TPP Cryogenic Tubes

TPP Cryogenic Tubes provide safe and reliable long-term storage of cell lines, tissues, and biological samples in freezers or LN2 vapor phase. Designed with a pronounced external thread, they deliver a secure, gas- and aerosol-tight seal to prevent leaks, protect sample integrity, and minimize contamination.

The smooth internal surface reduces specimen loss during retrieval, while the unique vial geometry eliminates the need for silicone gaskets. A star-shaped, self-standing bottom allows for one-handed opening and closing under sterile conditions, improving ease of use.

Manufactured from high-quality virgin polypropylene, TPP Cryogenic Tubes ensure maximum sample protection with no additives, slip agents, biocides, or plasticizers. Each tube features a white writing surface, clear graduations, and compatibility with TPP labeling cap inserts for simple identification.

Supplied sterile, DNAse/RNAse-free, pyrogen-free, and heavy metal-free, TPP Cryogenic Tubes are packaged in durable, resealable zipper bags with laser perforation for secure handling.

Applications include: cryopreservation of cell lines, long-term storage of tissues, sample transport, and secure storage of biological specimens.

Key Features

• Gas- and aerosol-tight external thread prevents leakage
• Smooth internal surface minimizes sample loss
• Star-bottom design allows self-standing, one-handed handling
• Made from virgin polypropylene; no additives, slip agents, or plasticizers
• White labeling surfaces for easy identification
• Highly visible and accurate graduations
• Supplied in puncture- and tear-resistant reclosable bags with zipper and laser perforation
• Ideal for cryopreservation, sample storage, and transport

Quality Assurance

• Sterile (gamma irradiated)
• DNAse/RNAse, pyrogen, and heavy metal-free

Recommendations

• Always use appropriate safety equipment and practices when handling frozen polar tubes
• TPP Polar Tubes are to be used for storage  in the gas/vapor phase
• Avoid filling up the Polar Tubes to the maximal filling volume to avoid spillage of liquid sample due to expansion of liquids upon freezing

Specifications
 

Contact us for samples and see how TPP Cryogenic Tubes can simplify your long-term sample storage.

   
 

PR1MA™ Autoradiography and Chemiluminescence Film for Western Blots

One autoradiography film for ALL your needs!

Many companies sell film solely on price without considering your needs. Some offer many different films making it difficult to decide what is best for your needs.

MIDSCI™ narrowed the Autoradiography Film field to PR1MA™ Blue Sensitive Film. It will work outstandingly well for almost 100% of all molecular labs' needs.
 

• PR1MA™ Autoradiography Film is double emulsion
• High signal sensitivity
• For autoradiography of ³²P, ³³P, ³⁵S, ¹²⁵I, and ¹⁴C
• Excellent lot-to-lot consistency
• Exceptional clarity with extremely low backgrounds
• Consistently superior results for exposure of blotting experiments and sequencing gels
• Publishable grade autoradiographs
• Optimized for chemiluminescence
• Film works with calcium tungstate or blue rare earth screens
• For use manually or with automatic processing
• 100 sheets per box
• Available in 3 sizes: 5 x 7 in., 8 x 10 in., and 14 x 17 in.

Specifications

Autoradiography, and, Chemiluminescence, Film, Western, blots, PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities

PR1MA™ 24-Well Deep Well Plates

Manufactured from pure polystyrene with no additives and sterilized by gamma irradiation, these plates ensure optimal sterility and performance. Plates are single-use (non-autoclavable) and come individually wrapped/sealed in polyethylene foil.

• Plates have square wells of 17 x 17 mm and 40 mm deep
• Typical shaking conditions: 225 rpm/50 mm, or 300 rpm/25 mm

Fully Skirted Square 24-Deep Well Microplate with Disposable Cover (PR-CR1424-CDC)

Older version of PR-CR1424-CL. Mainly used with the Thermo Fisher™ Cytomat™ Selector series and for further automation uses.

• Pyramid bottom for easy centrifugation (pellet in center well)
• Comes with a disposable low-evaporation sandwich cover (1.2 mm holes) on top
• Mainly used for automation purposes where the PR-CR1424-CL ridges are an issue 

Square 24-Deep Well Microplates with PS Lid (PR-CR1424-CL)

• Used for leachable-sensitive cultures, such as the cultivation of CHO- and HEK cells
• Pyramid bottom for easy centrifugation (pellet in center well)
• Stackable two high in our universal clamps
• Barcoded version available for sample tracking (PR-CR1424-CLB)

Square 24-Deep Well Microplates with Disposable Cover (PR-CR1424-CLDC)

• Low evaporation disposable covers (1.2 mm holes) mounted on top
• Pyramid bottom for easy centrifugation (pellet in center well)
• Stack three high in our universal clamps 

Grey/White Square 24-Deep Well Microplates with a Transparent Bottom (PR-CR1424-DG)

• Has a transparent bottom and is thus suitable for use in the Growth Profiler
• Light grey to prevent cross-talk between wells, ensuring the most accurate measurements, even at lower ODs 

Extra Tall 4-Position Universal Clamp (PR-CR1812DC-L)

For use with 24-Deep Well Plates and disposable covers.

Special clamping system with ultra-high pillars to support triple-stacked plates and disposable covers, such as the PR-CR1424-CLDC series. Fits various shaker platforms.

If stainless covers are used, only two 24-Deep Well Plates and covers are to be stacked (to prevent a too high center of gravity)

Specifications
 

Item #	Plate Description	Plate Height	Wells	Bottom Style	Vol.	Rec. Culture Vol.	Color
PR-CR1424-CL	Square deepwell w/ disposable PS lid	44 mm	24 Wells, 40 mm	V-Bottom	264 mL	3 mL	Clear
PR-CR1424-CLB	Square deepwell w/ disposable PS lid and barcode	44 mm	24 Wells, 40 mm	V-Bottom	264 mL	3 mL	Clear
PR-CR1424-CDC	Sq. deepwell w/ dispo. sandwich cover, 1.2 mm holes (Cytomat use)	44 mm	24 Wells, 40 mm	V-Bottom	264 mL	3 mL	Clear
PR-CR1424-CLDC	Square deepwell w/ disposable sandwich cover, 1.2 mm holes	44 mm	24 Wells, 40 mm	V-Bottom	264 mL	2.5 mL	Clear
PR-CR1424-DG	Square deepwell, disposable	44 mm	24 Wells, 40 mm	Transparent	264 mL	2.5 mL	Grey/White
PR-CR1812dc-L	Ultra high universal clamp with 4 positions, for triple stacking of 3 MTPs + disposable covers (fits various shaker platforms)

 

Disclaimer

Thermo Fisher™ and Cytomat™ are trademarks of Thermo Fisher Scientific Inc. Our products are third-party items designed for compatibility with Thermo Fisher™ instruments. Thermo Fisher Scientific Inc. does not manufacture, sponsor, or endorse our products, and is not affiliated with these offerings in any way.
 
 

PR1MA™ 2-Well Deep Well Plates

High capacity deep well plates for scalable cell culture and efficient mixing.

Upgrade your cell culture workflow with PR1MA™ 2-Deepwell Microplates, expertly designed to handle larger culture volumes and replace traditional 250 mL flasks. Made from pure polystyrene with no additives, each plate features two deep wells and comes with a transparent polystyrene lid for secure and sterile handling.

Key Features

• Each square well holds approximately 230 mL, ideal for large-scale cultures
• Pyramid bottom design promotes easy and efficient centrifugation, allowing for central pellet formation
• Sterilized by gamma irradiation and non-autoclavable to ensure optimal sterility
• Designed for shaking at 180 rpm (50 mm orbit) or 225 rpm (25 mm orbit) to maximize aeration and mixing efficiency
• Wells are 80 mm deep with slightly rounded corners to reduce foaming during agitation
• Packed in boxes of 4, each plate is individually wrapped in polyethylene foil for easy handling and contamination prevention

• Also available with barcodes (PR-CR1402-LB) for seamless sample tracking   

Perfect for cell culture, bacterial growth, protein expression, or any lab process requiring large volume mixing in a compact format.

Switch to PR1MA™ deep well plates for a more efficient, space-saving alternative to bulky flasks, with better culture control, easier handling, and superior performance.

Specifications
 

Item #	Plate Description	Plate Height	Wells	Bottom Style	Vol.	Rec. Culture Vol.	Color
PR-CR1402-L	Extra high sq. deepwell w/ PS lid	85 mm	2 Wells, 80 mm	V-Bottom	460 mL	60 - 80 mL	Clear
PR-CR1402-LB	Extra high sq. deepwell w/ PS lid & barcode	85 mm	2 Wells, 80 mm	V-Bottom	460 mL	60 - 80 mL	Clear

 

New Look, Same Reliable Product - Now from PR1MA™!

PR1MA™ Western Blotting Boxes

Minimize Antibody Waste & Maximize Efficiency.

No matter the size of your blot, there’s a PR1MA™ Western Blotting Box designed to fit it perfectly. Our selection includes boxes tailored for mini, half, whole, and strip blots, ensuring the most efficient use of space and reagents. By matching blot size to the correct container, you can reduce reagent and antibody consumption, save money, and maximize shaker or rocker capacity during incubation.

All boxes feature uniformly flat bottoms and 90º angled corners to ensure even reagent distribution and minimal pooling. For light-sensitive samples, opaque black blotting boxes are available to protect antibodies and blots from photodegradation.

With a hinged lid to minimize evaporation and sizes optimized for all common blotting applications, these boxes are a must-have for any lab performing Western blot analysis.

Key Features

• Sized to fit all common blot formats – mini, half, whole, and strip blots
• Reduce antibody and reagent usage with perfectly sized boxes
• Flat bottom and 90° corners for uniform reagent coverage
• Hinged lids reduce evaporation during incubations
• Light-blocking black boxes available for light-sensitive protocols
• Ideal for Western blotting, membrane staining, and antibody incubations 

Use the right-sized box to get better results while saving on expensive reagents.   

Specifications

PR1MA™ 24 Well Half Deep Well Plates

4-Well round polystyrene microplates with transparent bottom and lid (Porvair®).

The PR1MA™ Half Deep Well Plate - 24 is designed for specialized cell cultivation where minimal shear stress is essential. Manufactured from high-quality polystyrene, these microplates feature round wells with a transparent bottom and come with a polystyrene lid, making them ideal for applications such as Growth Profiler analysis and other optical measurements.

Each plate is individually sealed in polyethylene foil, sterilized by gamma irradiation, and non-autoclavable, intended for single-use only. These microplates are a preferred solution for culturing sensitive cells that may not tolerate the angular edges of square-well plates.

With a recommended culture volume of 1 mL (total well volume 3 mL), the PR-CR1424-F performs reliably under standard shaking conditions, 225 rpm with 50 mm orbit or 300 rpm with 25 mm orbit.

For optimal use, pair with Porvair® cover CR1324c and clamp CR1801h for secure sealing and improved cultivation consistency.

Key Features

• 24-well round-bottom microplates made of polystyrene
• Transparent bottom suitable for Growth Profiler and optical measurements
• Gamma-irradiated for sterility
• Single-use; non-autoclavable
• Each plate includes a polystyrene lid and is individually sealed
• Recommended culture volume: 1 mL (well capacity: 3 mL)
• Shaking conditions: 225 rpm / 50 mm orbit or 300 rpm / 25 mm orbit
• Packed in boxes of 16 

Ideal for researchers working with shear-sensitive cell cultures, and in applications where consistent sterility and transparency are critical.

Specifications

Disclaimer

Porvair® is a trademark of Porvair plc. Our products are third-party items designed for compatibility with select Porvair® components. Porvair plc does not manufacture, sponsor, or endorse our products, and is not affiliated with these offerings in any way.
 
 

PR1MA™ 96-Well Half Deep Well Plates

PR1MA™ 96 Half-Deepwell Microplates are high-quality plates designed for high-throughput microbial or cell culture, optimized for use in aerated shaking incubations and growth profiling systems.

Manufactured from pure polystyrene with no additives and sterilized by gamma irradiation, these plates ensure optimal sterility and performance for sensitive cultivation needs.

These half-deepwell plates offer exceptional optical clarity, mixing efficiency, and pellet recovery, making them an ideal choice for biotech, pharmaceutical, and academic laboratories conducting high-throughput screening, growth analysis, and sensitive cultures.

Key Features

• Square wells (8 x 8 mm, 17 mm deep) for space efficiency and consistent mixing
• Recommended working volume of 0.3 mL, with a max of 1.1 mL per well
  Suitable for
  
• Suitable for
• Suitable for 225 rpm (50 mm orbit) or 300 rpm (25 mm orbit) for high oxygen transfer rates
• Ideal for small-volume cultures (up to 1.1 mL per well) 

Available in sterile, single-use boxes of 16, individually wrapped in polyethylene foil for easy handling and contamination prevention.

PR1MA™ Plates for General Cultivation

• General cultivation plates ideal for sensitive microbial or mammalian cell cultures (PR-CR1496-C)
• Compatible with universal clamping systems for secure shaking incubation
• Pyramid bottom design ensures efficient cell pellet collection during centrifugation
• Also available in boxes of 20, 10 plates per sealed bag (PR-CR1496-C10)

PR1MA™ Plates for Growth Profiler Applications

• Standard plate for use in Growth Profiler systems (PR-CR1496-DG)
• Light grey color to minimize optical crosstalk between wells
• Transparent bottom laser-welded, no adhesives used, ensuring optical clarity and assay integrity 

PR1MA™ Plates for Niche Photometric Applications

• 96 Plate designed for specialized photometric assays (PR-CR1496-F)
• Transparent bottom laser-welded, no adhesives used, ensuring optical clarity and assay integrity 

Specifications
 

Item #	Plate Description	Plate Height	Wells	Bottom Style	Vol.	Rec. Culture Vol.	Color
PR-CR1496-C	Square half deepwell	22 mm	96 Wells, 17 mm	V-Bottom	105.6 mL	0.3 mL	Clear
PR-CR1496-C10	Square half deepwell, 20/pk, 10 pks/cs	22 mm	96 Wells, 17 mm	V-Bottom	105.6 mL	0.3 mL	Clear
PR-CR1496-DG	Square half deepwell	22 mm	96 Wells, 17 mm	Transparent	105.6 mL	0.3 mL	Grey/White
PR-CR1496-F	Square half deepwell	22 mm	96 Wells, 17 mm	Transparent	105.6 mL	0.3 mL	Black

 

PR1MA™ 6-Well Deep Well Plates

PR1MA™ 6-Deepwell Microplates are high-quality, sterile plates specifically engineered for CHO-cell cultivation. Each plate is constructed from pure polystyrene with no additives, making it ideal for sensitive biological applications. Designed to replace 125 mL shake flasks, these plates offer superior mixing, better scalability, and a smaller lab footprint.

Key Features

• Six Deep Wells Per Plate: Each square well measures 34 x 34 mm, is 80 mm deep, and has a slightly rounded bottom to prevent foaming
• Recommended working volume of 25 to 35 mL per well, with a maximum capacity of 82 mL
• Pyramid-shaped well bottom allows for easy and consistent centrifugation, centralizing cell pellets for simplified downstream processing
• Sterilized by gamma irradiation. Plates are non-autoclavable and individually sealed for contamination control
• Optimized for Shaking Incubators: Suitable for orbital shaking at 180 rpm (50 mm orbit) or 225 rpm (25 mm orbit) to ensure efficient oxygen transfer and mixing.
• Specifically developed for long-term cultivation (4+ days) of Chinese Hamster Ovary (CHO) cells, widely used in biopharma production
• Packed in boxes of 4, each plate is individually wrapped in polyethylene foil for easy handling and contamination prevention 

Available Lid Options

• Standard Polystyrene Lid (PR-CR1406)
• Barcoded Version (PR-CR1406-B) for sample tracking
• Disposable Low-Evaporation Cover (PR-CR1406-DC) 

Low-Evaporation Disposable Cover (PR-CR1406-DC)

Enhance your long-term culture performance with this disposable sandwich-style lid, specifically designed to minimize evaporation during extended incubations.

• Evaporation Control: ~130 uL/well/day at 30°C, 50% humidity
• Air Exchange: 6.5 mL/min per well through 4 mm holes
• Ideal for Extended Cultures: Supports stable growth of CHO cells over 4+ days 

Construction

• Rigid frame from medical-grade polystyrene
• ePTFE membrane filter (0.3 uM) laminated with polyester/polyamide fabric
• PEVA rubber seal (FDA-grade closed-cell foam) for a tight fit and secure seal 

Upgrade to the PR1MA™ 6-Deepwell Plates for more consistent culture performance, improved lab efficiency, and reduced risk of contamination.

Specifications
 

Item #	Plate Description	Plate Height	Wells	Bottom Style	Vol.	Rec. Culture Vol.	Color
PR-CR1406	Extra high square deepwell w/ PS lid	85 mm	6 Wells, 80 mm	V-Bottom	492 mL	25 - 35 mL	Clear
PR-CR1406-B	Extra high square deepwell w/ PS lid and barcode	85 mm	6 Wells, 80 mm	V-Bottom	492 mL	25 - 35 mL	Clear
PR-CR1406-DC	Extra high square deepwell w/ dispo. cover, 4 mm holes	85 mm	6 Wells, 80 mm	V-Bottom	600 mL	25 - 35 mL	Clear

 

PR1MA™-Shell Plates - 384-Well, Full Skirted

Discover the next generation of PCR plates: Rugged Polycarbonate Frame + Polypropylene Wells

Engineered for unparalleled durability, PR1MA™-Shell PCR Plates are designed to accommodate all laboratory workflows and are ideal for use on automated liquid handling platforms.

PR1MA™-Shell sets a new standard in performance and convenience.

• The polycarbonate frame is rigid and flat to facilitate a firm grip by robotic arms and ensure reliable placement
• Polypropylene wells provide optimal thermal transfer and higher reaction efficiency
• White well options enhance the fluorescence signal during qPCR
• Wells are slightly raised to ensure evaporation-proof sealing with film, foil, or strip caps
• ANSI/SBS footprint and well spacing
• Vibrant colors offer a visual distinction between different samples or experiments
• Certified free of detectable RNase, DNase, DNA, PCR inhibitors, and tested pyrogen-free 

Proudly made in the USA! Click here for more made in America products!
  

PR1MA™-Shell Plates - 96-Well, Full Skirted

Discover the next generation of PCR plates: Rugged Polycarbonate Frame + Polypropylene Wells

Engineered for unparalleled durability, PR1MA™-Shell PCR Plates are designed to accommodate all laboratory workflows and are ideal for use on automated liquid handling platforms.

PR1MA™-Shell sets a new standard in performance and convenience.

• The polycarbonate frame is rigid and flat to facilitate a firm grip by robotic arms and ensure reliable placement
• Polypropylene wells provide optimal thermal transfer and higher reaction efficiency
• White well options enhance the fluorescence signal during qPCR
• Wells are slightly raised to ensure evaporation-proof sealing with film, foil, or strip caps
• ANSI/SBS footprint and well spacing
• Vibrant colors offer a visual distinction between different samples or experiments
• Certified free of detectable RNase, DNase, DNA, PCR inhibitors, and tested pyrogen-free

Proudly made in the USA! Click here for more made in America products!
 

PR1MA™ Rapid Coomassie Stain

Proudly made in the USA! Click here for more made in America products!
  

Rapid, Commassie, Stain, PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities

PR1MA™ Protein Gel-Loading Dye for SDS-PAGE

Protein, Gel-Loading, Dye, SDS-PAGE,PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities