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Selective fluorescent probes for spermine and 1-adamantanamine based on the supramolecular structure formed between AIE-active molecule and cucurbit[n]urils

Selective sensing of spermine and 1-adamantanamine was realized by the supramolecular structures formed between an AIE molecule and CB[n], which avoided tedious synthetic and purification procedure. [Display omitted] A supramolecular system (1@CB[7]) formed between an AIE-active molecule and cucurbi...

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Published in:Sensors and actuators. B, Chemical Chemical, 2018-05, Vol.261, p.602-607
Main Authors: Jiang, Guoyu, Zhu, Wenping, Chen, Qingqing, Li, Xinbo, Zhang, Guanxin, Li, Yongdong, Fan, Xiaolin, Wang, Jianguo
Format: Article
Language:English
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Summary:Selective sensing of spermine and 1-adamantanamine was realized by the supramolecular structures formed between an AIE molecule and CB[n], which avoided tedious synthetic and purification procedure. [Display omitted] A supramolecular system (1@CB[7]) formed between an AIE-active molecule and cucurbit[7]uril (CB[7]) was used to construct selective fluorescent probe for spermine. 1@CB[7] displayed high selectivity toward spermine with a linear range of 0–12 μM and a detection limit of 1.0 μM spermine, which well covered the concentration range required for early diagnosis of cancer (1–10 μM for urinary spermine). The design strategy based on supramolecular chemistry avoided tedious and time-consuming synthetic and purification procedures. A selective fluorescent probe for 1-adamantanamine (AD) was also fabricated using the same approach based on the supramolecular structure of AIE-active molecule 1 and cucurbit[8]uril (CB[8]). This design strategy is crucial for the early diagnosis of malignant tumour and may provide some guideline for the development of new fluorescent probes for important biological species. Elsevier B.V. All rights reserved
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2018.01.197