Researchers at UC Berkeley and Taiwan's National Chio Tung University have created a low-cost electronic sensor that's able to wirelessly monitor the freshness of milk. The team created the electronic components for the sensor using a 3D-printing method, which it believes could have a big impact on the industry.
Identifying fraudulent paintings based on electrochemical data, highlighting cancerous cells in a sea of healthy ones, and identifying different strains of bacteria in samples of food are all examples of surface-enhanced Raman spectroscopy (SERS), a sensor system that has only become more in-demand as our desire for precise, instantaneous information has increased. However, the technology has largely failed commercialization because the chips used are difficult and expensive to create, have limited uses for a particular known substance, and are consumed upon use. Researchers led by a team from the University of Buffalo (UB) aim to change nanoscale sensors with an almost-universal substrate that's also low-cost, opening up more opportunities for powerful analysis of our environment.