#MIT nanotechnologists fabricated microscopic chemical sensors that can be sprayed as an aerosol to monitor pollution, detect chemical leaks, or even ingested as a medical nasal spray. https://boingboing.net/2018/07/23/microscopic-sensors-in-a-spray.html …pic.twitter.com/pPyvvWTiaY
6:11 AM - 24 Jul 2018
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