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Tube holders/racks are among the most common and abundant items in a laboratory environment. Reaction tubes come in different sizes and require specific holders. Here, I present racks/stands/holders to suit the most common applications in a biological laboratory in the format of Kit Cards. These designs feature materials friendly yet rigid and stable for assembly, easy printing & assembly, and have been tested in actual biomedical labs.

This page holds the model for a 4 x 10 cryotube rack. The cryotube rack is designed with a socket for the star foot base of cryotubes, such as Nunc's cryotubes, to aid in the opening and closing of the cap with a single hand.

Please visit the following separate models:

15mL and 50mL Falcon tubes holder
https://makerworld.com/en/models/251250
PCR tubes holder
https://makerworld.com/en/models/251190
FACS tubes holder
https://makerworld.com/en/models/251208
Microcentrifuge/Eppendorf tubes holder
https://makerworld.com/en/models/251179
Cryotubes holder
https://makerworld.com/en/models/251198
Microscope slides holder
https://makerworld.com/en/models/251280

These models are published separately to:

1. Avoid clutter
2. Facilitate easy searching for the correct items
3. Allow convenient potential updates and troubleshooting.

After all, laboratory vessels come in different sizes and variations, so minor adjustments might be needed for individual cases. Just let me know in the comments, and I will try to resolve them.

Background:

Cryotubes, also known as cryogenic vials or storage tubes, are specialized tubes designed for the long-term storage of biological samples at ultra-low temperatures, typically ranging from -80°C to -196°C (liquid nitrogen temperatures). These tubes are widely used in biomedical research, clinical laboratories, and biobanks for preserving various biological materials, including cells, tissues, proteins, DNA, and RNA, for extended periods.

Cryotubes are typically made of materials such as polypropylene or polyethylene, which are compatible with low temperatures and resistant to cracking or shattering. They are designed to withstand the extreme cold temperatures of cryogenic storage without compromising the integrity of the samples inside.

These tubes usually feature a screw cap or a snap cap closure system that provides a secure seal to prevent sample leakage or contamination during storage. Some cryotubes also have molded-in alphanumeric grids on the sides for easy sample identification and tracking.

To enhance sample protection during storage, cryotubes may come with additional features such as silicone gaskets or O-rings in the cap to provide an airtight seal, as well as external threads to minimize the risk of contamination when handling frozen samples.

Cryotubes are essential tools for the preservation of valuable biological samples in research, clinical, and biorepository settings.

Assembly:
Simply slot the support pillars into the panels. It should be easier than assembling IKEA furniture, and anyone smart enough to be in a lab should have no problem assembling them.