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Ultrasensitive flower-like TiO(2)/Ag substrate for SERS detection of pigments and melamine

TiO(2) flower like nanomaterials (FLNMs) are fabricated via a hydrothermal method and Ag nanoparticles (NPs) are deposited via electron beam evaporation. Several biological pigments (CV, R6G and RhB) are selected as target molecules to investigate their surface enhanced Raman scattering (SERS) prope...

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Autores principales: Yang, Weiye, Ou, Quanhong, Li, Chenyan, Cheng, Mingming, Li, Weijun, Liu, Yingkai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8982166/
https://www.ncbi.nlm.nih.gov/pubmed/35424692
http://dx.doi.org/10.1039/d1ra08128d
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author Yang, Weiye
Ou, Quanhong
Li, Chenyan
Cheng, Mingming
Li, Weijun
Liu, Yingkai
author_facet Yang, Weiye
Ou, Quanhong
Li, Chenyan
Cheng, Mingming
Li, Weijun
Liu, Yingkai
author_sort Yang, Weiye
collection PubMed
description TiO(2) flower like nanomaterials (FLNMs) are fabricated via a hydrothermal method and Ag nanoparticles (NPs) are deposited via electron beam evaporation. Several biological pigments (CV, R6G and RhB) are selected as target molecules to investigate their surface enhanced Raman scattering (SERS) property. The results demonstrate ultrasensitivity and high reproducibility. They reveal that the limit of detection (LOD) is 4.17 × 10(−16) M and the enhancement factor (EF) is 2.87 × 10(10) for CV, and the LOD is 5.01 × 10(−16) M and 7.94 × 10(−14) M for R6G and RhB, respectively. To assess the reproducibility on TiO(2)/Ag FLNMs SERS substrates, they are tested with 1.0 × 10(−13) M of CV, 1.0 × 10(−13) M of R6G and 1.0 × 10(−11) M of RhB, respectively. The relative standard deviations (RSD) are less than 12.93%, 13.52% and 11.74% for CV, R6G and RhB, respectively. In addition, we carry out melamine detection and the LOD is up to 7.41 × 10(−10) M, which is over 1000 times lower than the severest standards in the world. Therefore, the obtained TiO(2) FLNMs have potential application in detecting illegal food additives.
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spelling pubmed-89821662022-04-13 Ultrasensitive flower-like TiO(2)/Ag substrate for SERS detection of pigments and melamine Yang, Weiye Ou, Quanhong Li, Chenyan Cheng, Mingming Li, Weijun Liu, Yingkai RSC Adv Chemistry TiO(2) flower like nanomaterials (FLNMs) are fabricated via a hydrothermal method and Ag nanoparticles (NPs) are deposited via electron beam evaporation. Several biological pigments (CV, R6G and RhB) are selected as target molecules to investigate their surface enhanced Raman scattering (SERS) property. The results demonstrate ultrasensitivity and high reproducibility. They reveal that the limit of detection (LOD) is 4.17 × 10(−16) M and the enhancement factor (EF) is 2.87 × 10(10) for CV, and the LOD is 5.01 × 10(−16) M and 7.94 × 10(−14) M for R6G and RhB, respectively. To assess the reproducibility on TiO(2)/Ag FLNMs SERS substrates, they are tested with 1.0 × 10(−13) M of CV, 1.0 × 10(−13) M of R6G and 1.0 × 10(−11) M of RhB, respectively. The relative standard deviations (RSD) are less than 12.93%, 13.52% and 11.74% for CV, R6G and RhB, respectively. In addition, we carry out melamine detection and the LOD is up to 7.41 × 10(−10) M, which is over 1000 times lower than the severest standards in the world. Therefore, the obtained TiO(2) FLNMs have potential application in detecting illegal food additives. The Royal Society of Chemistry 2022-03-02 /pmc/articles/PMC8982166/ /pubmed/35424692 http://dx.doi.org/10.1039/d1ra08128d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Yang, Weiye
Ou, Quanhong
Li, Chenyan
Cheng, Mingming
Li, Weijun
Liu, Yingkai
Ultrasensitive flower-like TiO(2)/Ag substrate for SERS detection of pigments and melamine
title Ultrasensitive flower-like TiO(2)/Ag substrate for SERS detection of pigments and melamine
title_full Ultrasensitive flower-like TiO(2)/Ag substrate for SERS detection of pigments and melamine
title_fullStr Ultrasensitive flower-like TiO(2)/Ag substrate for SERS detection of pigments and melamine
title_full_unstemmed Ultrasensitive flower-like TiO(2)/Ag substrate for SERS detection of pigments and melamine
title_short Ultrasensitive flower-like TiO(2)/Ag substrate for SERS detection of pigments and melamine
title_sort ultrasensitive flower-like tio(2)/ag substrate for sers detection of pigments and melamine
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8982166/
https://www.ncbi.nlm.nih.gov/pubmed/35424692
http://dx.doi.org/10.1039/d1ra08128d
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