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Polymer Bulletin
Erschienen in: Polymer Bulletin 5/2018

08.08.2017 | Original Paper

Polyacrylamide-grafted calcium alginate microspheres as protein-imprinting materials

verfasst von: Xiaoguang Ying, Hongxun Wang, Jiangquan Liu, Xiao Li

Erschienen in: Polymer Bulletin | Ausgabe 5/2018

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Abstract

Protein-imprinted polyacrylamide (PAM)-grafted calcium alginate (CaA) microspheres were synthesized via free-radical grafting polymerization with potassium persulfate and sodium bisulfite as initiators. FTIR, 13C-NMR and SEM were used for characterization. Swelling behaviors were studied and it was found that modified calcium alginate (CaA) microspheres possessed larger swelling degree than calcium alginate, because grafted hydrophilic PAM side chains contributed to more water absorption. Moreover, the durability of the swollen samples was improved for the modified microspheres. Compared with calcium alginate microspheres, modified calcium alginate samples exhibited higher absorption capacity (approximately, 13.1 and 10.3 mg/g) for MIPs in single and binary protein solution. The rebinding selectivity of CaA-g-PAM microspheres (approximately, 2.7) was higher than that of calcium alginate (CaA) microspheres (approximately, 1.5) in binary protein solution. It was suggested that the introduction of PAM side chains was beneficial for the specific recognition of protein.
Vorheriger Artikel Preparation and characterization of corn cob/polypropylene composite reinforced by wood ash
Nächster Artikel Cellulose nanocrystals modified with quaternary ammonium salts and its reinforcement of polystyrene

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Metadaten
Titel
Polyacrylamide-grafted calcium alginate microspheres as protein-imprinting materials
verfasst von
Xiaoguang Ying
Hongxun Wang
Jiangquan Liu
Xiao Li
Publikationsdatum
08.08.2017
Verlag
Springer Berlin Heidelberg
Erschienen in
Polymer Bulletin / Ausgabe 5/2018
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-017-2138-4

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