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首页> 外文期刊>Journal of Polymers and the Environment >Green Synthesis of Agar/Gelatin Based Superabsorbent (BGCP) Through Gamma Radiation Cross-Linking Polymerization for Castoff as Sustained Drug Delivery Device and in Soil Treatment for Improved Water Retention
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Green Synthesis of Agar/Gelatin Based Superabsorbent (BGCP) Through Gamma Radiation Cross-Linking Polymerization for Castoff as Sustained Drug Delivery Device and in Soil Treatment for Improved Water Retention

机译：琼脂/明胶基超吸收剂（BGCP）通过γ辐射交联聚合为梯级作为持续的药物递送装置和土壤处理改善水保留

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摘要

In this paper, agar/gelatin and acrylic acid-co-vinyl acetate (monomer chains) based superabsorbent, fabricated using gamma radiations as an initiator andN-N ' dimethylene bisacrylamide as a crosslinker, has been investigated for its swelling behaviour (Max. Ps = 8010) in distilled water as a function of time, temperature and pH. The hydrogel has further been applied for sustained delivery ofdiethyl carbamazine citrateunder three pH conditions at 37 degrees C. It has been found to show non-Fickian type mechanism as the drug release showed diffusion coefficient less than 0.50 for all the pH conditions. The gel characteristic constant 'n' was found to be: 0.910 at 9.2 pH, 0.832 at 7.0 pH and 0.768 at 2.2 pH with their corresponding 'k': 0.175, 0.242 and 0.413, respectively. The initial diffusion coefficient has been found to show greater values than late diffusion coefficient confirming greater release at the early stages of the drug release than that in the late stages. Also to apply BGCP in soil treatment its moisture retention capacity has been studied using three different soil models. BGCP was found to retain moisture under clay, mix and sand soil models for 57 days, 42 days and 32 days, respectively. Under bio-composting method of biodegradation sample was found to be 91% degraded after 70 days.
机译：在本文中，研究了琼脂/明胶和丙烯酸 - 共乙烯基乙烯酯（单体链），使用γ辐射作为引发剂ANDN-N'二甲基双丙烯酰胺作为交联剂制造的超吸收性，以其溶胀行为（最大PS = 8010）在蒸馏水中作为时间，温度和pH的函数。水凝胶进一步应用于37摄氏度的三甲基氨基吡啶氨酸柠檬酸盐酸碳酸氨基甲酸氨基甲酸氨基甲酸氨酸条件。已经发现，对于所有pH条件，药物释放显示出不小于0.50的扩散系数，已经发现了非Fickian型机制。发现凝胶特征恒定的'n'是：0.910，在9.2 pH下，0.832，在7.0 pH下，0.768位，其相应的'k'：0.175,0.242和0.413。已经发现初始扩散系数显示出比晚期扩散系数更大的值，该值在药物释放的早期阶段的早期释放而不是晚期阶段。此外，在土壤处理中涂抹BGCP，使用三种不同的土壤模型研究了水分保留能力。发现BGCP分别在粘土，混合和沙尘模型下保留水分，分别为57天，42天和32天。在生物堆肥方法下，发现生物降解样品的方法是90天后降解的91％。

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