Patent ID: 8703208

Claim:
A mesoporous silica-based xerogel useful as a hemostatic material, comprising silicon oxide, calcium oxide and phosphor oxide at a molar ratio of about 50-100:5-20:5-20, the mesoporous silica-based xerogel has a porous structure that is amorphous, wherein the xerogel is obtained by a method consisting of: dissolving a silica source precursor, a phosphorus source precursor and a calcium source precursor in an aqueous ethanol solution; adjusting the pH of the obtained solution to a range of 2-8 using HCl, and stirring for about 1 to about 4 hours to obtain a stable sol; aging the obtained sol at about 20 to about 100° C. for about 5 to about 200 hours, and then drying the sol; and calcinating the dried sol at about 500 to about 700° C. for about 2 to about 10 hours to eliminate the solvent.