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Flexing Piezoelectric Diphenylalanine-Plasmonic Metal Nanocomposites to Increase SERS Signal Strength
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| File | Description | Size | Format | |
|---|---|---|---|---|
| Almohammed_ACSAMI_2020.pdf | 3.52 MB | Adobe PDF | Request a copy |
| Title: | Flexing Piezoelectric Diphenylalanine-Plasmonic Metal Nanocomposites to Increase SERS Signal Strength | Authors: | Almohammed, Sawsan; Fularz, Agata; Zhang, Fengyuan; Alvarez-Ruiz, Diana; Rodriguez, 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: | Diphenylalanine; Nanostructures; Peptide; Piezoelectric; Self-energized; Surface-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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