Staff View: Unveiling the SERS activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid

Unveiling the SERS activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid

Silver triangular nanoplates (SNPs) have gained much attraction worldwide due to their unique optical properties. In our study, we investigated the growth of SNPs via a modified seed-mediated method with NaBH4 as a primary reductant, ascorbic acid (AA) as a secondary reductant and H2O2 as a seed cor...

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Main Authors:	Anh, Mai Ngoc Tuan, Nguyen, Dinh Tien Dung, Ching, Yern Chee, Thanh, Ngo Vo Ke, Phong, Nguyen Thi Phuong, Nguyen, Dai Hai, Bui, Bao Truc, Nguyen-Le, Minh-Tri
Format:	Article
Published:	Elsevier GmbH 2021
Subjects:	TP Chemical technology
Online Access:	http://eprints.um.edu.my/35927/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117781507&doi=10.1016%2fj.ijleo.2021.168155&partnerID=40&md5=3ca6232883f504c9d59228b18a310ef5
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spelling	my.um.eprints.359272024-07-03T06:58:35Z http://eprints.um.edu.my/35927/ Unveiling the SERS activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid Anh, Mai Ngoc Tuan Nguyen, Dinh Tien Dung Ching, Yern Chee Thanh, Ngo Vo Ke Phong, Nguyen Thi Phuong Nguyen, Dai Hai Bui, Bao Truc Nguyen-Le, Minh-Tri TP Chemical technology Silver triangular nanoplates (SNPs) have gained much attraction worldwide due to their unique optical properties. In our study, we investigated the growth of SNPs via a modified seed-mediated method with NaBH4 as a primary reductant, ascorbic acid (AA) as a secondary reductant and H2O2 as a seed corrosive agent. It was found that small sized spherical seeds with low surface plasmon resonance were obtained in the presence of H2O2. The seed size played a key role for SNPs formation. SNPs size was found to be proportional to the seed size. The experimental results also provided the missing piece of role of AA in the formation of SNPs. The effects of AA on the formation of SNPs in the presence of H2O2 and without H2O2 were investigated via SEM, TEM and UV–Vis measurements. For each case, increasing AA content up to AA:Ag+ ratio of 1.0 would result in increasing the SNPs size and their uniformity. Above that ratio, smaller sized and less uniform SNPs were observed. Smaller sized SNPs fabricated by a seed-mediated method in the presence of H2O2 exhibit stronger SERS enhancement of 4-mercaptobezoic acid than those without H2O2. © 2021 Elsevier GmbH Elsevier GmbH 2021 Article PeerReviewed Anh, Mai Ngoc Tuan and Nguyen, Dinh Tien Dung and Ching, Yern Chee and Thanh, Ngo Vo Ke and Phong, Nguyen Thi Phuong and Nguyen, Dai Hai and Bui, Bao Truc and Nguyen-Le, Minh-Tri (2021) Unveiling the SERS activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid. Optik, 248. ISSN 00304026, https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117781507&doi=10.1016%2fj.ijleo.2021.168155&partnerID=40&md5=3ca6232883f504c9d59228b18a310ef5
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	TP Chemical technology
spellingShingle	TP Chemical technology Anh, Mai Ngoc Tuan Nguyen, Dinh Tien Dung Ching, Yern Chee Thanh, Ngo Vo Ke Phong, Nguyen Thi Phuong Nguyen, Dai Hai Bui, Bao Truc Nguyen-Le, Minh-Tri Unveiling the SERS activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid
description	Silver triangular nanoplates (SNPs) have gained much attraction worldwide due to their unique optical properties. In our study, we investigated the growth of SNPs via a modified seed-mediated method with NaBH4 as a primary reductant, ascorbic acid (AA) as a secondary reductant and H2O2 as a seed corrosive agent. It was found that small sized spherical seeds with low surface plasmon resonance were obtained in the presence of H2O2. The seed size played a key role for SNPs formation. SNPs size was found to be proportional to the seed size. The experimental results also provided the missing piece of role of AA in the formation of SNPs. The effects of AA on the formation of SNPs in the presence of H2O2 and without H2O2 were investigated via SEM, TEM and UV–Vis measurements. For each case, increasing AA content up to AA:Ag+ ratio of 1.0 would result in increasing the SNPs size and their uniformity. Above that ratio, smaller sized and less uniform SNPs were observed. Smaller sized SNPs fabricated by a seed-mediated method in the presence of H2O2 exhibit stronger SERS enhancement of 4-mercaptobezoic acid than those without H2O2. © 2021 Elsevier GmbH
format	Article
author	Anh, Mai Ngoc Tuan Nguyen, Dinh Tien Dung Ching, Yern Chee Thanh, Ngo Vo Ke Phong, Nguyen Thi Phuong Nguyen, Dai Hai Bui, Bao Truc Nguyen-Le, Minh-Tri
author_facet	Anh, Mai Ngoc Tuan Nguyen, Dinh Tien Dung Ching, Yern Chee Thanh, Ngo Vo Ke Phong, Nguyen Thi Phuong Nguyen, Dai Hai Bui, Bao Truc Nguyen-Le, Minh-Tri
author_sort	Anh, Mai Ngoc Tuan
title	Unveiling the SERS activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid
title_short	Unveiling the SERS activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid
title_full	Unveiling the SERS activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid
title_fullStr	Unveiling the SERS activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid
title_full_unstemmed	Unveiling the SERS activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid
title_sort	unveiling the sers activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid
publisher	Elsevier GmbH
publishDate	2021
url	http://eprints.um.edu.my/35927/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-85117781507&doi=10.1016%2fj.ijleo.2021.168155&partnerID=40&md5=3ca6232883f504c9d59228b18a310ef5
_version_	1805881092143579136
score	13.211869

Unveiling the SERS activity of silver triangular nanoplates in the enhanced detection of 4-mercaptobenzoic acid

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