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Results from ELISA and hydroxyproline assays to quantify fibrin and collagen concentrations, respectively, in the gels. In general, no significant loss in either fibrin or collagen is observed in the co-gels. A significant loss in fibrin is observed in the pure fibrin gels; this loss is also macroscopically observed in the gel shrinkage and left-over liquid (containing unaggregated fibrinogen) when removed from the Teflon molds.
