Plasmonic Gold Nanoisland Film for Bacterial Theranostics

Plasmonic nanomaterials have been intensively explored for applications in biomedical detection and therapy for human sustainability. Herein, plasmonic gold nanoisland (NI) film (AuNIF) was fabricated onto a glass substrate by a facile seed-mediated growth approach. The structure of the tortuous gol...

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Autores principales:	Shih-Hua Tan, Sibidou Yougbaré, Hsuan-Ya Tao, Che-Chang Chang, Tsung-Rong Kuo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	gold nanoisland film surface-enhanced Raman scattering detection photothermal therapy theranostics Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/961b70d0303a45f2ace1e6111c999357
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spelling	oai:doaj.org-article:961b70d0303a45f2ace1e6111c9993572021-11-25T18:32:45ZPlasmonic Gold Nanoisland Film for Bacterial Theranostics10.3390/nano111131392079-4991https://doaj.org/article/961b70d0303a45f2ace1e6111c9993572021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3139https://doaj.org/toc/2079-4991Plasmonic nanomaterials have been intensively explored for applications in biomedical detection and therapy for human sustainability. Herein, plasmonic gold nanoisland (NI) film (AuNIF) was fabricated onto a glass substrate by a facile seed-mediated growth approach. The structure of the tortuous gold NIs of the AuNIF was demonstrated by scanning electron microscopy and energy-dispersive X-ray spectroscopy. Based on the ultraviolet-visible spectrum, the AuNIF revealed plasmonic absorption with maximum intensity at 624 nm. With the change to the surface topography created by the NIs, the capture efficiency of <i>Escherichia coli</i> (<i>E. coli</i>) by the AuNIF was significantly increased compared to that of the glass substrate. The AuNIF was applied as a surface-enhanced Raman scattering (SERS) substrate to enhance the Raman signal of <i>E. coli</i>. Moreover, the plasmonic AuNIF exhibited a superior photothermal effect under irradiation with simulated AM1.5 sunlight. For photothermal therapy, the AuNIF also displayed outstanding efficiency in the photothermal killing of <i>E. coli</i>. Using a combination of SERS detection and photothermal therapy, the AuNIF could be a promising platform for bacterial theranostics.Shih-Hua TanSibidou YougbaréHsuan-Ya TaoChe-Chang ChangTsung-Rong KuoMDPI AGarticlegold nanoisland filmsurface-enhanced Raman scatteringdetectionphotothermal therapytheranosticsChemistryQD1-999ENNanomaterials, Vol 11, Iss 3139, p 3139 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	gold nanoisland film surface-enhanced Raman scattering detection photothermal therapy theranostics Chemistry QD1-999
spellingShingle	gold nanoisland film surface-enhanced Raman scattering detection photothermal therapy theranostics Chemistry QD1-999 Shih-Hua Tan Sibidou Yougbaré Hsuan-Ya Tao Che-Chang Chang Tsung-Rong Kuo Plasmonic Gold Nanoisland Film for Bacterial Theranostics
description	Plasmonic nanomaterials have been intensively explored for applications in biomedical detection and therapy for human sustainability. Herein, plasmonic gold nanoisland (NI) film (AuNIF) was fabricated onto a glass substrate by a facile seed-mediated growth approach. The structure of the tortuous gold NIs of the AuNIF was demonstrated by scanning electron microscopy and energy-dispersive X-ray spectroscopy. Based on the ultraviolet-visible spectrum, the AuNIF revealed plasmonic absorption with maximum intensity at 624 nm. With the change to the surface topography created by the NIs, the capture efficiency of <i>Escherichia coli</i> (<i>E. coli</i>) by the AuNIF was significantly increased compared to that of the glass substrate. The AuNIF was applied as a surface-enhanced Raman scattering (SERS) substrate to enhance the Raman signal of <i>E. coli</i>. Moreover, the plasmonic AuNIF exhibited a superior photothermal effect under irradiation with simulated AM1.5 sunlight. For photothermal therapy, the AuNIF also displayed outstanding efficiency in the photothermal killing of <i>E. coli</i>. Using a combination of SERS detection and photothermal therapy, the AuNIF could be a promising platform for bacterial theranostics.
format	article
author	Shih-Hua Tan Sibidou Yougbaré Hsuan-Ya Tao Che-Chang Chang Tsung-Rong Kuo
author_facet	Shih-Hua Tan Sibidou Yougbaré Hsuan-Ya Tao Che-Chang Chang Tsung-Rong Kuo
author_sort	Shih-Hua Tan
title	Plasmonic Gold Nanoisland Film for Bacterial Theranostics
title_short	Plasmonic Gold Nanoisland Film for Bacterial Theranostics
title_full	Plasmonic Gold Nanoisland Film for Bacterial Theranostics
title_fullStr	Plasmonic Gold Nanoisland Film for Bacterial Theranostics
title_full_unstemmed	Plasmonic Gold Nanoisland Film for Bacterial Theranostics
title_sort	plasmonic gold nanoisland film for bacterial theranostics
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/961b70d0303a45f2ace1e6111c999357
work_keys_str_mv	AT shihhuatan plasmonicgoldnanoislandfilmforbacterialtheranostics AT sibidouyougbare plasmonicgoldnanoislandfilmforbacterialtheranostics AT hsuanyatao plasmonicgoldnanoislandfilmforbacterialtheranostics AT chechangchang plasmonicgoldnanoislandfilmforbacterialtheranostics AT tsungrongkuo plasmonicgoldnanoislandfilmforbacterialtheranostics
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Plasmonic Gold Nanoisland Film for Bacterial Theranostics

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