Issue 34, 2018

Effect of nanosilver surfaces on peptide reactivity towards reactive oxygen species

Abstract

The interaction of a terminal tryptophan residue within collagen mimetic peptides when tethered to nanometric silver surfaces was studied using a combination of steady state spectroscopy, ultrafast spectroscopy, and molecular dynamics experiments. Our findings indicate that the effective interaction between the tryptophan and the metal surface occurs in short-time scales (ps) and it is responsible for improving the colloidal stability of the nanoparticles exposed to free radicals. The extent and efficiency of the interaction depends on factors beyond the peptide length that include conformation and distance from the terminal tryptophan to the metal surface.

Graphical abstract: Effect of nanosilver surfaces on peptide reactivity towards reactive oxygen species

Supplementary files

Article information

Article type
Communication
Submitted
18 May 2018
Accepted
02 Aug 2018
First published
03 Aug 2018

Nanoscale, 2018,10, 15911-15917

Effect of nanosilver surfaces on peptide reactivity towards reactive oxygen species

E. Jacques, M. Ahumada, B. Rector, G. Yousefalizadeh, C. Galaz-Araya, R. Recabarren, K. Stamplecoskie, H. Poblete and E. I. Alarcon, Nanoscale, 2018, 10, 15911 DOI: 10.1039/C8NR04018D

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