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Macroscopic protein adsorption properties

Upon surface-thermodynamic analysis of protein adsorption onto hydrophilic surfaces such as silica or glass, based on the known surface properties of the hydrophilic protein as well as of the hydrophihc mineral substratum, one would arrive at the conclusion that the macroscopic-scale interactions in a neutral aqueous medium are so strongly repulsive that adsorption should not occur, cf. van Oss et al. (1995a). In spite of this prediction, protein adsorption onto hydrophilic glass, silica, etc. does take place, at neutral pH (MacRitchie, 1972 van Oss et al., 1995b). The mechanism of protein adsorption onto hydrophilic surfaces is quite different from that operative with... [Pg.290]

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