Dialysis Tubing Visking Τubing

Dialysis tubing, also known as Visking tubing, is an artificial semi-permeable membrane tubing^[1] used in separation techniques, that facilitates the flow of tiny molecules in solution based on differential diffusion. In the context of life science research, dialysis tubing is typically used in the sample clean-up and processing of proteins and DNA samples or complex biological samples such as blood or serums. Dialysis tubing is also frequently used as a teaching aid to demonstrate the principles of diffusion, osmosis, Brownian motion and the movement of molecules across a restrictive membrane.

Dialysis tubing is available in:

14mm
19mm

Characteristic	Description
Molecular Weight Cut-off	10.000 to 14.000 Daltons
pH Stability Range	Stable in pH range 5 to 9
Protein Absorption	<1 ng/g of dry membrane
Contaminants	Sulfur Compounds – <0.3% Heavy metals – <50ppm
Temperature Resistance	Membrane can be sterilized by autoclave Membrane with aqueous solutions can be frozen
Microbial Resistance	Membranes are sensitive to cellulase activity when humidified. Using a preservative like benzoate will control bacterial growth.