Brands

<h2>What Are Spin-Column Total RNA Kits?</h2>
&nbsp;
Spin-column total RNA kits are the most widely used format for manual RNA purification in molecular biology laboratories. The technology relies on silica membrane chemistry: under chaotropic (guanidinium-based) lysis conditions, RNA adsorbs selectively to the silica membrane of the column; sequential ethanol-based wash steps remove proteins, salts, and gDNA fragments; and a low-ionic-strength buffer or RNase-free water then releases the purified RNA. Standard mini-format kits accept cell or tissue lysate from inputs of 1x10^4-1x10^7 cells or 5-100 mg tissue, bind up to 100 ug RNA, and complete the protocol in 15-30 minutes. The eluted RNA is suitable for RT-PCR, qRT-PCR, RNA sequencing, Northern blot, and hybridization without additional cleanup.&nbsp;Spin-column RNA kits are the default choice for 1-24 samples per run in any lab that does not require automated magnetic-bead processing.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Quick-RNA Microprep and Miniprep Kits for low-volume elution and highly concentrated recovery, providing ultra-clean and phenol-free transcript isolation
</li>
<li dir="ltr" aria-level="1">
Direct-zol&trade; RNA Kits to bypass tedious phase separation steps, allowing researchers to pump TRIzol-lysed samples directly into spin-columns&nbsp;
</li>
<li dir="ltr" aria-level="1">
Direct-zol&trade; DNA/RNA Parallel Modules are engineered for the non-destructive, simultaneous isolation of DNA and RNA fractions.
</li>
<li dir="ltr" aria-level="1">
ZymoBIOMICS&trade; RNA Mini Kits for uniform microbial profiling featuring host-zeroing lysis mechanics
</li>
<li dir="ltr" aria-level="1">
Quick-RNA&trade; Midiprep Assemblies to capture larger quantities of high-purity total transcripts efficiently, tailored for bulk processing&nbsp;
</li>
</ul>
&nbsp;
<h2>How to Choose Spin-Column Total RNA Kits</h2>
&nbsp;
Column Binding Capacity and Elution Volume
Mini-format columns bind up to 100 ug total RNA and elute in 10-100 uL. For samples with very low RNA content (needle biopsies, laser-capture microdissection sections, small cell numbers &lt;=10^4), choose micro-format columns with 8-12 uL minimum elution volume to maximize concentration. Eluting in &lt;30 uL with high RNA concentration increases sensitivity in downstream RT-qPCR.
Small RNA Retention
This is the most important differentiator between kit brands. Kits using Zymo-Spin column technology with proprietary binding buffers retain miRNA and small RNA species &gt;=17 nt in the total RNA fraction. Competing kits using standard high-ethanol wash chemistry typically lose RNA &lt;200 nt in the wash steps. If your workflow includes small RNA profiling, miRNA RT-qPCR, or small RNA-seq, verify that the kit retains &gt;=17 nt RNA before purchasing.
On-Column DNase Treatment
Included RNase-free DNase I that degrades gDNA on the column during the wash stage eliminates the need for post-elution DNase treatment. This matters for RT-qPCR with primers spanning a small intron, or for RNA-seq where even trace gDNA contamination generates false mapping reads. DNase-treated RNA typically passes a no-RT PCR control at Ct &gt;35.
Sample Type: Cells vs Tissue
Cell lysis buffer volumes and homogenization requirements differ by sample type. Cultured cells lyse directly in lysis buffer with vortexing; tissue samples require homogenization to disrupt cell structure before contact with the lysis buffer. For fibrous tissues (muscle, heart), use a bead-mill homogenizer or rotor-stator; for soft tissues (liver, brain), a disposable pestle or needle shearing is sufficient. Some kits include TissueLyser-compatible bead tubes or QIAshredder-equivalent homogenizer columns.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Spin-column total RNA purity targets: A260/A280 ratio 1.8-2.1; A260/A230 ratio &gt;1.8. RNA integrity number (RIN) from fresh cultured cells or snap-frozen tissue is routinely 8-10 with validated kits. Zymo Research Quick-RNA Mini and Miniprep kits are among the most cited spin-column RNA isolation kits in published RT-PCR and RNA-seq methods; ABM RNA extraction kits offer validated protocols for bacteria, yeast, and fungi not covered by many standard cell/tissue kits. All kits supplied by MBP are Research Use Only (RUO).
<section class="mbp-contact-cta">
&nbsp;
MBP's specialist team can help match kit chemistry, format, and throughput to your sample type and downstream application.&nbsp;<a href="https://mbpinc.net/contact-us">Contact the MBP team</a> for personalized guidance.
</section>

Spin-column

MSDS

DataSheet

Protocol

Direct-zol™ RNA MiniPrep

Direct-zol™ RNA MiniPrep by Zymo Research. 50 µg binding capacity. Elution ≥25 µl. RNA ≥17 nt. 7-minute protocol. Purify total RNA directly from TRI Reagent without phase separation. Available formats: R2051 (50 preps + TRI Reagent), R2051-A (50 preps, alternate TRI bundle), R2050-1-50 (TRI Reagent 50 ml), R2052 (200 preps), R2053 (200 preps + TRI Reagent), R2053-A (200 preps, alternate TRI bundle), R2050-1-200 (TRI Reagent 200 ml).

Compatibility

Equipment

Sample Inactivation

Sample Source

Size Range

Yield

Manufacturer

Shipping Condition

Storage Condition

Direct-zol™ RNA MiniPrep w/TRI Reagent® (50 Preps.) R2051-A and R2050-1-50

Direct-zol™ RNA MiniPrep (200 Preps.)

Direct-zol™ RNA MiniPrep w/TRI Reagent® (200 Preps.) R2053-A and R2050-1-200

<h2>What Are Zymo Research Buffers?</h2>
Zymo Research buffers are formulation-specific reagents used at defined steps &mdash; lysis, binding, wash, and elution &mdash; in Zymo-Spin column-based purification protocols for DNA, RNA, and bisulfite-converted DNA. Each buffer is optimized for a specific kit family: DNA Wash Buffer concentrate (requires ethanol addition before use) removes salts and contaminants before elution from Zymo-Spin silica columns; DNA Elution Buffer (10 mM Tris, pH 8.5, 0.1 mM EDTA) releases purified DNA from the matrix; RNA Wash Buffer supports RNA extraction kits including Quick-RNA and Direct-zol lines; M-Elution Buffer is designed for eluting bisulfite-converted DNA in EZ DNA Methylation kits. Researchers typically order these separately when a single buffer component runs out before the rest of the kit, or when scaling up a protocol beyond the volume included.
TL;DR: Order Zymo buffers individually to replenish a specific step in your existing Zymo workflow without replacing the full kit.
<h2>How to Choose Zymo Research Buffers</h2>
<h3>Match the buffer to your kit family</h3>
Every Zymo buffer is paired to a specific kit line. DNA Wash Buffer and DNA/RNA Wash Buffer concentrate are used in DNA Clean &amp; Concentrator, Quick-DNA, and Zymoclean Gel DNA Recovery kits. RNA Wash Buffer pairs with Quick-RNA kits. ZymoBIOMICS DNA Wash Buffer 1 and Wash Buffer 2 are specific to the ZymoBIOMICS microbiomics line. Substituting a buffer from a different kit family can compromise yield or purity.
<h3>Confirm ethanol addition requirements before use</h3>
Several Zymo wash buffer concentrates require addition of 96-100% ethanol to the bottle before first use &mdash; the label states the exact volume. DNA Wash Buffer concentrate, DNA/RNA Wash Buffer concentrate, and Urine DNA Wash Buffer concentrate all require this step. Pre-made (non-concentrate) versions such as RNA Wash Buffer are supplied ready to use.
<h3>Select the right volume for your throughput</h3>
Zymo buffers are available in sizes from 6 ml (single-experiment replenishment) up to 500 ml (Buffer P1 Red, for high-volume plasmid prep labs). For labs processing more than 50 samples per week, ordering the largest available size reduces per-sample cost and the frequency of reordering.
<h3>Choose elution buffer chemistry based on downstream application</h3>
DNA Elution Buffer (10 mM Tris pH 8.5, 0.1 mM EDTA) is the standard for most PCR and sequencing applications. For applications sensitive to EDTA &mdash; such as some restriction enzyme digests or direct use with divalent cation-dependent enzymes &mdash; eluting in molecular-grade water or a Tris-only buffer is preferable. M-Elution Buffer is specifically formulated for bisulfite-converted DNA and should not be substituted with standard elution buffer in methylation workflows.
<h3>Verify research-use-only status</h3>
All Zymo Research buffers sold through MBP are for research use only (RUO). They are not cleared for in vitro diagnostic use. For clinical or diagnostic laboratory applications, confirm regulatory status with your institutional compliance officer before use.
<h2>Compare Zymo Buffer Types</h2>
<table>
<thead>
<tr>
<th>Buffer Type</th>
<th>Primary Application</th>
<th>Kit Family</th>
<th>Format Available</th>
</tr>
</thead>
<tbody>
<tr>
<td>DNA Wash Buffer (concentrate)</td>
<td>Salt removal before DNA elution</td>
<td>DNA Clean &amp; Concentrator, Quick-DNA</td>
<td>6 ml &ndash; 200 ml</td>
</tr>
<tr>
<td>DNA/RNA Wash Buffer (concentrate)</td>
<td>Salt removal for dual DNA/RNA preps</td>
<td>Quick-DNA/RNA kits</td>
<td>6 ml &ndash; 200 ml</td>
</tr>
<tr>
<td>DNA Elution Buffer (10 mM Tris pH 8.5, 0.1 mM EDTA)</td>
<td>DNA release from silica column</td>
<td>All Zymo DNA purification</td>
<td>16 ml &ndash; available sizes vary</td>
</tr>
<tr>
<td>RNA Wash Buffer</td>
<td>RNA purification wash step</td>
<td>Quick-RNA kits</td>
<td>Ready-to-use</td>
</tr>
<tr>
<td>M-Elution Buffer</td>
<td>Elution of bisulfite-converted DNA</td>
<td>EZ DNA Methylation kit families</td>
<td>Small volume</td>
</tr>
<tr>
<td>ZymoBIOMICS DNA Wash Buffer 2</td>
<td>Metagenomic/microbiomic DNA cleanup</td>
<td>ZymoBIOMICS DNA kits</td>
<td>Sold separately</td>
</tr>
<tr>
<td>Buffer P1 Red</td>
<td>Alkaline lysis resuspension (plasmid prep)</td>
<td>Zyppy Plasmid Miniprep</td>
<td>10 ml &ndash; 500 ml</td>
</tr>
</tbody>
</table>
<h2>Specifications Context</h2>
Zymo wash buffer concentrates are supplied at a defined fold-concentration (commonly 4x or 6x) and require ethanol addition to reach working strength &mdash; the exact ratio is printed on the bottle and in the kit protocol. Elution buffer volumes for Zymo-Spin columns typically range from 6 to 100 &micro;l per elution; larger elution volumes improve total yield at the cost of DNA concentration. For DNA elution from Zymo-Spin columns, the protocol recommends a minimum 1-minute contact time between elution buffer and the silica matrix to maximize recovery of fragments 10 kb and above. As of 2025, Zymo Research tests all buffer lots for performance consistency, with integrity guaranteed for up to one year from purchase date.
Browse the full <a href="https://www.notion.so/reagents">Zymo Research reagents collection at MBP</a> for kits and columns that use these buffers, or visit our <a href="https://www.notion.so/reagents/buffers">reagent buffers category</a> for non-Zymo buffer options including ABM and other brands. For volume orders or purchase orders, use the <a href="https://www.notion.so/quickorder">Quick Order</a> tool or <a href="https://www.notion.so/contact-us">contact us</a> directly &mdash; MBP is a registered vendor for institutional procurement systems.
Last updated: June 2025
&nbsp;

Zymo Buffers

Direct-zol™ RNA PreWash (Concentrate)

Direct-zol™ RNA PreWash Concentrate R2050-2-160 by Zymo Research — 160 ml, room-temperature stable wash buffer for all Direct-zol RNA column-based kits. Removes TRI Reagent and phenol carryover from silica columns during RNA purification. Concentrate: requires preparation per kit protocol before first use. Also available in 40 ml (R2050-2-40). Order via <a href="https://www.mbpinc.net/quickorder">Quick Order</a> or <a href="mailto:customerservice@mbpinc.net">customerservice@mbpinc.net</a>.

Direct-zol™ RNA PreWash (Concentrate) (160 ml)

Direct-zol™ RNA PreWash (Concentrate) (40 ml)

Funnels

<h2>What Are Laboratory Weighing Funnels?</h2>
&nbsp;
Laboratory weighing funnels are single-use antistatic polypropylene (PP) funnels specifically designed for the weighing-and-transfer step in analytical chemistry, pharmaceutical weighing, and sample preparation workflows. Unlike standard powder funnels, weighing funnels have one flat side that allows the funnel to rest stable on a balance pan during mass measurement, and a conical stem sized to the neck of a specific volumetric flask volume. After the sample mass is recorded, the funnel inserts directly into the flask neck, and the sample is transferred by tipping or rinsing&mdash;providing quantitative, loss-free transfer into narrow-neck vessels. Available in extra small (fits microtubes and 5&ndash;20 mL flasks) through extra-extra-large (fits 1000 mL+ vessels). Antistatic weighing funnels are single-use; washing removes the antistatic treatment. Reusable funnels needing autoclave sterilization should be standard polypropylene powder funnels, not antistatic weighing funnels.
&nbsp;
<h2>What you will find:</h2>
&nbsp;
<ul>
<li>Powder funnels with wide stems for smooth solid transfer</li>
<li>Long-stem funnels for controlled pouring into narrow containers</li>
<li>Short-stem funnels for faster liquid transfer</li>
<li>Filter funnels for use with standard filter paper</li>
<li>Chemical-resistant plastic funnels for lab compatibility</li>
<li>Disposable funnels for single-use workflows</li>
</ul>
&nbsp;
<h2>How to Choose Laboratory Weighing Funnels</h2>
&nbsp;
Match Size to Flask Neck
The critical specification for a weighing funnel is the stem outer diameter relative to the flask neck inner diameter. Extra small fits 96-well microtubes and 5&ndash;20 mL volumetric flasks; small fits 20&ndash;50 mL; medium fits 50&ndash;200 mL; large fits 200&ndash;500 mL; extra large fits 500&ndash;1000 mL. A funnel that is too wide will not insert and will spill during transfer&mdash;when in doubt, choose one size smaller.
Disposable Antistatic vs. Reusable PP
For analytical weighing of fine powders, use disposable antistatic PP funnels&mdash;the antistatic surface dissipates charge that causes powder adhesion. For bulk transfer of coarse materials or liquids where static is not an issue, standard reusable polypropylene powder funnels (autoclavable at 121&deg;C, large-bore stem) are more economical and can be sterilized between uses.
Assorted vs. Individual Packs
Assorted packs covering extra small through extra large provide flexibility when flask sizes vary across experiments and reduce the number of individual SKUs to manage. Individual packs are more economical when only one funnel size is used at high volume.
Flat-Side Stability
All antistatic weighing funnels have one flat side on the funnel body. This flat face allows the funnel to rest stably on a balance pan without rolling during the weighing step before transfer&mdash;a design feature absent on standard laboratory funnels.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Antistatic polypropylene weighing funnels achieve antistatic performance through a surface additive incorporated during molding; this is a surface treatment rather than a bulk polymer property. The flat side is designed to rest on a balance pan while keeping the stem vertical for direct transfer into volumetric flasks. As of 2026, these funnels are standard in pharmaceutical QC and analytical chemistry labs for gravimetric transfer workflows compliant with USP procedures. Explore weighing dishes and funnels category for related consumables.
Pick the size that fits your work&mdash;and everything else gets a lot easier.&nbsp;<a href="https://mbpinc.net/consumables/tubes-and-sample-collection/funnels" title="Contact the MBP Team">Contact the MBP Team</a> today.

8301-Group-Laboratory Essentials

Disposable Funnels Specifications

Disposable Funnels

8301 by Globe Scientific is a single-use transparent polystyrene funnel with a 55 mm top inner diameter, 60° taper angle, reinforced rim, and inside fluting — fits 11 cm filter papers. Height 69 mm, stem 25 mm × 4.3 mm opening. Ships 100 per box (25/sleeve × 4 sleeves). Polypropylene variant available as SKU 8303.

Manufacture

Funnel, 55mm, PS (uses 11cm filter paper), 600/CS

Funnel, 65mm, PS (uses 12.5cm filter paper), 600/CS

Funnel, 55mm, PP (uses 11cm filter paper), 600/CS

Funnel, 65mm, PP (uses 12.5cm filter paper), 600/CS

Shoe Covers

<h2 data-section-id="jov9my" data-start="0" data-end="35">What Are Laboratory Shoe Covers?</h2>
&nbsp;
Laboratory shoe covers are disposable protective overshoes worn over regular footwear before entering laboratories, cleanrooms, pharmaceutical facilities, healthcare environments, and other controlled spaces. Their primary purpose is to prevent dirt, dust, microorganisms, and contaminants from being transferred into sensitive work areas through shoe soles while also protecting personnel footwear from exposure to chemicals, biological materials, and floor contaminants.
Most laboratory shoe covers are manufactured from non-woven polypropylene (PP), which provides lightweight particulate protection and low lint generation. Specialized options such as SMS, PE-coated polypropylene, CPE, and Tyvek&reg; offer additional protection against liquids, aerosols, and chemical splashes for more demanding applications.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Disposable polypropylene shoe covers for general lab use
</li>
<li dir="ltr" aria-level="1">
Non-skid shoe covers for improved floor safety
</li>
<li dir="ltr" aria-level="1">
Elastic-edge shoe covers for secure universal fit
</li>
<li dir="ltr" aria-level="1">
Cleanroom-compatible shoe covers for controlled environments
</li>
<li dir="ltr" aria-level="1">
Water-resistant shoe covers for added protection
</li>
<li dir="ltr" aria-level="1">
Lightweight breathable shoe covers for long wear comfort
</li>
<li dir="ltr" aria-level="1">
Anti-slip sole shoe covers for stability in lab areas
</li>
<li dir="ltr" aria-level="1">
Universal-size shoe covers for easy bulk use
</li>
<li dir="ltr" aria-level="1">
Low-lint contamination-control shoe covers for sterile workflows
</li>
</ul>
&nbsp;
<h2 data-section-id="1czudfj" data-start="1053" data-end="1092">How to Choose Laboratory Shoe Covers</h2>
&nbsp;
Material Spunbond polypropylene (28&ndash;40 gsm) is lightweight, breathable, and provides general particulate barrier for most research and pharmaceutical lab environments. PE-coated PP or CPE (chlorinated polyethylene) provides waterproof liquid resistance for wet benches, chemical spill environments, and animal facilities. SMS fabric (spunbond-meltblown-spunbond) adds aerosol and droplet barrier performance for pharmaceutical cleanrooms and clinical diagnostic labs. Tyvek shoe covers provide the highest durability and chemical splash protection for hazardous material handling. &nbsp; Non-skid sole Non-skid shoe covers feature anti-skid latex tread sprayed to the bottom sole, providing traction on smooth lab floor surfaces &mdash; polished concrete, vinyl tile, and epoxy-coated floors common in cleanrooms and pharmaceutical facilities. Non-skid covers are standard for any environment where wet floor conditions or smooth surfaces create slip risk. Plain covers are appropriate for brief-wear or dry rough-floor environments only. &nbsp; ISO cleanroom rating General-purpose PP shoe covers manufactured in ISO-accredited facilities with lot-number traceability are rated for ISO 7 (Class 10,000) environments. Critical-environment cleanroom covers with lint-free laminated fabric, bonded seams, and documented particle counts are available for ISO 5&ndash;6 (Class 100&ndash;1,000) environments. Confirm the product's documented ISO rating when sourcing for GMP-regulated or validated cleanroom environments. &nbsp; Case quantity and floor stock Standard PP shoe cover cases hold 300 pieces (150 pairs) or 600 pieces (300 pairs). Match case size to daily consumption: a 10-person lab with two cover changes per day uses approximately 20 pairs/day, or one 300-piece case per 15 working days. Bulk case ordering through MBP's Quick Order tool simplifies floor stock management and PO-based replenishment. &nbsp; Latex-free elastic cuffs Quality-tier shoe covers use latex-free elastic ankle cuffs &mdash; confirm latex-free elastic specification for environments with latex allergy protocols. All PP, CPE, and SMS upper materials are inherently latex-free.
&nbsp;
<h2 data-section-id="1jl751w" data-start="4537" data-end="4562">Specifications Context</h2>
&nbsp;
Laboratory shoe covers are commonly manufactured from low-lint, non-woven materials that support contamination-control programs in research, pharmaceutical, biotechnology, and healthcare facilities. Many cleanroom-grade products are produced in ISO-certified manufacturing environments with lot traceability for quality assurance and regulatory compliance.
Step into cleaner workflows&mdash;choose MBP shoe covers that keep every entry controlled and every surface protected.&nbsp; <a href="https://mbpinc.net/contact-us" style="color: #236fa1;">Contact us for a quick quote</a>.

Disposable PP non-woven shoe covers, 100/pk, 500/cs

923001 by MBP Inc. are disposable polypropylene non-woven shoe covers for cleanrooms, pharmaceutical facilities, hospitals, and electronics manufacturing. PP non-woven fabric provides a low-lint particle barrier to prevent shoe-borne contamination. Supplied 100/pk, 500/cs.

<h2 data-section-id="1go10h8" data-start="173" data-end="215">What are classic cell culture media?</h2>
&nbsp;
Classic cell culture media refers to the foundational basal medium formulations that have underpinned mammalian cell culture since the mid-20th century: DMEM (Dulbecco's Modified Eagle Medium), MEM (Minimum Essential Medium), RPMI 1640, Ham's Nutrient Mixtures F-10 and F-12, IMDM (Iscove's Modified Dulbecco's Medium), and the combination formulation DMEM/F-12. Each is manufactured according to its originally published formula, with modifications limited to those necessary for consistent performance and stability of the medium over its shelf life. These media supply the amino acids, vitamins, glucose, salts, and (in most formulations) phenol red pH indicator that form the nutritional backbone of essentially all subsequent specialty, serum-free, and Advanced media derivatives.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Selective Mammalian Antibiotics including Puromycin, Geneticin, and Hygromycin B for stable development of cell lines.</li>
<li dir="ltr" role="presentation">Broad-Spectrum Bactericidal Agents for routine contamination prevention, including Penicillin/Streptomycin and Gentamicin&nbsp;</li>
<li dir="ltr" role="presentation">Prokaryotic Selection Reagents for effective bacterial transformation, including Ampicillin, Kanamycin, Chloramphenicol, and Tetracycline&nbsp;</li>
<li dir="ltr" role="presentation">Antifungal and Antimycotic Solutions to maintain sterile cultures, including combined 100X cocktails and Amphotericin B (Fungizone)&nbsp;</li>
<li dir="ltr" role="presentation">Specialized Small Molecules for targeted biochemical assays, including Ganciclovir, Rapamycin, and Actinomycin D&nbsp;</li>
</ul>
&nbsp;
<h2 data-section-id="1mfajxk" data-start="1218" data-end="1252">How to choose a classic medium</h2>
&nbsp;
DMEM vs MEM
DMEM contains up to four times the amino acid and vitamin concentration of original Eagle's MEM, along with higher glucose levels, making it suitable for cell types with elevated nutrient demands &mdash; DMEM is broadly applicable across mammalian, insect, and plant cell phenotypes including primary cells, stem cells, and transformed lines. MEM remains widely used for monolayer culture of many standard cell types, with optional Hanks' or Earle's salt formulations and a calcium-free modification that permits suspension growth.
RPMI 1640 for suspension and hematopoietic culture
RPMI 1640, developed at the Roswell Park Memorial Institute for culturing human leukemic cells, is optimized for non-adherent cell types &mdash; lymphocytes and other blood cells &mdash; and contains glutathione plus higher biotin, B12, and PABA concentrations than DMEM or MEM. Despite its hematopoietic origin, RPMI 1640 supports a broad range of adherent lines (HeLa, T47D, RENCA, CT26.WT) when properly supplemented.
Ham's F-10/F-12 for CHO and specialized applications
Ham's nutrient mixtures were originally developed for CHO cell clones, HeLa cells, and mouse L-cells, and remain suited to hepatocyte culture, viral fusion experiments, and toxicity assays, with formulations available for use with or without serum. Coon's modification of Ham's F-12 roughly doubles the amino acid and pyruvate content and adds ascorbic acid, developed specifically for hybrid cells produced by viral fusion.
DMEM/F-12 for complex, rich-medium applications
DMEM/F-12 (1:1 mixture) combines DMEM's glucose, amino acid, and vitamin richness with Ham's F-12's zinc, putrescine, hypoxanthine, and thymidine, producing an extremely rich complex medium used for MDCK cells, glial cells, fibroblasts, and human endothelial cells &mdash; and serving as the basal medium for many serum-free Advanced formulations used in organoid and stem cell work.
IMDM for high-density rapid proliferation
IMDM further enriches DMEM with additional amino acids and vitamins, substituting potassium nitrate for ferric nitrate and adding HEPES and sodium pyruvate. IMDM's sodium bicarbonate buffer system (5&ndash;10% CO₂) and enriched composition make it well suited for rapidly proliferating, high-density cultures including Jurkat, COS-7, and macrophage cells.
Liquid vs. powder format
Liquid classic media are ready to use (after appropriate FBS and supplement addition) and include sodium bicarbonate in the formulation. Powdered media are manufactured without sodium bicarbonate, since it tends to off-gas in powder form &mdash; 3.7 g/L sodium bicarbonate must be added upon reconstitution, followed by sterile filtration. Powder formats offer cost and shipping-weight advantages for high-volume labs preparing their own media.
&nbsp;
<h2 data-section-id="17i0pj" data-start="5035" data-end="5061">Specifications context</h2>
&nbsp;
Classic media are manufactured according to originally published formulas, with stability-related modifications documented per product. DMEM's sodium bicarbonate buffer system at 3.7 g/L is standard across liquid formulations; powdered formats require this addition upon reconstitution along with 0.22 &micro;m sterile filtration. As of 2026, DMEM, DMEM/F-12, and RPMI 1640 remain the three most widely specified classic media across academic and biomanufacturing labs, with IMDM increasingly used for high-density suspension applications in bioprocessing.
For recombinant growth factors and cytokines used alongside classic media, see Recombinant Proteins. For supplementation reagents (GlutaMAX, NEAA, sodium pyruvate, HEPES), see Cell Culture Supplements &amp; Additives. Browse Mammalian Cell Culture for the broader category.
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP to get highly efficient microbial control solutions for your lab.

Antibiotics

Doxycycline

Unit Quantity

Concentration

Shipping condition

<h2>What Are Restriction Enzymes?</h2>
&nbsp;
Restriction enzymes are endonucleases originally isolated from bacteria, where they function as a primitive immune defense against foreign DNA (such as bacteriophages) by cleaving at specific recognition sequences. Over 3,500 Type II restriction enzymes have been characterized, recognizing palindromic or asymmetric sequences of 4-8 base pairs and generating either 5' overhangs (sticky ends), 3' overhangs, or blunt ends. The systematic naming convention reflects enzyme origin: EcoRI comes from Escherichia coli strain R; HindIII from Haemophilus influenzae strain Rd. Restriction enzymes are grouped into Types I, II, III, and IV based on cofactor requirements, cleavage site position, and structural complexity; Type II enzymes are almost exclusively used in research applications due to their defined cleavage positions. Choose restriction enzymes based on the recognition sequence present in your target, the end type required (sticky vs. blunt), and whether Golden Gate Assembly or conventional cloning is planned.
<h2 dir="ltr">&nbsp;</h2>
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
Enterokinase Cleavage Enzyme: A specific mammalian-produced protease for precise affinity tag removal from recombinant fusion proteins.
</li>
<li dir="ltr" aria-level="1">
DpnI: A specialized enzyme targeting methylated GATC sequences, ideal for template digestion in site-directed mutagenesis.
</li>
<li dir="ltr" aria-level="1">
Tn5 Transposase for Tagmentation: A high-efficiency enzyme for simultaneous DNA fragmentation and adapter ligation in NGS library construction.
</li>
</ul>
&nbsp;
<h2>How to Choose Restriction Enzymes</h2>
&nbsp;
Type IIP vs. Type IIS
Type IIP enzymes (EcoRI, HindIII, BamHI, NcoI, NheI) recognize palindromic sequences and cut within or immediately adjacent to the site, making them the standard choice for conventional restriction cloning using compatible cohesive ends. Type IIS enzymes (BsaI, BsmBI/Esp3I, SapI) cut at a fixed distance outside their recognition sequence, generating custom 4-nt overhangs that can be designed to create any desired sequence at the assembly junction -- the basis of Golden Gate Assembly, which allows ordered multi-fragment cloning in a single tube.
Recognition sequence frequency
4-cutter enzymes (MboI, AluI, TaqI) cut on average every 256 bp and are used for genome-wide restriction mapping or chromatin fragmentation. 6-cutters (EcoRI, HindIII) cut every ~4,000 bp on average and are standard for plasmid cloning. 8-cutters (NotI, PacI, AscI) cut rarely (every ~65,000 bp) and are used for mapping of large genomic regions or release of large inserts from BAC or YAC vectors.
Star activity sensitivity
Restriction enzymes can exhibit relaxed sequence specificity (star activity) at suboptimal conditions: excess glycerol (&gt;5%), non-standard buffers, extended digestion times, or non-standard divalent cations. High-fidelity (HF) enzyme variants reduce star activity by more than 1000-fold and are recommended for long digestion times or when high specificity is critical for downstream cloning.
Isoschizomers and compatible ends
Isoschizomers recognize the same sequence as a reference enzyme; neoschizomers recognize the same sequence but cut at a different position. BamHI (GGATCC, 5' overhang G) is compatible with BglII (AGATCT) overhangs and with MboI and Sau3AI overhangs -- useful for directional cloning strategies without re-engineering sites. Check isoschizomer tables before designing multi-enzyme cloning strategies.
Buffer compatibility
Most suppliers have rationalized their enzyme buffers into 2-4 universal buffer systems (e.g., CutSmart, Buffer 3.1, FastDigest buffers) that support the majority of enzymes, enabling double digestion without buffer exchange. Verify buffer compatibility before combining two restriction enzymes in a single tube.
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<h2>Specifications Context</h2>
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Restriction enzyme activity is defined as the amount of enzyme required to digest 1 microgram of lambda phage DNA (or substrate specified by the manufacturer) to completion in 1 hour at 37 degrees C in 50 microliters total volume. FastDigest enzyme formats complete digestion in 5-15 minutes at 37 degrees C, using a universal buffer. Heat inactivation is possible for most enzymes at 65-80 degrees C for 20 minutes, though some enzymes (NheI, SpeI, BstEII) are not heat-inactivatable and require column cleanup before downstream ligation. Over 3,500 Type II restriction enzymes are characterized in the REBASE database; commercially available catalogues cover approximately 200-300 common enzymes. For ligating restriction-digested fragments, see&nbsp;<a href="https://mbpinc.net/reagents/molecular-biology/enzymes-and-inhibitors/dna-modifying-enzymes">DNA-modifying enzymes</a> for T4 DNA Ligase and alkaline phosphatase.
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Refine your genomic editing&mdash;<a href="https://mbpinc.net/contact-us">contact the MBP team</a> today to request a quote for our high-fidelity enzymes.

Restriction Enzymes

DpnI

Note

Transport Tubes & Vials

<h2 data-section-id="1lg84vb" data-start="0" data-end="32">What Are Drosophila Products?</h2>
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Drosophila melanogaster (fruit fly) research relies on a range of specialized consumables used for culturing, maintaining, and studying fly populations. These products include culture vials, stock bottles, plugs and closures, prepared or dry-mix culture media, and various accessories used for handling and transferring flies. Universities, research institutes, biotechnology companies, and pharmaceutical laboratories use these consumables daily for genetics, developmental biology, neuroscience, and disease-model research.
MBP supplies Drosophila culture products including polypropylene and polystyrene vials, stock bottles, and cellulose acetate plugs designed to support both small research groups and high-throughput fly facilities. In many laboratories, these consumables represent some of the most frequently used products, with large facilities consuming thousands of vials each week.
Successful Drosophila research depends on three essential consumable categories: culture vials and bottles, plugs and closures, and culture media. MBP provides all three for routine and large-scale fly laboratory operations.
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<h2 dir="ltr">Featured Products at MBP:</h2>
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Drosophila Wide Vials and Narrow Vials for versatile culture sizing and clear specimen observation.
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Drosophila Wide and Narrow Vial Combo Packs for ready-to-use, complete breeding setups.
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Drosophila Wide and Narrow Vial Closure Plugs to ensure secure airflow and prevent escapes.
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Drosophila Bottles and Closure Plugs for robust large-scale colony housing.
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Drosophila Trays for organized, stackable, and space-saving storage solutions.
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</ul>
&nbsp;
<h2 dir="ltr">Technical Specifications:</h2>
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Aluminum Metal Trays and Plastic Trays for durable organization.
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Round Bottom and Square Bottom Bottles for different benchtop needs.
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PP, K-Resin, PS, and PE Material Options for varied clarity and chemical resistance.
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Bulk-Packed and Tray-Packed Packaging Types for high-volume lab efficiency.
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</ul>
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<h2 data-section-id="fnjwt6" data-start="1168" data-end="1207">How to Choose Drosophila Consumables</h2>
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Culture Vials: Polystyrene vs Polypropylene
Polystyrene (PS) culture vials are widely used in Drosophila laboratories because of their excellent optical clarity. Researchers can easily observe fly activity, count offspring, and monitor food quality through the vial walls. These vials are commonly available in standard and narrow formats and are often preferred for routine colony maintenance and experimental work.
Polypropylene (PP) culture vials offer greater durability and can be autoclaved for sterilization. They are suitable for laboratories that reuse vials or operate workflows involving repeated washing and sterilization cycles. While slightly less transparent than polystyrene, polypropylene provides excellent resistance to physical damage and repeated handling.
Stock Bottles vs Culture Vials
Culture vials are typically used for individual fly stocks, single genetic crosses, and small-scale experiments. Their compact size makes them ideal for maintaining large numbers of separate fly lines.
Stock bottles provide greater capacity and are used for colony expansion, mass fly production, large-scale crosses, and eclosion collection. Their larger volume supports higher fly populations and greater quantities of culture media. Bottle designs are often optimized to minimize fly escape and improve handling during routine laboratory work.
Plugs and Closures
Cellulose acetate plugs are commonly considered the preferred closure option for Drosophila culture containers. Their dense structure promotes airflow while reducing moisture loss and helping protect cultures from contamination and mites.
Foam plugs are lightweight, reusable, and easy to handle, making them popular in high-volume laboratory environments where closures are repeatedly removed and replaced.
Paper lids are frequently used in automated filling operations and high-throughput culture systems where rapid processing is important.
Culture Media
Drosophila culture media provide the nutrients required for growth and reproduction. Dry-mix media formulations typically contain ingredients such as cornmeal, agar, yeast, and other nutritional components and are prepared by mixing with water and heating before use.
Ready-to-use media eliminate preparation steps and can be dispensed directly into culture containers, reducing labor and improving consistency in large-scale fly facilities.
&nbsp;
<h2 data-section-id="hwm9vz" data-start="3613" data-end="3647">Drosophila Consumables Overview</h2>
&nbsp;
Culture vials are available in polystyrene or polypropylene formats and are used for maintaining fly stocks, performing genetic crosses, and supporting routine laboratory experiments.
Stock bottles provide increased culture capacity and are commonly used for colony maintenance, large-scale breeding programs, and mass fly collection.
Cellulose acetate plugs serve as the primary closure system for many fly laboratories, helping maintain airflow while minimizing evaporation and contamination risks.
Foam plugs offer a reusable alternative that supports efficient handling in high-throughput environments.
Culture media, available as dry mixes or prepared formulations, supply the nutrients necessary for maintaining healthy Drosophila populations throughout experimental and breeding workflows.
&nbsp;
<h2 data-section-id="1jl751w" data-start="4471" data-end="4496">Specifications Context</h2>
&nbsp;
Polystyrene Drosophila vials provide excellent optical clarity and feature straight-wall designs that facilitate filling, plugging, storage, and rack organization. Polypropylene vials offer durability, autoclave compatibility, and extended service life in reusable laboratory systems.
Cellulose acetate plugs are manufactured from non-shedding material that helps reduce evaporation and provides effective protection against contamination and mites. These closures are widely used in academic and commercial fly research facilities.
As of 2026, MBP supplies Drosophila vials, stock bottles, and related consumables in bulk quantities suitable for both routine laboratory use and large-scale fly room operations. Product availability, media options, and packaging configurations may vary based on current inventory and laboratory requirements.
<a href="https://mbpinc.net/contact-us">Request a quote from the helpful team at MBP</a> for competitive pricing.

Drosophila Products

Drosophila Bottle Closure Plugs

Material: Densest foam, densest sponge, and degreasing fiber are available · Cause minimal shedding and reduce evaporation · Maintains tight fit after repeated use and removal

Bottles Closures，Material：Densest Foam，Size：45*45mm，

Bottles Closures，Material：Densest Sponge，Autoclable, Size：40*30mm，

Drosophila Narrow Vials

Material: polypropylene, polystyrene, and K-Resin are available · Narrow and wide vials are available · Safe and cost-effective substitute to glass vials

Drosophila Narrow Vials，Material：PS，Size：25*95mm，Package：25 vials/bag，20 bags/case

Drosophila Narrow Vials，Material：PP，Size：25*95mm，Package：25 vials/bag，20 bags/case

Drosophila Narrow Vials，Material：K-Resin，Size：25*95mm，Package：25 vials/bag，20 bags/case

Drosophila Narrow Vials Closure Plugs

Narrow Vials Closures, Material：Densest Foam，Size：30*45mm

Narrow Vials Closures，Material：Densest Sponge, Autoclavable, Size：25*25mm，

Narrow Vials Closures，Material：Degreasing Fiber，Size：24*30mm，

Drosophila Narrow Vials Combo

Drosophila vials combo and bottles combo are available · Disposable vials are safe and cost-effective alternative to glass vials · Bottles combo with square or round bottom · Bulk or tray packaging,

Drosophila Narrow Vials Combo，Material：PS（vials），Size: 25*95mm，Tray Packed，Package：100 vials/tray，5 trays/case

Drosophila Narrow Vials Combo，Material：PP（vials），Size: 25*95mm，Tray Packed，Package：100 vials/tray，5 trays/case

Drosophila Narrow Vials Combo，Material：K-Resin（vials），Size: 25*95mm，Tray Packed，Package：100 vials/tray，5 trays/case

Drosophila Wide Vials

Drosophila Wide Vials，Material：PS，Size：28.5*95mm，Package：25 vials/bag，20 bags/case

Drosophila Wide Vials，Material：PP，Size：28.5*95mm，Package：25 vials/bag，20 bags/case

Drosophila Wide Vials，Material：K-Resin，Size：28.5*95mm，Package：25 vials/bag，20 bags/case

Drosophila Wide Vials Closure Plugs

Wide Vials Closures, Material：Densest Foam，Size：34*45mm，

Wide Vials Closures，Material：Densest Sponge，Autoclavable, Size：27*30mm，

Wide Vials Closures，Material：Degreasing Fiber，Size：27*30mm，

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