Swansea scientists' sugar-coated nanoparticle blocks 98.6% of Covid-19 infection
Swansea University chemist Dr Sumati Bhatia and international collaborators built a synthetic sugar-coated nanoparticle that blocked SARS-CoV-2 infection of human lung cells by up to 98.6% in laboratory tests. The findings were peer-reviewed and published in the journal Small on 16 July 2025, with Swansea University announcing them on 11 August 2025.