Boronic acid-based thin films that show saccharide-responsive multicolor changes
Boronic acid-based thin films that show saccharide-responsive multicolor changes
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显示糖响应多色变化的硼酸基薄膜
DOI：
10.1002/app.42679
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发表时间：
2015
影响因子：
3
通讯作者：
Y. Kanekiyo
中科院分区：
文献类型：
--
作者：
Y. Iwami;T. Yokozawa;H. Yamamoto;Y. Kanekiyo
开发了一种新型的糖类传感器，其颜色变化明显，类似于交通信号灯。通过将硼酸和胺单体在玻璃板上共聚，得到了含硼酸薄膜。在薄膜上吸附了阴离子蓝和黄色染料，并将薄膜浸泡在含有阳离子红染料的糖水溶液中。随着溶液中糖浓度的增加，薄膜颜色由绿色变为红色，由黄色变为红色。观察到的明显的颜色变化归因于染料的逐步释放和结合。糖类传感器的灵敏度依赖于薄膜中的单体组成，并且随着硼酸含量的增加而增加。糖溶液的pH值是影响传感行为的另一个关键因素，当pH值为7.8时，葡萄糖响应的颜色变化显著增强。通过对这些条件的优化，获得了对葡萄糖有显著响应的颜色变化。糖的选择性顺序如下：fructose >； glucose >； galactose = mannose >； sucrose.©2015威利期刊公司J.应用。波兰姆。科学，2015,132,42679。
A novel saccharide sensor that displays a distinct color change resembling a “traffic signal” was developed. By copolymerizing boronic acid and amine monomers on a glass plate, a boronic acid‐containing thin film was obtained. Anionic blue and yellow dyes were adsorbed on the thin film, and the film was immersed in aqueous saccharide solutions containing a cationic red dye. With increase in the saccharide concentration in the solution, the thin film changes color from green to red via yellow. The observed distinct changes in color were attributed to a stepwise release and binding of dyes. The sensitivity of the saccharide sensor was dependent on the monomer composition of the thin film and increased with increasing the boronic acid content. The pH of the saccharide solution was another key factor affecting the sensing behavior, and glucose‐responsive color changes were significantly enhanced at pH 7.8. By optimizing these conditions, significant color changes in response to glucose were achieved. Saccharide selectivity was found to be in the following order: fructose > glucose > galactose = mannose > sucrose. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2015,132, 42679.