Fabrication of multianalyte CeO2 nanograin electrolyte–insulator–semiconductor biosensors by using CF4 plasma treatment

Autor: Shan Wei Chang, Hsiang Chen, Shang-Ren Lin, Che Wei Chang, Chin Pang Chen, Chao-Sung Lai, Chyuan Haur Kao, Yun Yang He, Min Han Lin, Kun Min Hsieh, Fang Yao Stephen Hou
Jazyk: angličtina
Předmět:
Zdroj: Sensing and Bio-Sensing Research, Vol 5, Iss, Pp 71-77 (2015)
ISSN: 2214-1804
DOI: 10.1016/j.sbsr.2015.07.001
Popis: Multianalyte CeO2 biosensors have been demonstrated to detect pH, glucose, and urine concentrations. To enhance the multianalyte sensing capability of these biosensors, CF4 plasma treatment was applied to create nanograin structures on the CeO2 membrane surface and thereby increase the contact surface area. Multiple material analyses indicated that crystallization or grainization caused by the incorporation of flourine atoms during plasma treatment might be related to the formation of the nanograins. Because of the changes in surface morphology and crystalline structures, the multianalyte sensing performance was considerably enhanced. Multianalyte CeO2 nanograin electrolyte–insulator–semiconductor biosensors exhibit potential for use in future biomedical sensing device applications. Keywords: Multianalyte biosensor, CeO2 nanograin, EIS, CF4 plasma treatment, Membrane surface
Databáze: OpenAIRE