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Selected Works of Vincent Rotello
Article
Gold nanoparticle-PPE constructs as biomolecular material mimics: understanding the electrostatic and hydrophobic interactions
Soft Matter (2009)
  • RL Phillips
  • OR Miranda
  • DE Mortenson
  • C Subramani
  • VM Rotello
  • UHF Bunz
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Abstract

Eleven cationic, monolayer-protected quaternary ammonium-functionalized gold nanoparticles (ANPs) were prepared and investigated for their ability to quench the fluorescence of a poly(p-phenyleneethynylene) (PPE) that features carboxylate groups to enable electrostatic interactions with the ANPs. Depending upon their structures, the ANPs displayed binding constants to the PPE from 8 × 107 to 1010 M−1, with particularly high affinity observed with aromatic functionalized ANPs capable of aromatic stacking. These binding constants were obtained by analyzing the quenching data using a modified Stern–Volmer formalism.

Disciplines
Publication Date
January 1, 2009
Citation Information
RL Phillips, OR Miranda, DE Mortenson, C Subramani, et al.. "Gold nanoparticle-PPE constructs as biomolecular material mimics: understanding the electrostatic and hydrophobic interactions" Soft Matter Vol. 5 Iss. 3 (2009)
Available at: http://works.bepress.com/vincent_rotello/27/