Studying the mammalian brain is one of the most complex task and the devices to monitor the activities of individual neurons are still unavailable. Thankfully, researchers from the University of Arizona, George Washington University and Northwestern University have created tiny wireless, battery-free devices that use light to monitor the activities of individual neurons. The device carefully selects neurons with a dye and changes its brightness depending on activity. After that, it passes a light on the dye to capture the neuron’s activity and passes the information wirelessly to researchers. This new device would allow researchers to monitor brain’s activity without using restrictive equipment and will give detailed insights into the base mechanisms of the brain
