Electronic Detection of Escherichia coli O157 ∶ H7 Using Single-Walled Carbon Nanotubes Field-Effect Transistor Biosensor
Field effect transistors (FET) based on Single-Walled Carbon Nanotubes (SWNTs) become the hot topic in fields of nano-electronic,clinical diagnostics,environmental testing etc.in recent years.In this paper,we reported a simple,scalable way to enrich semiconducting SWNTs by using HNO3/H2SO4.Then carbon nanotube field-effect transistors (CNTFET) biosensor was fabricated with the enrichment SWNTs for Escherichia coli O157 ∶ H7 detection.The response of each CNTFET was monitored in real time before and after introduction of the Escherichia coli O157 ∶ H7 at various concentrations.The results show that CNT-FET biosensors we fabricated are sensitive to change of concentration of solution and response time is really short.
single-walled carbon nanotubes (SWNTs) field effect transistors biosensor Escherichia coli O157 ∶ H7
Xiaoxian Zhang Dongwei Wang Danna Yang Sai Li Zhiqiang Shen
School of Chemical Engineering, Sichuan University Chengdu, China Academy of Military Medical sciences, Chinese PLA Center for Disease Control & Prevention,Tianjin, C
国际会议
北京
英文
94-98
2012-10-26（万方平台首次上网日期，不代表论文的发表时间）