Polypyrrole/Graphene Quantum Dot Composites as a Sensor Media for Epinephrine
DC Field | Value | Language |
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dc.contributor.author | Le, Thi Hoa | - |
dc.contributor.author | Lee, Dal Ho | - |
dc.contributor.author | Kim, Ji Hyeon | - |
dc.contributor.author | Park, Sang Joon | - |
dc.date.available | 2020-03-03T06:41:51Z | - |
dc.date.created | 2020-02-24 | - |
dc.date.issued | 2020-07 | - |
dc.identifier.issn | 1533-4880 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/17592 | - |
dc.description.abstract | In this paper, we discuss a new biosensor for simple and rapid detection of epinephrine (EP) based on polypyrrole/graphene quantum dot (PPy/GQD) composites. Presence of amine groups on the PPy backbone leads to surface passivation of GQDs. As a result, the composites exhibit strong fluorescence emission, which can be up to three times that of pristine GQDs. In neutral to alkaline solution, the EP on the surface of PPy/GQD composites is converted to a quinone, which triggers the fluorescence quenching of PPy/GQD composites via a photoinduced electron transfer process. Hence, the concentration of EP can be effectively monitored by measuring the variation in the fluorescence signal of PPy/GQD composites. The quenched fluorescence intensity of PPy/GQDs was proportional to the concentration of EP (0.7-400 mu M). We used our method to determine the concentration of EP in human serum samples and obtained satisfactory results. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER SCIENTIFIC PUBLISHERS | - |
dc.relation.isPartOf | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.title | Polypyrrole/Graphene Quantum Dot Composites as a Sensor Media for Epinephrine | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000508646300006 | - |
dc.identifier.doi | 10.1166/jnn.2020.17588 | - |
dc.identifier.bibliographicCitation | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.20, no.7, pp.4005 - 4010 | - |
dc.description.isOpenAccess | N | - |
dc.citation.endPage | 4010 | - |
dc.citation.startPage | 4005 | - |
dc.citation.title | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.citation.volume | 20 | - |
dc.citation.number | 7 | - |
dc.contributor.affiliatedAuthor | Le, Thi Hoa | - |
dc.contributor.affiliatedAuthor | Lee, Dal Ho | - |
dc.contributor.affiliatedAuthor | Kim, Ji Hyeon | - |
dc.contributor.affiliatedAuthor | Park, Sang Joon | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Graphene Quantum Dots | - |
dc.subject.keywordAuthor | Polypyrrole | - |
dc.subject.keywordAuthor | Epinephrine | - |
dc.subject.keywordAuthor | Fluorescence Quenching | - |
dc.subject.keywordPlus | PROBE | - |
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 | - |
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