No compromise is possible when dealing with SAFETY and QUALITY of storage of biological samples.
Material
All Cryo Bio System straws are made from a ionomeric resin that is chemically inert, biocompatible and has physical characteristics resistant to ultra low temperatures and pressures created by expanding liquids and liquid nitrogen. Sealed straws are resistance tested to 150 kg/cm² (2,133 lb/sq.inch), both the seals and the material should resist in order to have the batch approved.
Plugs
Straws are filled by aspiration through an air permeable plug inside the straw. Two types of plugs are available:
The factory plug made of two specifically woven polyamide fibers enclosing a polymerizing powder. In the filling procedure the powder polymerizes as soon as the liquid sample comes in contact and blocks the filling. Plugs can come in 6 different colors, for easy identification in the cold environment of a freezer.- The hydrophobic plug made of a 0.22 µm membrane attached to a hollow stem. This membrane allows air to pass through it but neither liquid nor bacteria.
Seal
Directly after filling, both extremities of the CBS™ High Security straw are thermally sealed with one of our specific machines: SYMS, PACE or MAPI. This makes the straw absolutely leak proof, preventing contamination of the sample and its environment.
Tamper proof identification
The primary identification of the straw in the cold environment of the freezer is by its color, while its definitive identification is by its alpha-numerical and bar code. The CBS™ High Security straw is identified by tamper proof ink-jet print on a jacket around the straw. The special ink is resistant to liquid nitrogen and to ice crystals as well as plastic materials. Once the straw is sealed, the jacket cannot be removed from the straw unless it is opened.
A second process of identification is available for 0.3 ml straws where a colored identification rod with a label can be inserted inside the straw in the compartment behind the plug. This label can only be taken from the sample when the straw is opened.
Storage
For storage, CBS™ High Security straws are placed in colored compartments called visotubes which are available in many colors. These are further placed into colored goblets. Color coding facilitates identification of straws upon retrieval. A Daisy goblet can easily hold 144 straws (12 visotubes).
Applications
Virtually any liquid sample can be stored in CBS™ High Security straws. Applications include plasma, serum, buffy coat, red blood cells, extracted DNA, urine, mouth wash, cell suspensions, bacterial or viral strains, gametes and embryos.
Dimensions
- 0.3 ml and 0.5 ml straws
- Length: 130 mm after sealing
- Internal diameter: 2.5 mm
- 1 ml straws
- Length: 130 mm after sealing
- Internal diameter: 3.7 mm
Accessories
Filling nozzles for manual filling: 0.3, 0.5 ml and 1 ml.
Syringe connectors.
Filling nozzles for MAPI and PACE automated filling.
CBS™ High Security straws are available in 3 different volumes.
|
straw volume |
plug type |
color |
compatibility with equipment |
|
0.5 ml |
weave |
plug |
MAPI, PACE, SYMS |
|
0.3 ml |
weave |
fixed insert |
MAPI, PACE, SYMS |
|
0.3 ml |
hydrophobic |
plug/insert |
SYMS |
|
0.5 ml |
hydrophobic |
plug |
SYMS |
|
1 ml |
hydrophobic |
plug |
SYMS |
our catalogue
You can download our product catalogue in pdf format.