Brands

Centrifuge Tubes

<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.

<h2 data-section-id="132783j" data-start="0" data-end="34">What Are Microcentrifuge Tubes?</h2>
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Microcentrifuge tubes are small-volume polypropylene or low-binding polypropylene vessels available in 0.5 mL, 1.5 mL, and 2.0 mL capacities. They are designed for use in fixed-angle and variable-speed microcentrifuges and are commonly used for sample preparation, DNA and RNA isolation, protein purification, enzyme reaction setup, and cryogenic sample storage. Depending on the application, these tubes are available with either hinged snap caps or threaded screw caps that help protect samples from leakage, contamination, and evaporation during centrifugation and storage.
Microcentrifuge tubes are essential consumables in molecular biology, biochemistry, clinical chemistry, proteomics, and genomics laboratories. Among all formats, the 1.5 mL snap-cap tube remains the most widely used microcentrifuge tube in routine molecular biology workflows.
Use 1.5 mL snap-cap polypropylene tubes for general molecular biology applications, 2.0 mL tubes for bead-based extraction and precipitation workflows, screw-cap tubes for volatile or valuable samples, and low-binding tubes for dilute proteins or nucleic acids.
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<h2 dir="ltr">What you will find:</h2>
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0.5mL, 0.6mL, 1.5mL, 2.0mL, 5.0mL (for small-volume to high-volume applications)
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Tubes only: Snap-cap, one-hand use
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O-ring caps: Leak-proof, secure seal
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Sterile: RNase/DNase-free for sensitive work
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Non-sterile: Cost-effective for general use
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<h2 data-section-id="1yp6iwa" data-start="1166" data-end="1204">How to Choose Microcentrifuge Tubes</h2>
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Volume: 0.5 mL / 1.5 mL / 2.0 mL
&nbsp;0.5 mL tubes minimize dead volume for concentrated or precious samples and fit compact block heaters. 1.5 mL is the universal format compatible with virtually all microcentrifuge rotors, heating blocks, and automated liquid handlers. 2.0 mL provides extra headspace for vortex mixing and bead-based extraction protocols; the slightly wider diameter is also compatible with most 1.5 mL rotor slots.
Cap Style: Snap Cap vs Screw Cap
Snap-cap microcentrifuge tubes feature hinged lids that allow quick one-handed operation and are preferred for high-throughput laboratory workflows involving frequent pipetting.
Screw-cap tubes equipped with O-rings or sealing rings provide a hermetic seal capable of withstanding centrifugal forces up to 20,000 &times; g. These tubes are recommended for volatile reagents, repeated freeze-thaw cycles, and long-term storage at ultra-low temperatures. Laboratories requiring enhanced sample security often select screw-cap formats for valuable or irreplaceable specimens.
Standard vs Low-Binding Polypropylene
Standard polypropylene microcentrifuge tubes are suitable for most routine laboratory applications. Low-binding polypropylene tubes are designed to reduce sample adsorption to tube walls and are particularly beneficial when working with dilute proteins, low-concentration nucleic acids, or single-cell samples where maximizing recovery is critical.
Bottom Geometry: Conical vs Self-Standing
Conical-bottom tubes concentrate pellets at the tip of the tube, improving sample recovery and simplifying resuspension after centrifugation.
Self-standing tubes feature a flat base that allows them to remain upright without a rack, making them convenient for sample handling, labeling, and storage. While they offer greater bench-top convenience, pellets may form slightly off-center compared with traditional conical-bottom designs.
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<h2 data-section-id="11skgd4" data-start="3407" data-end="3446">Compare Microcentrifuge Tube Formats</h2>
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Snap-cap conical polypropylene microcentrifuge tubes are available in 0.5 mL, 1.5 mL, and 2.0 mL capacities. Rated to approximately 16,000 &times; g, they are the standard choice for molecular biology, PCR preparation, nucleic acid extraction, and enzyme reaction workflows.
Screw-cap polypropylene tubes with O-rings are offered in 1.5 mL and 2.0 mL formats with either conical or flat-bottom designs. These tubes can withstand centrifugal forces up to 20,000 &times; g and are commonly used for volatile samples, cryogenic storage, and biobanking applications.
Self-standing screw-cap microcentrifuge tubes are available in 0.5 mL, 1.5 mL, and 2.0 mL capacities. Featuring sealing rings and flat-bottom construction, they provide stable rack-free storage and are often used in color-coded sample management systems. These tubes are typically rated up to 20,000 &times; g.
Amber polypropylene microcentrifuge tubes are available with either snap caps or screw caps in 1.5 mL and 2.0 mL sizes. Designed for light-sensitive compounds, they help protect samples from light exposure while supporting centrifugation up to approximately 16,000 &times; g.
Dispenser-box snap-cap microcentrifuge tubes are commonly available in 1.5 mL and 2.0 mL formats and are packaged for convenient bench-top dispensing. They are ideal for high-throughput laboratories that process large numbers of samples and require efficient access to consumables.
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<h2 data-section-id="1jl751w" data-start="4881" data-end="4906">Specifications Context</h2>
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Globe Scientific microcentrifuge tubes are manufactured from USP Class VI virgin polypropylene and are certified RNase-free, DNase-free, and non-pyrogenic by lot under ISO 9001:2015 quality management standards. Nest Scientific microcentrifuge tubes are similarly manufactured to USP Class VI specifications and are available in self-standing formats with six cap color options for simplified sample organization.
Standard packaging configurations include 500 tubes per case for snap-cap formats and 500 tubes per case supplied in 50-tube packs for screw-cap variants. As of 2026, MBP stocks both dispenser-box snap-cap tubes and screw-cap microcentrifuge tube formats, with bulk purchasing options available for high-volume laboratories.
Achieve consistent results with secure, medical-grade centrifugation vessels. <a href="https://mbpinc.net/contact-us" title="Contact Molecular Biology Products Inc." style="color: #236fa1; text-decoration: underline;">Contact Molecular Biology Products Inc.</a> for a quote to upgrade your workflow.

Microcentrifuge Tubes

<h2 data-section-id="155qizo" data-start="0" data-end="33">What Are All Centrifuge Tubes?</h2>
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The All Centrifuge Tubes collection includes the complete range of tube sizes commonly used in research, clinical, and laboratory environments. These tubes range from small 0.5 mL and 1.5&ndash;2 mL microtubes used in microcentrifuge applications to 5 mL and 10 mL midi tubes for intermediate sample volumes, as well as 15 mL and 50 mL conical tubes designed for cell culture, density gradient preparation, and larger-volume sample processing. They are available in polypropylene (PP) for enhanced chemical resistance and temperature tolerance or polystyrene (PS) for improved optical clarity.
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What you will find:
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microcentrifuge-tubes" title="Microcentrifuge Tubes">Microcentrifuge Tubes</a> &ndash; Precision-engineered for small-volume sample preparation.
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/screw-cap-tubes" title="Screw Cap Tubes">Screw Cap Tubes</a> &ndash; Secure, leak-proof closures for long-term storage and transport.
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/15ml-and-50ml-centrifuge-tubes" title="15ml &amp; 50ml Centrifuge Tubes">15ml &amp; 50ml Centrifuge Tubes</a> &ndash; Standard conical bottom tubes for large-volume processing.
</li>
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/midicentrifuge-tubes-5ml-and-10ml" title="Midicentrifuge Tubes (5ml &amp; 10ml)">Midicentrifuge Tubes (5ml &amp; 10ml)</a> &ndash; The perfect bridge for intermediate sample sizes.
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<a href="https://mbpinc.net/consumables/centrifuge-tubes/all-centrifuge-tubes/microtubes-box" title="Microtubes Box">Microtubes Box</a> &ndash; Durable storage racks for organized sample management and protection.
</li>
</ul>
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<h2 data-section-id="1f93yys" data-start="914" data-end="963">How to Choose From All Centrifuge Tube Formats</h2>
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Volume and Rotor Compatibility
Selecting the correct tube size is essential for safe and efficient centrifugation. Microtubes ranging from 0.5&ndash;2 mL are designed for microcentrifuges, while 5&ndash;10 mL midi tubes fit compatible benchtop centrifuge rotors. Larger 15 mL and 50 mL conical tubes are commonly used in clinical and research centrifuges. Always verify rotor compatibility before introducing a new tube format into your workflow.
Sterility Requirements
For sensitive applications such as RNA extraction, cell culture, and clinical diagnostics, sterile tubes certified free of RNase, DNase, and pyrogens are recommended. Non-sterile tubes can provide a cost-effective solution for routine DNA analysis, protein assays, and general sample storage where sterility is not critical.
Material Selection
Polypropylene tubes offer excellent durability, can be autoclaved at 121 &deg;C, and resist many laboratory chemicals and solvents. Polystyrene tubes provide superior transparency, making it easier to monitor liquid levels and sample contents, although they are less resistant to heat and solvents.
Packaging and Inventory Planning
Microtubes are commonly available in pack sizes ranging from 500 to 1,000 units, while 15 mL and 50 mL conical tubes are often supplied in cases of 500. Laboratories with consistent usage may benefit from establishing recurring purchase orders to ensure uninterrupted supply.
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<h2 data-section-id="urfo3f" data-start="2395" data-end="2433">Compare Centrifuge Tube Size Groups</h2>
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Microtubes (0.5&ndash;2 mL) are primarily used for PCR preparation, microcentrifuge applications, and storage of small sample volumes. These are typically manufactured from polypropylene and are available in pack sizes of 500&ndash;1,000 units.
Midi tubes (5&ndash;10 mL) support intermediate-volume centrifugation and supernatant collection. They are commonly made from polypropylene and supplied in packs ranging from 100&ndash;500 units.
15 mL conical tubes are widely used for cell pelleting, RNA isolation, and clinical sample processing. They are available in both polypropylene and polystyrene formats and are generally packaged in cases of 500.
50 mL conical tubes are designed for larger-volume workflows, including tissue culture, density gradient preparation, and sample processing. Like 15 mL tubes, they are available in polypropylene and polystyrene and are commonly sold in cases of 500.
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<h2 data-section-id="1ezckh3" data-start="3318" data-end="3348">Specifications and Features</h2>
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Globe Scientific and Nest Scientific centrifuge tubes are manufactured from USP Class VI virgin polypropylene or polystyrene resin and are certified free from detectable RNase, DNase, and pyrogens. Sterile products are irradiated using gamma or E-beam methods to achieve a sterility assurance level (SAL) of 10⁻⁶. MBP offers both racked and bagged formats for 15 mL and 50 mL conical tubes, along with dispenser-box options for selected microtube product lines that support efficient use in high-throughput laboratory environments.
For procurement teams, MBP accepts purchase orders and offers institutional pricing for bulk and high-volume purchases. <a href="https://mbpinc.net/contact-ushttps://mbpinc.net/contact-us" title="Contact the MBP team" style="color: #236fa1;">Contact the MBP team</a> today to learn more

All Centrifuge Tubes

111671-Group-Tubes, Caps & Racks Catalog

Screwcaps with O-Ring for Microcentrifuge Tubes

111671B by Globe Scientific are blue polypropylene screwcaps with a clear nitrile O-ring for all Globe screw-top microcentrifuge tubes. The O-ring delivers a leakproof seal for sample integrity during freezing, centrifugation, and transport. Autoclavable; supplied in bags of 1000. Multiple colors available across the 111671 line.

Manufacture

Screw Cap for Microtube, with O-Ring, Clear, BAG/1000

Screw Cap for Microtube, with O-Ring, White, BAG/1000

Screw Cap for Microtube, with O-Ring, Blue, BAG/1000

Screw Cap for Microtube, with O-Ring, Green, BAG/1000

Screw Cap for Microtube, with O-Ring, Red, BAG/1000

Screw Cap for Microtube, with O-Ring, Yellow, BAG/1000

111672-Group-Tubes, Caps & Racks Catalog

Screwcaps without O-Ring for Microcentrifuge Tubes

111672B by Globe Scientific are blue polypropylene screwcaps without an O-ring, designed for all Globe Scientific screw-top microcentrifuge tubes. Provides a reliable threaded closure for routine bench-top storage and standard centrifugation. Autoclavable; bag of 1000. Multiple colors available in the 111672 line.

Screw Cap for Microtube, No O-Ring, Clear, BAG/1000

Screw Cap for Microtube, No O-Ring, White, BAG/1000

Screw Cap for Microtube, No O-Ring, Blue, BAG/1000

Screw Cap for Microtube, No O-Ring, Green, BAG/1000

Screw Cap for Microtube, No O-Ring, Red, BAG/1000

Screw Cap for Microtube, No O-Ring, Yellow, BAG/1000

Erlenmeyer Flask Accessories

DataSheet

Seal Caps & Vent Caps for Erlenmeyer Flasks

781925 by NEST Scientific includes both seal caps and vent caps for Erlenmeyer flasks used in suspended cell culture, medium preparation, and storage. Vent caps feature a 0.22 µm hydrophobic PTFE membrane for sterile gas exchange during orbital shaker culture. Both types are USP Grade VI polypropylene, E-beam sterilized to SAL 10⁻⁶, cGMP 21 CFR Part 820 compliant.

Manufacturer

Seal Cap for 125mL Erlenmeyer Flasks, 1/pk, 25/cs

Vent Cap for 125mL Erlenmeyer Flasks, 1/pk, 25/cs

Seal Cap for 250mL Erlenmeyer Flasks, 1/pk, 25/cs

Vent Cap for 250mL Erlenmeyer Flasks, 1/pk, 25/cs

Seal Cap for 500&1000mL Erlenmeyer Flasks, 1/pk, 25/cs

Vent Cap for 500&1000 mL Erlenmeyer Flasks, 1/pk, 25/cs

Seal Cap for 2L Erlenmeyer Flasks, 1/pk, 20/cs

Vent Cap for 2L Erlenmeyer Flasks, 1/pk, 20/cs

Seal Cap for 3L Erlenmeyer Flasks/ 2&3 L High Efficient Erlenmeyer Flasks, 1/pk, 20/cs

Vent Cap for 3L Erlenmeyer Flasks/ 2&3 L High Efficient Erlenmeyer Flasks, 1/pk, 20/cs

Seal Cap for 3L Wide-mouth/5L Efficient Erlenmeyer Flasks, 1/pk, 20/cs

Vent Cap for 3L Wide-mouth/5L Efficient Erlenmeyer Flasks, 1/pk, 20/cs

PCR & qPCR Film

SealPlate® ColorTab™

SealPlate® ColorTab™ (SP-IDA-10) by MBP adds color-coded plate identification to standard SealPlate seals. Each film has a colored end-tab with a colored dot and white writing area. Available in Assorted (SP-IDA-10, 50/case) and individual Blue, Green, Lavender, Orange, or Red colors (SP-IDB/G/L/O/R-100, 100/case each). Ships ambient.

Application

Temperature Range

SealPlate® ColorTab™, Assorted, 50/Cs

SealPlate® ColorTab™, Blue, 100/Cs

SealPlate® ColorTab™, Green, 100/Cs

SealPlate® ColorTab™, Lavender, 100/Cs

SealPlate® ColorTab™, Orange, 100/Cs

SealPlate® ColorTab™, Red, 100/Cs

SealPlate® MiniStrips™, 4 Strips per Sheet, 2X8 Rows per Strip, Sterile

SealPlate® MiniStrips™ (SPS-2X8-50) by MBP are sterile adhesive plate sealing strips for partial-plate sealing: 4 strips per sheet, each covering 2&times;8 rows (16 wells). Ideal for assays using partial microplates or requiring selective row sealing. Ships ambient; store at room temperature.

SealPlate® RollMate™, Dispenser +1 Roll of SealPlate Film, 500 Pre-Scored Sheets

SealPlate® RollMate™ (SP2-RL-500) by MBP includes a dispenser and 1 roll of pre-scored SealPlate film (500 sheets). Pre-scored roll film is a more economical and efficient alternative to single sheeted film for rapidly sealing microplates or racked test tubes. Single SKU. Ships ambient.

<h2 dir="ltr">What are cell and tissue culture sealing films?</h2>
 Cell and tissue culture sealing films are breathable, gas-permeable membranes applied to multiwell culture plates to maintain sterility and limit evaporation while letting oxygen and carbon dioxide pass through to the cells. Unlike airtight polyester or foil seals, the porous membrane supports aerobic respiration, so cultures stay viable through multi-day incubations, shaking, and even plate inversion. They use a medical-grade, non-cytotoxic adhesive and suit polystyrene and polypropylene culture plates. Buy from this category for live-cell, tissue, and microbial culture, where gas exchange and sterility matter more than an airtight seal.
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<h2 dir="ltr">What you will find:</h2>
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Gas-permeable sealing films for optimal cell growth conditions
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Adhesive sealing films for microplates and culture plates
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Optical clear films for microscopy and imaging applications
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Pierceable films for repeated sample access
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Sterile sealing films for contamination-sensitive workflows
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Heat-resistant films for incubation and thermal applications
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<h2 dir="ltr"> How to choose cell and tissue culture films</h2>
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Confirm gas permeability Choose a hydrophobic, gas-permeable membrane with a defined pore size &mdash; commonly around 10&ndash;50 &micro;m &mdash; so O₂ and CO₂ exchange freely while liquid and contaminants stay out.
Verify the adhesive is non-cytotoxic For live cells, select a medical-grade, non-cytotoxic adhesive; the standard pressure-sensitive adhesives used on storage films are not validated for cell contact.
Match the plate and culture format Confirm the film fits 96-, 384-, or deep-well culture plates and supports shaking or inversion if your protocol requires it; deep-well cultures place more demand on the seal.
Decide on sterility and imaging Choose sterile film for cell work; if you image during incubation, select a film with optically clear windows so plates can be read without unsealing.
<h2 dir="ltr">&nbsp;</h2>
<h2 dir="ltr">Specifications context</h2>
 Culture films are defined by gas permeability, pore size, adhesive biocompatibility, and sterility. A porous membrane with 10&ndash;50 &micro;m pores and high moisture-vapor transmission supports aerobic metabolism while limiting evaporation. A medical-grade, non-cytotoxic adhesive keeps cells viable, and sterile packaging prevents contamination of primary cultures. Some plate-reader manufacturers recommend a breathable moisture-barrier seal to prevent moisture release into the instrument. Because the membrane is gas-permeable rather than airtight, a breathable culture film is removed and replaced with an airtight foil or polyester seal before any subsequent freezing or chemical-processing step, where evaporation control and a full barrier &mdash; not gas exchange &mdash; becomes the priority. These films ship sterile in packs of 100 in a mid-price tier.&nbsp; 
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For product details, compatibility guidance, or bulk requirements, <a href="https://mbpinc.net/contact-us">the MBP team </a>can help you select the right sealing film for your specific culture system.

Cell & Tissue Culture Film

Product Literature

SealPlate® SealMate™ Starter Kit

SealPlate® SealMate™ Starter Kit (SM-KIT-SP) by MBP includes a re-usable SealMate dispenser and 2 rolls of perforated SealPlate film for fast and efficient microplate sealing. Available non-sterile (SM-KIT-SP) or sterile (SM-KIT-SPS). Ships ambient.

SealPlate® SealMate™ Starter Kit, SealMate Dispenser + 2 Rolls of SealPlate® Film, 100 Sheets/Roll

SealPlate® SealMate™ Starter Kit, SealMate Dispenser + 2 Rolls of SealPlate® Film, 100 Sheets/Roll, Sterile

SealPlate® for General laboratory use

SealPlate® (100-SEAL-PLT) by MBP is a general-purpose adhesive plate sealing film that minimizes evaporation, prevents contamination, and eliminates the edge effect of plate lids. Rated &minus;40&deg;C to +120&deg;C. Non-sterile (100-SEAL-PLT) or sterile (STR-SEAL-PLT), 100 films/pack each. Ships ambient.

SealPlate®, General laboratory use, short-term storage, incubation and ELISA, -40°C to +120°C, 100 Sealing Films/Pack

SealPlate®, Sterile, General laboratory use, short-term storage, incubation and ELISA,Temperature Range: -40°C to +120°C, 100 Sealing Films/Pack

Universal Centrifuge Accessories

<h2>What Are Universal Centrifuge Accessories?</h2>
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Universal centrifuge accessories are the interchangeable components that determine the range of applications a universal centrifuge can perform. These include swing-out rotor buckets for blood tubes, conical tubes, microplates, and large bottles; fixed-angle rotors for high-speed pelleting; hematocrit and cytospin rotors; tube adapters; and aerosol-tight bio-containment lids. Selecting the appropriate accessories allows a single centrifuge to support multiple laboratory workflows efficiently and safely.
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<h2 dir="ltr">What you will find:</h2>
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Tube adapters and inserts for compatibility with multi-volume samples&nbsp;
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Fixed-angle and swing-out rotors for varied centrifugation applications
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Lids and sealed buckets for safe and reliable operations
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PCR adapters and microplate carriers for high-throughput workflows
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Centrifuge tubes, holders, and supporting aids for efficient and complete setups
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<h2>How to Choose Universal Centrifuge Accessories</h2>
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Swing-Out Bucket Selection by Application
Choose swing-out buckets according to the sample formats used in your laboratory. Blood tube buckets support routine clinical applications, conical tube buckets are suitable for cell culture and molecular biology, microplate carriers enable high-throughput workflows, and large-bottle carriers accommodate large-volume sample processing.
Fixed-Angle Rotors
Fixed-angle rotors provide higher centrifugal forces for microtube, PCR tube, and small-volume sample processing. Ensure that both the rotor and centrifuge motor specifications support the required operating speeds and sample formats.
Cytospin Clip Rotors
Cytospin rotors are designed for preparing microscope slides from low-cellularity samples such as body fluids. Verify compatibility with the required funnel sizes and use bio-containment features when processing potentially infectious materials.
Bio-Containment Lids
Aerosol-tight lids help contain biological samples during centrifugation and support safe laboratory practices. Regular inspection of sealing components and O-rings ensures reliable containment and long-term performance.
Reducing Adapter Inserts
Adapter inserts allow smaller tubes to fit securely within larger bucket positions. Using properly matched adapters improves balance, prevents movement during operation, and helps maintain consistent centrifugation results.
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<h2>Specifications Context</h2>
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Modern universal centrifuge systems support interchangeable accessory configurations that enable rapid transitions between clinical, research, cell culture, and cytology workflows. Swing-out buckets, fixed-angle rotors, and microplate carriers provide flexibility while maintaining compatibility with a broad range of vessel formats.
Routine inspection and maintenance of accessories, including adapters, lids, and sealing components, help ensure safe operation and extend equipment lifespan. Advances in bio-containment systems and modular rotor designs continue to improve laboratory efficiency and versatility.
Time to upgrade your universal centrifuge accessories. <a href="https://mbpinc.net/contact-us">Contact the expert team </a>of Molecular Biology Products Inc. (MBP) and the find perfect match today.

Sealed buckets for Z326-100H-AC, 2/pk.

The Z326-100H-BUK by Hermle is a pack of two 100 mL hermetically sealed centrifuge buckets for the Z326-100H-AC swing-out rotor on Hermle Z306 and Z326 Universal Centrifuges. Sealed buckets are required for centrifuging infectious, biohazardous, or aerosolizable samples under biological safety containment. The two-pack provides a full replacement bucket set for both rotor positions. Order via mbpinc.net or contact MBP for institutional pricing.

Round Well Deep Well Plates

<h2 data-section-id="8npnrj" data-start="0" data-end="40">What are Round Well Deep Well Plates?</h2>
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Round well deep well plates are polypropylene microplates manufactured to ANSI/SLAS (SBS) footprint standards, featuring cylindrical wells that provide greater sample volumes than standard PCR or assay plates. Typical formats include 96-well plates with capacities of 1.2 mL, 2.0 mL, or 2.2 mL per well, designed for automated sample processing, nucleic acid extraction, microbial culture, compound storage, and high-throughput laboratory workflows.
The round well geometry promotes uniform mixing, consistent liquid movement during shaking, and efficient magnetic bead collection during automated extraction procedures. Unlike square well plates, which maximize storage volume, round well plates are preferred when sample recovery, mixing performance, and magnetic bead handling are critical.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
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96-round well storage plates
</li>
<li dir="ltr" aria-level="1">
1.2ml deep well plates
</li>
<li dir="ltr" aria-level="1">
2.0ml round well plates
</li>
<li dir="ltr" aria-level="1">
Sterile deep well microplates
</li>
<li dir="ltr" aria-level="1">
DNase and RNase-free plates
</li>
<li dir="ltr" aria-level="1">
U-bottom deep well plates
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<li dir="ltr" aria-level="1">
Polypropylene storage plates
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<li dir="ltr" aria-level="1">
Automation-compatible round well plates
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Silicone sealing mats
</li>
</ul>
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<h2 data-section-id="m2xmka" data-start="1392" data-end="1436">How to Choose Round Well Deep Well Plates</h2>
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Well Volume
The 1.2 mL round well plate is specified for smaller-input nucleic acid extraction protocols (blood, plasma, swab) and fits automated deck formats with restricted Z-height clearance. The 2.0 mL round well format accommodates larger sample input volumes for high-yield extractions and is the standard format for Nest Scientific deep well plates used in nucleic acid processing. Confirm working volume versus total well volume in the product specification &mdash; a 2.0 mL plate typically has a total volume of 2,200&ndash;2,400 &micro;L.
Bottom Geometry
U-bottom (hemispherical) round wells are standard for sample storage, bacterial and cell culture, and general liquid handling where complete aspiration is not required. V-bottom (conical) round wells concentrate liquid and pellet to the lowest point for complete aspiration and enhanced pellet recovery, preferred in enzymatic assay and precipitation protocols. Flat-bottom round well plates are used when an optical flat surface is needed for absorbance-based assay measurement.
Sterility Requirements
Non-sterile round well deep well plates manufactured in ISO 8 cleanrooms satisfy most nucleic acid extraction and sample processing workflows. Sterile options (gamma-irradiated, SAL 10⁻⁶) are required for cell culture, bacterial culture, and RNA extraction from live cells. Autoclavable polypropylene formats provide a cost-effective reusable sterile option for labs with autoclave access.
Centrifugation and Sealing
Standard round well deep well plates are rated 4,000&ndash;6,000 &times; g. Raised well rims ensure consistent sealing with adhesive films, heat-seal foils, and pre-slit silicone mats. Nest Scientific 96-well round well silicone sealing mats (pre-slit, 7 mm diameter) are compatible with 0.35&ndash;1.35 mL round well plates.
Automation Compatibility
Specify virgin polypropylene, lot-certified DNase-free, RNase-free, DNA-free, and PCR inhibitor-free for nucleic acid extraction. Nest Scientific deep well plates use USP Class VI polypropylene material with high chemical stability for demanding extraction workflows.
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<h2 data-section-id="1jl751w" data-start="4818" data-end="4843">Specifications Context</h2>
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Round well deep well plates are manufactured from high-purity polypropylene and are commonly rated for temperatures from &minus;80&deg;C to +121&deg;C, supporting freezer storage and autoclave sterilization. Premium plates are produced from USP Class VI resins and tested for DNase, RNase, DNA, and PCR inhibitor contamination.
The 96-well 2.0 mL U-bottom round well plate remains one of the most widely used formats for automated nucleic acid extraction, biobanking, bacterial culture, and sample preparation workflows due to its balance of volume capacity, automation compatibility, and reliable magnetic bead performance.
Browse our range and <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">request a quote from the MBP team</a> to find the right fit for your lab.

Sealing Mat for 96-well Deep Well Plate with Round and square Wells.

SM-2ML-RD is a research-grade silicone sealing mat for 96-well deep well plates with round and square wells. Autoclavable, pierceable, self-sealing after puncture, and certified RNase-free, DNase-free, human-DNA free, and non-pyrogenic. Suitable for sample storage at -80°C through 4°C and repeated-access liquid handling workflows.

Packaging

Well Style

Round Sealing mat, for 96-well Deep Well Plates, Round wells, Silicone. Fits DWP-20-RDU, DWP-11-RDU. Packaging: 10/Pk, 5 Pks/Cs

Square Sealing mat, for 96-well Deep Well Plates, Square wells, Silicone. Fits DWP-20-SQV, DWP-20-SQU.Packaging: 10/Pk, 5 Pks/Cs

Round Sealing mat, for 96-well Deep Well Plates, Round wells, Silicone. Fits Greiner 96-well Masterblock.Packaging: 10/Pk, 5 Pks/Cs

<h2>What are ELISA kits for methylation in this category?</h2>
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ELISA kits for DNA and RNA methylation in this category are antibody-based assays that quantify the global level of a specific epigenetic mark, most commonly 5-methylcytosine in genomic DNA, 5-hydroxymethylcytosine in genomic DNA, or N6-methyladenosine in RNA, using a plate-based immunoassay format without requiring bisulfite conversion or sequencing. Denatured, single-stranded DNA or RNA from a sample is coated on a plate well, and a mark-specific primary antibody followed by an HRP-conjugated secondary antibody generates a colorimetric signal proportional to the level of the target modification.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
<li dir="ltr" role="presentation">5-mC DNA ELISA kits for quantitative analysis of DNA methylation&nbsp;</li>
<li dir="ltr" role="presentation">DNA controls for validation and calibration of the assay to ensure experimental&nbsp; reproducibility and accuracy&nbsp;</li>
<li dir="ltr" role="presentation">Secondary antibody reagents for specific signal generation and detection in ELISA assays</li>
<li dir="ltr" role="presentation">Coating buffers for consistent assay performance and optimized plate preparation&nbsp;</li>
</ul>
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<h2>How to choose methylation ELISA kits and reagents</h2>
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Match your kit to the specific epigenetic mark you're quantifying
Different kits use antibodies against specific modifications: 5-methylcytosine ELISA kits quantify global DNA methylation, 5-hmC ELISA kits quantify global hydroxymethylation, and m6A ELISA kits quantify RNA N6-methyladenosine. Using a kit with the wrong antibody specificity will not report the mark you intend to measure.
Use methylation standards to build a calibration curve for quantitative results
Running a series of methylation standards with defined percentages alongside your samples allows the absorbance readout to be converted to a specific, meaningful methylation percentage, since the raw ELISA signal alone cannot be interpreted as absolute methylation level without a calibration.
Understand that ELISA measures global levels, not locus-specific methylation
A methylation ELISA gives the overall average percentage of methylation across the genome in a sample, which is useful for comparing broad methylation changes between conditions but cannot identify which specific genes or regions are differentially methylated the way bisulfite sequencing can.
Confirm the required DNA denaturation step is appropriate for your sample type
ELISA kits for DNA methylation typically require single-stranded, denatured DNA coated directly on the plate, and confirming this denaturation step is properly performed is necessary for consistent antibody binding and reproducible signal across wells.
Be aware of cross-reactivity with similar modifications when interpreting results
An antibody against 5-methylcytosine may have some cross-reactivity with 5-hydroxymethylcytosine, and confirming the antibody's published cross-reactivity data helps interpret whether your signal specifically reflects 5-mC, 5-hmC, or both, which matters for studies in cell types where 5-hmC is abundant.
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<h2>Specifications context</h2>
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The 5-methylcytosine ELISA workflow uses an indirect ELISA methodology where denatured, single-stranded DNA samples are coated directly on the plate well surfaces and a 5-mC monoclonal antibody and an HRP-conjugated secondary antibody are added sequentially, generating a colorimetric signal proportional to the total level of methylated cytosine in the sample. As of 2026, methylation ELISA kits are particularly valued for high-throughput screening studies comparing global methylation levels across many treatment conditions or patient groups where single-base-resolution data is not the primary goal.
This category sits within DNA/RNA Methylation, alongside Methylation Standards for calibration, and is related to DNA Hydroxymethylation and Non-Bisulfite Kits &amp; Reagents for higher-resolution methylation analysis. See the full reagents catalog and use Quick Order for recurring orders.
<a href="https://mbpinc.net/contact-us">Contact the expert team of&nbsp; Molecular Biology Products Inc. (MBP)</a> to get high-quality ELISA Kits and Reagents for your lab.

ELISA Kits & Reagents

MSDS

Secondary Antibody

D5325-3-15 by Zymo Research is the HRP-conjugated Secondary Antibody for use with the 5-mC DNA ELISA Kit (D5325/D5326), supplied in a 15 µl volume. It detects the anti-5-methylcytosine monoclonal antibody (Clone 7D21) in the colorimetric quantitation of global DNA methylation at 405 nm, with assay sensitivity &gt;0.5% 5-mC per 100 ng DNA. Available for individual component replenishment; store at −20 °C.

Shipping Condition

Storage Condition

Secondary Antibody (1 µg/µl) (15 µl)

Secondary Antibody (1 µg/µl) (30 µl)

ESR Systems

<h2 dir="ltr">What are ESR Systems?</h2>
 Erythrocyte sedimentation rate (ESR) systems are the consumables, tubes, and instruments used to measure how quickly red blood cells (erythrocytes) settle to the bottom of a standardized vertical tube over one hour &mdash; a nonspecific but widely used marker of systemic inflammation, infection, autoimmune activity, and malignancy. Choose Westergren tube-based ESR consumables for the ICSH reference method; choose closed-tube automated systems to reduce biohazard exposure and turnaround time in high-throughput clinical laboratories.
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<h2 dir="ltr">What You Will Find:<a href="sedi-rate-esr-westergren-system" title="Sedi-Rate ESR Westergren System"></a></h2>
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<ul>
<li data-section-id="vpm8z3" data-start="25" data-end="122">Sedi-Rate ESR Westergren systems for standardized erythrocyte sedimentation rate (ESR) testing.</li>
<li data-section-id="1tk7hk6" data-start="123" data-end="187">Westergren ESR pipettes compatible with Sedi-Rate ESR systems.</li>
<li data-section-id="1utc92a" data-start="274" data-end="387" data-is-last-node="">ESR testing products designed for reliable Westergren sedimentation rate measurements in clinical laboratories.</li>
<li data-section-id="1utc92a" data-start="274" data-end="387" data-is-last-node=""><a href="esr-systems/esr-system-accessories" title="Accessories for ESR System" style="color: #236fa1;">ESR System Accessories</a> &ndash; Essential support tools including racks and stabilizers for organized and vibration-free sample positioning.</li>
</ul>
<h2 dir="ltr"> How to Choose ESR Systems</h2>
 Manual Westergren vs. Automated Closed-Tube The manual Westergren method uses open-top glass or plastic 200 mm tubes filled with diluted blood and read manually at 60 minutes &mdash; reproducible, low-cost, but biohazard-exposed and slow (one rack per hour). Closed-tube automated systems (e.g., Greiner VACUETTE, Alifax TEST1, Streck Sedimat) use sealed vacuum-draw ESR tubes pre-filled with sodium citrate that eliminate dilution and open-tube handling; automated readers record RBC fall in real time and report in as little as 20&ndash;30 minutes. Choose automated systems for labs processing &gt;30 ESR tests per shift. Tube Type: Citrate vs. EDTA-Based Methods The standard Westergren method requires 3.8% sodium citrate (9:1 blood: citrate ratio, or 4:1 blood:0.4 mL citrate). The modified Westergren method uses EDTA-anticoagulated blood diluted 4:1 with 0.85% saline, making it compatible with the K2 EDTA tubes routinely drawn for CBC &mdash; practical for labs that want to batch ESR onto an existing EDTA draw. Results from citrate and EDTA-saline methods are comparable when dilution is controlled. Westergren Tube Specifications Westergren tubes are 300 mm total length (usable 200 mm graduated column), bore 2.5&ndash;2.7 mm I.D., graduated in mm from 0 at the top to 200 at the bottom. Tubes may be glass or plastic. Kits such as Sediplast (Polymedco) and Vacuette ESR (Greiner) include a self-zeroing pipette that draws blood to the zero mark automatically, eliminating the manual zeroing step and reducing biohazard exposure. Rack and Stand Requirements Manual Westergren tubes must be held perfectly vertical (within &plusmn;2&deg; of vertical) at a stable temperature (18&ndash;25 &deg;C) for the full 60-minute reading period. Temperature variation of &plusmn;3 &deg;C can change ESR by 3&ndash;5 mm/h. Rack kits with leveling feet ensure the required vertical alignment. Reference Ranges and Interpretation Normal ESR: males &lt;50 years, &le;15 mm/h; males &ge;50 years, &le;20 mm/h; females &lt;50 years, &le;20 mm/h; females &ge;50 years, &le;30 mm/h (Westergren method, ICSH 1993). ESR is ordered alongside CRP and CBC; neither result should be interpreted in isolation. 
<h2 dir="ltr"> Specifications Context</h2>
 The Westergren tube complies with ICSH/CLSI specification: 300 mm total length, 2.5 mm &plusmn; 0.1 mm bore, graduated 0&ndash;200 mm. The 60-minute incubation must occur at 18&ndash;25 &deg;C; each &deg;C increase above 25 &deg;C raises ESR by approximately 0.7 mm/h (ICSH). Blood specimen for manual ESR: 2.0 mL minimum of EDTA whole blood (K2 EDTA, lavender-top) or sodium citrate vacuum tube; process within 4 hours of collection at room temperature or within 24 hours if refrigerated at 2&ndash;8 &deg;C per CLSI H02-A6. The ICSH-endorsed Westergren method has been the gold standard for ESR since 1973; automated photometric systems correlate with the Westergren reference method at r &ge; 0.95 per published peer-reviewed comparisons.
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If you need help selecting ESR consumables, the <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">MBP team</a> is here to answer all queries.

3479-Group-ESR Catalog

Sedi-Rate ESR System from Globe Scientific

Sedi-Rate ESR Westergren Pipette

3479 by Globe Scientific is the EZ-Rate™ Westergren ESR pipette for use with 13mm sodium citrate blood collection tubes. Graduated 0–180mm for direct-read results after a 60-minute incubation period. Polystyrene construction with a self-sealing fibrous aerosol barrier at the zero mark. Box of 100; bulk case of 2000 (SKU 3480) available. Pairs with the Sedi-Rate accessory line (SKU 3472, 3452, 3459).

ESR: EZ-Rate Westergren Pipette, 100 Tests (For use with 13mm Blood Collection Tube), BOX/100

ESR: EZ-Rate Westergren Pipette, 200 Tests (For use with 13mm Blood Collection Tube), BOX/200

ESR: EZ-Rate Westergren Pipette, 200 Tests/Box, 10 Boxes/Unit (For use with 13mm Blood Collection Tube), CS/2000

ESR: EZ-Rate Westergren Pipette, 800 Tests (For use with 13mm Blood Collection Tube), CS/800

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