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Construction of emission-tunable nanoparticles based on a TICT-AIEgen: Impact of aggregation-induced emission versus twisted intramolecular charge transfer

Abstract

Traditional fluorogens with aggregation-induced emission (AIEgens) generally exhibit strong luminescence with monotonous wavelength in the aggregate state, whereas apparent solvatochromic emission intensities and wavelengths (shift) are observed in molecules with twisted intramolecular charge transfer (TICT) characteristics molecules. Herein, we develop a platform to construct strong luminescent nanoparticles with tunable emission colors based on a TICT-AIEgen, 3,6-divinylaryl-substituted carbazole (C12P). Even base on the same molecule, through different nanoparticle fabrication approaches, fluorescent nanoparticles with different emission colors were obtained. Detailed analysis reveals that AIE and TICT characteristics play different roles in the nanoparticle emission, with AIE primarily controls the emission intensity while TICT manipulates more in the emission wavelengths. Applications of the as-prepared nanoparticles in cell imaging were preliminarily demonstrated.

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Publication details

The article was received on 26 Feb 2018, accepted on 03 Apr 2018 and first published on 03 Apr 2018


Article type: Paper
DOI: 10.1039/C8TB00539G
Citation: J. Mater. Chem. B, 2018, Accepted Manuscript
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    Construction of emission-tunable nanoparticles based on a TICT-AIEgen: Impact of aggregation-induced emission versus twisted intramolecular charge transfer

    Y. Chiang, Z. Lai, C. Chen, C. Chang and B. Liu, J. Mater. Chem. B, 2018, Accepted Manuscript , DOI: 10.1039/C8TB00539G

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