Multifunctional metallic nanoparticle-peptide bilayer complexes
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United States of America Patent
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Mar 30, 2021
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Aug 17, 2017
app pub date -
Nov 4, 2015
filing date -
Nov 5, 2014
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Abstract
Described are nanoparticulates comprising a metallic nanoparticle core and a peptide coating or shell encapsulating the nanoparticle core and being covalently bonded thereto. The coating is formed from a plurality of branched, amphipathic peptides, each comprising a polar/positively charged C-terminal segment, a branch point, and two hydrophobic N-terminal segments extending from the branch point. Methods of forming and using the nanoparticulates are also described. When a plurality of first and second peptides are added sequentially to the nanoparticle core, the peptides they self-assemble to form an interlocking peptide network bilayer where the respective hydrophobic segments of the peptides form beta-sheet structures in which the opposed sequences interlock to form a zipper-like structure in three dimensions.
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