar) cover 0.1&ndash;10 &micro;L single-channel pipettes and the P10 range. 200 &micro;L universal tips (6.1 mm collar) cover P20, P50, P100, and P200 pipettes. 1,000 &micro;L universal tips cover P1000 pipettes and are available in standard-length and extended-length formats. 1,250 &micro;L macro universal tips accommodate high-volume dispensing steps in the 1,000&ndash;1,250 &micro;L range. Standard vs Filtered Universal Tips Standard universal tips are sufficient for buffer, media, and reagent dispensing. Filtered universal tips &mdash; with hydrophobic PE or cellulose aerosol barrier &mdash; are required for PCR setup, RNA work, and any contamination-sensitive application. Using filtered tips universally reduces contamination risk in shared pipettes at the cost of approximately 1.5&ndash;2&times; the price of standard tips. Low-Retention Universal Tips Low-retention universal tips minimise residual volume on the inner tip wall. This matters at &le;10 &micro;L, where standard tips may retain 0.2&ndash;0.5 &micro;L, creating a systematic under-delivery error. Sorenson's universal low-retention tips maintain compatibility with all major standard-collar pipettes. Packaging Format Racked (hinged 96-tip rack): standard for manual pipetting. Reload inserts: drop into reusable rack bases; 20&ndash;30% lower per-tip cost and reduced plastic. Bulk (non-sterile bag): lowest cost per tip for non-sterile buffer/media work. Sterile racked tips are required for cell culture, RNA, and clean applications. OneTouch / Ergonomic Formats OneTouch reload formats allow the full tip insert to be loaded into the pipette simultaneously, reducing repetitive-strain impact from individual tip-loading in high-throughput workflows. 
<h2 dir="ltr"> Specifications Context</h2>
 Universal fit tips are manufactured from 100% virgin polypropylene, certified DNase-free, RNase-free, ATP-free, human DNA-free, pyrogen-free, and PCR inhibitor-free per lot. Sorenson Bioscience universal tips are manufactured in a Class 100,000 cleanroom, pre-sterilised, and sold through MBP Inc. in standard racks, EcoRack reloads, and bulk formats. Universal fit tips remain the highest-volume tip category in North American research labs due to multi-brand compatibility and lower cost per tip versus pipette-specific variants.&nbsp; 
If you&rsquo;re setting up a workflow or mixing pipette brands in the same lab, it&rsquo;s usually worth sorting tip compatibility early &mdash; it removes a lot of small daily friction that adds up over time. <a href="https://mbpinc.net/contact-us">Contact the MBP team</a> to get a tailored quote!

Universal Fit Pipette Tips

Biologix® Pipette Tips-10µl/200μl/1000µl/1000µl Extended, (Rack, Sterile)

Biologix® Racked Pipette Tips - Extended, Sterile

Biologix® Pipette Tips-10µl/200μl/1000µl/1000µl Extended, (Rack, Sterile)\r\n

Volume

BIOLOGIX 10µL CLEAR POLYPROPYLENE STERILE (RNASE & DNASE FREE) AUTOCLAVABLE PIPET TIPS.  PIPET TIPS HAVE MOLDED GRADUATIONS. TIPS COME LOADED INTO 96 WELL RACKS. 96 TIPS/RACK, 100 RACKS/CASE

BIOLOGIX 200µL YELLOW POLYPROPYLENE STERILE (RNASE & DNASE FREE) AUTOCLAVABLE PIPET TIPS.  PIPET TIPS HAVE MOLDED GRADUATIONS. TIPS COME LOADED INTO 96 WELL RACKS. 96 TIPS/RACK, 100 RACKS/CASE

BIOLOGIX 1000µL BLUE POLYPROPYLENE STERILE (RNASE & DNASE FREE) AUTOCLAVABLE PIPET TIPS.  TIPS COME LOADED INTO 100 WELL RACKS. 100 TIPS/RACK, 60 RACKS/CASE

BIOLOGIX 1000µL CLEAR POLYPROPYLENE STERILE (RNASE & DNASE FREE) AUTOCLAVABLE PIPET TIPS.  TIPS COME LOADED INTO 96 WELL RACKS. 96 TIPS/RACK, 60 RACKS/CASE

<h2 data-section-id="1hv97bw" data-start="0" data-end="47">What Are Laboratory Storage Boxes and Racks?</h2>
&nbsp;
Laboratory storage boxes and racks are essential organizational systems used to store, organize, and protect cryogenic vials, microcentrifuge tubes, centrifuge tubes, and microscope slides across freezers, cold rooms, and benchtop environments. Storage boxes are typically lidded, grid-based containers used for long-term sample organization in ultra-low temperature conditions, while racks are open-frame supports used for active handling during laboratory workflows such as pipetting, vortexing, and reaction setup.
Cryogenic storage boxes are commonly designed to hold 81 vials (9&times;9 format) or 100 vials (10&times;10 format), and are compatible with storage conditions ranging from &ndash;196 &deg;C in liquid nitrogen vapor phase to +121 &deg;C for autoclave sterilization (depending on material). Tube racks, on the other hand, provide stable upright positioning of tubes during active benchwork and are not primarily intended for long-term freezer storage.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Cryogenic storage boxes for vials and microtubes
</li>
<li dir="ltr" aria-level="1">
Freezer storage boxes for -20&deg;C and -80&deg;C applications
</li>
<li dir="ltr" aria-level="1">
PCR tube racks for 0.2 mL tubes and strips
</li>
<li dir="ltr" aria-level="1">
Microcentrifuge tube racks for 0.5 mL to 2 mL tubes
</li>
<li dir="ltr" aria-level="1">
Polypropylene (PP) autoclavable storage boxes
</li>
<li dir="ltr" aria-level="1">
Stackable storage boxes for space-saving organization
</li>
<li dir="ltr" aria-level="1">
Hinged lid storage boxes for secure sample protection
</li>
<li dir="ltr" aria-level="1">
Color-coded racks for easy sample identification
</li>
</ul>
&nbsp;
<h2 data-section-id="flyrii" data-start="1159" data-end="1199">How to Choose Storage Boxes and Racks</h2>
&nbsp;
Vial Format and Capacity
The first selection criterion is compatibility with tube size and grid layout. The most common format is the 81-place (9&times;9) box designed for 1.0&ndash;2.0 mL cryovials. Smaller or specialized formats may accommodate 5 mL tubes or different vial diameters depending on grid spacing. Proper matching ensures secure fit, easy retrieval, and consistent sample organization in high-density storage systems.
Temperature Range
Material selection determines allowable storage conditions. Polycarbonate cryogenic boxes are the most versatile, supporting temperatures from liquid nitrogen levels (&ndash;196 &deg;C) through &ndash;80 &deg;C freezer storage and up to autoclave sterilization at +121 &deg;C. Cardboard freezer boxes with moisture-resistant coating are designed for economical freezer storage and can withstand ultra-low temperatures, but they are not suitable for autoclaving or long-term moisture exposure.
Tube Rack Materials and Use
Polypropylene racks are widely used because they are autoclavable and chemically resistant, making them suitable for sterile workflows. ABS and polystyrene racks provide lower-cost alternatives for general laboratory bench use but are not designed for autoclave conditions. For freezer organization, stainless steel racks are often used to hold multiple cryoboxes within &ndash;80 &deg;C upright freezer systems, improving accessibility and spatial organization.
Slide Storage Boxes
Microscope slide storage boxes are designed to protect standard 25 &times; 75 mm slides. They are available in 25-, 50-, and 100-slide capacities. Polypropylene versions are autoclavable and suitable for sterilized workflows, while fiberboard or ABS versions are typically used for room-temperature archival storage and transport.
Color Coding and Sample Identification
Color-coded storage boxes are widely used in biobanking and high-throughput laboratories to quickly differentiate sample groups without opening boxes or reading labels at freezer temperatures. Common systems include multiple lid colors paired with alphanumeric grids inside the box, enabling precise sample tracking and retrieval in large inventories.
&nbsp;
<h2 data-section-id="1jl751w" data-start="4067" data-end="4092">Specifications Context</h2>
&nbsp;
Modern polycarbonate cryogenic storage boxes are engineered for extreme temperature stability, typically rated from &ndash;196 &deg;C to +121 &deg;C, allowing use across liquid nitrogen vapor phase storage, &ndash;80 &deg;C freezers, and autoclave sterilization cycles. Cardboard freezer boxes are coated to resist moisture ingress and are optimized for cost-efficient high-density storage in ultra-low temperature environments.
The 81-place (9&times;9 grid) polycarbonate cryobox remains the standard format in most biorepositories and clinical research facilities due to its compatibility with SBS footprint freezer systems and automated inventory tracking workflows. These systems are widely used in genomics, cell banking, and pharmaceutical research environments.
For product details, specifications, or bulk ordering support, <a href="https://mbpinc.net/contact-us">the MBP team can help you</a> choose the right storage solution for your laboratory needs.

Storage Boxes & Racks

Biologix Slide Storage Boxes

Biologix® Slide Storage Boxes with Foam/Cork Lining

25 place, 100 place, foam, cork slide storage boxes/biologix

BIOLOGIX 25-PLACE (5.5X3.75X1.25”) ASSORTED COLOR (RED, YELLOW, GREEN, BLUE AND WHITE) NON-STERILE ABS MATERIAL SLIDE STORAGE BOX WITH FOAM LINING FOR USE WITH 1” AND 3” MICROSCOPE SLIDES.  COMES WITH REMOVEABLE COVER THAT INCLUDES SLIDE INDEX SHEET.  5 BOXES/PACK, 4 PACKS/CASE

BIOLOGIX 25-PLACE (5.5X3.75X1.25”) ASSORTED COLOR (RED, YELLOW, GREEN, BLUE AND WHITE) NON-STERILE ABS MATERIAL SLIDE STORAGE BOX WITH CORK LINING FOR USE WITH 1” AND 3” MICROSCOPE SLIDES.  COMES WITH REMOVEABLE COVER THAT INCLUDES SLIDE INDEX SHEET.  5 BOXES/PACK, 4 PACKS/CASE

BIOLOGIX 100-PLACE (8.25X6.37X1.25”) ASSORTED COLOR (RED, YELLOW, GREEN, BLUE AND WHITE) NON-STERILE ABS MATERIAL SLIDE STORAGE BOX WITH FOAM LINING FOR USE WITH 1” AND 3” MICROSCOPE SLIDES.  COMES WITH HINGED COVER THAT INCLUDES SLIDE INDEX SHEET.  5 BOXES/PACK, 6 PACKS/CASE

BIOLOGIX 100-PLACE (8.25X6.37X1.25”) ASSORTED COLOR (RED, YELLOW, GREEN, BLUE AND WHITE) NON-STERILE ABS MATERIAL SLIDE STORAGE BOX WITH CORK LINING FOR USE WITH 1” AND 3” MICROSCOPE SLIDES.  COMES WITH HINGED COVER THAT INCLUDES SLIDE INDEX SHEET.  5 BOXES/PACK, 6 PACKS/CASE

<h2 dir="ltr">What are Test Tubes?</h2>
 Test tubes for laboratory use are open-ended, cylindrical glass or plastic tubes used to hold, mix, incubate, and heat liquid and solid samples across a broad range of applications: bacteriological culture, tissue culture, clinical chemistry, serological assays, immunology, and general sample processing. Choose borosilicate glass for reusable, high-temperature, or chemically demanding applications; choose polystyrene disposable 12&times;75 mm tubes for flow cytometry and colorimetric assays; choose polypropylene capped tubes for microbial culture with anaerobic or gas-generating organisms.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">Glass test tubes in diverse formats for heating and chemical reaction workflows</li>
<li dir="ltr" aria-level="1">
Plastic polypropylene test tubes for routine laboratory use
</li>
<li dir="ltr" aria-level="1">
Graduated tubes for quick and easy volume estimation
</li>
<li dir="ltr" aria-level="1">
Conical and round-bottom tube formats for different applications
</li>
<li dir="ltr" aria-level="1">
Sterile disposable test tubes for clinical and diagnostic work
</li>
<li dir="ltr" aria-level="1">
Heat-resistant tubes for incubation and controlled heating steps
</li>
</ul>
&nbsp;
<h2 dir="ltr">How to Choose Test Tubes</h2>
 Material: Glass vs. Polypropylene vs. Polystyrene Borosilicate glass 3.3 (ASTM E438 Type I, Class B) test tubes withstand direct flame, autoclave sterilization at 121 &deg;C, and most solvents, acids, and bases. They are reusable and autoclavable, making them cost-effective over high-volume laboratory runs. Polystyrene (PS) disposable tubes offer outstanding optical clarity for flow cytometry (FACS), cell counting, and OD-based colorimetric assays, but cannot be autoclaved and should not be used with aromatic solvents or strong acids. Polypropylene (PP) tubes are chemically resistant, autoclavable, and available with screw caps for anaerobic culture or gas-generating reactions. Rimmed vs. Rimless Rimless test tubes (fire-polished ends) allow easier insertion of rubber or silicone stoppers and are preferred for plugging with cotton wool for microbial culture. Rimmed tubes have a flared lip that facilitates pouring and is compatible with spring-metal tube closures. Confirm your closure type before ordering in bulk. Size and Volume The most common test tube dimensions in clinical and research labs: 12&times;75 mm: ~5 mL capacity; standard for flow cytometry, FACS, serology 13&times;100 mm: ~10 mL; general culture and chemistry 16&times;100 mm: ~14 mL; culture and chemistry 16&times;125 mm: ~17 mL; microbiological culture 18&times;150 mm: ~25 mL; larger-volume digests and culture Wall thickness of 1.2 mm (light wall, borosilicate 3.3) is the standard for general lab use; heavy-wall versions are used for digestions and applications involving vacuum or pressure. Sterile vs. Non-Sterile Sterile borosilicate glass culture tubes (individually wrapped or bulk-sterilized) are required for microbial culture, cell culture, and any application where contamination would invalidate the result. Non-sterile tubes are adequate for chemistry, spectroscopy, and other abiotic applications. Disposable PS tubes from Corning (PYREX&trade;) and Globe Scientific are supplied sterile or non-sterile; confirm the specification on the lot certificate. 
<h2 dir="ltr"> Specifications Context</h2>
 Borosilicate glass 3.3 test tubes have a linear thermal expansion coefficient of 3.3 &times; 10⁻⁶ K⁻&sup1;, providing resistance to thermal shock from room temperature to 300 &deg;C (direct flame) and from 0 to 121 &deg;C (autoclave cycles). Light-wall tubes (1.2 mm uniform wall thickness) provide the standard for general laboratory use; heavy-wall variants (2.0 mm) are used for digestion vessels and pressurized applications. Corning PYREX&trade; disposable round-bottom rimless glass tubes for tissue culture conform to ASTM standards and are the reference format for bacteriological serology and cell wash procedures. MBP supplies Globe Scientific and NEST Scientific test tube lines for research and clinical labs across the USA, Canada, and worldwide. &nbsp; 
If you&rsquo;re choosing between glass and plastic or trying to match the right size to your workflow, it&rsquo;s worth getting that part right early &mdash; it makes everything downstream smoother and a lot less messy. <a href="https://mbpinc.net/contact-us">Contact the MBP team now!</a>

Test Tubes

Biologix® Test Tubes (Polystyrene)

5ml, 8ml PS, PP 12x75mm, 13x100mm conical bottom Cylindrical Test Tube

BIOLOGIX 12X75MM (5ML) CLEAR POLYSTYRENE NON-STERILE TEST TUBES.  CAPS SOLD SEPARATELY. 500 TUBES/PACK, 4 PACKS/CASE

BIOLOGIX 13X100MM (8ML) CLEAR POLYSTYRENE NON-STERILE TEST TUBES.  CAPS SOLD SEPARATELY. 250 TUBES/PACK, 8 PACKS/CASE

Biologix® Test Tubes Caps

BIOLOGIX 12X13.5MM BLUE POLYETHYLENE NON-STERILE CAP (FOR USE WITH TEST TUBES).  TUBES SOLD SEPARATELY.  1,000 CAPS/PACK, 2 PACKS/CASE

BIOLOGIX 12X17.5MM RED POLYETHYLENE NON-STERILE CAP (FOR USE WITH TEST TUBES).  TUBES SOLD SEPARATELY.  1,000 CAPS/PACK, 2 PACKS/CASE

<h2 dir="ltr">What are Vacuum Bottle-Top Filter Systems?</h2>
 Vacuum bottle-top filter systems are single-use, sterile filtration assemblies consisting of a graduated polystyrene funnel with an integrated membrane filter bonded to a polystyrene receiver bottle, connected by a hose-port adaptor to a house vacuum line or benchtop vacuum pump. The applied negative pressure (&minus;50 to &minus;100 kPa) draws liquid through the membrane into the receiver bottle, which is sealed after filtration for immediate use or cold-room storage.&nbsp;
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
50mL Vacuum Filtration Units for small-scale sterile sampling
</li>
<li dir="ltr" aria-level="1">
150mL Vacuum Filtration Systems for rapid reagent preparation
</li>
<li dir="ltr" aria-level="1">
250mL Filtration Units for routine buffer sterilization
</li>
<li dir="ltr" aria-level="1">
500mL Vacuum Filtration Cups for mid-scale media processing
</li>
<li dir="ltr" aria-level="1">
1000mL Large Volume Filtration for industrial-scale batching
</li>
<li dir="ltr" aria-level="1">
Sterile Bottle-Top Filters for secure aseptic transfer
</li>
</ul>
<h2 dir="ltr"> How to Choose Vacuum Filtration Systems</h2>
 PES vs. PVDF Membrane for Vacuum Filtration PES membranes provide low protein binding (~1&ndash;2 &micro;g/cm&sup2;), high flow rates, and broad aqueous-solution compatibility &mdash; the standard for routine DMEM, RPMI, HBSS, PBS, and supplement-containing media sterilization. PVDF membranes have slightly lower protein binding than PES and greater chemical resistance to mild organic solvents, mild acids, and alkaline solutions. Use PVDF when filtering protein-rich solutions (FBS, antibody preparations, conditioned medium with high protein content) or when mild organic solvents are present in the filter solution. Volume Selection 250 mL systems (50 mm diameter membrane, 50 mL funnel) suit small media aliquots, supplement solutions, and transfection reagent preparations. 500 mL systems (90 mm diameter membrane, 150 mL funnel) are the routine lab workhorse for standard 500 mL media bottle preparation and FBS filtration. 1,000 mL systems (90 mm diameter membrane, 350 mL funnel) handle full-liter media preparations and large-volume buffer sterilization. All NEST systems include a pre-attached, graduated polystyrene receiver bottle in the corresponding volume. Pore Size: 0.10 &micro;m vs. 0.22 &micro;m vs. 0.45 &micro;m 0.22 &micro;m is the sterilizing grade per USP &lt;1229.2&gt; and ICH Q9: retains all bacteria and fungi; used for routine cell culture media, PBS, and buffer preparation. 0.45 &micro;m is the clarification grade: used as a pre-filtration step before 0.22 &micro;m to remove large particulates from turbid or high-biomass samples (FBS, conditioned media, cell culture supernatants, crude lysates), extending 0.22 &micro;m filter throughput by 3&ndash;5&times; on difficult samples. 0.10 &micro;m is the mycoplasma-removal grade: required when preparing media for Mycoplasma-sensitive primary cell culture or when processing serum or supplementary reagents that may harbor Mycoplasma species. Note that 0.10 &micro;m filtration is substantially slower than 0.22 &micro;m due to the tighter membrane pore structure. Practical Tips for Maximum Throughput Pre-wet the membrane by briefly passing 5&ndash;10 mL of sterile water through before the sample &mdash; this wets the hydrophilic PES or PVDF membrane and reduces initial resistance. For FBS and other viscous solutions, pre-filter through 0.45 &micro;m before the 0.22 &micro;m step. Maintain a vacuum at &minus;50 to &minus;80 kPa; excessive vacuum (&gt; &minus;100 kPa) can shear fragile membrane pores and increase non-specific protein adsorption. Do not autoclave the assembled bottle-top filter &mdash; PES and PS components are not rated for autoclave sterilization. 
<h2 dir="ltr"> Specifications Context</h2>
 NEST Scientific vacuum bottle-top filters are manufactured from polystyrene funnel and receiver bottle components with PES or PVDF membranes. PES membranes have documented low protein binding (~1&ndash;2 &micro;g/cm&sup2;) per NEST scientific USA FAQ. Membrane diameter: 250 mL volume &rarr; 50 mm; 500 mL and 1,000 mL &rarr; 90 mm. The hose connector design accommodates various standard vacuum hose diameters. NEST PES 0.22 &micro;m vacuum filters are described as comparable in performance to leading brands, including Corning Stericup, Thermo Fisher Scientific, and Sartorius, per NEST Scientific USA's product page. All NEST vacuum filters are sterile and non-pyrogenic per the lot certificate. NEST Scientific vacuum bottle-top filters are stocked by MBP in all core SKUs. 
&nbsp;
Because your research should move faster than a slow-dripping filter. <a href="https://mbpinc.net/contact-us" title="Contact the Molecular Biology Products Inc. team" style="color: #236fa1;">Contact the Molecular Biology Products Inc. team</a> for a quote before your deadlines catch up with you.

Vacuum Filtration

Vacuum filtration unit-funnel, membrane: PES, pore size: 0.22um, diameter: 90mm, funnel volume: 500ml.

Vacuum filtration unit-funnel, membrane: CA, pore size: 0.22um, diameter: 90mm, funnel volume: 500ml, receiver volume: 500ml.

Biologix® Vacuum Filtration Unit-Funnel

Biologix® Vacuum Filtration Unit-Funnel, Case of 24\r\n

BIOLOGIX STERILE VACUUM FILTRATION UNIT-FUNNEL, MEMBRANE: PES,PORE SIZE: 0.22ΜM,DIAMETER:90MM, FUNNEL VOLUME: 500ML.   INDIVIDUALLY PACKED

BIOLOGIX STERILE VACUUM FILTRATION UNIT-FUNNEL, MEMBRANE: CA,PORE SIZE: 0.22ΜM,DIAMETER:90MM, FUNNEL VOLUME: 500ML.INDIVIDUALLY PACKED

Biopsy Cassettes

<h2 data-section-id="1l9wr55" data-start="0" data-end="29">What Are Biopsy Cassettes?</h2>
&nbsp;
Biopsy cassettes are specialized histology cassettes manufactured from acetal polymer (POM) and designed with fine 1 mm square mesh openings instead of the wider slots used in standard tissue cassettes. These fine mesh openings securely retain small tissue specimens such as gastric endoscopic biopsies, prostate needle cores, liver biopsies, and skin punch biopsies that could otherwise be lost during tissue processor agitation, vacuum cycles, and reagent exchanges. Like standard tissue cassettes, biopsy cassettes function as the specimen container throughout processing, embedding, and long-term paraffin block storage. Multi-compartment designs allow multiple tissue cores from different anatomical sites to be processed together while maintaining specimen orientation and identification.
Use biopsy cassettes for specimens smaller than approximately 3 mm. The fine 1 mm mesh is the key feature that prevents specimen loss during processing.
&nbsp;
<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">30&deg; Biopsy Cassettes: Classic angled design with dual labeling panels for clear identification and reliable handling.</li>
<li dir="ltr" role="presentation">35&deg; Biopsy Cassettes: Printer-optimized angle for smoother feeding and high-contrast labeling.</li>
<li>Foam Biopsy Pads: Hold delicate tissues firmly in place, preventing movement and damage.</li>
</ul>
&nbsp;
<h2 data-section-id="1h918vw" data-start="992" data-end="1025">How to Choose Biopsy Cassettes</h2>
&nbsp;
Single vs. Multi-Compartment
Single-compartment biopsy cassettes are the standard choice for processing one specimen per paraffin block and are suitable for most diagnostic biopsy applications. Multi-compartment cassettes, including four-compartment and six-compartment formats, allow several biopsy cores from different anatomical locations to be processed in the same cassette while preserving their positional identity. These formats are commonly used for prostate biopsy series and other multi-site sampling procedures.
Mesh Opening Size
Standard biopsy cassettes feature 1 mm square mesh openings that provide an effective balance between specimen retention and reagent flow. For ultrafine tissue cores, dispersed cell pellets, or particularly delicate specimens, microbiopsy or biomesh cassettes with smaller openings ranging from approximately 0.38 mm to 0.6 mm may provide better specimen containment.
Lid Design and Printer Compatibility
Globe Scientific biopsy cassettes utilize an integral click-shut hinged lid that closes securely and can be reopened multiple times without compromising closure integrity. This design is particularly useful during grossing procedures where specimens may need to be inspected before processing. Writing surfaces are available in both 30&deg; and 35&deg; angles to ensure compatibility with Leica and Sakura cassette labeling systems.
Foam Biopsy Pads
Biopsy foam pads are commonly used when processing extremely small tissue fragments. These polyester urethane foam inserts help immobilize specimens within the cassette, maintaining proper orientation and preventing movement during tissue processing while still allowing efficient reagent penetration and drainage.
Compatibility with Base Molds
Biopsy cassettes share the standard histology cassette footprint of approximately 40 &times; 28 &times; 6 mm, allowing compatibility with standard stainless steel and disposable plastic embedding molds. Multi-compartment designs maintain the same external dimensions while providing internal specimen separation.
&nbsp;
<h2 data-section-id="1jl751w" data-start="4594" data-end="4619">Specifications Context</h2>
&nbsp;
Globe Scientific biopsy cassettes are manufactured from durable acetal polymer and feature 1 mm square mesh openings engineered to maximize specimen retention while allowing efficient reagent penetration. The fine mesh design provides a large total open surface area for fluid exchange despite the smaller individual openings. These cassettes are resistant to formalin, xylene, graded alcohols, and acidic decalcifying agents commonly used in histology laboratories. The standard footprint of approximately 40 &times; 28 &times; 6 mm ensures compatibility with Leica ASP, Sakura VIP, Thermo Shandon Excelsior, and most other automated tissue processors. Globe Scientific maintains ISO 9001:2015 certification, and lot-specific conformance documentation is available upon request through MBP.
Protect your smallest samples with the professional standard. Check out our biopsy range and&nbsp;<a href="https://mbpinc.net/contact-us">hit up the MBP team</a> for a quote.

Biopsy Cassettes with Attached Lids, 30° Writing Area

1091B biopsy cassettes feature a 30° angled writing surface, two labeling side panels, and a secure attached lid that remains fixed to the cassette body throughout tissue processing to prevent lid-loss. Molded from acetal polymer (POM), they resist xylene, alcohols, formalin, and decalcifying solutions. Compatible with Leica ASP, Sakura VIP, Thermo Shandon Excelsior, and most automated tissue processors. Optimized for manual labeling; not compatible with standard cassette printers.

Manufacture

Cassette, Biopsy Embedding with Attached Lid, 30° Writing Area, BLUE, 500/Dispenser Box, 2 Boxes/Unit

Cassette, Biopsy Embedding with Attached Lid, 30° Writing Area, GREEN, 500/Dispenser Box, 2 Boxes/Unit

Cassette, Biopsy Embedding with Attached Lid, 30° Writing Area, ORANGE, 500/Dispenser Box, 2 Boxes/Unit

Cassette, Biopsy Embedding with Attached Lid, 30° Writing Area, WHITE, 500/Dispenser Box, 2 Boxes/Unit

Cassette, Biopsy Embedding with Attached Lid, 30° Writing Area, YELLOW, 500/Dispenser Box, 2 Boxes/Unit

Biopsy Cassettes with Attached Lids, 35° Writing Area

Globe Scientific Biopsy Embedding Cassettes 35° Writing Area (SKU 1095B, Blue) — acetal polymer, attached one-piece lid with thumb tab, large textured front panel plus two side labeling panels, printer-compatible. 1,000 cassettes/case (2 × 500 dispenser boxes). Also available in Green, White, and Yellow.

Cassette, Biopsy Embedding with Attached Lid, 35° Writing Area, BLUE, 500/Dispenser Box, 2 Boxes/Unit

Cassette, Biopsy Embedding with Attached Lid, 35° Writing Area, GREEN, 500/Dispenser Box, 2 Boxes/Unit

Cassette, Biopsy Embedding with Attached Lid, 35° Writing Area, ORANGE, 500/Dispenser Box, 2 Boxes/Unit

Cassette, Biopsy Embedding with Attached Lid, 35° Writing Area, WHITE, 500/Dispenser Box, 2 Boxes/Unit

Cassette, Biopsy Embedding with Attached Lid, 35° Writing Area, YELLOW, 500/Dispenser Box, 2 Boxes/Unit

<h2>What are methylation standards?</h2>
&nbsp;
Methylation standards are defined reference DNA materials with a known and confirmed methylation status, ranging from a fully methylated DNA (where every cytosine at CpG or other sites carries a methyl group) to a fully unmethylated DNA (where no cytosines are methylated) and intermediate or mixed standards containing a defined ratio of the two. The most widely used unmethylated control in bisulfite sequencing is lambda phage DNA, which is naturally unmethylated and can be spiked into a conversion reaction to estimate conversion efficiency.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Methylated and non-methylated DNA control sets for comparative epigenetic analysis and assay validation</li>
<li dir="ltr" role="presentation">Universal methylated DNA standards for methylation assessment workflows</li>
<li dir="ltr" role="presentation">Genomic DNA reference materials: for microbial and human methylation studies</li>
<li dir="ltr" role="presentation">Matched DNA sets: used in experimental models for controlled comparison of methylation status&nbsp;</li>
<li dir="ltr" role="presentation">Bisulfite-converted DNA standards: for downstream sequencing-based methylation and PCR analysis</li>
<li dir="ltr" role="presentation">Methylation spike-in controls: for sequencing normalization and high-throughput workflows</li>
<li dir="ltr" role="presentation">Mouse and human DNA methylation reference sets: for specific species epigenetic studies</li>
<li dir="ltr" role="presentation">Methylated DNA IP control kits for methylation assays involving immunoprecipitation</li>
</ul>
&nbsp;
<h2>How to use methylation standards</h2>
&nbsp;
Spike an unmethylated control into every bisulfite or enzymatic conversion reaction
Running an unmethylated DNA like lambda phage DNA alongside your samples in the same conversion reaction estimates the conversion efficiency of that specific run, since every remaining cytosine signal after conversion should be treated as a false positive, and this rate can be quantified and accounted for in downstream analysis.
Run a fully methylated positive control to confirm methylated cytosines are preserved
A fully methylated standard, such as DNA synthesized with 5-methyl-dCTP or commercially prepared methylated genomic DNA, confirms your conversion workflow correctly preserves methylated cytosines intact rather than inadvertently converting them, which would produce false-negative methylation calls.
Use a mixed or intermediate standard to calibrate quantitative methylation assays
A standard containing a defined ratio of methylated to unmethylated DNA, or a set of standards spanning a range of methylation percentages, provides a calibration curve for quantitative methylation assays like 5-methylcytosine ELISA, validating that the assay reports the expected methylation level across its full dynamic range.
Confirm standard stability before long-term storage or lot-to-lot use
Methylation control DNA has documented stability windows, and confirming that your standard's methylation status is stable under storage conditions, and consistent across lots, is necessary for reliable longitudinal monitoring of conversion efficiency.
Use standards to monitor workflow consistency over time
Running a conversion control in every batch allows longitudinal tracking of conversion efficiency across instrument runs, reagent lots, and protocol variations, helping catch workflow drift before it affects real sample results.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
Lambda phage DNA is the most commonly used unmethylated bisulfite conversion control because it is naturally unmethylated, commercially available, and well characterized, and it can be aligned to the known lambda phage reference genome after sequencing to calculate residual unconverted cytosine rates, providing a direct, interpretable measure of conversion efficiency. As of 2026, fully methylated and fully unmethylated standard sets are also used alongside enzymatic methyl-seq conversions to confirm that EM-seq's enzymatic mechanism correctly protects methylated cytosines and converts unmethylated ones, independent of the conversion chemistry used.
This category sits within DNA/RNA Methylation, alongside Bisulfite Conversion Kits, Non-Bisulfite Kits &amp; Reagents, and ELISA Kits &amp; Reagents. See the full reagents catalog and use Quick Order for recurring orders.
<a href="https://mbpinc.net/contact-us">Contact the expert team of Molecular Biology Products Inc. (MBP)</a> to get high-quality methylation standards for your lab today.

Methylation Standards

MSDS

Protocol

Bisulfite Converted Universal Methylated Human DNA Standard

Bisulfite Converted Universal Methylated Human DNA Standard (D5015) by Zymo Research — pre-converted human brain genomic DNA with >95% CpG methylation, 20 ng/µl, 1 µg/50 µl (50 reactions). Includes MLH1 validation primers.

Concentration

Sample Storage

Manufacturer

Shipping Condition

Storage Condition

<h2 dir="ltr">What Are miRNA Lentiviral Negative Controls?</h2>
 MicroRNAs (miRNAs) are approximately 22-nucleotide non-coding RNAs that regulate gene expression post-transcriptionally by binding to the 3&prime; UTR of target mRNAs, triggering mRNA degradation or translational repression via the RNA-induced silencing complex (RISC). Lentiviral delivery of miRNA expression constructs enables stable, long-term modulation of miRNA activity &mdash; essential where transient transfection approaches are insufficient.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Control Viruses models used in miRNA overexpression studies, for negative control normalization
</li>
<li dir="ltr" aria-level="1">
Validation of 3'UTR target utilizing bioluminescent-based reporter assays.
</li>
<li dir="ltr" aria-level="1">
miRNA-Off Control Lentiviruses used to baseline microRNA knockdown effects.
</li>
<li dir="ltr" aria-level="1">
Blank 5&rsquo; UTR reporter vector optimized for gene expression normalization and translational regulation studies&nbsp;
</li>
<li dir="ltr" aria-level="1">
Reporter Stable Cell Lines models with Luciferase or GFP markers for reliable assay standardization.
</li>
</ul>
<h2 dir="ltr"> How to Choose a miRNA Negative Control</h2>
 Experiment Type Matching miRNA mimic (gain-of-function) experiments require a non-targeting miRNA mimic control. miRNA inhibitor/antagomiR (loss-of-function) experiments require a non-targeting inhibitor control. Lentiviral miRNA expression requires an empty vector or scrambled miRNA sequence. Mimic Control Design A non-targeting miRNA mimic control is a double-stranded RNA molecule resembling a mature miRNA duplex but with no significant homology to any known miRNA target in human, mouse, or rat transcriptomes &mdash; entering RISC the same way as a functional mimic. Inhibitor Control Design Non-targeting miRNA inhibitor (antagomiR) controls are single-stranded antisense sequences that enter the relevant cellular compartment without blocking any known miRNA, establishing the baseline for inhibitor-treated versus non-inhibitor comparisons. Vector Backbone for Lentiviral Delivery Stable lentiviral expression of miRNAs is used for long-term gain-of-function studies; the matched non-targeting lentiviral control must use the same promoter and vector backbone as the experimental construct to isolate sequence-specific effects. Inducible Format Availability Tet-On (doxycycline-responsive) non-targeting miRNA lentiviral controls are available for experiments requiring temporal control, used alongside inducible experimental constructs to control for doxycycline treatment itself. 
<h2 dir="ltr"> Specifications Context</h2>
 miRNA controls are designed to reflect the endogenous processing pathway of microRNAs, including Drosha and Dicer-mediated maturation before RISC loading. Because siRNA and miRNA constructs enter the RNA interference pathway differently, pathway-matched controls are important for accurate experimental interpretation. Non-targeting miRNA controls help distinguish sequence-specific effects from background effects associated with vector delivery and miRNA pathway activation. Available formats include lentiviral vectors, packaged viruses, reporter constructs, and stable cell line controls for miRNA and UTR-based studies. Product availability reflects MBP's catalogue as of mid-2026. 
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the expert team at MBP</a> and request a quote for efficient miRNA control requirements.

miRNA Control

Lentiviral Vector Amplification Protocol

AAV Infection Guideline

AAV Packaging Protocol

Selection-Drug Killing Curve

Lentivector Packaging Protocol

Lentivirus Infection Protocol

Blank (Control) 3'UTR GFP Stable Cell Line

Unit Quantity

Species

Vector Map

Blank (Control) 3'UTR Luciferase Stable Cell Line

<h2 dir="ltr">What Are Lentiviral Control &amp; Reporter Constructs?</h2>
 Rigorous experimental design requires matched controls that enter the same delivery workflow as the test construct. Lentiviral control and reporter constructs use the same vector backbones, promoters, and packaging systems as experimental vectors &mdash; ensuring observed differences between treated and control cells reflect genuine biological effects rather than artefacts of the delivery process.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1"><a href="https://mbpinc.net/reagents/dna/cloning-services-products/lentivirus/over-expression/control/reporter/luciferase-reporter">Luciferase Reporters: </a>for reliable assay validation using selective promoter-specific vectors, fluorescent reporters, dual-reporter systems, and background control</li>
<li data-section-id="644n3l" data-start="108" data-end="253">Fluorescent Reporter Controls: GFP and RFP lentiviral vectors and viruses for monitoring transduction efficiency and transgene expression.</li>
<li data-section-id="19809zr" data-start="255" data-end="399">Blank Control Vectors &amp; Viruses: Empty lentiviral backbones for negative controls, promoter evaluation, and custom construct development.</li>
<li data-section-id="112pumm" data-start="401" data-end="569">Promoter &amp; UTR Reporter Systems:&nbsp; Reporter vectors designed for promoter activity and regulatory element analysis, including promoter and 5&prime; UTR reporter formats.</li>
<li data-section-id="1j5a9h3" data-start="571" data-end="736">Selectable Marker Controls: Control constructs with puromycin, neomycin, hygromycin, and blasticidin resistance markers for selection and workflow validation.</li>
</ul>
<h2 dir="ltr"> How to Choose Control &amp; Reporter Constructs</h2>
 Control Type Needed Empty vector controls carry only the selection marker (puromycin, blasticidin, or hygromycin resistance) without a gene of interest, providing the baseline reference for overexpression or knockdown experiments. Fluorescent Reporter Channel GFP and RFP lentiviral reporters allow real-time monitoring of transduction efficiency by flow cytometry or fluorescence microscopy, matching the experimental construct's promoter for an accurate expected-expression reference. Luciferase Reporter Pairing Firefly luciferase (P. pyralis) and Renilla luciferase (R. reniformis) are the two most commonly paired reporters; because they use different substrates (D-luciferin and coelenterazine, respectively), both signals can be measured sequentially from the same sample. Promoter-less Baseline A promoter-less dual luciferase control vector provides a no-promoter baseline against which promoter-driven reporter constructs are normalised &mdash; useful for establishing background signal levels. Vector Backbone Matching Using a matched vector backbone ensures observed differences between experimental and control cells are due to the transgene, not differences in vector, promoter strength, integration preference, or selection marker. 
<h2 dir="ltr"> Specifications Context</h2>
 Because lentiviral integration is heritable, transduced cells maintain stable reporter gene expression across cell divisions &mdash; stable luciferase or GFP reporter cell lines generated this way are widely used in drug screening, pathway activation assays, and long-term in vivo imaging. Through ABM, MBP can supply promoter-reporter lentiviral constructs covering human and mouse promoters, driving firefly luciferase or GFP expression, as plasmid DNA or pre-packaged particles. Both plasmid and pre-packaged formats are available for immediate dispatch, with institutional account pricing available for core facilities. Core facilities managing reporter constructs across multiple research groups often standardise on a small set of validated control vectors to simplify inventory and ensure consistency across projects.&nbsp; 
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today to get high-quality lentiviral control/reporters for your lab.