Flexing Piezoelectric Diphenylalanine-Plasmonic Metal Nanocomposites to Increase SERS Signal Strength

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Title: Flexing Piezoelectric Diphenylalanine-Plasmonic Metal Nanocomposites to Increase SERS Signal Strength
Authors: Almohammed, SawsanFularz, AgataZhang, FengyuanAlvarez-Ruiz, DianaRodriguez, Brian J.Rice, James H.et al.
Permanent link: http://hdl.handle.net/10197/11995
Date: 15-Oct-2020
Online since: 2021-03-02T15:21:03Z
Abstract: Piezoelectric quasi-1D peptide nanotubes and plasmonic metal nanoparticles are combined to create a flexible and self-energized surface-enhanced Raman spectroscopy (SERS) substrate that strengthens SERS signal intensities by over an order of magnitude compared to an unflexed substrate. The platform is used to sense bovine serum albumin, lysozyme, glucose, and adenine. Finite-element electromagnetic modeling indicates that the signal enhancement results from piezoelectric-induced charge, which is mechanically activated via substrate bending. The results presented here open the possibility of using peptide nanotubes on conformal substrates for in situ SERS detection.
Funding Details: European Commission Horizon 2020
European Commission - European Regional Development Fund
Science Foundation Ireland
Funding Details: Ministry of Higher Education of Saudi Arabia
China Scholarship Council
Type of material: Journal Article
Publisher: American Chemical Society
Journal: ACS Applied Materials & Interfaces
Volume: 12
Issue: 43
Start page: 48874
End page: 48881
Copyright (published version): 2020 American Chemical Society
Keywords: DiphenylalanineNanostructuresPeptidePiezoelectricSelf-energizedSurface-enhanced Raman spectroscopy
DOI: 10.1021/acsami.0c15498
Language: en
Status of Item: Peer reviewed
ISSN: 1944-8244
This item is made available under a Creative Commons License: https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Appears in Collections:Conway Institute Research Collection
Physics Research Collection

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