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- W1885209613 abstract "Abstract BACKGROUND The emergence of monoclonal antibodies ( mAbs ) as new biopharmaceutical products requires the development of new purification methods that are not only effective but are able to reduce production costs. To address the problematic recovery of mAbs , gum arabic ( GA ) coated magnetic particles ( MPs ) were used for the purification of human antibodies from animal cells supernatants. RESULTS MPs were synthesized via co‐precipitation and exhibited a spherical‐like physical aspect, with an average hydrodynamic diameter of 473 nm and a zeta potential of –26 mV . The adsorption and elution of IgG on these adsorbents was thoroughly studied. Adsorption of human IgG was enhanced at pH 6, for which a q max of 244 mg IgG g −1 MPs and K d of 25 mg L −1 were obtained. Increasing salt concentrations at a basic pH (1 mol L −1 NaCl at pH 11) were found to improve the elution of bound IgG . The MPs were challenged with an artificial protein mixture containing human IgG , albumin, insulin and apo‐transferrin. An overall yield of 84% was achieved, retrieving 92% of bound IgG . CONCLUSIONS MPs were successfully used for the capture of monoclonal antibodies from two distinct mammalian cell cultures, a Chinese hamster ovary ( CHO ) and a hybridoma cell culture supernatants. The elution yields were high, ranging between 84% and 94%, with overall yields ranging from 72% to 88%. Final purities of 85% were reached for hybridoma cell supernatants. © 2014 Society of Chemical Industry" @default.
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- W1885209613 date "2014-04-09" @default.
- W1885209613 modified "2023-10-05" @default.
- W1885209613 title "Purification of human antibodies from animal cell cultures using gum arabic coated magnetic particles" @default.
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- W1885209613 doi "https://doi.org/10.1002/jctb.4378" @default.
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