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γ‐Glutamylcysteine‐ and Cysteinylglycine‐Directed Growth of Chiral Gold Nanoparticles and their Crystallographic Analysis
Author(s) -
Kim Hyeohn,
Im Sang Won,
Cho Nam Heon,
Seo Da Hye,
Kim Ryeong Myeong,
Lim YaeChan,
Lee HyeEun,
Ahn HyoYong,
Nam Ki Tae
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202003760
Subject(s) - dodecahedron , crystallography , nanoparticle , morphology (biology) , amino acid , chirality (physics) , chemistry , stereochemistry , colloidal gold , materials science , nanotechnology , biochemistry , chiral symmetry breaking , physics , quantum mechanics , quark , biology , nambu–jona lasinio model , genetics
Chiral optical metamaterials with delicate structures are in high demand in various fields because of their strong light–matter interactions. Recently, a scalable strategy for the synthesis of chiral plasmonic nanoparticles (NPs) using amino acids and peptides has been reported. Reported herein, 3D chiral gold NPs were synthesized using dipeptide γ‐Glu‐Cys and Cys‐Gly and analyzed crystallographically. The γ‐Glu‐Cys‐directed NPs present a cube‐like outline with a protruding chiral wing. In comparison, the NPs synthesized with Cys‐Gly exhibited a rhombic dodecahedron‐like outline with curved edges and elliptical cavities on each face. Morphology analysis of intermediates indicated that γ‐Glu‐Cys generated an intermediate concave hexoctahedron morphology, while Cys‐Gly formed a concave rhombic dodecahedron. NPs synthesized with Cys‐Gly are named 432 helicoid V because of their unique morphology and growth pathway.