Fluorescence enhancement and end-to-end assembly of bisacridinedione-gold nanorods by calcium ions

Chemphyschem. 2012 Oct 22;13(15):3445-8. doi: 10.1002/cphc.201200433. Epub 2012 Aug 6.

Abstract

Gold nanorod end-to-end assembly is demonstrated by the selective complexation of a bisacridinedione foldamer with Ca(2+). This setup can be applied as a chemosensor for Ca(2+) ions, as the complex shows selective red-shifting of the nanorod plasmon peak and enhancement in fluorescence from the acridinedione moieties upon exposure to Ca(2+) .

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acridines / chemistry*
  • Calcium / chemistry
  • Fluorescence
  • Gold / chemistry*
  • Ions
  • Microscopy, Electron, Transmission
  • Models, Molecular
  • Nanotechnology / methods*
  • Nanotubes / chemistry*

Substances

  • Acridines
  • Ions
  • Gold
  • Calcium