Writing self-erasing images using metastable nanoparticle "inks"

Rafal Klajn, Paul J. Wesson, Kyle J.M. Bishop, Bartosz A. Grzybowski

Research output: Contribution to journalArticle

216 Citations (Scopus)

Abstract

Mission Impossible: Metal nanoparticles (NPs) coated with photoresponsive ligands are used as "inks" for selferasing "paper" whereby light-induced self-assembly of the NPs is transduced into local color changes (see picture). Depending on the degree of self-assembly, multicolor images can be written using only one type of NP ink. Duration of image erasure is regulated by the surface concentration of photoactive groups and can range from seconds to days.

Original languageEnglish
Pages (from-to)7035-7039
Number of pages5
JournalAngewandte Chemie - International Edition
Volume48
Issue number38
DOIs
Publication statusPublished - Sep 7 2009

Keywords

  • Gold
  • Nanoparticles
  • Photochromlsm
  • Self-assembly
  • Silver

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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