| 抗菌淀粉-聚乙烯醇水凝胶的制备及性能 |
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| 引用本文： | 方媛,朱琳琳,危大福,郑安呐,胡福增,管涌. 抗菌淀粉-聚乙烯醇水凝胶的制备及性能[J]. 医学教育探索, 2011, 24(3): 280-287 |
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| 作者姓名： | 方媛 朱琳琳 危大福 郑安呐 胡福增 管涌 |
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| 作者单位： | 华东理工大学材料科学与工程学院，上海市先进聚合物材料重点实验室，超细材料制备与应用教育部重点实验室，上海 200237;华东理工大学材料科学与工程学院，上海市先进聚合物材料重点实验室，超细材料制备与应用教育部重点实验室，上海 200238;华东理工大学材料科学与工程学院，上海市先进聚合物材料重点实验室，超细材料制备与应用教育部重点实验室，上海 200239;华东理工大学材料科学与工程学院，上海市先进聚合物材料重点实验室，超细材料制备与应用教育部重点实验室，上海 200240;华东理工大学材料科学与工程学院，上海市先进聚合物材料重点实验室，超细材料制备与应用教育部重点实验室，上海 200241;华东理工大学材料科学与工程学院，上海市先进聚合物材料重点实验室，超细材料制备与应用教育部重点实验室，上海 200242 |
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| 基金项目： | 教育部留学归国人员科研启动基金资助项目；国家自然科学基金项目(50573020) |
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| 摘 要： | 以环氧氯丙烷为键合剂将胍盐低聚物(PHMG)接枝到淀粉分子上，设计了正交试验优化接枝反应条件。将产物添加到淀粉和聚乙烯醇(PVA)水溶液中，采用化学交联法合成了具有抗菌性能的淀粉-聚乙烯醇(S-PVA)水凝胶，测试了水凝胶的溶胀率、脱水率以及抗菌性能。结果表明：当反应温度为40 °C、时间为0.5 h、pH为9时，PHMG的接枝效率最高，水凝胶的溶胀率随着PVA含量的增大而减小，随着交联剂用量的增加呈现先增大后减小的趋势。S-PVA水凝胶对大肠杆菌和金黄色葡萄球菌均显示出了优异的抗菌活性，当w(PHMG)=0.2%时，抑菌率达到100%。
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| 收稿时间： | 2010-12-24 |
Preparation and Properties of Antimicrobial Starch-PVA Hydrogel |
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| FANG Yuan,ZHU Lin-lin,WEI Da-fu,ZHENG An-n,HU Fu-zeng and GUAN Yong. Preparation and Properties of Antimicrobial Starch-PVA Hydrogel[J]. Researches in Medical Education, 2011, 24(3): 280-287 |
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| Authors: | FANG Yuan ZHU Lin-lin WEI Da-fu ZHENG An-n HU Fu-zeng GUAN Yong |
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| Affiliation: | Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200238, China;Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200239, China;Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200240, China;Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200241, China;Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200242, China |
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| Abstract: | Starch grafted oligoguanidine (S-PHMG) was synthesized using epichlorohydrin as the bonding agent. Orthogonal tests were applied to optimize the reaction conditions. Antimicrobial starch-PVA hydrogels were synthesized from chemical crosslinked of starch, PVA and S-PHMG. The reswelling rate, dewatering rate and antimicrobial activity were determined. Results showed that the grafting efficiency could reach 22.15% at the optimal conditions: temperature 40 °C, time 0.5 h, pH=9. The reswelling rates of the hydrogels decreased with the increasing of PVA content, while increased at first and then decreased with the increasing of the crosslinker contents. S-PVA hydrogels exhibited high antimicrobial activities against both E. coli and S. aureus. When w(PHMG)=0.2%, the growth inhibition reached 100%. |
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| Keywords: | hydrogel starch PVA oligoguanidine antimicrobial activity |
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