Enhancement of Paramagnetic Relaxation by Photoexcited Gold Nanorods. Sci Rep 2016 Apr 13;6:24101
Date
04/14/2016Pubmed ID
27071507Pubmed Central ID
PMC4829829DOI
10.1038/srep24101Abstract
Electron spin resonance (ESR) spectroscopy was used to investigate the switchable, light-dependent effects of gold nanorods (GNRs) on paramagnetic properties of nitroxide spin probes. The photoexcited GNRs enhanced the spin-spin and spin-lattice relaxations of nitroxide spin probes. It was shown that molecular oxygen plays the key role in this process. Our results demonstrate that ESR is a powerful tool for investigating the events following photoexcitation of GNRs. The novel light-controlled effects observed for GNRs on paramagnetic properties and activities of surrounding molecules have a number of significant applications where oxygen sensing and oxygen activity is important.
Author List
Wen T, Wamer WG, Subczynski WK, Hou S, Wu X, Yin JJAuthor
Witold K. Subczynski PhD Professor in the Biophysics department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
Electron Spin Resonance SpectroscopyGold
Light
Metal Nanoparticles
Nanotubes
Oxygen
