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Biomolecular adsorption at a silicon/water interface driven by water-structure effects

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The issue of protein adsorption onto solid surfaces in a wet environment is of great importance for the design and functionalisation of materials in the context of biomedical implants. We investigate the adsorption of the extracellular matrix protein, collagen, on hydrophobic and hydrophilic silicon surfaces using all-atom molecular dynamics. Adhesion is determined by a mutual fit between the hydrophilic/hydrophobic pattern within the protein and the layered water structure at the solid/liquid interface, providing an additional driving force to the hydrophobic effect.

This talk is part of the Surfaces, Microstructure and Fracture Group series.

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