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10 March 2020 Artificial repeat proteins evolved as habit modifiers and protein origami templates for the morphosynthesis of (111)-terminated gold nanocrystals (Conference Presentation)
Janak Prasad, Sébastien Viollet, Laureen Moreaud, Agathe Urvoas, Marie Valerio-Lepiniec, Agnès Mesneau, Philippe Minard, Erik Dujardin
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Proceedings Volume 11255, Colloidal Nanoparticles for Biomedical Applications XV; 112550B (2020) https://doi.org/10.1117/12.2545239
Event: SPIE BiOS, 2020, San Francisco, California, United States
Abstract
Artificial proteins are created that offer a universal and biocompatible approach to control the morphology of metal nanocrystals. First, we select, from a large library of artificial proteins (alpha-Repins), individuals that show specific binding for Au(111) facets. Gold nanocrystals synthesized with such -Rep are exclusively terminated by Au(111) planes. The protein-coated nanocrystals are then functionalized to perform biomolecule-driven self-assembly and on-surface enzymatic catalysis. Alternatively, growth templates with a complex and rigid shape could be constructed from two artificial proteins selected to act as the supercoil unit and the staple that spontaneously self-assemble into helical nanotubular templates observed by cryo-electron microscopy.
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Janak Prasad, Sébastien Viollet, Laureen Moreaud, Agathe Urvoas, Marie Valerio-Lepiniec, Agnès Mesneau, Philippe Minard, and Erik Dujardin "Artificial repeat proteins evolved as habit modifiers and protein origami templates for the morphosynthesis of (111)-terminated gold nanocrystals (Conference Presentation)", Proc. SPIE 11255, Colloidal Nanoparticles for Biomedical Applications XV, 112550B (10 March 2020); https://doi.org/10.1117/12.2545239
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KEYWORDS
Proteins
Nanocrystals
Gold
Catalysis
Crystals
Microscopy
Molecules
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