Enhanced optical asymmetry in supramolecular chiroplasmonic assemblies with long-range order

Autor:	André Farias de Moura, Jun Lu, Ning-Ning Zhang, Naomi S. Ramesar, Yao Xue, Kalil Bernardino, Tianmeng Sun, Zheng Hu, Kun Liu, Nicholas A. Kotov, Shuhan Liu, Weverson R. Gomes
Rok vydání:	2021
Předmět:	Plasmonic nanoparticles Circular dichroism Multidisciplinary Scattering media_common.quotation_subject Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Antiparallel (biochemistry) 01 natural sciences Asymmetry 0104 chemical sciences Liquid crystal Chemical physics Nanorod 0210 nano-technology media_common
Zdroj:	Science. 371:1368-1374
ISSN:	1095-9203 0036-8075
Popis:	Nanorod alignment for optical asymmetry The high polarizability of chiral nanoassemblies of plasmonic nanoparticles can lead to strong chiral dichroism, but strong light scattering causes the fraction of polarized photons generated, as measured by g-factors, to be much lower than that for chiral liquid crystals. Lu et al. used supramolecular interactions of gold nanorods with human islet amyloid peptides to assemble metallic superstructures with unusually high cholesteric order (see the Perspective by Nam and Kim). The long, straight helices increased the g-factor by 4600-fold, and this effect was used to screen small-molecule binding to amyloids. Science , this issue p. 1368 ; see also p. 1311
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32c2033837f2467368025b92025976ad https://doi.org/10.1126/science.abd8576 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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