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Bartosz Andrzej Grzybowski
첨단연성물질 연구단
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Self-assembly of like-charged nanoparticles into microscopic crystals

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Title
Self-assembly of like-charged nanoparticles into microscopic crystals
Author(s)
Pillai, PP; Kowalczyk, B; Bartosz A. Grzybowski
Publication Date
2016-01
Journal
NANOSCALE, v.8, no.1, pp.157 - 161
Publisher
ROYAL SOC CHEMISTRY
Abstract
Like-charged nanoparticles, NPs, can assemble in water into large, faceted crystals, each made of several million particles. These NPs are functionalized with mixed monolayers comprising ligands terminating in carboxylic acid group ligands as well as positively charged quaternary ammonium ligands. The latter groups give rise to electrostatic interparticle repulsions which partly offset the hydrogen bonding between the carboxylic acids. It is the balance between these two interactions that ultimately enables self-assembly. Depending on the pH, the particles can crystallize, form aggregates, remain unaggregated or even - in mixtures of two particle types - can "choose" whether to crystallize with like-charged or oppositely charged particles. © The Royal Society of Chemistry 2016
URI
https://pr.ibs.re.kr/handle/8788114/2371
ISSN
2040-3364
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > Journal Papers (저널논문)
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