Assembly of 6-aza-2-thiothymine on gold nanoparticles for selective and sensitive colorimetric detection of pencycuron in water and food samples
DC Field | Value | Language |
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dc.contributor.author | Kailasa, Suresh Kumar | - |
dc.contributor.author | Thang Phan Nguyen | - |
dc.contributor.author | Baek, Seung Hoon | - |
dc.contributor.author | Le Minh Tu Phan | - |
dc.contributor.author | Rafique, Rafia | - |
dc.contributor.author | Park, Tae Jung | - |
dc.date.accessioned | 2021-12-07T07:40:27Z | - |
dc.date.available | 2021-12-07T07:40:27Z | - |
dc.date.created | 2021-12-07 | - |
dc.date.issued | 2019-12 | - |
dc.identifier.issn | 0039-9140 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/82867 | - |
dc.description.abstract | A facile and novel nanosensor analytical strategy was developed for the colorimetric detection of pencycuron fungicide in rice, potato, cabbage, and water samples based on the pencycuron-induced aggregation of 6-aza-2-thiothymine-functionalized gold nanoparticles (ATT-AuNPs). The ATT-AuNPs exhibited good stability and were characterized with UV-visible spectroscopy, Fourier transform infrared (FT-IR) spectrometry, field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), dynamic light scattering (DLS), and zeta potential techniques. The addition of pencycuron facilitated strong non-covalent interactions (electrostatic, van der Waals, and H bonding) between pencycuron and ATT-AuNPs, inducing a significant red shift in the surface plasmon resonance (SPR) peak of ATT-AuNPs along with a color change from red to blue. A linear equation was established between absorption ratio (A(720)/A(528)) and pencycuron concentration (2.5-100 mu M) with a correlation coefficient (R-2) of 0.9915. The detection limit was calculated to be 0.42 mu M, which was much lower than that of other analytical methods. The designed ATT-AuNP serves as a promising nanosensor for the rapid, simple, and selective label-free colorimetric detection of pencycuron in rice, potato, cabbage, and water samples, is highly sensitive, and does not require sophisticated instruments, tedious sample preparations, and time-consuming separation and pre-concentration procedures. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.relation.isPartOf | TALANTA | - |
dc.title | Assembly of 6-aza-2-thiothymine on gold nanoparticles for selective and sensitive colorimetric detection of pencycuron in water and food samples | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000485856500013 | - |
dc.identifier.doi | 10.1016/j.talanta.2019.06.087 | - |
dc.identifier.bibliographicCitation | TALANTA, v.205 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85068354254 | - |
dc.citation.title | TALANTA | - |
dc.citation.volume | 205 | - |
dc.contributor.affiliatedAuthor | Le Minh Tu Phan | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Pencycuron | - |
dc.subject.keywordAuthor | ATT-AuNPs | - |
dc.subject.keywordAuthor | UV-Visible spectrometry | - |
dc.subject.keywordAuthor | DLS | - |
dc.subject.keywordAuthor | Electron microscopy | - |
dc.subject.keywordPlus | VISUAL DETECTION | - |
dc.subject.keywordPlus | PESTICIDE-RESIDUES | - |
dc.subject.keywordPlus | LIQUID-CHROMATOGRAPHY | - |
dc.subject.keywordPlus | MASS-SPECTROMETRY | - |
dc.subject.keywordPlus | DITHIOCARBAMATE | - |
dc.subject.keywordPlus | VALIDATION | - |
dc.subject.keywordPlus | ASSAY | - |
dc.subject.keywordPlus | IMMUNOASSAY | - |
dc.subject.keywordPlus | RECOGNITION | - |
dc.subject.keywordPlus | HERBICIDE | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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