Synergistic Coupling of Fluorescent 鈥淭urn-Off鈥?with Spectral Overlap Modulated FRET for Ratiometric Ag+ Sensor

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• 作者：Mengliang Zhu ; Yabin Zhou ; Liguo Yang ; Lin Li ; Dongdong Qi ; Ming Bai ; Yuting Chen ; Hongwu Du ; Yongzhong Bian
• 刊名：Inorganic Chemistry
• 出版年：2014
• 出版时间：November 17, 2014
• 年：2014
• 卷：53
• 期：22
• 页码：12186-12190
• 全文大小：343K
• ISSN：1520-510X

文摘

A useful strategy for ratiometric fluorescent detecting of Ag⁺ is demonstrated. Upon selective binding of Ag⁺ to a BODIPY-porphyrin dyad (1), the synergistic coupling of two functions, namely the suppressing of FRET from BODIPY donor to porphyrin acceptor and the fluorescence quenching of porphyrin acceptor, leads to exceptionally large changes in the intensity ratio of two distinct emissions (F₅₁₃/F₆₅₄) which allow for the ratiometric detecting of Ag⁺ with excellent sensitivity in solution and living cells.