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High-Yield Gold Nanohydrangeas on Three-Dimensional Carbon Nanotube Foams for Surface-Enhanced Raman Scattering Sensors
[Image: see text] Recently, carbon nanomaterial-supported plasmonic nanocrystals used as high-performance surface-enhanced Raman scattering (SERS) substrates have attracted increasing attention due to their ultra-high sensitivity of detection. However, most of the work focuses on the design of 2-D p...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10399187/ https://www.ncbi.nlm.nih.gov/pubmed/37546592 http://dx.doi.org/10.1021/acsomega.3c01802 |
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author | Yang, Rong Zhang, Zhen Miao, Naiqian Fang, Weichen Xiao, Zuo Shen, Xiaodong Xin, Wenbo |
author_facet | Yang, Rong Zhang, Zhen Miao, Naiqian Fang, Weichen Xiao, Zuo Shen, Xiaodong Xin, Wenbo |
author_sort | Yang, Rong |
collection | PubMed |
description | [Image: see text] Recently, carbon nanomaterial-supported plasmonic nanocrystals used as high-performance surface-enhanced Raman scattering (SERS) substrates have attracted increasing attention due to their ultra-high sensitivity of detection. However, most of the work focuses on the design of 2-D planar substrates with traditional plasmonic structures, such as nanoparticles, nanorods, nanowires, and so forth. Here, we report a novel strategy for the preparation of high-yield Au nanohydrangeas on three-dimensional porous polydopamine (PDA)/polyvinyl alcohol (PVA)/carbon nanotube (CNT) foams. The structures and growth mechanisms of these specific Au nanocrystals are systematically investigated. PDA plays the role of both a reducing agent as well as an anchoring site for Au nanohydrangeas’ growth. We also show that the ratio of surfactant KBr to the gold precursor (HAuCl(4)) is key to obtain these structures in a manner of high production. Moreover, the substrate of the CNT foam–Au nanohydrangea hybrid can be employed as SERS sensors and can detect the analytes down to 10(–9) M. |
format | Online Article Text |
id | pubmed-10399187 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-103991872023-08-04 High-Yield Gold Nanohydrangeas on Three-Dimensional Carbon Nanotube Foams for Surface-Enhanced Raman Scattering Sensors Yang, Rong Zhang, Zhen Miao, Naiqian Fang, Weichen Xiao, Zuo Shen, Xiaodong Xin, Wenbo ACS Omega [Image: see text] Recently, carbon nanomaterial-supported plasmonic nanocrystals used as high-performance surface-enhanced Raman scattering (SERS) substrates have attracted increasing attention due to their ultra-high sensitivity of detection. However, most of the work focuses on the design of 2-D planar substrates with traditional plasmonic structures, such as nanoparticles, nanorods, nanowires, and so forth. Here, we report a novel strategy for the preparation of high-yield Au nanohydrangeas on three-dimensional porous polydopamine (PDA)/polyvinyl alcohol (PVA)/carbon nanotube (CNT) foams. The structures and growth mechanisms of these specific Au nanocrystals are systematically investigated. PDA plays the role of both a reducing agent as well as an anchoring site for Au nanohydrangeas’ growth. We also show that the ratio of surfactant KBr to the gold precursor (HAuCl(4)) is key to obtain these structures in a manner of high production. Moreover, the substrate of the CNT foam–Au nanohydrangea hybrid can be employed as SERS sensors and can detect the analytes down to 10(–9) M. American Chemical Society 2023-07-21 /pmc/articles/PMC10399187/ /pubmed/37546592 http://dx.doi.org/10.1021/acsomega.3c01802 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Yang, Rong Zhang, Zhen Miao, Naiqian Fang, Weichen Xiao, Zuo Shen, Xiaodong Xin, Wenbo High-Yield Gold Nanohydrangeas on Three-Dimensional Carbon Nanotube Foams for Surface-Enhanced Raman Scattering Sensors |
title | High-Yield Gold
Nanohydrangeas on Three-Dimensional
Carbon Nanotube Foams for Surface-Enhanced Raman Scattering Sensors |
title_full | High-Yield Gold
Nanohydrangeas on Three-Dimensional
Carbon Nanotube Foams for Surface-Enhanced Raman Scattering Sensors |
title_fullStr | High-Yield Gold
Nanohydrangeas on Three-Dimensional
Carbon Nanotube Foams for Surface-Enhanced Raman Scattering Sensors |
title_full_unstemmed | High-Yield Gold
Nanohydrangeas on Three-Dimensional
Carbon Nanotube Foams for Surface-Enhanced Raman Scattering Sensors |
title_short | High-Yield Gold
Nanohydrangeas on Three-Dimensional
Carbon Nanotube Foams for Surface-Enhanced Raman Scattering Sensors |
title_sort | high-yield gold
nanohydrangeas on three-dimensional
carbon nanotube foams for surface-enhanced raman scattering sensors |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10399187/ https://www.ncbi.nlm.nih.gov/pubmed/37546592 http://dx.doi.org/10.1021/acsomega.3c01802 |
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