Bing Xu, Yan Li, Zhihui Luo, Jianglou Huang. A Novel Colorimetric Glucose Biosensor Based on Graphene Oxide-Gold Nanoparticles-Glucose Oxidase Composites[J]. Laser & Optoelectronics Progress, 2023, 60(15): 1528002
- Laser & Optoelectronics Progress
- Vol. 60, Issue 15, 1528002 (2023)
Fig. 1. Preparation principle of GO-AuNPs-GOD complex
Fig. 2. Principle of the colorimetric method for glucose solution detection
Fig. 3. Characterization of GO-AuNPs composite nanoparticles. (a) UV absorption spectra; (b)(c) TEM image
Fig. 4. Survival rate of cells cultured with different mass concentrations of GO-AuNPs composite nanoparticles for different periods
Fig. 5. Characterization of GO-AuNPs-GOD composites nanoparticles. (a) UV absorption spectra; (b) Raman spectra
Fig. 6. Zeta potential test diagram of complex
Fig. 7. Effect of particle size on sensor
Fig. 8. Effect of Au /GO volume ratio on sensor performance
Fig. 9. Effect of GOD mass concentration on sensor performance
Fig. 10. Effect of pH on sensor performance
Fig. 11. Sensitivity of the sensor. (a) Absorption spectra at different glucose mass concentrations; (b) relationship between the change of absorption wavelength and glucose mass concentration
Fig. 12. Selectivity of sensor
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Table 1. Compared with similar sensors
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Table 2. Detection of glucose in SBF
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