Ionic-like behavior of oppositely charged nanoparticles

Alexander M. Kalsin, Bartlomiej Kowalczyk, Stoyan K. Smoukov, Rafal Klajn, Bartosz A. Grzybowski

Research output: Contribution to journalArticlepeer-review

95 Citations (Scopus)


Mixtures of oppositely charged nanoparticles of various sizes and charge ratios precipitate only at the point of electroneutrality. This phenomenonspecific to the nanoscale and reminiscent of threshold precipitation of ionsis a consequence of the formation of core-and-shell nanoparticle aggregates, in which the shells are composed of like-charged particles and are stabilized by efficient electrostatic screening.

Original languageEnglish
Pages (from-to)15046-15047
Number of pages2
JournalJournal of the American Chemical Society
Issue number47
Publication statusPublished - Nov 29 2006

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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