Mesh electronics, a macroporous network of components with mechanical properties similar to that of biological tissue, is a relatively new technology that can be used to probe activity in the brain. Now, researchers at Harvard University in the US have overcome two major challenges holding back this technology. First, they have found a way to prevent the mesh from crumpling when it is injected into dense tissue, like that of the brain.
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Ref: Syringe Injectable Electronics: Precise Targeted Delivery with Quantitative Input/Output Connectivity. Nano Letters (2015) | DOI: 10.1021/acs.nanolett.5b02987