Brands

Minicentrifuge Accessories

<h2>What Are Minicentrifuge Accessories?</h2>
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Minicentrifuge accessories are the consumable and replacement components that maintain performance and extend the versatility of personal minicentrifuges. These include replacement microtube rotors for 1.5/2.0 mL tubes, PCR tube and strip rotors for 0.2 mL formats, tube adapters for smaller tube sizes, replacement lids for multi-user identification, and power or battery accessories for portable operation. Most minicentrifuge accessories are model-specific, as rotor coupling systems and mounting mechanisms differ between manufacturers, making model verification essential before ordering replacement parts.
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<h2>What You Will Find:</h2>
&nbsp;
<ul>
<li>8-Place Rotor for 1.5/2.0 mL Tubes: Ideal for routine processing of standard microcentrifuge tubes</li>
<li>Rotor for GCM Series (2 &times; 8 Position): Designed for 0.2 mL PCR tubes and PCR strip formats</li>
<li>Adapters for Micro-Rotors: Compatible accessories for 1.5 mL rotor systems and smaller tube formats</li>
<li>Rotor Cavity Sleeves for 0.2 mL Tubes: Allow smaller microtubes to fit securely in standard rotor positions</li>
<li>Rotor Cavity Sleeves for 0.5 mL Tubes: Enable the use of 0.5 mL tubes in standard microtube rotors</li>
</ul>
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<h2>How to Choose Minicentrifuge Accessories</h2>
&nbsp;
Replacement Rotor Identification
The most important step is confirming the correct rotor model number. Different minicentrifuges use different attachment systems, including tool-free, press-fit, and screw-mounted designs. Always order OEM-approved replacement rotors to ensure compatibility, proper balance, and safe operation at the rated speed.
Tube Adapter Sizes
Standard adapter kits typically support 0.5 mL and 0.2 mL tubes within larger rotor positions. Laboratories using specialized tube formats should confirm adapter availability and compatibility before purchasing replacement sets.
Colored Lid Options
Color-coded replacement lids help distinguish individual instruments in shared laboratory environments. These lids are generally manufactured from durable polycarbonate materials and are available in multiple colors, depending on the centrifuge model.
Power Adapters and Voltage Requirements
When replacing a power supply, verify the input voltage, DC output specifications, connector size, and polarity requirements. Universal-input adapters provide greater flexibility for laboratories operating across different regions and power standards.
Battery Accessories
Battery-compatible minicentrifuges require manufacturer-approved battery trays and accessories. Portable operation is particularly useful for field research, point-of-care testing, and laboratory environments where access to mains power is limited.
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<h2>Specifications Context</h2>
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Most minicentrifuge rotors are manufactured from polycarbonate or ABS materials and are designed for operation at approximately 6,000 RPM. Variable-speed models may use rotors rated for higher operating speeds. Laboratories using aggressive solvents should inspect plastic components regularly, as prolonged exposure may lead to stress cracking and reduced service life.
Modern minicentrifuges commonly feature tool-free rotor exchange systems that simplify maintenance and daily use. Older models may still require dedicated rotor tools or fastening mechanisms, making it important to maintain the correct accessories and replacement components for each instrument.
Your search for dependable minicentrifuge accessories is over. <a href="https://mbpinc.net/contact-us">Contact our expert team</a> at Molecular Biology Products Inc. to find the right minicentrifuge accessories for your lab.

Rotor Cavity Sleeves for use with GCM Series Mini Centrifuges, converts the rotor cavity for use with 0.2mL Microcentrifuge Tubes, 8 each

The GCM-AD2 by Globe Scientific provides eight rotor cavity sleeves that convert the GCM Series Mini Centrifuge rotor to accommodate 0.2 mL microcentrifuge tubes, enabling quick-spin of PCR tubes at up to 7,000 RPM (2,680 × g). The EZ-Swap tool-free design allows rotor conversion in seconds.

Manufacture

Rotor Cavity Sleeves for use with GCM Series Mini Centrifuges, converts the rotor cavity for use with 0.5mL Microcentrifuge Tubes, 8 each

GCM-AD5 by Globe Scientific is a pack of 8 rotor cavity sleeves that convert GCM Series mini centrifuge rotors for use with 0.5 mL microcentrifuge tubes, enabling 7,000 RPM centrifugation of sub-milliliter samples that cannot seat securely in the standard 1.5/2.0 mL rotor positions.

Rotor for use with GCM Series Mini Centrifuges, 7000rpm, 2 x 8 Position, for 0.2mL PCR Tubes and Strips

GCM-PCR by Globe Scientific is a 2 × 8 position PCR rotor (7,000 rpm, 2,680 × g) for the Globe Scientific GCM Series Mini Centrifuges, designed for 0.2 mL PCR tubes and 8-strip PCR tubes. It installs tool-free via Globe Scientific's EZ-Swap™ system and allows quick cap-down spins, post-PCR sample collection, and parallel processing of two 8-strip sets per run.

Rotor for use with GCM Series Mini Centrifuges, 7000rpm, 8-Place, for 1.5 and 2.0mL Microcentrifuge Tubes

The GCM-ROT by Globe Scientific is an 8-place fixed-angle rotor for the Globe Scientific GCM series mini centrifuges, running at a fixed 7,000 rpm / 2,680 × g for 1.5 mL and 2.0 mL microcentrifuge tubes. Order as a spare or replacement for GCM-R, GCM-B, GCM-G, or GCM-P instruments.

Laboratory Centrifuge Accessories

<h2>What Are Laboratory Centrifuge Accessories?</h2>
&nbsp;
Laboratory centrifuge accessories are the components that determine a centrifuge's practical versatility, safety profile, and service life: replacement and additional rotors (fixed-angle and swing-out), tube adapters that allow one rotor to process multiple tube formats, aerosol-tight sealed lids and safety buckets for biocontainment during infectious sample centrifugation, rotor lubricants, balance tubes, and replacement O-rings and gaskets. All centrifuge accessories are model-specific&mdash;rotors are not interchangeable between manufacturers or between centrifuge models within the same brand, and using an uncertified rotor on any centrifuge is a serious safety hazard.
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<h2>What You Will Find:</h2>
&nbsp;
<ul>
<li>Rotor Shields for 130 mm Tubes: Safe, steady centrifugation for taller tube formats</li>
<li>Adapter Pack for 5 mL and 7 mL Tubes: Perfect fit for 5 mL and 7 mL tubes in 15 mL rotors</li>
</ul>
&nbsp;
<h2>How to Choose Laboratory Centrifuge Accessories</h2>
&nbsp;
Rotor Selection (Fixed-Angle vs. Swing-Out)
If your centrifuge supports interchangeable rotors, specify the rotor type matched to your primary workflows: fixed-angle for molecular biology spin-column kits, pelleting, and bacterial harvesting; swing-out for density gradients, serum preparation, and gentle mammalian cell processing. Confirm the rotor's maximum RCF matches your highest-speed protocol and that the rotor radius is compatible with the centrifuge drive shaft and motor rating.
Tube Adapters
Tube adapters extend a single rotor to accommodate smaller tube formats. When ordering, confirm the adapter's bore inner diameter (ID) matches the outer diameter (OD) of the tube being used, ensure the adapter length seats the tube bottom at the correct radial position within the rotor bore, and verify the adapter material is chemically compatible with your samples. Adapter fit is critical&mdash;a loose tube in an adapter creates imbalance and ejection risk at high speed.
Aerosol-Tight Lids and Safety Buckets
Specify aerosol-tight sealed lids for all BSL-2 or higher specimens, human blood specimens, and any sample requiring biocontainment. Inspect O-rings before each run and replace them at the first sign of flattening, cracking, or discoloration. ClickSeal-type lids and equivalent sealed bucket systems provide certified biocontainment up to the rotor's rated maximum RCF.
Lubricants and Maintenance Items
Use only OEM-specified rotor grease (silicone- or PTFE-based) on fixed-angle lid threads and swing-bucket pivot points. Apply a thin layer after each cleaning or autoclaving of swing-bucket components. Never use petroleum-based lubricants, which can degrade centrifuge rotor seals and O-rings over time.
Balance Tubes
Balance tubes (empty, capped, and filled to the same mass as the loaded sample tubes) maintain rotor balance when an odd number of samples is run. Running an unbalanced rotor induces vibration, accelerates bearing wear, and at high speed can cause catastrophic rotor failure. Most centrifuge manufacturers supply balance tubes or specify the tube format and fill volume for balancing.
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<h2>Specifications Context</h2>
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Tube adapters must be matched by outer diameter with a tolerance of &le;0.5 mm to prevent movement during spinning. Aerosol-tight rotor lids are pressure-rated; confirm the lid's burst pressure rating exceeds the maximum pressure generated by the rotor at its rated speed before using them for potentially infectious specimens.
Rotor retirement schedules are manufacturer-specified and typically based on cumulative hours at maximum rated RPM. Many aluminum rotors have retirement schedules after several thousand hours at peak speed, regardless of visible condition, because stress-corrosion fatigue is not detectable visually. As of 2026, polypropylene (PP) and HDPE rotor materials have replaced anodized aluminum in several mid-speed rotor lines, improving chemical resistance to salt solutions and acidic buffers that can cause stress corrosion in aluminum.
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at Molecular Biology Products Inc. today and find accessories that integrate perfectly with your centrifuge.

Rotor shields for 130mm tall tubes, 8/pk

C3100-130RS by Benchmark Scientific is a set of 8 rotor shields for tubes up to 130&nbsp;mm tall, designed for the Benchmark C3100 LC-8 Laboratory Centrifuge (8-position fixed-angle rotor, up to 3,500&nbsp;rpm / 1,500&nbsp;&times;&nbsp;g). They secure tall clinical sample tubes — blood collection, urine culture — in the rotor during centrifugation and protect the rotor chamber from tube breakage damage.

<h2>What are pressing dies?</h2>
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Pressing dies are the precision-machined tooling inserted into a laboratory press that define the size and shape of a pressed pellet or disc, typically consisting of a cylindrical barrel, a bottom punch or anvil, a top punch, and sometimes an evacuable port. The die determines the pellet diameter, the achievable pressure per unit area at a given press force, and the surface finish quality of the pressed pellet. Standard die sizes are 13 mm for FTIR KBr pellets and 25, 32, or 40 mm for XRF pressed powder pellets, with stainless steel for most applications and tungsten carbide for trace element work where steel contamination must be avoided.
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<h2>What you will find:</h2>
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<ul>
<li>Square Easy Retrieve Dry Pressing Die Set</li>
<li>Cylindrical Easy Retrieve Dry Pressing Die Set</li>
<li>Evacuable Pellet Die Set</li>
<li>Mini Pellet Press Die Set</li>
<li>Hydraulic Press Die Accessories</li>
<li>Pellet Pressing Die Components</li>
</ul>
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<h2>How to choose pressing dies</h2>
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Match die diameter to your analytical instrument's sample holder
The 13 mm die is standard for FTIR spectrometers where the 13 mm pellet fills the aperture of the sample holder, while XRF instruments use 25, 32, or 40 mm diameter cups depending on the specific spectrometer model and cup type. Confirming the required pellet diameter from your instrument's user manual or sample cup dimensions prevents ordering the wrong die size.
Choose evacuable dies for cleaner FTIR pellets in humid environments
An evacuable die includes a vacuum port and o-ring sealed barrel that allows the die contents to be evacuated with a vacuum pump before and during pressing, removing air and moisture from the KBr-sample mixture. This produces pellets with reduced water absorption backgrounds in the FTIR spectrum, important for trace amount analysis where water vapor bands could obscure analyte peaks.
Choose tungsten carbide (WC) dies for trace element XRF analysis
Stainless steel dies contain iron, chromium, and nickel that can contaminate pressed pellets at trace levels detectable by XRF, while tungsten carbide dies introduce only tungsten and carbon, which are not typically analytes in environmental or geological XRF work. For trace element XRF analysis, WC dies are required to avoid systematic contamination of pressed pellet surfaces from the die.
Confirm die compatibility with your press model
Die sets must be compatible with the bore dimensions and plate geometry of the specific press. Confirm that the die outer diameter matches the press die seat before purchase, since dies and presses from different manufacturers may not be interchangeable.
Maintain dies correctly to preserve pellet surface quality
Scratches or pitting on die surfaces transfer defects to pressed pellets, reducing optical quality for FTIR or surface flatness for XRF. Regular gentle cleaning and periodic polishing with fine alumina paste on punch faces maintains die surface quality.
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<h2>Specifications context</h2>
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The pressure applied to the sample equals press force divided by die area: a 10-ton press through a 13 mm die produces approximately 700 MPa, while the same force through a 40 mm die produces approximately 75 MPa. Producing the same pellet density in a larger die therefore requires proportionally more force, and a press adequate for 13 mm FTIR pellets may not deliver sufficient compaction for 40 mm XRF dies.
<a href="https://mbpinc.net/contact-us">Request a quote today from the expert team at Molecular Biology Products Inc. (MBP)</a> to find the right pressing dies for your lab.

Pressing Dies

Round Easy-Retrieve Dry Pressing Die Set Specifications

Round Easy-Retrieve Dry Pressing Die Set

Hardened steel trapezoidal split-sleeve dry pressing die set for laboratory pellet presses; available in 6, 13, 25, 40, and 50 mm internal diameters. Split-sleeve design with pellet ejector enables clean release of adhesive samples without fracture.

Manufacturer

6mm ID Round Easy-Retrieve Dry Pressing Die Set

13mm ID Round Easy-Retrieve Dry Pressing Die Set

25mm ID Round Easy-Retrieve Dry Pressing Die Set

40mm ID Round Easy-Retrieve Dry Pressing Die Set

50mm ID Round Easy-Retrieve Dry Pressing Die Set

Universal Centrifuge Accessories

<h2>What Are Universal Centrifuge Accessories?</h2>
&nbsp;
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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<ul>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Tube adapters and inserts for compatibility with multi-volume samples&nbsp;
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Fixed-angle and swing-out rotors for varied centrifugation applications
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Lids and sealed buckets for safe and reliable operations
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
PCR adapters and microplate carriers for high-throughput workflows
</li>
<li dir="ltr" style="font-family: helvetica, arial, sans-serif;" aria-level="1">
Centrifuge tubes, holders, and supporting aids for efficient and complete setups
</li>
</ul>
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<h2>How to Choose Universal Centrifuge Accessories</h2>
&nbsp;
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>
&nbsp;
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.

Round buckets for Z446-750-AC 2/pk

Z446-750-BUK by Hermle is the pack of 2 round (cylindrical) buckets for the Hermle Z446-750-AC 4 × 750 mL swing-out rotor on the Hermle Z446 and Z446K high-capacity centrifuges. Up to four buckets can be used simultaneously for a maximum run capacity of 3 L — suited for cell culture harvesting, density gradient separation, and large-volume clarification.20 (online).

PCR & qPCR Film

Sealing Mats - Accessories

DataSheet

96 Well Round well Silicone Sealing Mat, can be punctured, <=1.0 ml

96 Well Round well Silicone Sealing Mat, 2.0 ml

96 Well Round well Silicone Sealing Mat, pre-slit, 2.0 ml

Round well Silicone Sealing Mat

Nest Scientific 506005 — 96-well round-well pre-slit silicone sealing mat, 7 mm well diameter, fits 0.35–1.35 mL deep well plates, non-sterile, 10 per pack, 50 per case.

96 Well Round well Silicone Sealing Mat, pre-slit, <=1.0 ml, non-sterile, 10/pk, 50/cs

96 Well Round well Silicone Sealing Mat, 2.0 ml, non-sterile, 10/pk, 50/cs

96 Well Round well Silicone Sealing Mat, pre-slit, 2.0 ml, non-sterile, 10/pk, 50/cs

96 Well Round well Silicone Sealing Mat, pre-slit, 1.0 ml, Sterile, 10/pk, 50/cs

96 Well Round well Silicone Sealing Mat, 2.0 ml, Sterile, 10/pk, 50/cs

Rubber gasket for 10ml tubes, 8/pk

C3100-RG by Benchmark Scientific is a pack of 8 replacement rubber gaskets for 10 ml tube positions in the LC-8 C3100 centrifuge rotor. These gaskets maintain secure tube seating, reduce vibration, and protect the rotor body during spins up to 3,500 rpm / 1,500 xg.

<h2 dir="ltr"> What Are Lentiviral Purification &amp; Packaging Kits?</h2>
 Producing high-quality lentiviral stocks is a prerequisite for reproducible transduction experiments. Low-titer or impure virus preparations reduce transduction efficiency, introduce toxicity from residual cell debris, and compromise experimental reproducibility. Purification and packaging kits address every step from plasmid transfection through virus harvest and concentration. Vector production quality depends on efficient purification and packaging workflows. Choose the kit designed for your system.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
2nd and 3rd Generation Lentivirus Bundles combining transduction enhancers, transfection reagents, packaging mix, titer kits for complete workflows
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
2nd and 3rd Generation Packaging System Mix for standardized viral production workflows
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
DNAfectin&trade; Plus and Packaging Mix systems for enhanced transfection workflows
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
Lentivirus Promoter Blast&trade; Kit for lentiviral expression studies driven by promoters
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
SARS-CoV-2 S Protein Pseudotype Lentiviral Packaging Mix for pseudovirus-based research applications
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
Ultra-Pure Lentivirus Purification Kit for viral cleanup and concentration
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
ViralEntry&trade; Transduction Enhancer for improved transduction
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
qPCR Lentivirus Titer Kit &amp; ViralEntry&trade; Bundle for optimized transduction workflows and&nbsp; viral quantification&nbsp;
</li>
</ul>
<h2 dir="ltr"> How to Choose a Purification &amp; Packaging Kit</h2>
 Concentration Method Available PEG precipitation kits work with a standard benchtop centrifuge, producing 10&ndash;100-fold concentration &mdash; the most accessible method for labs without ultracentrifuges. Ultrafiltration (100 kDa cutoff) offers high recovery (&gt;80%) while removing small molecules and unincorporated VSV-G. Ultracentrifugation provides the highest concentration (up to 1000&times;) but requires specialised equipment. Packaging Plasmid Generation 3rd generation systems (pMDLg/pRRE + pRSV-Rev + pVSV-G) split packaging elements across three plasmids and eliminate Tat for biosafety. 2nd generation systems use a single packaging plasmid + pVSV-G; some transfer vectors with RSV promoters produce lower titers with 3rd generation packaging unless using CMV-promoter variants (pLKO.1C). Starting Volume Scale Ultrafiltration units are compatible with both small-scale (&le;20 mL) and large-scale (up to 1 L) starting volumes using appropriately sized membranes. Plasmid Transfection Ratio For 3rd generation packaging, a 4:2:1:1 ratio of transfer vector:pMDLg/pRRE:pVSV-G:pRSV-Rev has been validated to maximise titer, with 20 &micro;g transfer vector per 15 cm dish as a standard starting point. Titer Assessment Method p24 ELISA measures total viral particle content; functional transduction assays (GFP or antibiotic selection) measure infectious titer; qPCR-based RNA titration measures packaged RNA copies. Functional titer is most relevant for transduction experiments. 
<h2 dir="ltr"> Specifications Context</h2>
 Lentiviral concentration workflows commonly combine PEG precipitation, ultrafiltration, or density-gradient methods to increase viral titer without requiring ultracentrifugation. Ultrafiltration systems using 100 kDa membranes efficiently retain lentiviral particles (approximately 80&ndash;120 nm) while removing smaller contaminants and free proteins. Following concentration, viral stocks are typically aliquoted into single-use volumes and stored at &minus;80 &deg;C because infectivity decreases with repeated freeze&ndash;thaw cycles and prolonged storage above freezing temperatures. Modern 2nd- and 3rd-generation packaging systems separate essential viral functions across multiple plasmids, including a dedicated VSV-G envelope plasmid, to support safer lentiviral production workflows. Product availability reflects MBP's catalogue as of mid-2026. 
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP Inc. and get reliable lentiviral purification and packaging kits for your lab today.

Purfication & Packaging Kits

Selection-Drug Killing Curve

Lentivector Packaging Protocol

Lentivirus Infection Protocol

Enhanced Lentivirus Safety Features-Replication Incompetency

Suggested MOI for Common Cancer Cell Lines

Lentiviral System FAQ

SARS-CoV-2 S Protein Pseudotype Lentiviral Packaging Mix

LV700 by Applied Biological Materials is a SARS-CoV-2 Spike protein pseudotype lentiviral packaging mix for producing ACE2-tropic, BSL-2-safe non-replicating pseudoviral particles. For spike-specific neutralization assays, entry inhibitor screening, and ACE2/TMPRSS2 entry studies. Store at −20°C or below.

Unit Quantity

Note

Shipping Condition

<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

SB216763

SB216763 G607 — selective GSK-3 inhibitor, ≥98% purity (NMR &amp; MS verified), 5.0 mg solid. MW 371 g/mol, formula C₁₉H₁₂Cl₂N₂O₂. Aids stem cell self-renewal and Wnt pathway activation. Stable 2 years. Store at −20 °C.

Purity

Storage Condition

Caution

Shipping condition

Filtration Centrifuge

<h2>What Are Filtration Centrifuges?</h2>
&nbsp;
Filtration centrifuges, also called centrifugal filters, spin concentrators, or centrifugal ultrafiltration devices, are two-part filter units placed inside a standard benchtop centrifuge or microcentrifuge. They consist of an upper reservoir containing an ultrafiltration membrane and a lower filtrate collection tube. During centrifugation, solvent, salts, and small molecules pass through the membrane while proteins, antibodies, nucleic acids, and other larger biomolecules are retained and concentrated in the upper chamber. These devices support concentration factors of 25- to 80-fold or more in a single spin and are available with molecular weight cut-off (MWCO) options ranging from 2 kDa to 300 kDa. Common membrane materials include regenerated cellulose (RC) for low protein binding and broad chemical compatibility, and polyethersulfone (PES) for faster filtration rates.
&nbsp;
<h2>What You Will Find:</h2>
&nbsp;
<ul>
<li><a href="https://mbpinc.net/equipments/centrifuges/filtration-centrifuge/accessories">Filtration Centrifuge Accessories:</a> Include filter materials with different pore sizes and perforated and non-perforated baskets. These tools allow efficient and controlled separation of particles.</li>
</ul>
&nbsp;
<h2>How to Choose a Filtration Centrifuge Device</h2>
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MWCO Selection
The molecular weight cut-off determines which molecules are retained during centrifugation. A general guideline is to select an MWCO that is three to six times lower than the molecular weight of the target molecule. This approach helps maximize retention while maintaining efficient filtration performance.
Sample Volume and Device Format
Choose a filtration device that matches or slightly exceeds your starting sample volume. Small-volume devices accommodate hundreds of microliters, while larger formats support up to 20 mL for preparative and bioprocessing applications.
Membrane Material
Regenerated cellulose membranes provide minimal non-specific protein binding and broad pH compatibility, making them suitable for sensitive protein samples. Polyethersulfone membranes offer faster flow rates and are often preferred for viscous solutions and higher-concentration preparations.
Centrifuge and Rotor Compatibility
Ensure that the selected device fits the available rotor format and operates within the recommended centrifugal force range. Small devices fit standard microcentrifuge rotors, while larger filtration units may require 15 mL or 50 mL conical tube rotors.
Reverse-Spin Recovery
Many centrifugal filtration systems include a reverse-spin recovery step that helps maximize sample retrieval from the membrane surface. This technique is particularly valuable when working with dilute samples or low-abundance biomolecules.
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<h2>Specifications Context</h2>
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Most centrifugal ultrafiltration devices operate within a range of 3,000&ndash;5,000 &times;g. Exceeding the recommended force limits may damage the membrane or reduce sample recovery. Processing times vary depending on sample volume, concentration requirements, and membrane characteristics.
Modern regenerated cellulose membranes provide excellent protein recovery with minimal adsorption, while newer PES-based systems offer improved flow rates for demanding laboratory applications. These technologies continue to support life science, biotechnology, and pharmaceutical workflows requiring reliable concentration and buffer-exchange performance.
Don't miss your chance to get the right filtration centrifuge for your lab. <a href="https://mbpinc.net/contact-us">Contact the expert team</a> at Molecular Biology Products Inc. and get yours today.

Product Literature

 Hermle Benchmark SIEVA III Filtration Centrifuge

SIEVA-3 Filtration Centrifuge

The Z600-S3 by Hermle is the SIEVA-3 Filtration Centrifuge, reaching 10,000 rpm / 7,825 × g with a speed range of 200–10,000 rpm. Designed for cake filtration, OLEUM oil testing, and sample clarification, it features a maintenance-free induction drive, stainless steel construction, transparent lid, and 5-year warranty. Filtration baskets sold separately; available in 120V and 230V.