Un gruppo di ingegneri dell'università cinese di Hong Kong ha messo a punto un minuscolo robot fatto di alghe, ideato per muoversi nel corpo umano e fare dei piccoli interventi chirurgici.
Descritto sulla rivista Science, il robot realizzato con l'alga spirulina è stato sperimentato su cellule tumorali fatte crescere in laboratorio. Nei test è riuscito a uccidere il 90% delle cellule maligne nel giro di 48 ore.
Questo dispositivo è stato sperimentato anche in animali vivi: hanno nuotato nello stomaco di topi, che hanno dimostrato di tollerare bene i piccoli ospiti. Per monitorarne i movimenti all'interno del corpo, i ricercatori hanno rivestito milioni di alghe con nanoparticelle di ossido di ferro.
ANSA/eb
Un robot di alghe per curarsi
RSI Tech&Scienza 24.11.2017, 19:57
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