通过脱硫反应快速检测次氯酸盐的新型硫脲基荧光导通传感器

IF 1.7 4区 化学 Bulletin of the Korean Chemical Society Pub Date : 2024-09-04 DOI:10.1002/bkcs.12897
Boeun Choi, Soyeon Kim, Cheal Kim
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引用次数: 0

摘要

过量的次氯酸盐(ClO-)对生物体有害,可导致人体各种氧化性疾病。由于 ClO- 的毒性,有必要开发高效的荧光传感器来跟踪 ClO-。在这项工作中,我们报告了一种新型的基于硫脲的荧光开启传感器 1-(9-乙基-9H-咔唑-3-基)-3-(萘-1-基)硫脲(ECNT),用于识别 ClO-。ECNT 可通过脱硫反应检测 ClO-,具有高选择性,对其他分析物的干扰相对较低,且响应时间极短(1 秒)。根据计算,ECNT 对 ClO- 的检测限为 5.59 μM。值得注意的是,在已报道的基于硫脲的检测 ClO- 的荧光开启传感器中,ECNT 是与 ClO- 反应最快的化学传感器。通过 1H NMR 滴定、ESI 质量和密度泛函理论计算,证明了 ECNT 对 ClO- 的反应机制。
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A novel thiourea-based fluorescent turn-on sensor for rapidly detecting hypochlorite through a desulfurization reaction

Excess hypochlorite (ClO) is harmful to living organisms and can cause various oxidative diseases in the human body. Owing to the toxicity of ClO, the development of efficient fluorescence sensors to track ClO is necessary. In this work, we report a novel thiourea-based fluorescent turn-on sensor 1-(9-ethyl-9H-carbazol-3-yl)-3-(naphthalen-1-yl)thiourea (ECNT) for recognizing ClO. ECNT can detect ClO with high selectivity, relatively low interference with other analytes, and a significantly fast response time (<1 s) through a desulfurization reaction. The detection limit of ECNT for ClO is calculated as 5.59 μM. Of note, ECNT is a chemosensor that reacts the fastest with ClO among the reported thiourea-based fluorescence turn-on sensors for detecting ClO. The response mechanism of ECNT to ClO is demonstrated through 1H NMR titration, ESI mass, and density functional theory calculations.

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来源期刊
Bulletin of the Korean Chemical Society
Bulletin of the Korean Chemical Society Chemistry-General Chemistry
自引率
23.50%
发文量
182
期刊介绍: The Bulletin of the Korean Chemical Society is an official research journal of the Korean Chemical Society. It was founded in 1980 and reaches out to the chemical community worldwide. It is strictly peer-reviewed and welcomes Accounts, Communications, Articles, and Notes written in English. The scope of the journal covers all major areas of chemistry: analytical chemistry, electrochemistry, industrial chemistry, inorganic chemistry, life-science chemistry, macromolecular chemistry, organic synthesis, non-synthetic organic chemistry, physical chemistry, and materials chemistry.
期刊最新文献
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