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Issue 16, 2017
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Motion-induced change in emission (MICE) for developing fluorescent probes

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The need for detecting and labelling environmentally and biologically important analytes has driven considerable research efforts in developing fluorescent probes. During the sensing process, molecular motions (i.e., molecular rotations or vibrations) of a flexible fluorescent probe can be significantly altered by its embedding micro-environment or analyte, thereby leading to substantial changes in readout signals. Motion-induced change in emission (MICE) can be utilized as an effective sensing mechanism. However, in comparison to the well-understood sensing mechanisms, such as photo-induced electron transfer (PET), intramolecular charge transfer (ICT), aggregation-induced emission (AIE) and disaggregation-induced emission (DIE), MICE has not been systematically discussed to date. In this tutorial review, we will summarize the concept and mechanisms of MICE for developing single-molecular fluorescent probes, present unique advantages of MICE based sensors, demonstrate their various applications, and discuss technical challenges in this field. We expect that this review will promote a deeper understanding of MICE and facilitate the development of novel MICE based probes.

Graphical abstract: Motion-induced change in emission (MICE) for developing fluorescent probes

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Article information

10 Jan 2017
First published
10 Jul 2017

Chem. Soc. Rev., 2017,46, 4833-4844
Article type
Tutorial Review

Motion-induced change in emission (MICE) for developing fluorescent probes

D. Su, C. L. Teoh, L. Wang, X. Liu and Y. Chang, Chem. Soc. Rev., 2017, 46, 4833
DOI: 10.1039/C7CS00018A

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