New ultra-small LEDs can inject into the brain

This technology helps scientists learn how the brain works, thereby finding new treatments for brain disorders.

Genetics is the process by which the neuronal cells are programmed or other cells are activated by the action of light.

At present, optical fiber must be connected to the animal brain to provide light for the brain region needed. However, scientists have created tiny LEDs that can be inserted directly into the brain.

The LEDs were developed by a team led by Professor John A. Rogers at the University of Illinois at Urbana-Champaign, and Professor Michael R. Bruchas from the University of Washington.

Its light is as small as a cell and attached to a plastic bandage as small as a hair. It is injected deep and accurately into the brain through a tiny needle, thereby minimizing disturbance to the brain.

A device will be attached to the top of the host's energy absorber, which will provide power to the LED.

This energy absorber can be removed from the head when not needed. The method of using old fiber optic cable, the test animal will have to connect with a lazer to provide light.

Prof Rogers and Bruchas have also developed a variety of other semiconductor devices that can be injected into the brain - including heaters, temperature and light sensors, electrodes with both stimulating and recording functions. Again the electrical activities. This lamp can also be injected into other organs.

"The study of complex behaviors, social interactions, and natural responses requires limited technology," said Rogers. "The system we studied allowed the animals themselves. It moves and interacts spontaneously, but also precisely controls the delivery of light into the brain. "