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Functionalization o...
Functionalization of epoxy-based monoliths for ion exchange chromatography of proteins
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- Dinh, Ngoc Phuoc (författare)
- Umeå universitet,Kemiska institutionen
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- Nguyen, Anh Mai (författare)
- Umeå universitet,Kemiska institutionen
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- Quach, Minh Cam (författare)
- Umeå universitet,Kemiska institutionen
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- Shchukarev, Andrei (författare)
- Umeå universitet,Kemiska institutionen
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- Irgum, Knut (författare)
- Umeå universitet,Kemiska institutionen
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(creator_code:org_t)
- 2009-08-07
- 2009
- Engelska.
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Ingår i: Journal of Separation Science. - : Wiley InterScience. - 1615-9306. ; 32:15-16, s. 2556-2564
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Macroporous epoxy-based monoliths prepared by emulsion polymerization have been modified for use in ion exchange chromatography (IEC) of proteins. Strong anion exchange functionality was established by iodomethane quaternization of tertiary amine present on the monolith surface as a part of the polymer backbone. The modification pathway to cation exchange materials was via incorporation of glycidyl methacrylate (GMA) brushes which were coated using atom transfer radical polymerization (ATRP). Strong (SO3-) and weak (COO-) cation exchange groups were thereafter introduced onto the GMA-grafted monoliths by reactions with sodium hydrogen sulfite and iminodiacetic acid, respectively. Grafting was confirmed by XPS, gravimetric measurement, and chromatographic behavior of the modified materials toward model proteins. In incubation experiments the proteins were recovered quantitatively with no obvious signs of unfolding after contact with the stationary phase for >2 h. Chromatographic assessments on the functionalized columns as well as problems associated with flow-through modification by ATRP are discussed.
Ämnesord
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
Nyckelord
- ATRP
- Epoxy-amine
- Ion exchange chromatography
- Monolithic sorbents
- Protein separation
- Analytical chemistry
- Analytisk kemi
- Analytical Chemistry
- analytisk kemi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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