Brands

<h2 data-section-id="3d1466" data-start="0" data-end="47">What are cell culture buffers and solutions?</h2>
&nbsp;
Cell culture buffers and balanced salt solutions are isotonic solutions used to wash, dilute, transport, and temporarily maintain cells outside of complete growth media. Unlike culture media, these solutions do not contain the nutrients and growth factors required for cell proliferation. Instead, their primary role is to maintain physiological pH and osmotic balance while protecting cells from stress during handling and experimental procedures.
The most commonly used cell culture buffers include PBS (Phosphate-Buffered Saline), DPBS (Dulbecco's Phosphate-Buffered Saline), HBSS (Hank's Balanced Salt Solution), and EBSS (Earle's Balanced Salt Solution). These solutions are widely used in cell washing, passaging, tissue dissociation, sample preparation, immunoassays, and short-term cell maintenance.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Standard Isotonic Buffers to wash cells, maintain osmotic balance, and dilute reagents.</li>
<li dir="ltr" role="presentation">Biological Buffering Agents for metabolic support and pH maintenance.</li>
<li dir="ltr" role="presentation">Cell Dissociation &amp; Neutralizing Reagents maintain high cell viability and are used for cell recovery, detachment, and passaging</li>
<li dir="ltr" role="presentation">Surface Coating &amp; Matrix Solutions with high-grade gelatin for improved cell attachment.</li>
<li dir="ltr" role="presentation">Insulin-Transferrin-Selenite (ITS), Bovine Serum Albumin (BSA), and high-purity Holo-Transferrin for enhanced cell growth and viability</li>
</ul>
&nbsp;
<h2 data-section-id="1cuz7jf" data-start="1165" data-end="1216">How to choose cell culture buffers and solutions</h2>
&nbsp;
PBS vs. DPBS PBS is a simple sodium chloride/phosphate buffer solution. DPBS adds potassium chloride and may include calcium, magnesium, glucose, and pyruvate depending on formulation. The practical difference between PBS and DPBS formulations is minimal &mdash; both maintain pH 7.2-7.4 and osmolality ~280-315 mOsm/kg and are functionally interchangeable for standard washing, immunoassay, and sample preparation applications. If your protocol is sensitive to minor salt concentration differences, compare specific formulation sheets rather than assuming equivalence. &nbsp; Calcium/magnesium-free vs. calcium/magnesium-containing Calcium and magnesium facilitate cell-cell and cell-surface adhesion. Calcium/magnesium-free PBS, DPBS, or HBSS is required: before enzymatic dissociation (residual Ca/Mg inhibits trypsin, requiring more enzyme and harsher conditions &mdash; the most common cause of poor trypsinization results), for rinsing EDTA or other chelators from culture, and for minimizing cell-cell aggregation during gentle dissociation or suspension recovery. Calcium/magnesium-containing formulations support cell binding and clumping, useful for transport applications or attachment-dependent procedures. &nbsp; HBSS/EBSS vs. PBS/DPBS for short-term maintenance HBSS and EBSS include sodium bicarbonate buffering and may include glucose, providing meaningfully better short-term physiological support for cells &mdash; particularly under CO₂ atmosphere &mdash; than the simpler PBS/DPBS formulations. Use HBSS/EBSS when cells need to remain viable for a meaningful period outside complete growth media (tissue dissociation workflows, transport, short-term holding). Use PBS/DPBS for washing steps, immunoassay/Western blot dilutions, and sample preparation where osmotic balance &mdash; not metabolic support &mdash; is the requirement. &nbsp; Phenol red and glucose/pyruvate variants DPBS and HBSS are available with or without phenol red and with or without glucose/pyruvate, allowing matching to downstream applications (phenol red-free for fluorescence work; glucose/pyruvate-containing for short-term metabolic support). &nbsp; Endotoxin and quality testing Regular quality testing of balanced salt solutions includes osmolality, pH, stability, and screening for endotoxins and bacterial/fungal contamination. For immune cell handling and other endotoxin-sensitive applications, premium formulations document endotoxin levels below 0.005 EU/mL &mdash; a meaningfully tighter specification than standard research-grade buffers. &nbsp; Powder vs. liquid format Powdered balanced salt solutions are manufactured without sodium (to avoid sodium bicarbonate off-gassing during storage), requiring sodium bicarbonate addition, pH adjustment, and sterile filtration at time of preparation &mdash; following the same principle as powdered classic media.Specifications context
&nbsp;
<h2>Specifications context</h2>
&nbsp;
Most balanced salt solutions are formulated to maintain physiological conditions with a pH of approximately 7.2&ndash;7.4 and osmolality ranging from about 280&ndash;315 mOsm/kg. These properties help minimize osmotic stress and maintain cell viability during handling.
Calcium- and magnesium-free DPBS remains one of the most commonly specified buffers for cell dissociation workflows because it improves the effectiveness of trypsin and other detachment enzymes. HBSS and EBSS continue to be widely used when short-term metabolic support is required outside complete growth media.
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today to get high-purity buffers and solutions for your lab.

Buffers & Solutions

Buffers/Salts

MSDS

CHIR99021

Unit Quantity

Concentration

Purity

Storage Condition

Caution

Shipping condition

Microscope Accessories

<h2>What Are Microscope Accessories?</h2>
&nbsp;
Microscope accessories are supplementary components that configure, upgrade, or expand the function of a base microscope beyond its standard out-of-the-box specification. They fall into several categories: imaging accessories (cameras, camera adapters, camera relay lenses) for digital image capture and video documentation; optical accessories (additional or replacement objective lenses, eyepieces, auxiliary objectives for stereo microscopes) that change magnification or improve optical quality; fluorescence accessories (filter cube sets, LED fluorescence modules, mercury lamp adapters, UV/visible filter wheels) for adding or expanding fluorescence capability; stage accessories (multiwell plate holders, slide holders, cross-roller stages, motorized XY stage inserts, focus drives) that expand sample handling; illumination accessories (fiber optic illuminators, ring lights, polarizers, dark-field condensers) for alternative contrast methods; and maintenance and consumable accessories (immersion oil, lens paper, slide cleaning kits, replacement illuminator bulbs). Because accessory designs are instrument-specific (not all cameras, objectives, or stage inserts are universally compatible), identify the microscope model and manufacturer before ordering any accessory. Always identify the exact microscope model and manufacturer before ordering any accessory; thread standards, bayonet mounts, tube lengths, and connector formats vary significantly between brands and generations.
&nbsp;
<h2 class="PDq2pG_selectionAnchorContainer" data-section-id="bxblbi" data-start="0" data-end="23">What You Will Find:</h2>
&nbsp;
<ul data-start="25" data-end="548" data-is-last-node="" data-is-only-node="">
<li data-section-id="192mrl8" data-start="25" data-end="131">
Microscope Cameras for high-resolution image and video capture, including HD and 4K imaging options.
</li>
<li data-section-id="1om3e0r" data-start="132" data-end="232">
Photo Port Adapters and Camera Tubes for connecting digital cameras to compatible microscopes.
</li>
<li data-section-id="115dwii" data-start="233" data-end="331">
Microscope Adapters designed to support a wide range of imaging and mounting configurations.
</li>
<li data-section-id="1lr2i0i" data-start="332" data-end="437">
LED Illuminators that enhance specimen visibility and image quality across microscopy applications.
</li>
<li data-section-id="wc9g2" data-start="438" data-end="548" data-is-last-node="">
Digital Imaging Accessories that enable documentation, image analysis, teaching, and research workflows.
</li>
</ul>
&nbsp;
<h2>How to Choose Microscope Accessories</h2>
&nbsp;
Digital cameras and adapters
Microscope cameras attach to the trinocular port (or monocular camera port on some models) via a C-mount camera adapter with an integrated relay lens. The relay lens magnification (typically 0.35x, 0.5x, or 1x) determines the effective field of view on the camera sensor. Choose a CMOS camera with 5 to 20 megapixels for brightfield documentation and routine fluorescence; scientific CMOS (sCMOS) or cooled CCD cameras for low-light fluorescence quantification. Confirm the camera software is compatible with the microscope's control software (if motorized).
Objective lenses
Replacement or additional objectives must match the microscope's objective thread standard and tube length (160 mm finite or infinity-corrected). Never mix finite-optics and infinity-corrected objectives on the same nosepiece; the image-forming properties are incompatible. Plan-apochromat objectives in the same brand family as the microscope are the safest choice for optical performance and parfocality with the existing objective set.
Fluorescence filter cube sets
Fluorescence filter cubes contain an excitation bandpass filter, a dichroic mirror, and an emission bandpass filter, which are the three components that define which fluorescent dye or protein is imaged. Common filter sets: DAPI (Ex 360/40, Di 400LP, Em 460/50); FITC/GFP (Ex 470/40, Di 495LP, Em 525/50); TRITC/mCherry (Ex 550/25, Di 565LP, Em 605/70); Cy5 (Ex 620/60, Di 660LP, Em 700/75). Confirm the cube block type (Olympus U-MF2, Nikon B-2A, Zeiss 38HE, or other) matches the filter cube turret of the specific microscope model.
Stage inserts and sample holders
Stage inserts expand sample compatibility: multiwell plate holders (96-well, 384-well, 6-well) for high-content imaging; glass-bottom dish holders for live-cell imaging with oil-immersion objectives; slide holder adapters for larger or smaller slide formats; and universal stage inserts for non-standard containers. Confirm the stage insert dimensions match the microscope's mechanical stage cutout and that the height profile is compatible with the condenser working distance for transmitted illumination.
LED fluorescence modules
LED fluorescence modules replace or augment mercury arc lamps in the fluorescence port of existing microscopes, providing individual LED channels for DAPI, GFP, TRITC, and Cy5 excitation. LED upgrades are available as bolt-on add-ons for many research-grade inverted and upright microscopes and significantly extend the fluorescence illumination service life from 200 to 300 hours (mercury) to 50,000+ hours (LED). Confirm the LED module's mounting standard and control interface (USB, TTL, or software-triggered) is compatible with the microscope.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Immersion oil for oil-immersion microscopy must match the refractive index for which the objective is designed; standard immersion oil has a refractive index of 1.515 at 23 degrees C (per ASTM and DIN standards). Using oils with different refractive indices introduces spherical aberration. Viscosity matters for the application: low-viscosity oils (Type A, 150 mPas) spread easily and are used for fast scanning; high-viscosity oils (Type B, 1250 mPas) resist creep at elevated stage temperatures. Clean all residual immersion oil from objectives immediately after each use with lens tissue dampened with appropriate lens cleaning solution; dried immersion oil is difficult to remove and can permanently damage the objective coating.&nbsp;
&nbsp;
To discuss product availability or get selection guidance,&nbsp;<a href="https://mbpinc.net/contact-us">contact the MBP team</a>.

EDC-000-PRO-Group-Microscopes Catalog

EDC-000-PRO-Group-TDS-EDC-10000-PRO

EDC-000-PRO-Group-TDS-EDC-18000-PRO

CMEX Pro High-Speed Cameras

CMEX Pro High-Speed Microscope Cameras

The EDC-000-PRO CMEX Pro series by Euromex delivers USB 3.0 high-speed microscopy cameras in 5.1 MP (EDC-5000-PRO), 10 MP (EDC-10000-PRO), and 18 MP (EDC-18000-PRO) configurations — all with 1/2.3–1/2.5-inch CMOS sensors, C-mount, and ImageFocus Alpha software for Windows 10/11 and Mac OS.

Manufacture

CMEX-5 Pro, 5.0MP digital USB-3 camera with 1/2.5 inch CMOS sensor

CMEX-10 Pro, 10MP digital USB-3 camera with 1/2.3 inch CMOS sensor

CMEX-18 Pro, 18.0MP digital USB-3 camera with 1/2.3 inch CMOS sensor

<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.

Control/Reporter

Lentiviral Vector Amplification Protocol

Lentivector Packaging Protocol

Lentivirus Infection Protocol

AAV Infection Guideline

AAV Packaging Protocol

Selection-Drug Killing Curve

CMV Promoter Reporter Lentiviral Vector (GFP)

Vector Map

Note

Shipping Condition

CMV Promoter Reporter Lentiviral Vector (Luc)

Freezers.Accessories

<h2>What Are Laboratory Freezer Accessories?</h2>
&nbsp;
Laboratory freezer accessories fall into four functional groups: organizational hardware that maximizes storage density and sample accessibility; temperature monitoring and alarming systems that protect sample integrity and support compliance; backup protection systems that guard against temperature excursions during power failures; and containment and labeling consumables that prevent sample misidentification and physical damage. Effective freezer accessory selection increases the number of samples stored per unit volume, reduces the time the freezer door is held open during access (directly protecting sample stability), and provides the electronic audit trail required by regulatory frameworks, including CAP, CLIA, GxP, and FDA 21 CFR Part 11. Match accessories to the freezer temperature, sample tube format, and regulatory compliance framework applicable to your laboratory.
&nbsp;
<h2 dir="ltr">What You Will Find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Storage Boxes &amp; SST Drawers: High-quality stainless steel drawer sets and storage boxes specifically designed to maximize space and organization within upright and stackable ULT freezers.
</li>
<li dir="ltr" aria-level="1">
CO2 Backup Systems: Critical emergency backup solutions for ultra-low freezers that safeguard your inventory against sample loss during power outages or mechanical failures.
</li>
<li dir="ltr" aria-level="1">
Insulated Shipping Cubes: Advanced VIP insulated containers engineered for the secure and temperature-stable transport of high-value biological materials.
</li>
<li dir="ltr" aria-level="1">
Specialized Inventory Tools: Custom-fit shelving and racking solutions that ensure unrestricted airflow and easy access to your most important specimens.
</li>
</ul>
&nbsp;
<h2>How to Choose Freezer Accessories</h2>
&nbsp;
Freezer racks and storage boxes
Standardized upright freezer racks hold stacked sample storage boxes in fixed positions within the cabinet, enabling systematic sample organization and reducing search time during access. Standard 2-inch (5 cm) sample boxes are the most common format and fit racks in most upright and chest ULT freezers; 3-inch (7.5 cm) boxes store fewer boxes per rack but hold more tubes per box. Rack configurations include fixed upright racks (anchored to cabinet floor or wire shelf), side-access sliding drawer racks (pulled out horizontally for access without removing the whole rack), and adjustable racks for non-standard box sizes. Confirm rack dimensions against the freezer cabinet's internal width, depth, and shelf spacing before ordering.
Sample storage boxes and dividers
Cryogenic sample storage boxes (cryoboxes) are fabricated from cardboard (economy, single-use), high-density polyethylene (HDPE, reusable), polypropylene (PP, autoclavable), or stainless steel (autoclavable, chemically resistant) and hold 9x9 (81 positions), 10x10 (100 positions), or 8x8 (64 positions) tubes per box. Insert dividers (indexed alphanumerically) to create individual tube compartments to prevent tube movement, mixing, and label abrasion during access. For 1.5 mL microcentrifuge tubes, 81-position 9x9 dividers in a 2-inch box are standard; for 15 mL conical tubes, dedicated large-tube racks are required.
Temperature monitoring and data logging
Continuous temperature monitoring systems for ULT freezers include: standalone digital thermometers with external min/max recording probes inserted through door gasket access ports; USB data loggers that record temperature at programmable intervals (1-60 minutes) with NIST-traceable calibration certificates; Wi-Fi-connected wireless sensors with 24/7 real-time cloud monitoring, configurable high/low alarm thresholds, and email/SMS notification (rated to -100 degrees C for ULT applications); and integrated freezer-connected monitoring systems that read data directly from factory-installed cabinet sensors via a dedicated data port. Annual calibration of monitoring probes against NIST-traceable standards is required for CAP, CLIA, and GxP compliance.
Backup protection systems
CO2 backup injection systems activate when cabinet temperature rises above a preset high-alarm threshold (typically 10 degrees C above the normal setpoint), injecting CO2 from an external cylinder through a solenoid-controlled valve into the freezer cabinet, maintaining temperature for 4-12 hours. LN2 (liquid nitrogen) backup injection systems provide similar protection at deeper temperatures and with longer holdover time, but require access to an LN2 supply. Both systems require connection to an external gas supply, installation of solenoid valves, and periodic cylinder replacement or LN2 refill scheduling.
Cryo labels and identification
Cryogenic-rated labels are required for sample tubes stored in ULT and cryogenic conditions; standard adhesive labels lose adhesion at -80 degrees C and fall off during access in cold rooms, causing catastrophic sample misidentification. Cryogenic labels are printed on polyester or polypropylene film with acrylic or cryogenic-grade adhesive rated to -196 degrees C (liquid nitrogen temperatures). Laser-printable cryolabels, wrap-around tube labels, and flag labels are available for 0.5 mL, 1.5 mL, 2 mL, 15 mL, and 50 mL tubes. Barcode-compatible cryolabels enable integration with laboratory information management systems (LIMS).
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Standard 2-inch (5.4 cm) sample boxes fit universal rack systems across most major ULT freezer brands (Thermo Fisher TSX, PHCbi MDF-DU, Esco Lexicon); 3-inch (7.6 cm) boxes require racks specifically designed for that format. Wi-Fi temperature monitoring sensors for ULT applications should be rated for a measurement range of at least -100 degrees C to 0 degrees C; sensors not rated for ULT temperatures lose calibration accuracy below -60 degrees C. NIST-traceable temperature calibration for monitoring probes is required at least annually under CAP and CLIA accreditation, using traceable reference standards with uncertainty documentation. Cloud-based temperature monitoring systems with 21 CFR Part 11-compliant audit trails and automated compliance reporting have become standard in GxP-regulated laboratory environments, replacing manual temperature logbooks and standalone chart recorders.&nbsp;
&nbsp;
Enhance your laboratory storage setup today&mdash;explore our freezer accessories and <a href="https://mbpinc.net/contact-us">reach out to the MBP team</a> for a quote.

Freezer Accessories

CO2 Backup System for Ai -86C ULT Ultra-Low Freezers

G-CO2 by Across International (Ai) is a CO2 backup system for Ai Glacier and RapidChill -86 °C ultra-low temperature (ULT) freezers. In the event of compressor failure or power loss, it automatically delivers CO2 into the cabinet to maintain sub-zero temperatures and protect irreplaceable biological samples including cell lines, serum banks, and clinical specimens. An essential safeguard for institutional biostorage facilities and high-value sample collections. Contact MBP for full technical datasheet.

Electrical requirements

Cooling

Cooling type

Refrigerant

Injection cycle during operation

Thermostat

Cryo valve

Backup battery

Safety

Compatible models

Connection to freezer

Maintenance

Microcentrifuge Accessories

<h2>What Are Microcentrifuge Accessories?</h2>
&nbsp;
Microcentrifuge accessories maintain performance, extend tube-format versatility, and ensure safe operation of benchtop microcentrifuges. These include replacement fixed-angle rotors for 12&ndash;24 &times; 1.5/2.0 mL tube positions, tube adapters for 0.5 mL and 0.2 mL formats, aerosol-tight sealed rotor lids for biocontainment of infectious specimens, balance tubes for partial-load runs, and specialty rotors for PCR strips or 5.0 mL tubes where supported by the centrifuge model. All microcentrifuge accessories are model-specific, as rotor coupling systems and tube bore dimensions differ between manufacturers and even between models within the same brand, making exact model verification essential before ordering.
&nbsp;
<h2>What You Will Find:</h2>
&nbsp;
<ul>
<li>High-quality adapters and rotors for precise and reliable tube fit</li>
<li>Multiple formats including PCR strips, microtubes, plates, and spin columns</li>
<li>Specialized and high-capacity rotors for enhanced compatibility</li>
<li>Swing-out and sealed options for reliable and contamination-free processing</li>
</ul>
&nbsp;
<h2>How to Choose Microcentrifuge Accessories</h2>
&nbsp;
Replacement Rotor Identification
The rotor model number is typically printed on the rotor body or listed in the centrifuge user manual. Cross-reference it with the manufacturer's accessory catalog to confirm that the coupling system matches the centrifuge motor shaft. For standard 12-position rotors, verify compatibility with both 1.5 mL and 2.0 mL microtubes.
Tube Adapter Sizing
For 0.5 mL adapters, ensure the outer diameter closely matches the rotor bore so the tube remains secure during operation. For 0.2 mL adapters, confirm that PCR tubes are positioned correctly to achieve the intended centrifugal force while maintaining stability throughout the run.
Aerosol-Tight Sealed Lids
Choose sealed lids rated for the rotor's maximum operating RCF. O-rings should be inspected regularly for flattening, cracking, or discoloration and replaced immediately if any signs of wear appear. Maintaining replacement O-rings for frequently used lids helps ensure continued safe operation.
Specialty Rotors
Some microcentrifuge models support optional rotors for 5.0 mL tubes, PCR strips, or microplates. These accessories expand workflow flexibility but may operate at lower maximum RCF values than standard 1.5 mL rotors. Always verify the rated speed and force limits before use.
Balance Tubes
Balance tubes help maintain proper rotor balance during partial-load runs. They should closely match the mass and dimensions of the sample tubes being processed. Proper balancing reduces vibration, minimizes bearing wear, and supports long-term centrifuge performance.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Many modern fixed-angle rotors and polypropylene adapters are autoclavable, although specific sterilization requirements vary by manufacturer and material. Always follow the OEM maintenance and decontamination guidelines for each accessory. Rotor service life is generally determined by cumulative operating hours and manufacturer recommendations rather than visual appearance alone.
Sealed rotor lid systems with one-touch release mechanisms have become standard in modern molecular diagnostic laboratories, providing improved safety, easier maintenance, and enhanced biocontainment for regulated workflows.
Stop wasting time searching. The best microcentrifuge accessories are right here at MBP Products. <a href="https://mbpinc.net/contact-us">Connect with our expert team</a> to get your equipment accessories today.

COMBI-Rotor 24 x 1.5/2.0ml and 4 x PCR strips with Quick-Lock lid (for Z216 series only)

The COMBI-Rotor Z216-2420S by Hermle Labortechnik is a fixed-angle combination rotor for Hermle Z216 series microcentrifuges, reaching 15,000 RPM and 21,631 xg. It holds 24 × 1.5/2.0 ml microtubes and 4 × PCR strips simultaneously, secured by a Quick-Lock lid. Purpose-built for high-speed DNA/RNA pelleting, PCR strip spin-down, and protein precipitation in molecular biology labs.

Product Literature

COMBI-rotor for 24 x 1.5/2.0ml and 2 x PCR Strips (16 x 0.2ml), each

The C2417-RCMB by Benchmark Scientific is an optional COMBI-Rotor for the MC-24R microcentrifuge that holds 24 x 1.5/2.0 ml tubes and 2 x PCR strips (16 x 0.2 ml) simultaneously, reaching 13,500 rpm / 16,800 xg.

Vortex Mixers Accessories

<h2>What are vortex mixer accessories?</h2>
&nbsp;
Vortex mixer accessories are the interchangeable cup heads, foam inserts, and platform adapters that convert a standard single-tube vortex mixer to batch-process multiple tubes or different vessel formats simultaneously. The standard single-tube cup head can be replaced with a multi-tube foam insert holding 6 to 24 microcentrifuge tubes, a tube strip or microplate adapter, or a platform-style attachment for larger vessel formats. These accessories are typically instrument-specific, using a proprietary attachment mechanism that varies between vortex mixer brands.&nbsp;
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Tube racks for 0.5 ml, 1.5/2.0 ml, 12 mm, 13 mm, and 15 ml tubes</li>
<li dir="ltr" role="presentation">High-capacity tube racks for holding up to 96 samples</li>
<li dir="ltr" role="presentation">Horizontal heads for mixing 2 &times; 50 ml tubes and 4 &times; 15 ml tubes</li>
<li dir="ltr" role="presentation">Foam tube holders for 6 mm, 10 mm, 12 mm, and 16 mm tubes</li>
</ul>
&nbsp;
<h2>How to choose vortex mixer accessories</h2>
&nbsp;
Select foam inserts by the tube format they accommodate
Foam inserts for vortex mixers are sized to hold specific tube formats by pressing the closed tube caps into the foam at defined positions: standard microcentrifuge inserts hold 1.5 mL and 2 mL tubes, larger foam blocks accommodate 15 mL and 50 mL conical tubes, and low-profile inserts hold 0.5 mL tubes or PCR strip tubes in defined arrays. Check that the insert format matches the tube types you use most and that the insert is rated for your vortex mixer's speed range.
Confirm accessory compatibility with your vortex mixer model
Vortex mixer accessories attach via model-specific connectors &mdash; threaded onto the drive spindle or clipped onto the instrument head &mdash; and are not universally compatible between brands or models. Always check that the specific accessory is listed as compatible with your vortex mixer model before ordering.
Use a microplate adapter for 96-well plate mixing
Microplate vortex adapters replace the standard cup head with a flat or recessed platform sized to hold a standard 96-well plate, allowing entire plates to be mixed in continuous mode for ELISA plate washing steps, microplate cell resuspension, and plate-format biochemical assays. The adapter should be rated for the speed at which it will be used to prevent plate sliding.
Check that foam insert speed ratings are compatible with your operating speed
Foam inserts are rated for a maximum operating speed, and using a foam insert at speeds above its rating risks tubes not being securely retained by the foam compression at high rpm. Confirm that the insert's rated speed covers your intended operating speed before batch-processing valuable samples.
Consider a universal platform adapter for flexible use
Some vortex mixer manufacturers offer a universal platform adapter that replaces the cup head with a flat non-slip platform, accepting a wide range of vessel formats using a non-slip mat for retention. While less format-specific than a dedicated foam insert, a universal platform provides flexibility for less common vessel formats.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
Foam inserts work by compressing foam around tube caps to provide frictional retention during high-speed oscillation; foam material and cell size determine tube sizes accommodated and maximum safe speed. As of 2026, inserts accommodating PCR strip tubes alongside microcentrifuge tubes in a single insert have become available, reducing the number of separate formats needed.
<a href="https://mbpinc.net/contact-us">Contact the MBP team</a> today to request a quote and find the right accessories for your vortex mixer.

Vortex Mixer Accessories

COMBO™ head for one microplate and microtubes (38 x 1.5ml and 28 x 0.5ml tubes)

BV1000-COMBO by Benchmark Scientific is an optional combination head that holds either one microplate or 66 microtubes (38 x 1.5mL and 28 x 0.5mL), compatible with BenchMixer (BV1000) and Mortexer (BV1005) vortex mixers.

<h2>What Are Centrifuge Tubes?</h2>
 Centrifuge tubes are cylindrical laboratory containers with caps that are used to separate, pellet, and store biological or chemical samples through centrifugal force. They are commonly made from polypropylene (PP) or polystyrene (PS) and are available in sizes ranging from small 0.5 mL microtubes to larger 50 mL conical tubes. These tubes are widely used for cell pelleting, protein precipitation, DNA and RNA extraction, tissue homogenate clarification, and long-term sample storage. Depending on the material, they can withstand temperatures from &minus;80 &deg;C to +121 &deg;C.
In short, the best centrifuge tube depends on your centrifuge rotor, required g-force, sample volume, and sterility needs. 
<h2>What You Will Find: </h2>
<ul>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes" title="All Centrifuge Tubes">All Centrifuge Tubes</a>: Comprehensive selection of 15 mL and 50 mL conical tubes with clear graduations for daily lab workflows.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/oak-ridge-style-centrifuge-tubes" title="Oak Ridge Style Centrifuge Tubes">Oak Ridge Style Centrifuge Tubes</a>: High-speed, chemical-resistant tubes designed to withstand extreme RCF without deformation.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/centrifuge-bottles" title="Centrifuge Bottles">Centrifuge Bottles</a>: Heavy-duty, larger-capacity vessels engineered for bulk sample processing and high-velocity runs.</li>
<li><a href="https://mbpinc.net/consumables/centrifuge-tubes/large-volume-centrifuge-tubes" title="Large Volume Centrifuge Tubes">Large Volume Centrifuge Tubes</a>: Industrial-strength 250 mL and 500 mL tubes optimized for pilot-scale harvesting and bioprocessing.</li>
</ul>
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<h2>How to Choose Centrifuge Tubes</h2>
 Volume and Rotor Compatibility
Select a tube size that matches both your sample volume and centrifuge rotor. Microtubes ranging from 0.5&ndash;2 mL are commonly used in microcentrifuges and can typically handle speeds up to 20,000 &times; g. Midi tubes in the 5&ndash;10 mL range are suitable for intermediate sample volumes, while 15 mL and 50 mL conical tubes are commonly used in clinical, research, and preparative centrifuges.
Material: Polypropylene vs. Polystyrene
Polypropylene (PP) tubes offer excellent chemical resistance and can tolerate temperatures from &minus;80 &deg;C to +121 &deg;C. They are suitable for autoclaving and exposure to many laboratory solvents. Polystyrene (PS) tubes provide superior optical clarity, making it easier to visually inspect samples and liquid levels, but they have lower resistance to solvents and extreme temperatures.
Sterility and Contamination Control
Sterile centrifuge tubes are typically gamma- or E-beam-irradiated and certified free of RNase, DNase, and pyrogens. These tubes are recommended for RNA extraction, cell culture, and clinical applications where contamination must be minimized. Non-sterile tubes may still be RNase- and DNase-free and are often suitable for routine DNA work and general sample storage.
Cap Design
Attached screw caps help prevent cap mix-ups and sample contamination, especially in high-throughput laboratories. Separate caps can be quicker to open and may be preferred in workflows that require frequent access to samples. If tubes will be used with automated systems, cap dimensions should be verified for compatibility with liquid handling equipment.
Packaging Options
Racked tubes provide convenient organization and allow direct pipetting while the tubes remain in the rack. Bulk-bagged tubes offer a more economical option for laboratories that process large volumes of samples and already have tube storage systems in place.
<h2> Comparing Common Centrifuge Tube Types</h2>
 Microtubes (0.5&ndash;2 mL) are ideal for PCR preparation, microcentrifuge applications, and storage of small sample volumes. They can generally withstand centrifugal forces up to 20,000 &times; g.
Midi tubes (5&ndash;10 mL) are designed for intermediate sample volumes such as culture supernatants and can typically tolerate forces up to 16,000 &times; g.
Sterile 15 mL conical tubes are frequently used for cell pelleting, RNA extraction, and clinical sample processing, with typical ratings between 12,000 and 15,000 &times; g.
Sterile 50 mL conical tubes are commonly selected for larger-volume applications including tissue culture work, density gradient preparation, and large-scale sample processing.
Polystyrene conical tubes in 15 mL and 50 mL formats are often chosen when visual sample inspection is important and solvent exposure is minimal.
<h2> Specifications and Features</h2>
 Polypropylene centrifuge tubes from Globe Scientific and Nest Scientific are manufactured from USP Class VI virgin resin and do not contain plasticizers or processing additives. Sterile products are typically irradiated to achieve a sterility assurance level (SAL) of 10⁻⁶. Most 15 mL tubes feature graduation marks at 1 mL intervals, while 50 mL tubes are usually graduated every 5 mL. MBP offers both bagged and racked centrifuge tube formats, including 15 mL and 50 mL conical tubes as well as smaller microtube and midi tube options.
MBP supports procurement departments by accepting purchase orders and offering institutional pricing for qualified high-volume customers. <a href="https://mbpinc.net/contact-us">Contact the MBP team today</a> for a customized quote.

Centrifuge Tubes

Biologix® Centrifuge Tubes-15mL

Biologix Centrifuge Tubes 15ml and 50ml USA

CONICAL BOTTOM CENTRIFUGE TUBES WITH PLUG-SEAL SCREW CAPS

Biologix Conical Centrifuge Tubes-Plug Seal-15mL (Rack), Case of 500

Brand

Model

Material

Caps

Sterile

BioFactory Accessories

<h2 dir="ltr"> What are Accessories for NEST BioFactory&trade; Systems?</h2>
 NEST BioFactory&trade; accessories are the replacement caps, silicone tubing, vent filters, overcaps, and pre-assembled closed-system cap assemblies used to configure BioFactory units for closed aseptic liquid transfer, gas exchange management, and multi-unit serial connections in cGMP and research-scale bioprocess workflows. The accessory set enables the BioFactory narrow-mouth cap to function as a closed-system liquid transfer port &mdash; media, wash buffer, trypsin, and cell harvest supernatant are transferred in and out through the silicone tubing connection without opening the vessel. Accessories for the BioFactory are required when operating the BioFactory as a closed system; for simple open-pour workflows using wide-mouth caps, standard vent and plug seal caps are the only accessories needed.
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<h2 dir="ltr">What you will find:</h2>
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BioFactory media transfer caps
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Sterile tubing and connector sets
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Fluid transfer adapters for cell culture vessels
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BioFactory bottle caps and closures
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Sterile quick-connect systems
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Liquid handling accessories
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Vessel handling and support tools
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Closed-system connectors for aseptic processing
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<h2 dir="ltr"> Key BioFactory Accessory Categories</h2>
 BioFactory Cap with Silicone Tube (CPC or Luer Connector) The BioFactory cap with silicone tube is the primary closed-transfer accessory: an adaptor cap that fits the narrow-mouth port of the BioFactory unit, pre-assembled with 80 cm of silicone tubing and a terminal connector &mdash; either a male CPC (clamped pressure connector / quick-connect) or a standard Luer lock &mdash; for coupling to peristaltic pumps, other BioFactory units, centrifuge tubes, or PETG media bottle assemblies. Two tubing I.D. &times; O.D. configurations are available: 1/4" I.D. &times; 3/8" O.D. and 3/8" I.D. &times; 5/8" O.D., covering standard peristaltic pump head bore sizes. The female sealing cap included with each assembly caps the connector between uses, maintaining sterility. Overcaps: Vented and Solid Overcaps are secondary dust and contamination barriers placed directly on top of the BioFactory adaptor caps during culture incubation. The vented overcap contains a 0.22 &micro;m hydrophobic breathable membrane, allowing gas exchange through the cap stack while blocking particles and microbial contamination &mdash; used during active shaker or orbital incubation when the unit's primary cap is an adaptor cap rather than a vented cap. The solid overcap provides an additional dust and contamination seal with no gas exchange &mdash; used for short-term storage or transport outside the incubator. SPT-50 Silicone Hose SPT-50 silicone hose (3/8" I.D. &times; 5/8" O.D., 50 inches / 15 meters) is the bulk tubing used to connect multiple BioFactory units in series, connect BioFactory ports to peristaltic pump heads, or extend the reach of the transfer cap assembly. SPT-50 tubing is manufactured from silicone, is individually wrapped and sterile, and passes dissolution testing per BPOG (BioPhorum Operations Group) criteria per NEST product documentation, supporting its use in biopharmaceutical production environments. Premium Accessory Package NEST offers a BioFactory Accessory Premium Package that includes 2 different adaptor caps, 1 hose clamp, 1 adaptor connector, 1 vent filter (50 mm), 1 additional hose clamp, and 15 m of SPT-50 silicone hose &mdash; all individually wrapped and sterile in a single kit. This package provides all components needed to set up a closed-system BioFactory media management workflow from a single kit, reducing the number of individual part orders required. Vent Filters for Gas Exchange Management For BioFactory units using adaptor caps rather than standard vented caps, 50 mm inline vent filters (0.22 &micro;m hydrophobic PTFE membrane) are installed on the air inlet/outlet tubing line to maintain sterile gas exchange during media addition, harvest, and incubation. The vent filter is rated for high flow rates without creating excessive back-pressure that would resist liquid movement through the system. Compatibility: Narrow-Mouth BioFactory Units Only All BioFactory accessory caps and tubing assemblies are designed exclusively for the narrow-mouth BioFactory configuration. Wide-mouth BioFactory units use standard wide-mouth vent and plug seal caps only; they are not compatible with accessory cap assemblies. Confirm that your BioFactory units have narrow-mouth ports before ordering the accessory cap set. 
<h2 dir="ltr"> Specifications Context</h2>
 NEST BioFactory&trade; accessory silicone tubing and cap assemblies are manufactured from USP Class VI silicone (TPE/silicone) and polycarbonate or PP cap bodies, individually wrapped and sterile. All components have passed dissolution testing per BPOG dissolution test criteria conducted by a certified third-party laboratory per NEST Scientific documentation. The standard Luer head connections conform to ISO 594 / GB/T 1962 for reliable compatibility with standard laboratory fittings. Vent filters use a 0.22 &micro;m hydrophobic PTFE membrane; overcaps use a 0.22 &micro;m hydrophobic membrane. NEST BioFactory accessories are carried by MBP alongside BioFactory units. 
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Need the right BioFactory setup? <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">Contact MBP today</a> for technical assistance.

Biofactory System Accessories

CPC Connector(Inner Dia #3/8 ) for Hose to Hose Connecting, Individually Wrapped, Sterile, 1/pk, 5/cs

747001 by NEST Scientific — straight hose-to-hose CPC connector, 3/8&quot; inner diameter, individually wrapped, sterile. For single-use bioprocess tubing assemblies. 1/pk, 5/cs.

Manufacturer

CPC Sealing Plug, Individually Wrapped, Sterile, 1/pk, 1/cs

747011 by NEST Scientific is a sterile, individually wrapped CPC sealing plug for NEST BioFactory cell culture vessels, sized for #3/8 inch ports (9.5 mm ID / 15.9 mm OD). Manufactured in ISO 8 clean rooms, USP Class VI materials, ISO 9001/13485 certified. 10 pcs/case. Available through MBP, a registered vendor to Howard Hughes Medical Institute, Vanderbilt University, MD Anderson Cancer Center, Eurofins, and many other institutes across the USA.

<h2 dir="ltr">What Are Specialized Cloning Vectors &amp; Viral Tools?</h2>
 Standard lentiviral and retroviral expression vectors meet the needs of most overexpression and knockdown workflows, but many cell biology and translational research questions demand purpose-engineered constructs with specialised functions &mdash; subcellular localisation, multi-gene co-expression, or conditional activation. Select the format best suited to your experimental requirements.
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<h2 dir="ltr">What you will find:</h2>
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<a href="https://mbpinc.net/reagents/dna/cloning-services-products/specialized-cloning-vectors/-virus/organelle-labeling-viruses">Organelle Labeling Viruses: </a>for live-cell visualization and functional pathway analysis of cellular structures in mammalian systems
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Targeted fluorescent labeling of specific cellular structures using viral delivery.
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Stable expression of organelle-specific markers for long-term live-cell imaging.
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Compatible with fluorescence microscopy for dynamic cellular imaging applications.
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<li data-section-id="8k7pm2" data-start="506" data-end="603" data-is-last-node="">Suitable for studying organelle organization, transport, and cellular function in living cells.</li>
</ul>
<h2 dir="ltr"> How to Choose Specialized Cloning Vectors</h2>
 Subcellular Targeting Needs Organelle-targeted fluorescent labeling lentiviral particles deliver fluorescent protein constructs targeting mitochondria, endoplasmic reticulum, nucleus, Golgi, lysosome, peroxisome, plasma membrane, autophagosome, and cytoskeleton &mdash; providing a stable alternative to chemical dyes for live-cell imaging. Multi-Gene Co-Expression Bicistronic vectors using IRES or 2A self-cleaving peptide sequences enable co-expression of two genes (e.g., a gene of interest and a fluorescent marker) from a single transcript or vector. Conditional Expression Requirements Conditional DIO/FLEX vectors restrict transgene expression to Cre-expressing cells, essential for circuit-specific neuroscience research and in vivo conditional gene expression studies. Temporal Control Needs Inducible constructs (Tet-On/Tet-Off systems) provide doxycycline-regulated transgene activation for experiments requiring temporal control over expression timing. Delivery Format Most specialised constructs are available as lentiviral particles for stable, long-term expression in both dividing and non-dividing cell types, including primary cells and in vivo models. 
<h2 dir="ltr"> Specifications Context</h2>
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Traditional subcellular organelle imaging relies on chemical dyes (e.g., MitoTracker, LysoTracker, ER-Tracker) or antibody-based immunofluorescence in fixed cells; however, chemical dyes are transient and may exhibit cytotoxicity at working concentrations, while antibody-based methods are limited to endpoint imaging. Viral organelle-targeted fluorescent expression systems enable stable, genetically encoded labeling for long-term live-cell imaging and dynamic subcellular tracking. These constructs are supplied in plasmid DNA and pre-packaged viral formats and support applications including organelle dynamics, trafficking studies, and multicolor imaging workflows. Specialized cloning vectors and viral tools are sourced from established manufacturers, including Applied Biological Materials (ABM), and product availability reflects MBP&rsquo;s catalogue as of mid-2026.
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<a href="https://mbpinc.net/contact-us" style="color: #236fa1;">Contact the MBP team </a>today and get specialized cloning vectors for your lab.