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Stimuli-responsive supramolecular hydrogel with white AIE effect for ultrasensitive detection of Fe3+ and as rewritable fluorescent materials
Dyes and Pigments ( IF 4.1 ) Pub Date : 2020-09-19 , DOI: 10.1016/j.dyepig.2020.108875
Qi Zhao , Xin-Yu Dai , Hong Yao , You-Ming Zhang , Wen-Juan Qu , Qi Lin , Tai-Bao Wei

The development of fluorescent smart materials by introducing white light emission into supramolecular polymer hydrogels, and tuning their aggregation-induced emission (AIE) effect are essential for the manufacture of advanced functional materials. Herein, a novel bi-component supramolecular polymer hydrogel (NDG) was successfully constructed via a simple host-guest assembly process based on two easy-to-synthesize tripodal gelators (NTS and DTB). Strikingly, the NDG exhibits strong white aggregation-induced emission (WAIE), and can act as an AIE-based sensor for ultrasensitive detect Fe3+ and F-. The lowest limits of detection (LODs) are 5.33 × 10-9 M and 1.61 × 10-8 M, respectively. The xerogel of NDG exhibits nice adsorption and separation capacity for Fe3+, the adsorption rate reachs to 99.26%. In addition, the prepared NDG-based thin films can be used as rewritable fluorescent display material for the continuity detection of Fe3+ and F-. Due to the outstanding optical behavior of the NDG, it also be used as an “IMPLICATION” logic gate at the molecular level. The AIE hydrogel-guided enriches the self-assembly strategy of new supramolecular polymers, which also makes it become a good candidate for flexible optical materials.



中文翻译:

具有白色AIE效应的刺激响应超分子水凝胶,用于超灵敏地检测Fe 3+和可重写荧光材料

通过将白光发射引入超分子聚合物水凝胶并调节其聚集诱导发射(AIE)效果来开发荧光智能材料,对于制造高级功能材料至关重要。本文中,基于两个易于合成的三脚架凝胶器(NTSDTB),通过简单的宿主-客体组装过程成功地构建了新型双组分超分子聚合物水凝胶(NDG)。引人注目的是,NDG显示出强白聚集诱导的发射(WAIE),和作为基于AIE-传感器,用于超灵敏检测的Fe可以充当3+和F - 。最低检测限(LOD)为5.33×10 -9M和1.61×10 -8MNDG的干凝胶对Fe 3+具有良好的吸附和分离能力,吸附率达到99.26%。此外,所制备的NDG为基础的薄膜可以用作可重写荧光显示材料用于连续性检测的Fe 3+和F - 。由于NDG出色的光学性能,它在分子水平上也可用作“ IMPLICATION”逻辑门。AIE水凝胶引导丰富了新型超分子聚合物的自组装策略,这也使其成为柔性光学材料的理想选择。

更新日期:2020-09-20
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