15 ul Dialysis Buttons

50 pack of 15 ul Dialysis Buttons
APPLICATIONS
Crystallization by dialysis, protein folding, & small volume sample dialysis
FEATURES
Low volume dialysis
Fits in 24 well plates
Use over and over again
DESCRIPTION
In the dialysis method, the sample in question is separated from the "precipitant" by a semi-permeable membrane which allows small reagent molecules to pass but prevents biological macromolecules from crossing the membrane.
Dialysis Buttons are injection molded from polystyrene, and are the size of a small button. The sample is placed in this chamber so as to create a slight dome of liquid at the top of the button. A dialysis membrane is placed over the top of the button/sample and is held in place with an O-ring. The O-ring is held in place by a groove in the Dialysis Button. Dialysis Buttons are supplied with O-rings. The 5 ul to 100 ul sized dialysis buttons have an approximate overall height of 6 mm, an approximate outside diameter of 10 mm without an O-ring in place, and an approximate diameter of 12 mm with an O-ring in place. The 200 ul and 350 ul sized dialysis buttons have an approximate overall height of 8 mm, an approximate outside diameter of 15 mm without an O-ring in place, and an approximate diameter of 17 mm with an O-ring in place. Each package of dialysis buttons includes a plastic golf tee shaped applicator to assist with applying a dialysis membrane to the button and securing with the supplied o-ring.