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a) Comparison of the contact angle of bare PP (133°) with NaCl‐coated PP (0°). b) Pressure‐dependent filtration efficiency of salt‐coated PP filters. c) Hemagglutinin activity (HA) of viruses adsorbed on salt‐coated PP filters in various incubation times. Reproduced with permission.[ 71 ] Copyright 2017, Nature.
