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    Tapered Optical Fiber Performs Multisite Photometry in the Brain

    Article obtained from Photonics RSS Feed.

    Researchers from Istituto Italiano di Tecnologia (IIT), the University of Salento, and Harvard Medical School have developed a light-based method to capture and pinpoint neural activity in the brain. The new method allows signals from various brain regions to be collected simultaneously through the use of a tapered optical probe.

    The approach relies on bringing fluorescent molecules into specific nerve cells to track their electric activity and measure the level of neurotransmitters. To achieve this, the team used a tapered optical fiber that could capture light from single neurons and enable light collection over an extent of up to 2 mm of tissue and multisite photometry along the taper.

    The researchers inserted the…

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    Nov, 26 2019 |

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