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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >Metal Oxide Nanosensors Using Polymeric Membranes Enzymes and Antibody Receptors as Ion and Molecular Recognition Elements
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Metal Oxide Nanosensors Using Polymeric Membranes Enzymes and Antibody Receptors as Ion and Molecular Recognition Elements

机译：使用聚合物膜酶和抗体受体作为离子和分子识别元件的金属氧化物纳米传感器

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The concept of recognition and biofunctionality has attracted increasing interest in the fields of chemistry and material sciences. Advances in the field of nanotechnology for the synthesis of desired metal oxide nanostructures have provided a solid platform for the integration of nanoelectronic devices. These nanoelectronics-based devices have the ability to recognize molecular species of living organisms, and they have created the possibility for advanced chemical sensing functionalities with low limits of detection in the nanomolar range. In this review, various metal oxides, such as ZnO-, CuO-, and NiO-based nanosensors, are described using different methods (receptors) of functionalization for molecular and ion recognition. These functionalized metal oxide surfaces with a specific receptor involve either a complex formation between the receptor and the analyte or an electrostatic interaction during the chemical sensing of analytes. Metal oxide nanostructures are considered revolutionary nanomaterials that have a specific surface for the immobilization of biomolecules with much needed orientation, good conformation and enhanced biological activity which further improve the sensing properties of nanosensors. Metal oxide nanostructures are associated with certain unique optical, electrical and molecular characteristics in addition to unique functionalities and surface charge features which shows attractive platforms for interfacing biorecognition elements with effective transducing properties for signal amplification. There is a great opportunity in the near future for metal oxide nanostructure-based miniaturization and the development of engineering sensor devices.
机译：识别和生物功能的概念已引起化学和材料科学领域的越来越多的兴趣。用于合成所需的金属氧化物纳米结构的纳米技术领域的进步为纳米电子器件的集成提供了坚实的平台。这些基于纳米电子的设备具有识别活生物体分子种类的能力，并且为在纳米摩尔范围内具有较低检测限的先进化学感应功能创造了可能性。在这篇综述中，使用分子和离子识别功能化的不同方法（受体）描述了各种金属氧化物，例如基于ZnO，CuO和NiO的纳米传感器。这些具有特定受体的功能化金属氧化物表面涉及受体与分析物之间的复杂形成或在对分析物进行化学感测期间的静电相互作用。金属氧化物纳米结构被认为是革命性的纳米材料，其具有用于固定生物分子的特定表面，具有非常需要的方向，良好的构象和增强的生物活性，从而进一步改善了纳米传感器的传感性能。金属氧化物纳米结构除具有独特的功能和表面电荷特征外，还具有某些独特的光学，电学和分子特征，这显示出具有吸引力的平台，可将生物识别元件与有效的信号转导特性相接口。在不久的将来，基于金属氧化物纳米结构的小型化和工程传感器设备的发展将有很大的机会。

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