Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template

UV irradiation of aligned diphenylalanine peptide nanotubes (FF-PNTs) decorated with plasmonic silver nanoparticles (Ag NPs) enables photo-induced surface-enhanced Raman spectroscopy. UV-induced charge transfer facilitates a chemical enhancement that provides up to a 10-fold increase in surface-enha...

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Autores principales: Almohammed, Sawsan, Zhang, Fengyuan, Rodriguez, Brian J., Rice, James H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5832858/
https://www.ncbi.nlm.nih.gov/pubmed/29497167
http://dx.doi.org/10.1038/s41598-018-22269-x
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author Almohammed, Sawsan
Zhang, Fengyuan
Rodriguez, Brian J.
Rice, James H.
author_facet Almohammed, Sawsan
Zhang, Fengyuan
Rodriguez, Brian J.
Rice, James H.
author_sort Almohammed, Sawsan
collection PubMed
description UV irradiation of aligned diphenylalanine peptide nanotubes (FF-PNTs) decorated with plasmonic silver nanoparticles (Ag NPs) enables photo-induced surface-enhanced Raman spectroscopy. UV-induced charge transfer facilitates a chemical enhancement that provides up to a 10-fold increase in surface-enhanced Raman intensity and allows the detection of a wide range of small molecules and low Raman cross-section molecules at concentrations as low as 10(–13) M. The aligned FF-PNT/Ag NP template further prevents photodegradation of the molecules under investigation. Our results demonstrate that FF-PNTs can be used as an alternative material to semiconductors such as titanium dioxide for photo-induced surface-enhanced Raman spectroscopy applications.
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spelling pubmed-58328582018-03-05 Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template Almohammed, Sawsan Zhang, Fengyuan Rodriguez, Brian J. Rice, James H. Sci Rep Article UV irradiation of aligned diphenylalanine peptide nanotubes (FF-PNTs) decorated with plasmonic silver nanoparticles (Ag NPs) enables photo-induced surface-enhanced Raman spectroscopy. UV-induced charge transfer facilitates a chemical enhancement that provides up to a 10-fold increase in surface-enhanced Raman intensity and allows the detection of a wide range of small molecules and low Raman cross-section molecules at concentrations as low as 10(–13) M. The aligned FF-PNT/Ag NP template further prevents photodegradation of the molecules under investigation. Our results demonstrate that FF-PNTs can be used as an alternative material to semiconductors such as titanium dioxide for photo-induced surface-enhanced Raman spectroscopy applications. Nature Publishing Group UK 2018-03-01 /pmc/articles/PMC5832858/ /pubmed/29497167 http://dx.doi.org/10.1038/s41598-018-22269-x Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Almohammed, Sawsan
Zhang, Fengyuan
Rodriguez, Brian J.
Rice, James H.
Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template
title Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template
title_full Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template
title_fullStr Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template
title_full_unstemmed Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template
title_short Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template
title_sort photo-induced surface-enhanced raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5832858/
https://www.ncbi.nlm.nih.gov/pubmed/29497167
http://dx.doi.org/10.1038/s41598-018-22269-x
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AT ricejamesh photoinducedsurfaceenhancedramanspectroscopyfromadiphenylalaninepeptidenanotubemetalnanoparticletemplate

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