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 | Nguyen, Thang Phan | - |
dc.contributor.author | Baek, Seung Hoon | - |
dc.contributor.author | Tu Phan, Le Minh | - |
dc.contributor.author | Rafique, Rafia | - |
dc.contributor.author | Park, Tae Jung | - |
dc.date.available | 2019-08-19T00:55:58Z | - |
dc.date.issued | 2019-12 | - |
dc.identifier.issn | 0039-9140 | - |
dc.identifier.issn | 1873-3573 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/34089 | - |
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 (A720/A528) and pencycuron concentration (2.5–100 μM) with a correlation coefficient (R2) of 0.9915. The detection limit was calculated to be 0.42 μM, 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. © 2019 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier B.V. | - |
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.identifier.doi | 10.1016/j.talanta.2019.06.087 | - |
dc.identifier.bibliographicCitation | Talanta, v.205 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000485856500013 | - |
dc.identifier.scopusid | 2-s2.0-85068354254 | - |
dc.citation.title | Talanta | - |
dc.citation.volume | 205 | - |
dc.type.docType | Article | - |
dc.publisher.location | 네델란드 | - |
dc.subject.keywordAuthor | ATT-AuNPs | - |
dc.subject.keywordAuthor | DLS | - |
dc.subject.keywordAuthor | Electron microscopy | - |
dc.subject.keywordAuthor | Pencycuron | - |
dc.subject.keywordAuthor | UV-Visible spectrometry | - |
dc.subject.keywordPlus | Colorimetry | - |
dc.subject.keywordPlus | Dynamic light scattering | - |
dc.subject.keywordPlus | Electron microscopy | - |
dc.subject.keywordPlus | Enamels | - |
dc.subject.keywordPlus | Fiber optic sensors | - |
dc.subject.keywordPlus | Field emission microscopes | - |
dc.subject.keywordPlus | High resolution transmission electron microscopy | - |
dc.subject.keywordPlus | Metal nanoparticles | - |
dc.subject.keywordPlus | Nanosensors | - |
dc.subject.keywordPlus | Red Shift | - |
dc.subject.keywordPlus | Scanning electron microscopy | - |
dc.subject.keywordPlus | Spectrometry | - |
dc.subject.keywordPlus | Surface plasmon resonance | - |
dc.subject.keywordPlus | Ultraviolet visible spectroscopy | - |
dc.subject.keywordPlus | Van der Waals forces | - |
dc.subject.keywordPlus | ATT-AuNPs | - |
dc.subject.keywordPlus | Field emission scanning electron microscopy | - |
dc.subject.keywordPlus | Fourier transform infrared | - |
dc.subject.keywordPlus | Non-covalent interaction | - |
dc.subject.keywordPlus | Pencycuron | - |
dc.subject.keywordPlus | Pre-concentration procedures | - |
dc.subject.keywordPlus | UV visible spectroscopy | - |
dc.subject.keywordPlus | UV-visible spectrometry | - |
dc.subject.keywordPlus | Gold nanoparticles | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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