MIT SMART researchers have engineered a plant-based sensor that can detect underground arsenic. βThis novel sensor could be a game-changer,β Michael Strano says, in monitoring βa serious environmental contaminant and potential public health threat.β https://t.co/qZFtRF65lo pic.twitter.com/FZe6es2OMc— Massachusetts Institute of Technology (MIT) (@MIT) December 14, 2020 "Messenger RNA...doesnβt naturally enter cells by itself."Bob Langer and Dan Andersonβwhose work on nanoparticles helped pave the way for the delivery of therapeutic RNA to cellsβhelp explain how mRNA vaccines work.https://t.co/5jHQDmme18— Koch Institute at MIT (@kochinstitute) December 11, 2020