NDLI: Protein adsorption in two-dimensional electrochromatography packed with superporous and microporous cellulose beads

Content Provider	Springer Nature Link
Author	Wang, Dongmei Jia, Guodong Xu, Liang Dong, Xiaoyan Sun, Yan
Copyright Year	2009
Abstract	Anion-exchange superporous cellulose (DEAE-SC) and microporous cellulose (DEAE-MC) adsorbents were packed in an electrochromatographic column, and the effect of external electric field (eEF) on the dynamic adsorption was investigated. The column was designed to provide longitudinal, transverse or 2-dimensional (2D) eEF. It was found that the electro-kinetic effect caused by the introduction of an electric field played an important role in the dynamic adsorption of bovine serum albumin to the adsorbents. The dynamic binding capacity (DBC) in the presence of 2D eEF was higher than in the presence of a one-dimensional eEF. The effect of flow velocity on the DBC of the two adsorbents was also demonstrated. It was found that the effect of electric field on the DEAE-MC column was more remarkable than that on the DEAE-SC column at the same flow rate, whereas the DEAE-SC column showed higher DBC and adsorption efficiency (AE) than the DEAE-MC column. With increasing flow rate, the DEAE-SC column could still offer high DBC and AE in the presence of the 2D eEF. For example, a DBC of 21.4 mg/mL and an AE of 57.7% were obtained even at a flow rate as high as 900 cm/h. The results indicate that the 2D electrochromatography packed with the superporous cellulose adsorbent is promising for high-speed protein chromatography.
Starting Page	229
Ending Page	234
Page Count	6
File Format	PDF
ISSN	16737369
Journal	Frontiers of Chemical Engineering in China
Volume Number	3
Issue Number	3
e-ISSN	16737474
Language	English
Publisher	SP Higher Education Press
Publisher Date	2009-05-28
Publisher Institution	Chinese Universities
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	electrochromatography two-dimensional electric field dynamic binding capacity superporous cellulose bead protein Nanotechnology Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Chemical Engineering

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