Brands

<h2 dir="ltr"> What are siRNA Lentiviral Negative Controls?</h2>
 Every well-designed RNAi experiment requires at least one matched negative control. Without proper control, it is impossible to determine whether an observed phenotype reflects specific target gene silencing, non-specific dsRNA effects, viral transduction artefacts, or off-target silencing by the guide strand. Meaningful gene-silencing results require proper experimental controls. Choose the siRNA control appropriate for your study.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li>Scrambled siRNA Control Vectors: Non-targeting siRNA lentivectors for negative control experiments in gene-silencing studies.</li>
<li>Scrambled siRNA Control Viruses:&nbsp; Ready-to-use lentiviral controls for validating RNAi workflows and transduction conditions.</li>
<li>GFP-Expressing Controls: Scrambled siRNA constructs with GFP reporters for monitoring transduction and expression.</li>
<li>Neomycin-Selectable Controls: Control vectors and viruses featuring neomycin resistance for stable cell selection.</li>
<li>Vector and Viral Formats: Available as both lentivectors and packaged lentiviruses to support diverse experimental workflows.</li>
</ul>
<h2 dir="ltr"> How to Choose siRNA Negative Controls</h2>
 Control Design Type Non-targeting siRNA sequences are bioinformatically designed with no significant homology to any known human, mouse, or rat gene &mdash; entering RISC and activating RNAi machinery the same way as experimental sequences, providing a physiologically relevant baseline. Scrambled vs. Non-Targeting Scrambled controls rearrange the nucleotide sequence of an experimental siRNA while preserving base composition, but the rearranged sequence may inadvertently contain a seed region with off-target homology. Non-targeting designs with seed-region optimisation are the preferred approach. Vector Backbone Matching Non-targeting lentiviral controls should use the same vector backbone and promoter as the experimental, so differences between groups are attributable to sequence-specific effects rather than backbone, promoter, or selection marker differences. Community Standard Reference The pLKO.1 scramble control (Addgene 1864), deposited from the Sabatini lab, is the community standard negative control for TRC library-based experiments, cited in thousands of publications. Selection and Reporter Options Lentiviral negative controls are available with puromycin, hygromycin, blasticidin, and neomycin selection markers, as well as fluorescent reporter versions (GFP, RFP) for FACS-based selection. 
<h2 dir="ltr"> Specifications Context</h2>
 Microarray profiling studies have demonstrated that scrambled controls can exhibit off-target expression signatures differing from non-targeting controls &mdash; non-targeting designs validated with a minimum of three mismatches or gaps to all potential PAM-adjacent targets are the preferred standard for rigorous RNAi design. Best practice recommends including a non-targeting negative control, an empty vector control, and, where possible, a positive control targeting a constitutively expressed housekeeping gene (GAPDH, ACTB) to confirm knockdown conditions are functioning. For lentiviral screens, multiple distinct non-targeting controls should be distributed throughout the library to provide a statistically robust baseline. Validation by microarray or RNA-seq should show minimal differential gene expression (&lt;2-fold) versus untreated cells. 
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP today to get professional siRNA controls for your lab.

siRNA Control

AAV Packaging Protocol

Lentiviral Vector Amplification Protocol

AAV Infection Guideline

Selection-Drug Killing Curve

Lentivector Packaging Protocol

Lentivirus Infection Protocol

Scrambled siRNA GFP Lentivirus with Neomycin

LVP015-N by Applied Biological Materials is a pre-packaged scrambled siRNA GFP lentiviral virus with Neomycin resistance. Scrambled siRNA (5′-GGGTGAACTCACGTCAGAA-3′) + GFP + G418 selection. Supplied at 107 IU/mL as 3 × 250 µL. Ready to transduce. Store at −80°C; shipped on dry ice.

Unit Quantity

Vector Map

Titer

Storage Condition

Shipping Condition

Scrambled siRNA Lentivector

LV015 by Applied Biological Materials is a 500 ng minimal lentiviral siRNA control plasmid encoding a validated scrambled siRNA (5′-GGGTGAACTCACGTCAGAA-3′) with no reporter or selection marker. Simplest-format negative control for lentiviral RNAi experiments. Requires lentiviral packaging. Store at −20°C or below.

Description

Scrambled siRNA Lentivirus

LVP015 by Applied Biological Materials is a pre-packaged scrambled siRNA lentiviral control virus. Scrambled siRNA (5′-GGGTGAACTCACGTCAGAA-3′), no reporter, no selection. Supplied at 108 IU/mL as 3 × 250 µL. Minimal-format high-titer negative control for lentiviral RNAi experiments. Store at −80°C; shipped on dry ice.

<h2 dir="ltr">What Are Mutation Detection Kits?</h2>
 Mutation detection kits confirm that CRISPR/Cas9 (or TALEN/ZFN) editing has produced the intended insertions or deletions (indels) before researchers proceed to downstream experiments. Enzymatic mismatch cleavage (EMC) assays, primarily T7 endonuclease I (T7E1) and Surveyor nuclease, are the most widely adopted method due to their simplicity and compatibility with standard molecular biology infrastructure. Reliable mutation detection is essential for confirming genetic variants and genome-editing outcomes. Select the kit that aligns with your analytical requirements.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Genomic Cleavage Detection Assays: Specialized kits designed to quantify indel frequency via T7E1 or Surveyor nuclease-mediated mismatch recognition.
</li>
<li dir="ltr" aria-level="1">
Screen It&trade; CRISPR Cas9 Systems: High-throughput compatible tools for streamlined validation of locus-specific modifications with minimal sequence bias.
</li>
</ul>
<h2 dir="ltr"> How to Choose a Mutation Detection Kit</h2>
 Mutation Type T7E1 offers higher sensitivity for insertions and deletions (indels), making it the preferred first-line tool for confirming CRISPR knockout experiments. Surveyor nuclease performs better for single-nucleotide substitutions. Required Resolution EMC assays (T7E1, Surveyor) serve as rapid, cost-effective screening tools, typically detecting indel frequencies down to 2&ndash;5% in a mixed population. For more precise quantification at lower frequencies, NGS-based methods such as TIDE or targeted amplicon sequencing are recommended. Equipment Available T7E1 and Surveyor assays require only a thermal cycler, standard PCR reagents, agarose gel electrophoresis equipment, and a UV transilluminator &mdash; all standard in most molecular biology labs, with no specialised equipment needed. Editing Technology Compatibility Mutation detection kits in MBP's catalogue are compatible with CRISPR/Cas9 (all Cas9 variants), CRISPR/Cas12 systems, TALENs, and zinc finger nucleases (ZFNs), as well as a range of model organisms beyond mammalian cell lines. Throughput Needs PCR-based mutation detection assays run in parallel across many samples in a single thermal cycler run, making them well-suited to high-throughput clone screening after bulk editing confirmation. 
<h2 dir="ltr"> Specifications Context</h2>
 The T7E1 workflow involves four steps: PCR amplification of the target region, denaturation and re-annealing to form heteroduplexes, enzymatic digestion with T7E1 (which cleaves mismatched DNA), and gel analysis, where the ratio of cut to uncut bands estimates editing efficiency. Research published in G3: Genes|Genomes|Genetics shows T7E1 outperforms Surveyor for detecting deletions, while Surveyor has advantages for point mutations. A positive T7E1 result confirms indel presence but not the exact sequence; Sanger sequencing or targeted NGS typically follows to characterise the edit. Running a known-positive control alongside experimental samples -- for example, a previously validated guide RNA targeting the same locus -- helps confirm the T7E1 digestion conditions are working correctly before interpreting negative results as a failed edit. Product availability reflects MBP's catalogue as of mid-2026. 
Contact the <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">expert team at MBP Inc</a>. today to request a quote for the right mutation detection kit for your lab.

Mutation Detection Kits

DataSheet

MSDS

User Manual

Screen It™ CRISPR Cas9 Cleavage Detection Kit

G990 by Applied Biological Materials is the Screen It™ CRISPR Cas9 Cleavage Detection Kit — an RNA-dependent, 100-reaction kit that identifies wild-type, monoallelic, and biallelic CRISPR editing outcomes by agarose gel. Includes all reagents for on-site sgRNA synthesis, RNP formation, cell lysis, PCR (MegaFi™ Pro 2X MasterMix), and cleavage detection. Surpasses T7E1/Surveyor assays in zygosity resolution. Store at &minus;20°C.

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>
&nbsp;
<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="155qizo" data-start="0" data-end="33">What Are All Centrifuge Tubes?</h2>
&nbsp;
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.
&nbsp;
What you will find:
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
<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.
</li>
<li dir="ltr" aria-level="1">
<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.
</li>
<li dir="ltr" aria-level="1">
<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>
<li dir="ltr" aria-level="1">
<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.
</li>
<li dir="ltr" aria-level="1">
<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>
&nbsp;
<h2 data-section-id="1f93yys" data-start="914" data-end="963">How to Choose From All Centrifuge Tube Formats</h2>
&nbsp;
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.
&nbsp;
<h2 data-section-id="urfo3f" data-start="2395" data-end="2433">Compare Centrifuge Tube Size Groups</h2>
&nbsp;
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.
&nbsp;
<h2 data-section-id="1ezckh3" data-start="3318" data-end="3348">Specifications and Features</h2>
&nbsp;
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

<h2 data-section-id="kx7ycn" data-start="0" data-end="39">What Are Screw Cap Centrifuge Tubes?</h2>
&nbsp;
Screw cap centrifuge tubes are polypropylene vessels with a threaded closure that rotates to create a compression seal, typically reinforced by a silicone or polyethylene O-ring. This seal design prevents evaporation, leakage, and contamination under conditions where a snap cap fails, including high-speed centrifugation up to 20,000 &times; g, repeated freeze-thaw cycles from &minus;80 &deg;C to +121 &deg;C, exposure to volatile organic solvents, and long-term cryogenic storage. Available in volumes ranging from 0.5 mL to 2.0 mL, these tubes are commonly used in proteomics, genomics, drug discovery, biobanking, and other applications where maintaining sample integrity is critical throughout multiple processing steps.
Choose screw cap tubes instead of snap-cap tubes when working with volatile samples, repeated freeze-thaw cycles, high centrifugal forces above 16,000 &times; g, or long-term storage at &minus;80 &deg;C.
<h2 dir="ltr">&nbsp;</h2>
<h2 dir="ltr">In this part, you will discover:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
0.5mL, 1.5mL, 2.0mL (for small to moderate volume applications)
</li>
</ul>
<ul>
<li dir="ltr" aria-level="1">
O-ring caps: Leak-proof, prevents evaporation
</li>
<li dir="ltr" aria-level="1">
Tubes only: Compatible with existing caps
</li>
</ul>
<ul>
<li dir="ltr" aria-level="1">
Sterile: For sensitive, contamination-prone work
</li>
<li dir="ltr" aria-level="1">
Non-sterile: Cost-effective for routine use
</li>
</ul>
&nbsp;
<h2 data-section-id="1w7d404" data-start="949" data-end="981">How to Choose Screw Cap Tubes</h2>
&nbsp;
O-Ring vs Non-O-Ring Seal
Screw cap tubes with integrated silicone O-rings provide a hermetic seal that is ideal for volatile chemicals, infectious materials, and valuable samples where evaporative loss must be minimized. Non-O-ring designs, including rim-seal and plug-seal caps, are suitable for most routine molecular biology storage applications at temperatures between &minus;20 &deg;C and &minus;80 &deg;C and are often easier to open when working in cold environments.
Internal Thread vs External Thread
Internal-thread screw cap tubes maintain a smooth exterior profile and are generally compatible with standard microcentrifuge rotors without requiring additional adapters. External-thread designs provide easier cap handling while wearing gloves and are frequently used in self-standing tube formats that can be placed directly in racks.
Volume Selection: 0.5 mL vs 1.5 mL vs 2.0 mL
0.5 mL screw cap tubes are commonly used for concentrated enzymes, antibodies, and other valuable reagents where minimizing dead volume is important.
1.5 mL screw cap tubes are the standard choice for molecular biology applications, including RNA and DNA storage, pellet recovery, and protein fraction collection.
2.0 mL screw cap tubes provide additional capacity and headspace for bead-based extraction methods, precipitation workflows, and sample mixing procedures.
Nest Scientific offers 0.5 mL, 1.5 mL, and 2.0 mL self-standing screw cap tubes with multiple cap color options to simplify sample identification and organization.
Sterility Grade
Sterile screw cap tubes are gamma- or E-beam-irradiated to a sterility assurance level (SAL) of 10⁻⁶ and are recommended for RNA applications, clinical specimen processing, and cell culture workflows. Non-sterile RNase-free and DNase-free tubes provide a cost-effective alternative for DNA and protein-related applications.
&nbsp;
<h2 data-section-id="ibka1i" data-start="2868" data-end="2901">Compare Screw Cap Tube Options</h2>
&nbsp;
Nest Scientific self-standing screw cap tubes are available in 0.5 mL, 1.5 mL, and 2.0 mL volumes with external threads and integrated sealing rings. Rated up to 20,000 &times; g, these tubes are ideal for general sample storage and laboratories that use color-coded organization systems.
Globe Scientific self-standing screw cap tubes with silicone O-rings are offered in 1.5 mL and 2.0 mL formats. Their enhanced sealing performance makes them particularly suitable for volatile samples, cryogenic storage, and applications where maximum sample protection is required. These tubes are rated up to 20,000 &times; g.
Conical-bottom screw cap tubes are commonly available in 1.5 mL formats with internal threads and optional sealing systems. Their conical design improves pellet recovery and makes them well suited for precipitation and centrifugation workflows. These tubes can withstand centrifugal forces up to 20,000 &times; g.
Amber screw cap tubes are available in 1.5 mL and 2.0 mL capacities and feature O-ring seals for additional protection. Designed for light-sensitive samples, they are typically rated up to 16,000 &times; g and help protect reagents from light-induced degradation.
&nbsp;
<h2 data-section-id="1jl751w" data-start="4094" data-end="4119">Specifications Context</h2>
&nbsp;
Globe Scientific and Nest Scientific screw cap microtubes are manufactured from USP Class VI virgin polypropylene and are certified RNase-free, DNase-free, and non-pyrogenic by lot. Nest Scientific screw cap tubes are available with six cap color options, including blue, red, yellow, purple, green, and natural, and are typically packaged in packs of 50 tubes with 500 tubes per case. These tubes are suitable for temperatures ranging from &minus;80 &deg;C to +121 &deg;C.
As of 2026, MBP stocks both self-standing and conical-bottom screw cap tube formats from Globe Scientific and Nest Scientific. Availability may vary by volume, cap style, and color configuration.
Don't let equipment choices hold back your next breakthrough. <a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;">Contact our team at Molecular Biology Products Inc.</a> for a custom quote.

Screw Cap Tubes

Screw Cap Tube. 0.5ml. Self-Standing, Non Sterile

SCT-050SS by Novas Bio — 0.5 mL self-standing screw-cap tube, medical-grade PP, pierceable cap, endotoxin/RNase/DNase/BSE-TSE-free, −80°C to +121°C, 20,000 × g, 500/pack.

Manufacturer

Screw Cap Tube. 0.5ml. Self-Standing,Clear

Screw Cap Tube. 0.5ml. Self-Standing, Green

Screw Cap Tube. 0.5ml. Self-Standing, White

Screw Cap Tube. 0.5ml. Self-Standing, Blue

Screw Cap Tube. 0.5ml. Self-Standing, Yellow

Screw Cap Tube. 0.5ml. Self-Standing, Red

Screw Cap Tube. 1.5ml. Conical, Non Sterile

SCT-150 by MBP: 1.5 ml conical polypropylene screw-cap microcentrifuge tube with syringe port. DNase-free, RNase-free, non-pyrogenic. Clear tube, clear cap. Non-sterile. Designed for secure long-term sample storage and transport.

Screw Cap Tube. 1.5ml. Conical, Clear

Screw Cap Tube. 1.5ml. Conical, Green

Screw Cap Tube. 1.5ml. Conical, White

Screw Cap Tube. 1.5ml. Conical, Blue

Screw Cap Tube. 1.5ml. Conical, Yellow

Screw Cap Tube. 1.5ml. Conical, Red

Screw Cap Tube. 1.5ml. Self-Standing

ST-150SS by Novas Bio — 1.5 mL self-standing screw cap microcentrifuge tube, medical-grade PP, sterile, O-ring seal. DNase/RNase/human DNA free, non-pyrogenic. –80°C to +121°C, 20,000×g. 100 tubes and caps/unit. Research use only.

Screw Cap Tube. 1.5ml. Self-Standing, Clear

Screw Cap Tube. 1.5ml. Self-Standing, Green

Screw Cap Tube. 1.5ml. Self-Standing, White

Screw Cap Tube. 1.5ml. Self-Standing, Blue

Screw Cap Tube. 1.5ml. Self-Standing, Yellow

Screw Cap Tube. 1.5ml. Self-Standing, Red

Transport Tubes

<h2 dir="ltr">What are Transport Tubes?</h2>
 Transport tubes are sterile, leak-proof screw-cap tubes used for collecting, transporting, and temporarily storing biological specimens from the collection site to the testing laboratory. They span a broad category: empty specimen containers (15 mL and 50 mL self-standing conical tubes), pre-filled saline transport tubes, UTM (Universal Transport Medium) tubes, and specialty specimen vials. All transport tubes share three required attributes&mdash;leak-proof construction, sterility confirmation, and compatibility with the downstream assay's matrix requirements. Choose the transport tube type based on the specimen, the target analyte, and the assay platform it will be processed on. 
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">5 mL transport tubes for routine sample movement</li>
<li dir="ltr" role="presentation">10 mL tubes for higher volume biological samples</li>
<li dir="ltr" role="presentation">Leak-tight screw-cap tubes for secure handling</li>
<li dir="ltr" role="presentation">Sterile transport tubes for clinical workflows</li>
<li dir="ltr" role="presentation">Graduated tubes with labeling surfaces for tracking</li>
<li dir="ltr" role="presentation">Self-standing tubes for easier bench organization</li>
</ul>
&nbsp;
<h2 dir="ltr">How to Choose Transport Tubes</h2>
 Material: Polypropylene (PP) vs. Polystyrene (PS) PP conical transport tubes are chemical-resistant, autoclavable, and certified DNase/RNase-free in molecular-grade formats. PS transport tubes (30 mL translucent format, Globe Scientific) are lighter and less expensive but not autoclavable. For nucleic acid work, DNA/RNA-free certified PP is the standard. For specimen transport requiring centrifugation, PP is preferred due to higher g-force tolerance (PP rated to &ge;10,000 &times; g in most formats). Self-Standing vs. Rack Format Self-standing (skirted-base) conical tubes stand upright without a rack, reducing knock-over risk during aliquoting and transport. Rack-based tubes require a separate holder. Globe Scientific self-standing 50 mL PP transport tubes feature a printed graduation, white frosted writing area, and are available sterile, non-sterile, or metal-free. Sterile tubes are RNase/DNase-free and pyrogen-free per the lot certificate. Sterile vs. Non-Sterile Sterile tubes (ISO 11137 radiation sterilization, SAL 10⁻⁶) are required for culture, NAAT, and any specimen where contamination would invalidate the result. Non-sterile metal-free PP tubes are suited to trace-element analysis and environmental sampling where sterility is not required but metal contamination would interfere. Volume 15 mL tubes are standard for most clinical specimen aliquots, urine transfers, and culture setups. 50 mL tubes are used for higher-volume specimens (24-hour urine aliquots, stool homogenates, bulk transport of tissue homogenates). Globe Scientific 30 mL tubes with integral spoon are designed specifically for fecal specimen self-collection. Media and Additives Empty transport tubes (no fill) are the base format; select a pre-filled tube (saline, UTM, boric acid) based on the specimen type and analyte stability requirements. For nucleic acid targets, pre-filled tubes with DNA/RNA Shield, UTM, or saline are the appropriate formats. 
<h2 dir="ltr"> Specifications Context</h2>
 Globe Scientific self-standing 50 mL conical transport tubes are manufactured from USP Class VI medical-grade PP with a conical bottom skirt for freestanding stability. Printed graduation marks (1 mL intervals) and a frosted writing area are standard features. Sterile versions are individually wrapped and certified RNase-free, DNase-free, and pyrogen-free per lot certificate, consistent with ISO 9001:2015 manufacturing standards. Non-sterile metal-free versions are supplied with a separate natural screw cap and are tested for trace metals via ICP-MS before lot release. MBP's transport tubes catalog includes Globe Scientific and NEST Scientific formats in multiple pack sizes (25/bag and bulk packs of 500). 
&nbsp;
If you need help choosing tube size or matching the right transport format to your workflow,<a href="https://mbpinc.net/contact-us" style="color: #236fa1; text-decoration: underline;"> the MBP team</a> can help you sort it out without overthinking it.

Transport Tube Products

Tubes, Caps & Racks Catalog

Lab Supplies for Physicians Offices

TDS - 6101 Series

TDS - 6102 Series

Screw Cap for 5mL and 10mL Transport Tubes

Globe Scientific 6103-CAP — leak-resistant, shatter-proof polypropylene screw cap for 5mL and 10mL Globe Scientific transport tubes (6101/6102 series); rated for freezing temperatures.

Manufacture

Screw Cap for 5mL and 10mL Transport Tubes (#'s: 6101-TUBE & 6102-TUBE), Blue, BAG/1000

Screw Cap for 5mL and 10mL Transport Tubes (#'s: 6101-TUBE & 6102-TUBE), Green, BAG/1000

Screw Cap for 5mL and 10mL Transport Tubes (#'s: 6101-TUBE & 6102-TUBE), Red, BAG/1000

Screw Cap for 5mL and 10mL Transport Tubes (#'s: 6101-TUBE & 6102-TUBE), White, BAG/1000

Screw Cap for 5mL and 10mL Transport Tubes (#'s: 6101-TUBE & 6102-TUBE), Yellow, BAG/1000

Sample Tubes

Product Literature

Screwcap Sample Tubes, Graduated

Globe Scientific 6050: 1.2 mL PP screwcap sample tube, conical bottom, external threads, self-standing. White graduations and writing area. &minus;196&deg;C to 121&deg;C. Autoclavable. Caps sold separately. 1,000/bag.

Sample Tube, 1.2mL, External Threads, PP, White Graduations & Marking Area, Conical Bottom, Self-Standing, BAG/1000

Sample Tube, 2mL, External Threads, PP, White Graduations & Marking Area, Round Bottom, BAG/1000

Sample Tube, 2mL, External Threads, PP, White Graduations & Marking Area, Round Bottom, Self-Standing, BAG/1000

Sample Tube, 3mL, External Threads, PP, White Graduations & Marking Area, Round Bottom, Self-Standing, BAG/1000

Sample Tube, 4mL, External Threads, PP, White Graduations & Marking Area, Round Bottom, BAG/1000

Sample Tube, 4mL, External Threads, PP, White Graduations & Marking Area, Round Bottom, Self-Standing, BAG/1000

Sample Tube, 5mL, External Threads, PP, White Graduations & Marking Area, Round Bottom, BAG/1000

Sample Tube, 5mL, External Threads, PP, White Graduations & Marking Area, Round Bottom, Self-Standing, BAG/1000

Brochure

Screwcap Sample Tubes, Non-Graduated

6030 by Globe Scientific is a non-graduated polypropylene screwcap sample tube rated to 17,000×g and −196°C to +121°C. External threading yields a smooth inner wall; available in 1.2–5 mL volumes, round/conical/self-standing bases, and optional silicone O-ring cap. 1,000/bag. Suitable for biobanking, DNA/RNA storage, and high-speed centrifugation. Order from MBP, a registered vendor to Howard Hughes Medical Institute, Vanderbilt University, MD Anderson Cancer Center, Eurofins, and many other institutes across the USA.

Sample Tube, 1.2mL, External Threads, PP, Conical Bottom, Self-Standing, BAG/1000

Sample Tube, 2mL, External Threads, PP, Round Bottom, BAG/1000

Sample Tube, 2mL, External Threads, PP, Round Bottom, Self-Standing, BAG/1000

Sample Tube, 3mL, External Threads, PP, Round Bottom, Self-Standing, BAG/1000

Sample Tube, 4mL, External Threads, PP, Round Bottom, BAG/1000

Sample Tube, 4mL, External Threads, PP, Round Bottom, Self-Standing, BAG/1000

Sample Tube, 5mL, External Threads, PP, Round Bottom, BAG/1000

Sample Tube, 5mL, External Threads, PP, Round Bottom, Self-Standing, BAG/1000

Screwcap with O-Ring for Sample Tubes

6137 by Globe Scientific is a polypropylene screwcap with a silicone washer for Globe Scientific sample tubes with external threads. Fast-thread single-turn design; leakproof from −196°C to 121°C, centrifuge-rated to 17,000 × g, and autoclavable. Bag of 1000; nine colors available for sample coding.

Screw Cap, with Silicone Washer for Sample Tubes with External Threads (#'s: 6030-6059), Clear, BAG/1000

Screw Cap with Silicone Washer for Sample Tubes with External Threads (#'s: 6030-6059), Gray, BAG/1000

Screw Cap with Silicone Washer for Sample Tubes with External Threads (#'s: 6030-6059), Blue, BAG/1000

Screw Cap with Silicone Washer for Sample Tubes with External Threads (#'s: 6030-6059), Green, BAG/1000

Screw Cap with Silicone Washer for Sample Tubes with External Threads (#'s: 6030-6059), Lilac, BAG/1000

Screw Cap with Silicone Washer for Sample Tubes with External Threads (#'s: 6030-6059), Orange, BAG/1000

Screw Cap with Silicone Washer for Sample Tubes with External Threads (#'s: 6030-6059), Red, BAG/1000

Screw Cap, with Silicone Washer for Sample Tubes with External Threads (#'s: 6030-6059), White, BAG/1000

Screw Cap with Silicone Washer for Sample Tubes with External Threads (#'s: 6030-6059), Yellow, BAG/1000

Screwcap without O-Ring for Sample Tubes

Globe Scientific 6136 — polypropylene screwcap without O-ring for Globe Scientific sample tubes. Temperature range −196°C to 121°C; compatible tube systems rated to 17,000×g. Suits cryogenic storage (vapor-phase LN2), autoclave sterilization, and high-speed centrifugation workflows.

Screw Cap for Sample Tubes with External Threads (#'s: 6030-6059), Clear, BAG/1000

Screw Cap for Sample Tubes with External Threads (#'s: 6030-6059), Gray, BAG/1000

Screw Cap, for Sample Tubes with External Threads (#'s: 6030-6059), Blue, BAG/1000

Screw Cap, for Sample Tubes with External Threads (#'s: 6030-6059), Green, BAG/1000

Screw Cap for Sample Tubes with External Threads (#'s: 6030-6059), Lilac, BAG/1000

Screw Cap, for Sample Tubes with External Threads (#'s: 6030-6059), Orange, BAG/1000

Screw Cap, for Sample Tubes with External Threads (#'s: 6030-6059), Red, BAG/1000

Screw Cap, for Sample Tubes with External Threads (#'s: 6030-6059), White, BAG/1000

Screw Cap, for Sample Tubes with External Threads (#'s: 6030-6059), Yellow, BAG/1000

United States

Texas

mbpinc