carmendrahl writes "Now, it's shine and rise. Researchers have adapted a popular anesthetic so it can be switched off with blue-violet light. In a video, tadpoles exposed to the molecule wake up immediately with light shining on them, but when the light is moved away the effect is reversed and the tadpoles go back under.
The team developed the molecule in order to control responses to the neurotransmitter GABA. They aren't sure how useful the new molecule will be in anesthesia. They're planning to determine whether it might help improve visual responses in the retina, because GABA is involved in the biology of vision."
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