Specific molecules can be detected with unprecedented sensitivity using plasmonics and nano-particles – “100 times more sensitive than current similar sensors”, according to the University of Bath. At the heart of the sensor is an array of gold discs  – the nano-particles – deposited on a transparent substrate. A laser (~760nm) is used to excite ...

This story continues at plasmonic nano-particles sense chemicals better than ever

Or just read more coverage at Electronics Weekly