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Collagen membranes of increased absorption were prepared by incubation in the acidic solutions and lyophilization. The organic acids and hydrochloric acid solutions were used for this purpose. The membranes incubated in 2% citric acid possessed of highest absorption. Microdressings containing povidone-iodine or chlorhexidine glycerin solution were prepared(More)
The results of haemostatic properties examination of bovine collagen membranes and sponges manufactured in Poland in comparison to Spongostan are presented. In the first step of investigation the experiments were performed using punctured mouse livers. The second step comprised clinical trials in seven patients hospitalised in the Department of Plastic(More)
Collagen membranes were crosslinked by using three agents: glutaraldehyde, hexamethylene-diisocyanate, and UV irradiation. The increasing concentrations of above chemical agents or longer time of UV exposition resulted in the higher cross-links degree and in the decrease of collagen membranes swelling (measured as water absorption), their elasticity and(More)
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