Nanoscale device allows brain chemistry observation at smallest level

To address a longstanding hurdle in biomedical research, the University of Illinois Urbana-Champaign researchers have developed a new nanoscale sensor. 
This innovative technology can monitor areas 1,000 times smaller than current technologies, particularly advancing the observation of brain chemistry at the smallest level.
As per the press release, this sensor holds the potential to detect minute changes in the chemical composition of living tissue at sub-second resolution.