A hierarchically structured composite of Mn3O4/3D graphene foam for flexible nonenzymatic biosensors

被引:136
作者
Si, Peng [1 ]
Dong, Xiao-Chen [1 ]
Chen, Peng [1 ]
Kim, Dong-Hwan [1 ]
机构
[1] Nanyang Technol Univ, Sch Chem & Biomed Engn, Div Bioengn, Singapore 637457, Singapore
基金
英国医学研究理事会;
关键词
HYDROGEN-PEROXIDE; ELECTROCHEMICAL DETECTION; AMPEROMETRIC DETERMINATION; CHEMICAL SENSORS; HIGH-SENSITIVITY; GLUCOSE; ELECTRODE; NANOSHEETS; NANOTUBES;
D O I
10.1039/c2tb00073c
中图分类号
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号
0805 ; 080501 ; 080502 ;
摘要
We report a novel composite material of hierarchically structured Mn3O4 grown on three-dimensional graphene foam (3DGF). This hierarchical Mn3O4/3DGF composite was fabricated as a flexible and freestanding biosensor for nonenzymatic determination of glucose and H2O2, significant analytes in health care and food industry. The Mn3O4/3DGF-based biosensor achieved high sensitivity, large linear range and low detection limit for the detection of both analytes, due to the synergistic effects of the two materials, which combines the high electrocatalytic activity of the nanostructured Mn3O4 network, and high conductivity and large surface area of 3DGF. This enzymeless biosensor also exhibited excellent performance for real-time detection of glucose and H2O2 in serum and food samples.
引用
收藏
页码:110 / 115
页数:6
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