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納微薄膜修飾電極的制備及應用已成為化學修飾電極研究的熱點。這本《納微薄膜修飾電極及其應用》是作者楊政鵬以該研究領域近幾年的研究成果為基礎而寫成的，主要介紹了納米TiO2、納米羥基磷灰石、納米多孔氧化鋁膜修飾電極的制各工藝及其在生物、醫學、環境等領域的應用，并對近期受到關注的分子印跡無機納米膜和有機薄膜修飾電極另列章節分別介紹。本書力求做到方法具體、內容新穎充實、分析深入，適于作電化學、電分析化學、界面化學和相關邊緣學科研究的參考書。
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(5) Macroscopic quantum tunnel effect
The ability of microscopic particles through the barrier is called tunnel effect. In recent years, it is noted that macroscopic quanti!ies, such as particle magnetization, magnetic flux in quantum interference devices and electric charge etc., also have a tunnel effect. These macroscopic quantities change by crossing the potential well of macroscopic system, this is known as the macroscopic quantum tunnel effect. Macroscopic quantum tunnel effect has important significance for basic research and practical application, and it defines the time limit of information storage in the tape and disk.
1.2.2 Application of the electrodes modified by nanomaterial
Electrochemical analysis, especially the sensor, is the most promising application of nanoparticles. Generally, the sensor should possess high sensitivity, fast response, wide detection range, good selectivity and high stability. Nanomaterial can better meet the requirements of the sensor due to its rich surface-active sites, high photocatalytic efficiency and great adsorption ability, and provides new avenues for electrochemical analysis.Compared to traditional sensors, the electrodes modified by nanomaterial not only possess high sensitivity, but also can realize high throughput online detection and analysis.
Electrochemical analysis can provide quickly and accurately theoretical basis for the research on chemical properties and kinetics of nanomaterial due to its simplicity, rapid analysis, intuitiveness and online analysis. Nanomaterial modified electrode for electrochemical analysis is easy to investigate the mechanism related to material properties. The nanometer TiO2, nanometer hydroxyapatite and nanoporous alumina associated with the present study are introduced as follows.
