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Effect of hydrodynamic forces on virus removal capability of Planova™ filters
Author(s) -
Yamamoto Aguru,
HongoHirasaki Tomoko,
Uchi Yukihiko,
Hayashida Hirohisa,
Nagoya Fujiharu
Publication year - 2014
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.14392
Subject(s) - filtration (mathematics) , mechanism (biology) , péclet number , viscosity , mechanics , brownian motion , chemistry , physics , mathematics , thermodynamics , statistics , quantum mechanics
Virus removal processes are extremely important to biological product safety. This study gives a detailed description of the virus removal mechanisms of Planova™ filters. These include the following: (1) Mechanism 1: size exclusion, (2) Mechanism 2: constraint by hydrodynamic forces, and (3) Mechanism 3: multistep filtration. The process was studied through the dynamic perspective of virus movement using simulations and experiments. Our results show that Mechanism 2 and Brownian motion are key factors in virus removal of size exclusion‐based filtration and can be evaluated by Peclet number. The addition of dynamic perspective makes it possible to describe macroscopic phenomena such as the effects of filtration pressure and solution viscosity on virus removal capabilities. © 2014 American Institute of Chemical Engineers AIChE J , 60: 2286–2297, 2014