Journal
SMALL
Volume 15, Issue 17, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201900133
Keywords
colorimetric biosensors; diabetes; glucose; nanomaterials; peroxidase-like activity
Categories
Funding
- Program for the National Natural Science Foundation of China [51879101, 51579098, 51779090, 51709101, 51408206, 51521006]
- Science and Technology Plan Project of Hunan Province [2018SK20410, 2017SK2243, 2016RS3026]
- National Program for Support of Top-Notch Young Professionals of China(2014)
- Program for Changjiang Scholars and Innovative Research Team in University [IRT-13R17]
- Fundamental Research Funds for the Central Universities [531109200027, 531107050978, 531107051080]
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Diabetes is a dominating health issue with 425 million people suffering from the disease worldwide and 4 million deaths each year. To avoid further complications, the diabetic patient blood glucose level should be strictly monitored despite there being no cure for diabetes. Colorimetric biosensing has attracted significant attention because of its low cost, simplicity, and practicality. Recently, some nanomaterials have been found that possess unexpected peroxidase-like activity, and great advances have been made in fabricating colorimetric glucose biosensors based on the peroxidase-like activity of these nanomaterials using glucose oxidase. Compared with natural horseradish peroxidase, the nanomaterials exhibit flexibility in structure design and composition, and have easy separation and storage, high stability, simple preparation, and tunable catalytic activity. To highlight the significant progress in the field of nanomaterial-based peroxidase-like activity, this work discusses the various smart nanomaterials that mimic horseradish peroxidase and its mechanism and development history, and the applications in colorimetric glucose biosensors. Different approaches for tunable peroxidase-like activity of nanomaterials are summarized, such as size, morphology, and shape; surface modification and coating; and metal doping and alloy. Finally, the conclusion and challenges facing peroxidase-like activity of nanomaterials and future directions are discussed.
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