A Smart pH-Responsive Three Components Luminescent Hydrogel.

A Smart pH-Responsive Three Components Luminescent Hydrogel.
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智能 pH 响应三组分发光水凝胶

DOI:
10.3390/jfb7030025
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发表时间:
2016-09-12
影响因子:
4.8
通讯作者:
Fan X
Fan X
中科院分区:
工程技术3区
文献类型:
--
作者:
Li Y;Liu W;Cheng L;Huang P;Peng Y;Wu Y;Li X;Li X;Fan X

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本文报道了一种由氨基酸衍生物(N,N′-二缬氨酸-3,4,9,10-二萘嵌苯四甲酸,NVPD)、核黄素(RF)和三聚氰胺(MM)组成的新型三组分发光水凝胶。该三组分水凝胶归因于这些分子之间的多个氢键和强的π-π堆积相互作用。基于胶凝因子的强氢键,当凝胶和溶液之间发生可逆过程时,它将系统的pH从6.1改变到10.6。此外,该凝胶在498 nm下可发出绿色荧光,并可通过改变环境pH值可逆地重复聚集态的转化过程。
In this study, we report a novel three-component luminescent hydrogel, which is composed of amino acid derivatives (N,N′-di valine-3,4,9,10-perylenetetracarboxylic acid, NVPD), riboflavin (RF), and melamine (MM). The three-component hydrogel is attributed to multiple hydrogen bonds and the strong π-π stacking interaction between these molecules. Based on the strong hydrogen bonding of the gelator, when the reversible process between the gel and the solution take places it changes the pH of the system from 6.1 to 10.6. In addition, green fluorescence could be the emissive of the hydrogel under 498 nm and the conversion process of the aggregation state repeated reversibly by altering the value of ambient pH. This pH-responsive luminescent gel may display potential for use in nano pH sensors.
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