Innovative fabrication of a Au nanoparticle-decorated SiO2 mask and its activity on surface-enhanced Raman scattering.
Identifieur interne : 000134 ( Main/Exploration ); précédent : 000133; suivant : 000135Innovative fabrication of a Au nanoparticle-decorated SiO2 mask and its activity on surface-enhanced Raman scattering.
Auteurs : RBID : pubmed:24575422Abstract
Surface-enhanced Raman scattering (SERS) utilizing the well-defined localized surface plasmon resonance (LSPR) of Ag and Au nanoparticles (NPs) under resonant irradiation has emerged as a promising spectroscopy technique for providing vibrational information on trace molecules. The Raman scattering intensity from molecules close to the surface of these finely divided metals can be significantly enhanced by a factor of more than 10(6). In addition to the high sensitivity, the reproducibility of the SERS signal is also an important parameter for its reliable application. In this work, we report on the innovative and facile fabrication of a Au NP-decorated SiO2 mask coated on indium tin oxide (ITO) glass as a SERS array substrate. First, a highly ordered porous SiO2 mask with pore sizes of 350 nm in diameter and wall thickness of 60 nm was deposited on ITO glass by using spin coating. Then, Au NPs were controllably decorated into the pores of the conductive ITO glass-bottomed SiO2 mask by using sonoelectrochemical deposition-dissolution cycling (SEDDC). Experimental results indicate that the SERS effect of Rhodamine 6G (R6G) observed on this developed substrate increases with an increase in the deposition time of Au NPs in SEDDC. The corresponding optimal enhancement factor (EF) that is obtained is ca. 6.5 × 10(7). Significantly, this system achieves an optimal reproducibility under a medium-length deposition time of Au NPs in SEDDC with a relative standard deviation (RSD) of 12% for measurements of five spots on different areas. The low RSD of the SERS signal and the large EF suggest that the developed array system can serve as an excellent spectroscopy platform for practical applications in analytical chemistry.
DOI: 10.1039/c3an02089d
PubMed: 24575422
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Innovative fabrication of a Au nanoparticle-decorated SiO2 mask and its activity on surface-enhanced Raman scattering.</title><author><name sortKey="Chen, Liang Yih" uniqKey="Chen L">Liang-Yih Chen</name><affiliation wicri:level="1"><nlm:affiliation>Department of Chemical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 10607, Taiwan.</nlm:affiliation><country xml:lang="fr">République de Chine (Taïwan)</country><wicri:regionArea>Department of Chemical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 10607</wicri:regionArea></affiliation></author><author><name sortKey="Yang, Kuang Hsuan" uniqKey="Yang K">Kuang-Hsuan Yang</name></author><author><name sortKey="Chen, Hsiao Chien" uniqKey="Chen H">Hsiao-Chien Chen</name></author><author><name sortKey="Liu, Yu Chuan" uniqKey="Liu Y">Yu-Chuan Liu</name></author><author><name sortKey="Chen, Ching Hsiang" uniqKey="Chen C">Ching-Hsiang Chen</name></author><author><name sortKey="Chen, Qing Ye" uniqKey="Chen Q">Qing-Ye Chen</name></author></titleStmt><publicationStmt><date when="2014">2014</date><idno type="doi">10.1039/c3an02089d</idno><idno type="RBID">pubmed:24575422</idno><idno type="pmid">24575422</idno><idno type="wicri:Area/Main/Corpus">000141</idno><idno type="wicri:Area/Main/Curation">000141</idno><idno type="wicri:Area/Main/Exploration">000134</idno></publicationStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Surface-enhanced Raman scattering (SERS) utilizing the well-defined localized surface plasmon resonance (LSPR) of Ag and Au nanoparticles (NPs) under resonant irradiation has emerged as a promising spectroscopy technique for providing vibrational information on trace molecules. The Raman scattering intensity from molecules close to the surface of these finely divided metals can be significantly enhanced by a factor of more than 10(6). In addition to the high sensitivity, the reproducibility of the SERS signal is also an important parameter for its reliable application. In this work, we report on the innovative and facile fabrication of a Au NP-decorated SiO2 mask coated on indium tin oxide (ITO) glass as a SERS array substrate. First, a highly ordered porous SiO2 mask with pore sizes of 350 nm in diameter and wall thickness of 60 nm was deposited on ITO glass by using spin coating. Then, Au NPs were controllably decorated into the pores of the conductive ITO glass-bottomed SiO2 mask by using sonoelectrochemical deposition-dissolution cycling (SEDDC). Experimental results indicate that the SERS effect of Rhodamine 6G (R6G) observed on this developed substrate increases with an increase in the deposition time of Au NPs in SEDDC. The corresponding optimal enhancement factor (EF) that is obtained is ca. 6.5 × 10(7). Significantly, this system achieves an optimal reproducibility under a medium-length deposition time of Au NPs in SEDDC with a relative standard deviation (RSD) of 12% for measurements of five spots on different areas. The low RSD of the SERS signal and the large EF suggest that the developed array system can serve as an excellent spectroscopy platform for practical applications in analytical chemistry.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="In-Process"><PMID Version="1">24575422</PMID><DateCreated><Year>2014</Year><Month>03</Month><Day>18</Day></DateCreated><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1364-5528</ISSN><JournalIssue CitedMedium="Internet"><Volume>139</Volume><Issue>8</Issue><PubDate><Year>2014</Year><Month>Apr</Month><Day>21</Day></PubDate></JournalIssue><Title>The Analyst</Title><ISOAbbreviation>Analyst</ISOAbbreviation></Journal><ArticleTitle>Innovative fabrication of a Au nanoparticle-decorated SiO2 mask and its activity on surface-enhanced Raman scattering.</ArticleTitle><Pagination><MedlinePgn>1929-37</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1039/c3an02089d</ELocationID><Abstract><AbstractText>Surface-enhanced Raman scattering (SERS) utilizing the well-defined localized surface plasmon resonance (LSPR) of Ag and Au nanoparticles (NPs) under resonant irradiation has emerged as a promising spectroscopy technique for providing vibrational information on trace molecules. The Raman scattering intensity from molecules close to the surface of these finely divided metals can be significantly enhanced by a factor of more than 10(6). In addition to the high sensitivity, the reproducibility of the SERS signal is also an important parameter for its reliable application. In this work, we report on the innovative and facile fabrication of a Au NP-decorated SiO2 mask coated on indium tin oxide (ITO) glass as a SERS array substrate. First, a highly ordered porous SiO2 mask with pore sizes of 350 nm in diameter and wall thickness of 60 nm was deposited on ITO glass by using spin coating. Then, Au NPs were controllably decorated into the pores of the conductive ITO glass-bottomed SiO2 mask by using sonoelectrochemical deposition-dissolution cycling (SEDDC). Experimental results indicate that the SERS effect of Rhodamine 6G (R6G) observed on this developed substrate increases with an increase in the deposition time of Au NPs in SEDDC. The corresponding optimal enhancement factor (EF) that is obtained is ca. 6.5 × 10(7). Significantly, this system achieves an optimal reproducibility under a medium-length deposition time of Au NPs in SEDDC with a relative standard deviation (RSD) of 12% for measurements of five spots on different areas. The low RSD of the SERS signal and the large EF suggest that the developed array system can serve as an excellent spectroscopy platform for practical applications in analytical chemistry.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Chen</LastName><ForeName>Liang-Yih</ForeName><Initials>LY</Initials><Affiliation>Department of Chemical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 10607, Taiwan.</Affiliation></Author><Author ValidYN="Y"><LastName>Yang</LastName><ForeName>Kuang-Hsuan</ForeName><Initials>KH</Initials></Author><Author ValidYN="Y"><LastName>Chen</LastName><ForeName>Hsiao-Chien</ForeName><Initials>HC</Initials></Author><Author ValidYN="Y"><LastName>Liu</LastName><ForeName>Yu-Chuan</ForeName><Initials>YC</Initials></Author><Author ValidYN="Y"><LastName>Chen</LastName><ForeName>Ching-Hsiang</ForeName><Initials>CH</Initials></Author><Author ValidYN="Y"><LastName>Chen</LastName><ForeName>Qing-Ye</ForeName><Initials>QY</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType><PublicationType>Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Analyst</MedlineTA><NlmUniqueID>0372652</NlmUniqueID><ISSNLinking>0003-2654</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2014</Year><Month>2</Month><Day>28</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>2</Month><Day>28</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>2</Month><Day>28</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1039/c3an02089d</ArticleId><ArticleId IdType="pubmed">24575422</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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