Local redox-cycling-based electrochemical system for bioimaging

Electrochemical imaging has been dramatically developed. Electrochemical imaging can provide images of surface chemical kinetics, and its technique has been used for several applications, such as bioanalysis. Although several electrode array devices have been proposed for electrochemical imaging, it is difficult to incorporate many electrochemical sensors into a simple electrode array device due to the lack of spaces for electrodes. To solve this problem, we developed a novel electrochemical imaging system. In this system, redox cycling is based so as to incorporate many sensors in a chip device. In this review, our strategy of the detection system and device construction are described. Finally, electrochemical bioimaging using the device is described.