Optical Properties of Dopamine Molecules with Silver Nanoparticles as Surface-Enhanced Raman Scattering (SERS) Substrates at Different pH Conditions
DC Field | Value | Language |
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dc.contributor.author | Bu, Yanru | - |
dc.contributor.author | Lee, Sang-Wha | - |
dc.date.available | 2020-02-28T22:47:11Z | - |
dc.date.created | 2020-02-06 | - |
dc.date.issued | 2013-09 | - |
dc.identifier.issn | 1533-4880 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/14315 | - |
dc.description.abstract | Silver nanoparticles (Ag NPs) prepared by the citrate reduction method were examined as surface-enhanced Raman scattering (SERS) substrates in the detection of dopamine (DA) molecules at different hydrogen ion concentrations. The aggregation of Ag NPs was influenced by the cross-linking effect of DA molecules as the function of pH of colloidal solution. Somewhat clustering of Ag NPs in a limited pH range (pH 7-9) exhibited the strong red-shift of absorption peak and maximal SERS activity to DA molecules, highlighting the importance of strong electrostatic adsorption and cross-linking effect that allowed DA molecules to reside in the junctions (hot spots) between aggregated Ag NPs. Furthermore, Ag NPs with DA molecules at strongly basic condition (>pH 9) exhibited the relatively high SERS activity as compared to negligible SERS activity at acidic condition (<= pH 5), indicating the important role of oxidized surface of silver NPs which can interact with hydroxyl groups of DA molecules. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER SCIENTIFIC PUBLISHERS | - |
dc.relation.isPartOf | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.subject | AG | - |
dc.subject | SPECTROSCOPY | - |
dc.title | Optical Properties of Dopamine Molecules with Silver Nanoparticles as Surface-Enhanced Raman Scattering (SERS) Substrates at Different pH Conditions | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000323628900006 | - |
dc.identifier.doi | 10.1166/jnn.2013.7644 | - |
dc.identifier.bibliographicCitation | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.13, no.9, pp.5992 - 5996 | - |
dc.identifier.scopusid | 2-s2.0-84885450396 | - |
dc.citation.endPage | 5996 | - |
dc.citation.startPage | 5992 | - |
dc.citation.title | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.citation.volume | 13 | - |
dc.citation.number | 9 | - |
dc.contributor.affiliatedAuthor | Bu, Yanru | - |
dc.contributor.affiliatedAuthor | Lee, Sang-Wha | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | pH | - |
dc.subject.keywordAuthor | Ag Nanoparticles | - |
dc.subject.keywordAuthor | Dopamine | - |
dc.subject.keywordAuthor | SERS | - |
dc.subject.keywordAuthor | Cross-Linking | - |
dc.subject.keywordPlus | AG | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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