SIL-SELECT STOCK™

Reference:

SIS100	Sil-Select Stock - 100mL
SIS500	Sil-Select Stock - 500mL
SIS100G	Sil-Select Stock with gentamicin - 100mL

Sperm preparation media - stock solution.

Sil-Select Stock™ is our home made stock solution for preparing density gradient system for semen preparation. Sil-Select Stock™ is an isotonic solution of silane-coated sicila particles in a chemically defined, balanced salts solution with HEPES (pH buffer). Sil-Select Stock can be used in combination with IUI, IVF and ICSI. The density of Sil-Select Stock™ is approximately 1.12g/ml. 
Extensive testing during the design of the product has shown it to be non-cytotoxic and non-irritant with a non-significant allergenic potential. 
Sil-Select Stock™ is manufactured from raw colloidal silica, so we have full control over each step in the production process. We have developed a very accurate purification system which results in a very clean product with endotoxin levels below 0.5EU/ml.

Component	Benefit
HEPES (18 mM)	HEPES stabilizes the pH under air (Clark and Swain 2014), therefore CO2 incubation is not required.
Earle’s Balanced Salt Solution (EBSS)	The composition of the salt solution results in an optimum pH and osmolality environment for sperm cells.
Silane coated colloidal silica	Density gradient media have been optimized for maximum efficiency in the selection of spermatozoa for use in ART. Their density is directly linked with their functionality and depends on the % silanized colloidal silica particles added in the media.