| 1 | Development of silicon-based microelectrode array显示文摘This paper introduces in details a kind of silicon-based microelectrode array. MEMS (micro-electromechanical system) technology is used in the fabrication of the microelectrode array, which is designed to perform signal recording and electrical stimulation for nerves in neural engineering. A simple fabrication process is developed. An improved model of microelectrodes is brought forward and successfully validated by the excellent match between circuit simulations and electrical measurements, including both magnitude and phase of microelectrode impedance. Compared with the simple one that is usually used, the improved model is believed to be an advance and more accurate. This modeling helps to improve the design of microelectrodes and understand the behavior of interface between electrode and cell. Furthermore, the microelectrode is proved to be a feasible tool for researches in neural engineering by successfully recording neural activities of sciatic nerve of a bullfrog. | LIN JianHui1,2,3, WU XiaoMing1,2,3,4, HUANG PengSheng1,2, FENG Lei5, REN TianLing1,2 & LIU LiTian1,2 1 Institute of Microelectronics, Tsinghua University, Beijing 100084, China 2 Tsinghua National Laboratory for Information Science and Technology, Beijing 100084, China 3 Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314050, China 4 State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Shanghai 200050 China 5 Department of Biomedical Engineering, Tsinghua University, Beijing 100084, China | 2009 | Science China(Technological Sciences)2009，52，8： | 3 |
| 2 | Electrochemical Properties of Polypyrrole-Coated Microelectrode Array and the Fabrication of Polypyrrole-Based Microelectronic Devices显示文摘Conducting polymers have been studied extensively. An interesting property of the conducting polymer is that the conductivity of some polymers, such as polypyrrolc, polyaniline, poly(3-methylthiophene) etc. , is affected by the voltage applied to them. For polypyrrole, the oxidized state is an electronic conductor and the reduced state is essentially insulating. Using this property, one can fabricate the polymer-based electronic devices. Experimental results of | CAI Chen-xin,JU Huang-xian and CHEN Hong-yuan (Department of Chemistry,Nanjing University,Nanjing,210093) | 1995 | Chemical Research in Chinese Universities1995，11，2： | 2 |
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