Light-controlled self-assembly of reversible and irreversible nanoparticle suprastructures.
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ABSTRACT:
SUBMITTER: Klajn R
PROVIDER: S-EPMC1965508 | biostudies-literature | 2007 Jun
REPOSITORIES: biostudies-literature
Publications
Light-controlled self-assembly of reversible and irreversible nanoparticle suprastructures.
Klajn Rafal R Bishop Kyle J M KJ Grzybowski Bartosz A BA
Proceedings of the National Academy of Sciences of the United States of America 20070611 25
Nanoparticles (NPs) decorated with ligands combining photoswitchable dipoles and covalent cross-linkers can be assembled by light into organized, three-dimensional suprastructures of various types and sizes. NPs covered with only few photoactive ligands form metastable crystals that can be assembled and disassembled "on demand" by using light of different wavelengths. For higher surface concentrations, self-assembly is irreversible, and the NPs organize into permanently cross-linked structures i ...[more]
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