properties were studied in detail. Synergistic effects of π–π interactions between GO and the NI chromophore, and efficient photoinduced electron‐ and energy‐transfer processes, were responsible for the strong quenching of fluorescence of these nanoconjugates, which were perturbed under acidic pH conditions, leading to significant enhancement of fluorescence emission. This nanoconjugate was successfully
报道了一种基于氧化
石墨烯-
萘二甲
酰亚胺(GO-NI)纳米共轭物的pH敏感型荧光“开启”传感器,用于通过监测
水溶液中的
乙酰胆碱酯酶(AChE)的酶活性来检测
乙酰胆碱(ACh)。这些纳米共轭物是通过将1-甲基-3-(3-二甲基
氨基丙基)碳二
亚胺/ N共价锚定
吡咯基取代的NI衍
生物共价锚定在GO /还原的GO表面上而合成的研究了羟基琥珀
酰亚胺的偶联策略,以及形态和光物理性质。GO和NI生色团之间π-π相互作用的协同效应,以及有效的光诱导电子和能量转移过程,导致了这些纳米共轭物的荧光强烈猝灭,这些荧光在酸性pH条件下受到干扰,从而显着增强了荧光发射。该纳米共轭物已成功用于有效检测AChE的酶促活性引起的pH变化,从而证明了其作为神经生理学范围内ACh的荧光开启传感器的实用性。