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Structural Transition-Induced Raman Enhancement in Bioinspired Diphenylalanine Peptide Nanotubes

[Image: see text] Semiconducting materials are increasingly proposed as alternatives to noble metal nanomaterials to enhance Raman scattering. We demonstrate that bioinspired semiconducting diphenylalanine peptide nanotubes annealed through a reported structural transition can support Raman detectio...

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Autores principales: Almohammed, Sawsan, Fularz, Agata, Kanoun, Mohammed Benali, Goumri-Said, Souraya, Aljaafari, Abdullah, Rodriguez, Brian J., Rice, James H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8931724/
https://www.ncbi.nlm.nih.gov/pubmed/35254049
http://dx.doi.org/10.1021/acsami.1c22770
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author Almohammed, Sawsan
Fularz, Agata
Kanoun, Mohammed Benali
Goumri-Said, Souraya
Aljaafari, Abdullah
Rodriguez, Brian J.
Rice, James H.
author_facet Almohammed, Sawsan
Fularz, Agata
Kanoun, Mohammed Benali
Goumri-Said, Souraya
Aljaafari, Abdullah
Rodriguez, Brian J.
Rice, James H.
author_sort Almohammed, Sawsan
collection PubMed
description [Image: see text] Semiconducting materials are increasingly proposed as alternatives to noble metal nanomaterials to enhance Raman scattering. We demonstrate that bioinspired semiconducting diphenylalanine peptide nanotubes annealed through a reported structural transition can support Raman detection of 10(–7) M concentrations for a range of molecules including mononucleotides. The enhancement is attributed to the introduction of electronic states below the conduction band that facilitate charge transfer to the analyte molecule. These results show that organic semiconductor-based materials can serve as platforms for enhanced Raman scattering for chemical sensing. As the sensor is metal-free, the enhancement is achieved without the introduction of electromagnetic surface-enhanced Raman spectroscopy.
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spelling pubmed-89317242022-03-18 Structural Transition-Induced Raman Enhancement in Bioinspired Diphenylalanine Peptide Nanotubes Almohammed, Sawsan Fularz, Agata Kanoun, Mohammed Benali Goumri-Said, Souraya Aljaafari, Abdullah Rodriguez, Brian J. Rice, James H. ACS Appl Mater Interfaces [Image: see text] Semiconducting materials are increasingly proposed as alternatives to noble metal nanomaterials to enhance Raman scattering. We demonstrate that bioinspired semiconducting diphenylalanine peptide nanotubes annealed through a reported structural transition can support Raman detection of 10(–7) M concentrations for a range of molecules including mononucleotides. The enhancement is attributed to the introduction of electronic states below the conduction band that facilitate charge transfer to the analyte molecule. These results show that organic semiconductor-based materials can serve as platforms for enhanced Raman scattering for chemical sensing. As the sensor is metal-free, the enhancement is achieved without the introduction of electromagnetic surface-enhanced Raman spectroscopy. American Chemical Society 2022-03-07 2022-03-16 /pmc/articles/PMC8931724/ /pubmed/35254049 http://dx.doi.org/10.1021/acsami.1c22770 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Almohammed, Sawsan
Fularz, Agata
Kanoun, Mohammed Benali
Goumri-Said, Souraya
Aljaafari, Abdullah
Rodriguez, Brian J.
Rice, James H.
Structural Transition-Induced Raman Enhancement in Bioinspired Diphenylalanine Peptide Nanotubes
title Structural Transition-Induced Raman Enhancement in Bioinspired Diphenylalanine Peptide Nanotubes
title_full Structural Transition-Induced Raman Enhancement in Bioinspired Diphenylalanine Peptide Nanotubes
title_fullStr Structural Transition-Induced Raman Enhancement in Bioinspired Diphenylalanine Peptide Nanotubes
title_full_unstemmed Structural Transition-Induced Raman Enhancement in Bioinspired Diphenylalanine Peptide Nanotubes
title_short Structural Transition-Induced Raman Enhancement in Bioinspired Diphenylalanine Peptide Nanotubes
title_sort structural transition-induced raman enhancement in bioinspired diphenylalanine peptide nanotubes
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8931724/
https://www.ncbi.nlm.nih.gov/pubmed/35254049
http://dx.doi.org/10.1021/acsami.1c22770
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