Biopolymers at Interfaces, Second Edition (Surfactant by Martin Malmsten

By Martin Malmsten

This re-creation beneficial properties study from approximately 60 of the profession's such a lot unusual foreign gurus. spotting rising advancements in biopolymer structures examine with absolutely up to date and extended chapters, the second one variation discusses the biopolymer-based multilayer constructions and their program in biosensors, the growth made within the realizing of protein behaviour on the air-water interface, experimental findings in ellipsometry and reflectometry, and up to date advancements relating protein interfacial behaviour in microfabricated overall research platforms and microarrays. With over 3000 references, this can be an important reference for pros and scholars in floor, pharmaceutical, colloid, polymer, and medicinal chemistry; chemical, formula, and alertness engineering; and pharmacy.

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H. M. Scheutjens, G. J. Fleer, and M. A. Cohen Stuart, End effects in polymer adsorption: a tale of tails. Colloids Surf. 21:285–306 (1986). A. N. Semenov, J. Bonet-Avalos, A. Johner, and J. F. Joanny, Adsorption of polymer solutions onto a flat surface. Macromolecules 29:2179–2196 (1996). M. A. Cohen Stuart, F. H. W. H. Waajen, T. Cosgrove, T. L. Crowley, and B. Vincent, Hydrodynamic thickness of adsorbed polymer layers. Macromolecules 17:1825–1830 (1984). C. W. Hoogendam, C. J. W. Peters, A. de Keizer, M.

37. 38. 39. 40. 41. 42. 43. 44. 2 Driving Forces for Protein Adsorption at Solid Surfaces WILLEM NORDE The Netherlands Wageningen Agricultural University, Wageningen, I. INTRODUCTION Proteins are copolymers of some 22 different amino acids of varying hydrophobicity (Fig. 1). As a consequence, proteins are more or less amphiphilic and, therefore, usually highly surface active. Moreover, a number of amino acid residues in the side groups along the polypeptide chain contain positive or negative charges.

Obtaining more accurate values is hampered by the irregular geometry of the protein molecule and, possibly, the sorbent surface. Furthermore, structural perturbation in the adsorbed protein may affect the Hamaker constant to an unknown extent. C. Hydration Changes When the surfaces of the protein molecule and the sorbent are hydrophilic, their hydration is favorable. Therefore, if protein adsorption occurs it is likely that some hydration water is retained between the sorbent surface and the adsorbed layer.

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