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VIDEO: By adding a bit of acid to the acetone, it dissolves the calcium carbonate particles in the aerogel and releases CO2 generating the bubbles that make the material more porous. The. view more
Credit: Jowan Rostami
A new low-cost and sustainable technique would boost the possibilities for hospitals and clinics to deliver therapeutics with aerogels, a foam-like material now found in such high-tech applications as insulation for spacesuits and breathable plasters.
With the help of an ordinary kitchen freezer, this newest form of aerogel was made from all natural ingredients, including plant cellulose and algae, says Jowan Rostami, a researcher in fibre technology at KTH Royal Institute of Technology in Stockholm.