Journal
JOURNAL OF MATERIALS CHEMISTRY B
Volume 4, Issue 27, Pages 4690-4695Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6tb01159d
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Funding
- Singapore National Research Foundation [R279-000-444-281]
- Singapore-Berkley Energy Research Institute
- Institute of Materials Research and Engineering of Singapore [IMRE/14-8P1110]
- Singapore National Research Foundation [R279-000-444-281]
- Singapore-Berkley Energy Research Institute
- Institute of Materials Research and Engineering of Singapore [IMRE/14-8P1110]
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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.
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