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Advanced electrochromic/electrofluorochromic poly(amic acid) toward the colorimetric/fluorometric dual-determination of glycosuria
Materials Today Chemistry ( IF 7.3 ) Pub Date : 2021-06-17 , DOI: 10.1016/j.mtchem.2021.100497
Y. Zhang , Y. Li , X. Jia , E.B. Berda , C. Wang , D. Chao

The electrochromic/electrofluorochromic (EC/EFC) dual-functional polymers have gained intense attention owing to the unique electrochemically induced absorption and emission change simultaneously. Most of the efforts have recently been devoted to improving their EC/EFC performance. However, the practical application studies of the EC/EFC polymers are still in their infancy. Herein, we present a poly(amic acid) based material bearing high solid fluorescence-efficiency AIEgens and electroactive oligoaniline groups, featuring a good electrochromic performance with desirable optical contrast, high coloration efficiency, and outstanding durability. This occurs in tandem with electrofluorochromic behavior with ideal fluorescence contrast and moderate switching speed. By virtue of the versatile electrospinning technique, we manufactured a nanofibrous test strip base on the resultant polymer for glucose determination. The colorimetric/fluorometric dual-determination of glucose is carried out with an obvious color change from gray to dark green, along with a drastic fluorescence change from light to dark, which exhibits numerous advantages of easy operation, rapid detection, favorable selectivity, and unique repeated use feature. Furthermore, the nanofibrous test strips also provide reliable results in the glycosuria test. This strategy shows distinct promise for future sensing applications.



中文翻译:

先进的电致变色/电致荧光变色聚(酰胺酸)对糖尿的比色/荧光双测定

电致变色/电致荧光变色(EC/EFC)双功能聚合物由于独特的电化学诱导吸收和发射同时发生变化而受到广泛关注。最近的大部分努力都致力于提高其 EC/EFC 性能。然而,EC/EFC聚合物的实际应用研究仍处于起步阶段。在此,我们提出了一种基于聚酰胺酸的材料,其具有高固体荧光效率 AIEgens 和电活性低聚苯胺基团,具有良好的电致变色性能、理想的光学对比度、高着色效率和出色的耐久性。这与具有理想荧光对比度和中等切换速度的电荧光变色行为同时发生。凭借多功能的静电纺丝技术,我们制造了一种基于所得聚合物的纳米纤维测试条,用于葡萄糖测定。比色/荧光双测定葡萄糖,颜色由灰变深绿色明显,荧光由浅变深剧烈,具有操作简便、检测快速、选择性好、独特性强等诸多优点。重复使用功能。此外,纳米纤维测试条还在糖尿测试中提供可靠的结果。这种策略对未来的传感应用显示出明显的前景。具有操作简便、检测迅速、选择性好、可重复使用等特点。此外,纳米纤维测试条还在糖尿测试中提供可靠的结果。这种策略显示出对未来传感应用的独特前景。具有操作简便、检测迅速、选择性好、可重复使用等特点。此外,纳米纤维测试条还在糖尿测试中提供可靠的结果。这种策略显示出对未来传感应用的独特前景。

更新日期:2021-06-18
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