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Effect of quasi-interpenetrating network of polyacrylamide and poly(N,N-dimethylacrylamide) on separation of dsDNA fragments and basic protein using CE.

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Effect of quasi-interpenetrating network of polyacrylamide and poly(N,N-dimethylacrylamide) on separation of dsDNA fragments and basic protein using CE.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Song, Weihua Zhou, Dan Peng, Shuhua Wang, Yanmei
Description	Author Affiliation: Song W ( Department of Polymer Science and Engineering, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, P.R. China.)
Abstract	Quasi-interpenetrating network (quasi-IPN) of linear polyacrylamide (LPA) with low molecular mass and poly(N,N-dimethylacrylamide) (PDMA), which is shown to uniquely combine the superior sieving ability of LPA with the coating ability of PDMA, has been synthesized for application in dsDNA and basic protein separation by CE. The performance of quasi-IPN on dsDNA separation was determined by polymer concentration, electric field strength, LPA molecular masses and different acrylamide (AM) to N,N-dimethylacrylamide (DMA) ratio. The results showed that all fragments in Phix174/HaeIII digest were achieved with a 30 cm effective capillary length at -6 kV at an appropriate polymer solution concentration in bare silica capillaries. Furthermore, EOF measurement results showed that quasi-IPN exhibited good capillary coating ability, via adsorption from aqueous solution, efficiently suppressing EOF. The effect of the buffer pH values on the separation of basic proteins was investigated in detail. The separation efficiencies and analysis reproducibility demonstrated the good potentiality of quasi-IPN matrix for suppressing the adsorption of basic proteins onto the silica capillary wall. In addition, when quasi-IPN was used both as sieving matrix and dynamic coating in bare silica capillaries, higher peak separation efficiencies, and better migration time reproducibility were obtained.
File Format	HTM / HTML
ISSN	16159306
Issue Number	4
Volume Number	32
e-ISSN	16159314
Journal	Journal of Separation Science
Language	English
Publisher	Wiley-VCH
Publisher Date	2009-02-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Analytical Discipline Chemistry Acrylamides Acrylic Resins Dna Isolation & Purification Electrophoresis, Capillary Methods Proteins Hydrogen-ion Concentration Magnetic Resonance Spectroscopy Molecular Weight Reproducibility Of Results Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Filtration and Separation

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Effect of quasi-interpenetrating network of polyacrylamide and poly(N,N-dimethylacrylamide) on separation of dsDNA fragments and basic protein using CE.

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