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首页> 外文期刊>Electroanalysis >Switchable Electrodes: How Can the System Complexity be Scaled up?
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Switchable Electrodes: How Can the System Complexity be Scaled up?

机译：可切换电极：如何提高系统复杂性？

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摘要

Electrodes modified with different signal-responsive materials were designed as switchable electrochemical interfaces controlled by various physical or chemical signals. Electrodes with the electrochemical activity switched ON and OFF by light signals were developed using monolayers or thin films of photoisomerizable compounds. Functionalized magnetic particles associated with the electrode surfaces allowed the switching processes controlled by an external magnetic field. Electrochemical transformations proceeding at modified electrode surfaces upon application of different potentials were able to switch the interfacial resistance between low and high values, thus affecting electrochemical properties of the surfaces. Electrode surfaces functionalized with materials responding to chemical signals allowed the switching processes controlled by chemical or biochemical inputs. Most of the designed switchable electrode interfaces have very limited possibilities for scaling up the complexity of the information processing systems associated with the electrode surfaces. Recent advances in biocomputing and specifically in the design of enzyme-based logic systems allow their coupling with switchable electrodes resulting in very sophisticated interfaces for processing biochemical information and its transduction into electronic signals. Future applications of the signal-responsive electrodes integrated with the biocomputing systems in 'smart' biochemically controlled biosensors, biofuel cells and chemical actuators could be envisaged.
机译：用不同的信号响应材料修饰的电极被设计为可切换的电化学界面，受各种物理或化学信号控制。使用光可异构化化合物的单层或薄膜开发了具有通过光信号将电化学活性切换为ON和OFF的电极。与电极表面相关的功能化磁性粒子允许通过外部磁场控制开关过程。在施加不同电势时，在修饰电极表面上进行的电化学转化能够在低和高值之间切换界面电阻，从而影响表面的电化学性能。用响应化学信号的材料功能化的电极表面允许通过化学或生化输入控制开关过程。大多数设计的可切换电极接口对于扩大与电极表面相关的信息处理系统的复杂性具有非常有限的可能性。生物计算的最新进展，特别是基于酶的逻辑系统设计方面的最新进展，使它们可以与可切换电极耦合，从而产生了非常复杂的界面，用于处理生化信息并将其转换为电子信号。可以设想将与生物计算系统集成在一起的信号响应电极在“智能”生物化学控制生物传感器，生物燃料电池和化学致动器中的未来应用。

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