Sperm preparation media – stock solution
Sil-Select Stock is a stock solution for the preparation of density gradients for sperm selection
Why Sil-Select Stock?
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 silica 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.
Information about the composition of the product can be found in the material safety data sheet.
Product specifications
| pH | 7.2 – 7.9 (7.2-7.6 at product release) |
| Osmolality | 300-330mOsm/kg |
| Sterility | Sterile |
| Endotoxine | < 0.5 EU/mL |
| Sperm Survival test | ≥ 80% motility recovery after 4 hours exposure ≥ 75% motility recovery after 24 hours exposure |
| Density | 1.1150-1.1250g/mL |
| Viscosity in cP (25°C) | <1.75cP |
| In-use stability | Can be used safely up to 7 days after opening, when sterile conditions are maintained and the prouducts are stored at 2-8°C |
SIS100 Sil-Select STOCK – 100ml
SIS500 Sil-Select STOCK – 500ml
SIS100G Sil-Select Stock with gentamicin – 100ml
Contact us about your FertiPro needs
We supply the full range of FertiPro products. Call us on 0114 224 2257 to discuss your order. 96% of our orders are despatched within 48 hours.