A simple and dual responsive ultrasensitive thioether-functionalized pyrenesulfonamide for the cascade detection of mercury ion and dithiouracil, a mimetic system for molecular logic gates
DC Field | Value | Language |
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dc.contributor.author | Kumar, Ashwani | - |
dc.contributor.author | Chae, Pil Seok | - |
dc.date.accessioned | 2021-06-22T13:23:20Z | - |
dc.date.available | 2021-06-22T13:23:20Z | - |
dc.date.created | 2021-01-21 | - |
dc.date.issued | 2017-11 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/8530 | - |
dc.description.abstract | A thioether-functionalized probe with a dipodal pyrene-sulfonamide fluorophore (probe 1) was synthesized for the selective and sensitive detection of Hg2+ in aqueous solutions. In addition, a probe with a monopod pyrene-sulfonamide unit was prepared (probe 2). Among various metal ions, these two probes appeared to selectively bind to Hg2+ at a 1: 1 ratio, with a stronger association of probe 1 than probe 2, as evidenced by titration experiments. The green emission displayed by probe 1 was completely quenched by the coordination of Hg2+ to sulfur (ON-OFF), presumably via energy transfer from the pyrene fluorophore to the [sulfur-Hg2+] unit. The limit of detection (LOD) was 1 nM (0.22 ppb), one of the lowestvalues obtained so far. Furthermore, the in situ-prepared [1+Hg2+] complex continued to be utilized to selectively detect dithiouracil (DTU) via an "OFF-ON" mechanism among diverse biomolecules, along with an LOD of 20 nM. Thus, probe 1 alone or together with Hg2+ allowed the cascade detection of Hg2+ and DTU with high selectivity and ultra-sensitivity. The current study indicates that probe 1 not only serves as an 'INHIBIT and AND' logic gate, but also works as an "ON-OFF-ON" molecular switch triggered by the sequential addition of Hg2+ and DTU. (C) 2017 Elsevier B.V. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Elsevier BV | - |
dc.title | A simple and dual responsive ultrasensitive thioether-functionalized pyrenesulfonamide for the cascade detection of mercury ion and dithiouracil, a mimetic system for molecular logic gates | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Chae, Pil Seok | - |
dc.identifier.doi | 10.1016/j.snb.2017.05.077 | - |
dc.identifier.scopusid | 2-s2.0-85019926607 | - |
dc.identifier.wosid | 000406184600051 | - |
dc.identifier.bibliographicCitation | Sensors and Actuators, B: Chemical, v.251, pp.416 - 426 | - |
dc.relation.isPartOf | Sensors and Actuators, B: Chemical | - |
dc.citation.title | Sensors and Actuators, B: Chemical | - |
dc.citation.volume | 251 | - |
dc.citation.startPage | 416 | - |
dc.citation.endPage | 426 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.subject.keywordPlus | HG2+ ION | - |
dc.subject.keywordPlus | COLORIMETRIC SENSORS | - |
dc.subject.keywordPlus | FLUORESCENT-PROBE | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTION | - |
dc.subject.keywordPlus | LIVING CELLS | - |
dc.subject.keywordPlus | METAL-IONS | - |
dc.subject.keywordPlus | INORGANIC MERCURY | - |
dc.subject.keywordPlus | MINAMATA-DISEASE | - |
dc.subject.keywordPlus | RECENT PROGRESS | - |
dc.subject.keywordPlus | AMINO-ACIDS | - |
dc.subject.keywordAuthor | Pyrene excimer emission | - |
dc.subject.keywordAuthor | Hg2+ sensor | - |
dc.subject.keywordAuthor | Dithiouracil detection | - |
dc.subject.keywordAuthor | Dynamic quenching | - |
dc.subject.keywordAuthor | Cascade detectiona | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0925400517308973?via%3Dihub | - |
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