Influence of Microstructure on Performance of TiO₂ Nanodots Film Based Biosensor Electrodes

Abstract:

Electrochemical biosensors are widely applied in areas related to health monitors. Protein adsorptions on the electrode and direct electron transfer between enzymes and electrode have been recognized as key factors affecting sensor performance. In this work, TiO₂ nanodots films were prepared on Ti substrate to act as electrodes of biosensors. The effect of the nanodots film microstructure on electrode performance was carried out. It was found that the performances H₂O₂ biosensor could be improved by tailoring TiO₂ nanodots film microstructure in the electrodes. The present work could provide an alternative to obtain biosensor with high performance.

• Periodical: Key Engineering Materials (Volume 605)
• Pages: 155-158
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.605.155
• Online since: April 2014
• Authors: Mohannad Saleh Hammadi, Kui Cheng*, Wen Jian Weng
• Keywords: Biosensor Electrodes, H₂O₂, Microstructure, TiO₂ Nanodots Film

References

[1] Z. Zhao and H. Jiang: Academy of Sciences, 10 (2) (2010), p.1216.

[2] Zhang Ming, Li Limiao, Du Z., Xu Shoujiang, Li Chengchao, Chen Xian, Zhang Tiafang and Wang Taihong: Sensor Letters, 7 (4) (2009), p.543.

[3] Y. H. Won, D. Aboagye, H. S. Jang, A. Jitianu and L. A. Stanciu: Journal Materials Chemistry, 20 (2010), p.5030.

[4] K. Thenmozhi and S. Sriman Narayanan: Sens. and Actuators B: Chemical, 125 (2007), p.195.

[5] S. Helali, H. Baccar, A. Abdelghani, and N. Jaffrezic Renault :Sensor Letters, 7 (5) 2009, p.808.

[6] S. Chen, R. Yuan, Y. Q. Chai and F. X. Hu: Microchimica Acta, 180 (2013), p.15.

[7] N. Q. Jia, Q. Zhou, L. Liu, M. M. Yan and Z. Y. Jiang: Journal of Electroanalytical Chemistry, 580 (2005), p.213.

[8] J. Jegan Roy, T. Emilia Abraham, K.S. Abhijith, P.V. Sujith Kumar and M.S. Thakur: Biosensors and Bioelectronics Journals, 21 (2005), p.206.

[9] Y. Zhang, G. M. Zeng, L. Tang, D. L. Huang, X. Y. Jiang and Y. N. Chen: Biosensors and Bioelectronics Journals, 22 (2007), p.2121.

[10] L. Zhang, Q. Zhang and J. H. Li: Advanced Funct. Mater., 17 (2007), p.1958.

[11] H. Zhou, X. Gan, J. Wang, X. L. Zhu and G. X. Li: Anal. Chem., 77 (2005), p.6102.

[12] A. K. M. Kafi, G. S. Wu and A. C. Chen: Biosensor and Bioelectronics, 24 (2008), p.566.

[13] X. L. Xiao, W. Lu and X. Yao, Electro analysis, 20 (2008), p.2247.

[14] M. Luo, K. Cheng, W.J. Weng, C. L. Song, P. Y. Du, G. Shen, G. Xu and G. R. Han: Nanotechnology, 20 (2009), p.215605.

[15] A. A. Ansari, P. R. Solanki and B. D.: Malhotra, Biotechnology Journal, 46 (2009), p.132.

[16] Y. J. Teng, S. H. Zuo and M. B. Lan: Biosensor and Bioelectronics, 24 (2009), p.1353.

[17] A.J. Bard, and L. R. Faulkner in: Electro-chemical Methods: Fundamentals and Applications, 2nd edition, John Wiley & Sons, Inc., NY (2001).

[18] N. J. Miller and J. C. Miller in: Statistics and chemometrics for analytical Chemistry, Fifth edition, 2005, p.121.