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《材料导报》期刊社  2017, Vol. 31 Issue (21): 158-163    https://doi.org/10.11896/j.issn.1005-023X.2017.021.023
  多孔材料 |
新型温敏网络半互穿多孔水凝胶的制备及其固定化酶的研究*
黄婧欣1, 曾楚楚2, 郭明1, 2
1 浙江农林大学化学系,临安 311300;
2 浙江农林大学材料系,临安 311300
Preparation of the Novel Temperature-sensitive Semi-interpenetrating Porous Hydrogel and the Use in Terms of Immobilized Enzyme
HUANG Jingxin1, ZENG Chuchu2, GUO Ming1,2
1 Department of Chemistry, Zhejiang A&F University, Lin’an 311300;
2 Department of Materials, Zhejiang A&F University, Lin’an, 311300
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摘要 以甲基丙烯酸羟乙酯(Hydroxyethyl methacrylate, HEMA)、N,N-二乙基丙烯酰胺(N,N-diethyl-Acrylamide, DEAAm)为原材料,通过自由基聚合反应合成一种温敏型多孔水凝胶,经接枝反应引入乙烯基,制得新型温敏网络半互穿多孔水凝胶。利用红外光谱(IR)、核磁共振碳谱(13C NMR),结合扫描电镜(SEM)表征中间产物和最终产物。采用称重法研究最终产物的溶胀、去溶胀动力学,分析其溶胀性能和温度响应性。运用点击反应原理,以新型温敏网络半互穿多孔水凝胶固定肌酸激酶。釆用BCA (Bicinchoninic Acid) 蛋白试剂盒法测定酶的固载量,pH法测定酶活。结果表明,新型温敏水凝胶合成成功,肌酸激酶的平均固载量为24.77 mg·g-1,肌酸激酶的平均酶活为9.67 U·g-1。该新型温敏水凝胶对肌酸激酶具有良好的选择性和温度响应性,对实现肌酸激酶的高效利用具有很好的借鉴意义。
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黄婧欣
曾楚楚
郭明
关键词:  温敏水凝胶  固定化酶  肌酸激酶    
Abstract: The novel temperature-sensitive porous hydrogel was synthesized by using free radical polymerization method, the raw materials of hydroxyethyl methacrylate (HEMA) and N, N-diethyl-acrylamide (DEAAm) were use as reactants. Then propyl was introduced by grafting reaction. The intermediate product and the final product were characterized by infrared spectroscopy (IR), nuclear magnetic resonance spectroscopy (NMR), scanning electron microscope (SEM). The swelling and desorption kinetics of the final product were studied by weighing method, and the swelling properties and temperature response were also analyzed. Following the principle of ‘click reaction’, the creatine kinase was fixed on the matrix material of novel temperature-sensitive semi-interpenetrating porous hydrogel. The enzyme loading was measured by BCA (bicinchoninic acid) protein kit method, and the enzyme activity was measured by pH method. The experimental results showed that the novel temperature-sensitive hydrogels was successfully synthesized and the average loading of creatine kinase was 24.77 mg·g-1, the average activity of creatine kinase was 9.67 U·g-1. The novel temperature-sensitive hydrogel has good selectivity and temperature response to creatine kinase, which is of great reference for the effective utilization of creatine kinase.
Key words:  temperature sensitive hydrogel    immobilized enzyme    creatine kinase
出版日期:  2017-11-10      发布日期:  2018-05-08
ZTFLH:  O632.4  
基金资助: *浙江省自然科学基金(LY14E030016);国家级大学生创新创业训练计划项目(201510341017)
通讯作者:  郭明,男,博士,教授,主要从事生物质材料研究 E-mail:guoming@zafu.edu.cn   
作者简介:  黄婧欣:女,1995年生,硕士研究生,主要从事智能水凝胶固定化酶方面的研究 E-mail:229261591@qq.com
引用本文:    
黄婧欣, 曾楚楚, 郭明. 新型温敏网络半互穿多孔水凝胶的制备及其固定化酶的研究*[J]. 《材料导报》期刊社, 2017, 31(21): 158-163.
HUANG Jingxin, ZENG Chuchu, GUO Ming. Preparation of the Novel Temperature-sensitive Semi-interpenetrating Porous Hydrogel and the Use in Terms of Immobilized Enzyme. Materials Reports, 2017, 31(21): 158-163.
链接本文:  
https://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2017.021.023  或          https://www.mater-rep.com/CN/Y2017/V31/I21/158
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