BINDING-CAPACITIES OF HYDROXYAPATITE FOR GLOBULAR-PROTEINS

The binding capacities of hydroxyapatite (HAP) for globular proteins depended on the effective surface area for adsorption, described as (SBET - Sp)px, where SBET is the BET surface area, Sp is the accumulation of surface areas based on small pores which the tested protein cannot enter, p is the proportion of the area of the adsorbing surface connected with basic or acidic proteins and x is the proportion of the area of the active part of each type of adsorbing surface. The values of px and (SBET - Sp) varied with the preparation methods and condition of HAP. © 1990.