Jose, Jaya C.; Sengupta, Neelanjana
Molecular dynamics simulation studies of the structural response of an isolated A beta(1-42) monomer localized in the vicinity of the hydrophilic TiO2 surface
EUROPEAN BIOPHYSICS JOURNAL WITH BIOPHYSICS LETTERS, 42:487-494, JUN 2013

We have probed the effect of a model hydrophilic surface, rutile TiO2, on the full-length amyloid beta (A beta(1-42)) monomer using molecular dynamics simulations. The rutile surface brings about sharp changes in the peptide's intrinsic behavior in a distance-dependent manner. The intrinsic collapse of the peptide is disrupted, while the beta-sheet propensity is sharply enhanced with increased proximity to the surface. The results may have implications for A beta self-assembly and fibrillogenesis on hydrophilic surfaces and should be taken into consideration in the design of novel nanomaterials for perturbing amyloidogenic behavior.

DOI:10.1007/s00249-013-0900-6

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