Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039 Assam, India.
Langmuir. 2022 May 17;38(19):6158-6163. doi: 10.1021/acs.langmuir.2c00517. Epub 2022 May 6.
Herein, we report a comparative study of two naphthalimide-tethered amphiphile and non-amphiphile with their aggregation-induced emission properties. A synthetic modulation of a hydrophobic tail on the framework repressed the ACQ-phoric fluorophore to an AIEgen. and remain in the dispersed form in DMF and exhibits aggregation and intense emission signal in aqueous media. Microscopy detailing of the aggregating process has been analyzed. Not only the AIEgens are emissive in water but also they are emissive in the solid state. The natural light-harvesting process is mimicked by the aggregated state, establishing an energy transfer process between and commercial dye. Disaggregation of the AIEgen has also been utilized in the detection of nitroaromatics. Analytical utility of the AIE-gen is being demonstrated concerning the detection of explosives in aqueous media.
本文报道了两种萘酰亚胺连接的两亲分子和非两亲分子的比较研究及其聚集诱导发光性质。通过在骨架上对疏水尾进行合成修饰，将具有聚集诱导猝灭（ACQ）性质的荧光团抑制为聚集诱导发光（AIE）基团。与非两亲分子相比，两亲分子在 DMF 中仍呈分散状态，在水相介质中则发生聚集并产生强烈的荧光信号。对聚集过程的显微镜细节进行了分析。AIE 基团不仅在水中具有发光性，在固态下也具有发光性。聚集态模拟了自然光的捕获过程，建立了 和商业染料之间的能量转移过程。AIE 基团的解聚集也被用于检测硝基芳烃。本文还展示了 AIE- gen 在水相介质中检测爆炸物的分析应用。
