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Vibrational energy transport through a capping layer of appropriately designed peptide helices over gold nanoparticles


Schade, M; Moretto, A; Donaldson, P M; Toniolo, C; Hamm, P (2010). Vibrational energy transport through a capping layer of appropriately designed peptide helices over gold nanoparticles. Nano Letters, 10(8):3057-3061.

Abstract

We design and characterize spherical gold nanoparticles, which are covalently linked to and completely covered by
3(10)-helical peptides. These helices provide a scaffold to place C-13=O isotope labels at defined distances from the gold surface, which we employ as local thermometers. Probing
these reporter groups with transient infrared spectroscopy, we monitor the vibrational energy flow across the peptide capping layer following excitation of the nanoparticle plasmon resonance.

We design and characterize spherical gold nanoparticles, which are covalently linked to and completely covered by
3(10)-helical peptides. These helices provide a scaffold to place C-13=O isotope labels at defined distances from the gold surface, which we employ as local thermometers. Probing
these reporter groups with transient infrared spectroscopy, we monitor the vibrational energy flow across the peptide capping layer following excitation of the nanoparticle plasmon resonance.

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19 citations in Web of Science®
18 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:August 2010
Deposited On:16 Dec 2010 15:59
Last Modified:05 Apr 2016 14:16
Publisher:American Chemical Society
ISSN:1530-6984
Funders:Swiss National Science Foundation, European Research Council (ERC)
Publisher DOI:https://doi.org/10.1021/nl101580w
Official URL:http://pubs.acs.org/doi/pdf/10.1021/nl101580w
PubMed ID:20698620
Permanent URL: https://doi.org/10.5167/uzh-36130

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