Nanocellulose filter paper for advanced separation applications — Filtering proteins

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Protein-based drugs are widely used in medical applications. Six out of ten of the current best-selling drugs are biological products. Simon Gustafsson et al. from Uppsala University made nanocellulose membranes from Cladophora cellulose. The recovery and separation of bovine serum albumin (BSA), γ-globulin, and lysozyme by the membranes were measured. It shows that nanocellulose-based filtration materials have ideal stability for the separation and purification of proteins.

Figure A is the SEM image of the nanocellulose membrane made from Cladophora cellulose, and Figure B is the SEM image after filtering bovine serum albumin (BSA).

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