Tag: universityofillinois

Universities inject neuron-sized LEDs to stimulate brains without a burden (video)

Existing methods for controlling brain activity tend to skew the results by their very nature — it’s difficult to behave normally with a wad of optical fibers or electrical wires in your head. The University of Illinois and Washington University have developed a much subtler approach to optogenetics that could lift that weight from the mind in a very literal sense. Their approach inserts an extra-thin ribbon into the brain with LEDs that are about as big as the neurons they target, stimulating deeper parts of the mind with high precision and minimal intrusion; test mice could act as if the ribbon weren’t there. The solution also lets researchers detach the wireless transceiver and power from the ribbon to lighten the load when experiments are over. Practical use of these tiny LEDs is still a long ways off, but it could lead to both gentler testing as well as better treatment for mental conditions that we don’t fully understand today. Filed under: Science , Alt Comments Via: Mobile Magazine Source: University of Illinois

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Universities inject neuron-sized LEDs to stimulate brains without a burden (video)

Tiny lithium-ion battery recharges 1000x faster than rival tech, could shrink mobile devices

Supercapacitors are often hailed as the holy grail of power supplies, but a group of researchers at the University of Illinois have developed a lithium-ion microbattery that leaves that prized solution in the dust, recharging 1,000 times faster than competing tech. Previous work done by Professor William P. King, who led the current effort, resulted in a fast-charging cathode with a 3D microstructure, and now the team has achieved a breakthrough by pairing it with an anode devised in a similar fashion. The resulting battery is said to be the most powerful in the world, avoiding the usual trade-off between longevity and power while having a footprint of just a few millimeters. By altering its composition, scientists can even optimize the contraption for more juice or increased life. It’s expected that the technology could make devices 30 times smaller and help broadcast radio signals up to 30 times farther, but it’ll still be a while before it winds up in a super-slim phone within your pocket. For now, the researchers have their sights set on integrating the tech with other electronic components and investigating low-cost manufacturing. Filed under: Science , Alt Comments Via: Eureka Alert Source: University of Illinois News Bureau

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Tiny lithium-ion battery recharges 1000x faster than rival tech, could shrink mobile devices