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Issue 27, 2016
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Decoration of porphyrin with tetraphenylethene: converting a fluorophore with aggregation-caused quenching to aggregation-induced emission enhancement

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Abstract

Porphyrins have long been used as fluorescence imaging contrast agents. However, they often suffer from aggregation-caused quenching (ACQ) which limits their maximal imaging ability. It is desirable to design new porphyrin derivatives exhibiting aggregation induced emission enhancement (AIEE) with a high photoluminescence (PL) intensity in an aggregated state. Herein, we transform porphyrin from an ACQ molecule to an AIEE one by simply decorating a porphyrin core with four tetraphenylethene arms. We further encapsulate the new AIE porphyrin into nanoparticles and examine their fluorescence imaging in vitro with HeLa cells. This research demonstrates a general approach to produce AIEE porphyrin derivatives that could potentially enhance their performance in various areas.

Graphical abstract: Decoration of porphyrin with tetraphenylethene: converting a fluorophore with aggregation-caused quenching to aggregation-induced emission enhancement

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Publication details

The article was received on 09 May 2016, accepted on 07 Jun 2016 and first published on 09 Jun 2016


Article type: Paper
DOI: 10.1039/C6TB01159D
Citation: J. Mater. Chem. B, 2016,4, 4690-4695
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    Decoration of porphyrin with tetraphenylethene: converting a fluorophore with aggregation-caused quenching to aggregation-induced emission enhancement

    B. Guo, X. Cai, S. Xu, S. M. A. Fateminia, J. Liu, J. Liang, G. Feng, W. Wu and B. Liu, J. Mater. Chem. B, 2016, 4, 4690
    DOI: 10.1039/C6TB01159D

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