Contents 1Introduction 1 Ping Wang,Chunsheng Wu, Ning Hu,and K. Jimmy Hsia 2 MicrO(Nano Biosensors for Living Cell and Molecule Analysis19 Ning Hu, Jiaru Fang, and Ling Zou 3 Label-Free DNA Biosensors with lleld-Effect Devices 45 Chunsheng Wu. Liping Du, Ling Zou, and Yulan Tian 4 Micro/Nano Cell-Substrate Impedance Biosensors73 Yulan Tian, Ling Zou, and Ping Wang 5 MicmtNano Cell Potential Biosensors97 Jiaru Fang, Qin Wang, and Ning Hu 6 Micro/Nano Neuronal Network Cell Biosensors 125 Liping Du, Liang Hu, and Chunsheng Wu 7 MicmtNano Material-Based Biosensors151 Xianxin Qiu, Jie Zhou, and Ping Wang 8 MicrotNano Electrochemical Sensors for Ion Sensing187 Jiawei Tu, Hao Wan, and Ping Wang 9 Future Trends of Micro/Nano Cell- and Molecule-Based229 Ping Wang, Ning Hu, Chunsheng Wu, and K. Jimmy Hsia Index 241