Nanoparticle hydrophobicity dictates immune response

Daniel F. Moyano, Meir Goldsmith, David J. Solfiell, Dalit Landesman-Milo, Oscar R. Miranda, Dan Peer, Vincent M. Rotello

Research output: Contribution to journalArticlepeer-review

311 Scopus citations

Abstract

Understanding the interactions of nanomaterials with the immune system is essential for the engineering of new macromolecular systems for in vivo applications. Systematic study of immune activation is challenging due to the complex structure of most macromolecular probes. We present here the use of engineered gold nanoparticles to determine the sole effect of hydrophobicity on the immune response of splenocytes. The gene expression profile of a range of cytokines (immunological reporters) was analyzed against the calculated log P of the nanoparticle headgroups, with an essentially linear increase in immune activity with the increase in hydrophobicity observed in vitro. Consistent behavior was observed with in vivo mouse models, demonstrating the importance of hydrophobicity in immune system activation.

Original languageEnglish (US)
Pages (from-to)3965-3967
Number of pages3
JournalJournal of the American Chemical Society
Volume134
Issue number9
DOIs
StatePublished - Mar 7 2012

ASJC Scopus subject areas

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

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