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Keywords:

  • nanocellulose;
  • virus filtration;
  • size-exclusion filtration;
  • influenza;
  • Cladophora cellulose
Thumbnail image of graphical abstract

This is the first time a 100% natural, unmodified nanofibrous polymer-based membrane is demonstrated capable of removing viruses solely based on the size-exclusion principle, with a log10 reduction value (LRV) ≥ 6.3 as limited by the assay lower detection limit and the feed virus titre, thereby matching the performance of industrial synthetic polymer virus removal filters.