聚(N-乙烯基吡咯烷酮-co-甲基丙烯酸-β羟乙酯)/CMC半互穿网络水凝胶的制备以及对药物的控制释放
首发时间:2011-03-17
摘要:用N,N-亚甲基双丙烯酰胺(Bis)为交联剂,过硫酸铵(APS)为引发剂,羧甲基纤维素(CMC)为助剂,合成了聚(N-乙烯基吡咯烷酮-co-甲基丙烯酸-β羟乙酯)/CMC半互穿网络水凝胶,并在模拟人体环境的条件下,以非水溶性药物萘普生为模拟药物,考察了水凝胶在不同温度及酸度响应下的药物释放。,非水溶性药物萘普生在聚(N-乙烯基吡咯烷酮-co-甲基丙烯酸-β羟乙酯)/CMC半互穿网络水凝胶载体体系pH=2.00时,药物释放率受温度的影响较少,而在pH=7.40时,释放率受温度的影响较大。该凝胶作为萘普生口服释放载体具有较佳的释放性能。
关键词: N-乙烯基吡咯烷酮 甲基丙烯酸-β羟乙酯 CMC 半互穿网络水凝胶 萘普生 药物释放
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Study on Poly(HEMA/NVP/CMC) half interpenetrating Hydrogel as Drug Delivery Carriers
Abstract:N, N - and methyl double acrylamide (Bis) as crosslinking agent, ammonium persulfate (APS) as the initiator, carboxymethyl cellulose (CMC) for additives, the synthesis (N - vinyl pyrrole - co - methyl methacrylate hydroxyl ethyl ester) - beta/CMC half interpenetratinnetworks, and in the simulation hydrogel human environment conditions, non-aqueous drugs for simulating the drug naproxen and gel under different temperatures and acidity of the drug release under the response. Results showed that the water-soluble drugs naproxen in poly (N - vinyl pyrrole - co - methyl methacrylate hydroxyl ethyl ester) - beta/CMC half interpenetrating networks hydrogel carrier system pH = 2.00, drug release rate under the influence of the temperature of less, and in the pH = 7.40, release rate by the influence of the temperature. This gel as naproxen oral release carrier has better performance.
Keywords: N - vinyl pyrrole Methyl methacrylate hydroxyl ethyl ester the beta - The CMC Half interpenetrating networks of control gel Naproxen The drug release
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聚(N-乙烯基吡咯烷酮-co-甲基丙烯酸-β羟乙酯)/CMC半互穿网络水凝胶的制备以及对药物的控制释放
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