Nanowire network measures cells' electrical signals

2019-03-08 03:07:01

By Kurt Kleiner ELECTRICAL signals from different parts of the same cell have been simultaneously recorded for the first time, thanks to a new technique for attaching nanowire probes. This could aid the study of how heart, muscle and brain cells function and communicate. The method uses a device called a nanowire field effect transistor (NWFET). This consists of a silicon wire just 20 nanometres in diameter attached to metal electrodes on a substrate of silicon dioxide. The nanowire, which sticks out by 30 to 40 nanometres,