Electronically tuned sulfonamide-based probes with ultra-sensitivity for Ga³⁺ or Al³⁺ detection in aqueous solution

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• 作者：Ashwani Kumar ; ^{ashwanirubal@gmail.com} ; Pil Seok Chae ; ^{pchae@hanyang.ac.kr}
• 关键词：N ; N-bis-(hydroxyethyl)ethylenediamine ; Naphthalenedimide ; 1 ; 8-Naphthalimide ; Pyrene sulfonamides ; Aggregation-induced emission ; Photo-induced electron transfer
• 刊名：Analytica Chimica Acta
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：958
• 期：Complete
• 页码：38-50
• 全文大小：2716 K
• 卷排序：958

文摘

Three electronically tuned sulfonamide-based probes (probes 1, 2, and 3) were developed for metal ion-sensing. Probes 2 and 3 exhibited AIE behavior with increasing water-content. Probes 2 and 3 displayed a selective fluorescence “OFF-ON“ behavior for Ga3+ detection with the LOD of 10 nM. PET suppression and AIE jointly played a significant role for ultra-sensitive detection of Ga3+.