Protein adsorption of radiation functionalized LDPE sheets
Protein adsorption of radiation functionalized LDPE sheets
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DOI：
10.1007/s00289-011-0515-y
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发表时间：
2011-06
期刊：
影响因子：
3.2
通讯作者：
A. El-Hag Ali;N. El-Sawy;E. Hegazy;Ahmed Awadallah‐F
中科院分区：
文献类型：
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作者：
A. El-Hag Ali;N. El-Sawy;E. Hegazy;Ahmed Awadallah‐F
采用不同摩尔比的N-乙烯基吡咯烷酮（NVP）和丙烯腈（AN）二元共聚单体辐射接枝改性低密度聚乙烯（LDPE）片材。对影响辐照改性工艺的因素进行了优化。辐照改性LDPE片材通过硫脲对接枝腈基进行化学处理进一步改性。采用FTIR对改性过程进行了表征，并通过溶胀行为对改性后的LDPE片材进行了表征。检测了改性LDPE片材对作为蛋白质衍生物的肌酐和γ-球蛋白级分（II）的蛋白质吸附能力。吸附动力学计算和选择性吸附的可能性进行了评估。
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.