Flexing Piezoelectric Diphenylalanine–Plasmonic Metal Nanocomposites to Increase SERS Signal Strength
Source abstract
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.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Advanced biosensing and bioanalysis techniques · Nanocluster Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
School of Physics, AMBER and CRANN Institute, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
Funding
Science Foundation Ireland · European Regional Development Fund · H2020 Marie Sklodowska-Curie Actions · China Scholarship Council · Ministry of Education - Kingdom of Saudi Arabi
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