Rapid bacteria detection in water based on micro/nano devices

Bacteria in water have a great impact in human life. In this work, we designed a system to detect bacteria in water including a micro pore arrays Microelectro Mechanical Systems (MEMS) based bacteria filter and a nanowire forest silver Surface-enhanced Raman scattering (SERS) silicon based sensor. The bacteria filter can preconcentrate and elute the bacteria samples efficiently without culture and proliferation process in tradition bacteria detection methods. The type of the bacteria can be determined by SERS technique without fluorescence labeling and biochemical reaction.