Recent Advances in the Application of Nanozymes in Amperometric Sensors: A Review

被引:6
作者
Tong, Liu [1 ,2 ]
Wu, Lina [2 ]
Su, Enben [2 ]
Li, Yan [1 ]
Gu, Ning [1 ,3 ]
机构
[1] Southeast Univ, Sch Biol Sci & Med Engn, State Key Lab Bioelect, Jiangsu Key Lab Biomat & Devices, Nanjing 210009, Peoples R China
[2] Getein Biotechnol Co Ltd, Nanjing 211505, Peoples R China
[3] Nanjing Univ, Med Sch, Nanjing 210093, Peoples R China
基金
中国国家自然科学基金;
关键词
amperometric sensors; H2O2; sensor; glucose sensor; nanozyme; minireview; PEROXIDASE-LIKE ACTIVITY; METAL-ORGANIC FRAMEWORK; REDUCED GRAPHENE OXIDE; N-DOPED CARBON; HYDROGEN-PEROXIDE; ELECTROCATALYTIC OXIDATION; ELECTROCHEMICAL BIOSENSORS; COLORIMETRIC SENSOR; HOLLOW NANOSPHERES; HIGH-PERFORMANCE;
D O I
10.3390/chemosensors11040233
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Amperometric sensors evaluate current changes that occur as a result of redox reactions under constant applied potential. These changes in current intensity are stoichiometrically related to the concentration of analytes. Owing to their unique features, such as fast reaction velocity, high specificity, abundant existence in nature, and feasibility to be immobilized, enzymes are widely used by researchers to improve the performance of amperometric sensors. Unfortunately, natural enzymes have intrinsic disadvantages due to their protein structures. To overcome these proteinic drawbacks, scientists have developed nanozymes, which are nanomaterials with enzymatic properties. As the result of significant advances in materiology and analytical science, great progress has been achieved in the development of nanozyme-based amperometric sensors with outstanding performance. To highlight achievements made in recent years, we first summarize the development directions of nanozyme-based amperometric sensors. Then, H2O2 sensors, glucose sensors, sensors combining natural enzymes with nanozymes, and sensors targeting untraditional specific targets will be introduced in detail. Finally, the current challenges regarding the nanozymes utilized in amperometric sensors are discussed and future research directions in this area are suggested.
引用
收藏
页数:30
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