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A. Adsorption isotherms showing the binding of different PVPA concentrations to demineralized collagen matrices in the absence of carbodiimde (EDC) at 1 min (open triangle), 5 min (open circle) and 1 h (open square) at 37°C. Each point represents the mean of triplicate assays. B. Linear Scatchard plots corresponding to the adsorption isotherms in Fig. 1A.
