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Grzybowski, Bartosz A.
School of Natural Science
Research Interests
  • Nano science
  • Nanomaterials
  • Programmable Reactions
  • Chemical Networks
  • Cellular Dynamics

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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
Pillai, Pramod P.Kowalczyk, BartlomiejGrzybowski, Bartosz A.
Issue Date
2016-01
Publisher
ROYAL SOC CHEMISTRY
Citation
NANOSCALE, v.8, no.1, pp.157 - 161
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.
URI
https://scholarworks.unist.ac.kr/handle/201301/18178
URL
http://pubs.rsc.org/en/Content/ArticleLanding/2016/NR/C5NR06983A
DOI
10.1039/c5nr06983a
ISSN
2040-3364
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CHM_Journal Papers
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