Sterile Cryotubes with Non-Pyrogenic Assurance | Secure Biological Sample Storage

Key Features of High-Quality Cryotubes

When it comes to storing samples at ultra-low temperatures (down to -196°C in liquid nitrogen), every detail counts. Let's break down the must-have features:

Sterility & Non-Pyrogenic Assurance

Pyrogens are substances that cause fever when introduced into the body, and they're a big no-no in clinical and research settings. Even trace amounts of pyrogens can trigger an immune response, making clinical trial results unreliable or even dangerous for patients. Our cryotubes undergo rigorous sterilization processes (either ethylene oxide or gamma irradiation) to ensure they're free from bacteria, fungi, and pyrogens. This non-pyrogenic assurance means your samples stay pure, avoiding contamination that could skew results or render them useless. We test every batch for pyrogens using the Limulus Amebocyte Lysate (LAL) assay, a gold standard method that detects even the smallest amounts of endotoxins (a type of pyrogen).

Leak-Proof Design

Ever had a cryotube leak in your liquid nitrogen tank? It's a nightmare. Liquid nitrogen seeping into the tube can cause the sample to expand when thawed, leading to explosion or contamination. Our cryotubes feature a silicone gasket seal that creates an airtight barrier, preventing liquid nitrogen from seeping in and sample leakage. Whether you're using internal thread tubes (which are easier to stack) or external thread tubes (which offer better sealing for some applications), you can trust that your samples are safe. We test each design for leakage by submerging them in liquid nitrogen and checking for any signs of seepage—only passing designs make it to our product line.

Temperature Resistance

Liquid nitrogen storage hits -196°C, so your cryotubes need to handle extreme cold without cracking or deforming. We use high-quality polypropylene (PP) material that maintains its integrity even at these frigid temperatures, ensuring long-term sample stability. PP is also resistant to chemicals, making it ideal for storing a wide range of biological samples, from blood to cell cultures.

DNase/RNase-Free

For molecular biology research, DNase and RNase enzymes are enemy number one—they break down DNA and RNA, ruining your samples. Our cryotubes are treated to be DNase/RNase-free, protecting the genetic material in your samples. This is especially important for PCR, sequencing, and other molecular techniques where intact nucleic acids are critical.

Easy Identification

Keeping track of hundreds or thousands of samples can be challenging. Our cryotubes come with writable surfaces that accept markers without smudging, even after repeated freezing and thawing. For labs that prefer pre-labeled tubes, we offer custom printing options, including barcodes, QR codes, and text, to make sample identification quick and accurate.