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Freezing, either cryogenically (below -130°C) in liquid nitrogen or at higher temperatures in standard laboratory freezers, is the most popular form of preservation. OPS Diagnostics offers a number of products to aid in the freezing of biological samples.

The Bacterial Freezing Kit is a convenient means of preserving bacteria directly from culture and protecting bacterial cells during freezing. Each pre-sterilized, ready-to-use Bacterial Freezing Tube contains 3 mm glass beads and sterile glycerol, when mixed with bacterial culture broth, acts as a cryoprotectant.

As an alternative to the Bacterial Freezing Kit, OPS Diagnostics also offers Bacterial Freezing Medium. The glycerol-based solution is designed to protect bacteria stored from temperatures of -20°C to cryogenic temperatures achieved through the use of liquid nitrogen. It can be used with our Cryogenic Vials (1.8 ml), and stored for long periods of time in a Cryogenic Storage Box.

Many occasions require the handling of cryogenically preserved cells and biological samples. Temperature-sensitive samples (e.g. primary and cultured cells, protein extracts and RNA) can be damaged irreversibly if they are warmed or thawed.

To combat this problem, OPS Diagnostics designed our CryoCooler™, a valuable tool for preserving the integrity of frozen vials of cultured cells and tissue specimens. 

Cryogenic Line Sales Sheet

AC Block™ Kit

The AC Block™ Kit provides an effective, high throughput tool for cryogenic grinding of samples.

$503.00
Bacterial Freezing Medium

125 ml per bottle

$64.00
Makes sorting cyogenic tubes easy
CryoCooler™

Now with a 6x5" opening for liquid nitrogen racks.

$1,108.00
Cryogenic Storage Box

Case of 12

$152.00
Cryogenic Vials 1.8 ml

 Case of 300 Vials

$264.00
Liquid Nitrogen Pillow

 Liquid nitrogen sorbent

$67.00