Efficient capture, rapid killing and ultrasensitive detection of bacteria by a nano-decorated multi-functional electrode sensor

A three-in-one impedance sensor was fabricated by in situ nano-deposition of prickly Zn-CuO@GO nanocomposites on a porous electrode. The high bacteria-binding affinity and antibacterial activity of the deposited burr-like Zn-CuO@GO nano-layer endowed the impedance sensor with efficient bacteria capture, rapid bacteria killing and ultrasensitive bacteria sensing properties, even in a blood sample.320