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Porous charged polymer nanosheets formed via microplastic removal from frozen ice for virus filtration and detection
Summary
Researchers developed porous charged polymer nanosheets — created by freezing and removing microplastics from ice — that can filter viruses including SARS-CoV-2 with 96% efficiency. This innovative technique uses microplastics as a template to produce functional filtration materials while simultaneously removing plastic particles.
We developed a method for producing porous charged polymer nanosheets using frozen ice containing microplastics. Upon assessing SARS-CoV-2 filtration using nanosheets with 100 nm-sized pores, a high rejection rate of 96% was achieved. The charged surfaces of nanosheets further enabled the electrophoretic capture of the virus using a portable battery with additional real-time sensing capability.
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