ph介导的壳聚糖膜电荷调谐：一种控制电化学选择性的智能方法

IF 5.5 3区材料科学 Q1 ELECTROCHEMISTRY

Electrochimica Acta Pub Date : 2025-05-25 DOI:10.1016/j.electacta.2025.146541

Agata Smułka , Adrian Olejnik , Dorota Zarzeczańska , Anna Wcisło , Jacek Ryl , Artur Zieliński , Tadeusz Ossowski

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引用次数: 0

摘要

壳聚糖是一种从有机几丁质中提取的天然聚合物，具有许多特性，包括形成膜的能力。它的聚合物链上有几个氨基和羟基，可以产生表面电荷，因此它很容易被修饰并与分析物相互作用。采用不同pH值的壳聚糖水凝胶对GCE电极表面进行修饰。在氧化还原体系[Fe(CN)6]3-/4-、FcDM0/+和[Ru(NH3)6]2+/3+存在的情况下，对制备的指标进行了测试，观察到静电相互作用的明显影响，证实了通过改变水凝胶的pH值来控制它们的电荷依赖性。当前抗坏血酸浓度的响应分析突出了壳聚糖水凝胶的pH值对电极过程的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

pH-mediated charge tuning of chitosan membrane: a smart approach to control electrochemical selectivity

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pH-mediated charge tuning of chitosan membrane: a smart approach to control electrochemical selectivity

Chitosan is a natural polymer derived from organic chitin with numerous properties, including the ability to form membranes. It has several amino and hydroxyl groups in its polymer chain that generate surface charge, so it can be easily modified and interact with analytes. Chitosan hydrogels with different pH values were used to modify the surface of the GCE electrode. The prepared metrics were tested in the presence of redox systems [Fe(CN)₆]^3-/4-, FcDM^0/+ and [Ru(NH₃)₆]^2+/3+, where a clear effect of electrostatic interactions was observed, confirming their charge dependence controlled by changing the pH value of the hydrogel. The current response of ascorbic acid concentration analysis highlighted the influence of the pH value of chitosan hydrogels on the electrode process.

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来源期刊

Electrochimica Acta 工程技术-电化学

CiteScore

11.30

自引率

6.10%

发文量

1634

审稿时长

41 days

期刊介绍： Electrochimica Acta is an international journal. It is intended for the publication of both original work and reviews in the field of electrochemistry. Electrochemistry should be interpreted to mean any of the research fields covered by the Divisions of the International Society of Electrochemistry listed below, as well as emerging scientific domains covered by ISE New Topics Committee.