Multifunctional AIEgens: Ready Synthesis, Tunable Emission, Mechanochromism, Mitochondrial, and Bacterial Imaging,Advanced Functional Materials

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Multifunctional AIEgens: Ready Synthesis, Tunable Emission, Mechanochromism, Mitochondrial, and Bacterial Imaging
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2017-11-09 , DOI: 10.1002/adfm.201704589
Meijuan Jiang ₁ , Xinggui Gu _{1,

2} , Ryan T. K. Kwok ₁ , Ying Li ₁ , Herman H. Y. Sung ₁ , Xiaoyan Zheng ₁ , Yilin Zhang ₃ , Jacky W. Y. Lam ₁ , Ian D. Williams ₁ , Xuhui Huang ₁ , Kam Sing Wong ₃ , Ben Zhong Tang _{1,

4,

5}

Affiliation

Luminogens with aggregation‐induced emission characteristics (AIEgens) are intriguing due to its rapid expansion in various high‐tech applications. However, there is still in high demand on the development of novel AIEgens with easy preparation and functionalization, stable structures, tunable emissions, and high quantum efficiency. In this contribution, three AIEgens based on diphenyl isoquinolinium (IQ) derivatives are reported. They can be facilely synthesized and possess high structural stability, favorable visible light excitation, large Stokes shifts, high quantum yields, tunable colors, and sufficient two‐photon absorption of near‐infrared light. Importantly, they exhibit multifunctionalities. They exhibit mechanochromic property, making them capable to be applied for rewritable papers. They can also be applied in mitochondrial imaging with high specificity, cell permeability, brightness, biocompatibility, and photostability. They are promising for the applications in evaluation of mitochondrial membrane potential and image‐guided cancer cell ablation. Last, they are able to stain bacteria in a wash‐free manner. All these intriguing results suggest such readily accessible and multifunctional diphenyl IQ‐based AIEgens provide a new platform for construction of advanced materials for practical applications.

中文翻译：

多功能AIEgens：就绪合成，可调发射，机械变色，线粒体和细菌成像

具有聚集诱导发射特性的光致发光剂（AIEgens）令人着迷，因为它在各种高科技应用中迅速发展。然而，仍然需要开发易于制备和功能化，结构稳定，发射可调，量子效率高的新型AIEgen。在此贡献中，报道了基于二苯基异喹啉鎓（IQ）衍生物的三种AIEgen。它们可以容易地合成，并具有高的结构稳定性，有利的可见光激发，大的斯托克斯位移，高的量子产率，可调谐的颜色以及足够的近红外光的双光子吸收。重要的是，它们具有多功能性。它们表现出机械变色特性，使其能够用于可重写纸。它们还可以高特异性，细胞渗透性，亮度，生物相容性和光稳定性应用于线粒体成像。它们有望用于评估线粒体膜电位和图像引导的癌细胞消融。最后，它们能够以免洗的方式染色细菌。所有这些引人入胜的结果表明，这种易于获得的多功能基于联苯IQ的AIEgens为构建用于实际应用的高级材料提供了一个新平台。

更新日期：2017-11-09

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