Protein adsorption of radiation functionalized LDPE sheets

Low density polyethylene (LDPE) sheets were modified by radiation-induced graft copolymerization of N-vinyl pyrrolidone (NVP) and acrylonitrile (AN) binary comonomer of different molar ratios. The factors affecting the radiation modification process were optimized. The radiation-modified LDPE sheets...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2011-12, Vol.67 (9), p.1837-1848
Main Authors: El-Hag Ali, Amr, El-Sawy, Naeem M., Hegazy, El-Sayed A., Awadallah-F, Ahmed
Format: Article
Language:English
Subjects:
Adsorption
Applied sciences
Biocompatibility
Characterization and Evaluation of Materials
Chemical treatment
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Contact angle
Copolymerization
Creatinine
Electron microscopes
Exact sciences and technology
Gamma globulin
Graft copolymers
Grafting and modifications
Low density polyethylenes
Organic Chemistry
Physical Chemistry
Physical properties
Physicochemistry of polymers
Polyethylene
Polymer Sciences
Polymers
Polymers and radiations
Protein adsorption
Proteins
Radiation
Radiation effects
Scanning electron microscopy
Selective adsorption
Soft and Granular Matter
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Summary:Low density polyethylene (LDPE) sheets were modified by radiation-induced graft copolymerization of N-vinyl pyrrolidone (NVP) and acrylonitrile (AN) binary comonomer of different molar ratios. The factors affecting the radiation modification process were optimized. The radiation-modified LDPE sheets were further modified via the chemical treatment of the grafted nitrile groups with thiourea. The modification processes were confirmed by FTIR and the modified LDPE sheets were characterized by studying their swelling behavior. The protein adsorption ability of the modified LDPE sheets was examined towards creatinine, as protein derivative and γ-globulin fraction (II). Adsorption kinetics were calculated and possibility of selective adsorption was evaluated.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-011-0515-y