应用化学 ›› 2024, Vol. 41 ›› Issue (6): 870-877.DOI: 10.19894/j.issn.1000-0518.230255

• 研究论文 • 上一篇    下一篇

CO2刺激响应球型水凝胶的制备及在蛋白质分离中的应用

张守村(), 闫雪垠, 宋阳华, 李卓敏   

  1. 北方民族大学材料科学与工程学院,高分子材料及制造技术重点实验室,银川 750021
  • 收稿日期:2023-08-26 接受日期:2024-05-06 出版日期:2024-06-01 发布日期:2024-07-09
  • 通讯作者: 张守村
  • 基金资助:
    省部共建“粉体材料及特种陶瓷”重点实验室项目(2201);宁夏自然科学基金项目(2023AAC03282)

Preparation of CO2 Stimulus-Responsive Hydrogel and Its Application in Protein Separation

Shou-Cun ZHANG(), Xue-Yin YAN, Yang-Hua SONG, Zhuo-Min LI   

  1. Key Laboratory of Polymer Materials and Manufacturing Technology,College of Materials Science and Engineering,North Minzu University,Yinchuan 750021
  • Received:2023-08-26 Accepted:2024-05-06 Published:2024-06-01 Online:2024-07-09
  • Contact: Shou-Cun ZHANG
  • About author:zhang_sc@ nun.edu.cn
  • Supported by:
    Key Laboratory of Powder Material & Advanced Ceramics North Minzu University(2201);Ningxia Natural Science Foundation(2023AAC03282)

摘要:

以纤维素、甲基丙烯酸二甲基胺基乙酯和NN′-亚甲基双丙烯酰胺等为原料制备了纤维素/聚甲基丙烯酸二甲基胺基乙酯互穿网络复合水凝胶材料(GCel/PD)。GCel/PD材料具有显著的CO2刺激响应特性,能有效地吸附分离牛血清白蛋白(BSA)。其中,对BSA的最大吸附量可达(434.4±15) mg/g。在CO2/N2氛围的循环切换下,GCel/PD材料表现出良好的循环稳定性,在循环使用3次之后,对蛋白质的吸附量仍能达到167.5 mg/g。使用之后,颗粒状GCel/PD便于从体系中分离出来,有望在蛋白质的分离提取方面得到应用。

关键词: 复合水凝胶, CO2, 刺激-响应, 吸附分离

Abstract:

A composite hydrogel material, denoted as GCel/PD, is synthesized by utilizing cellulose, NN′-dimethylaminoethyl methacrylate (DMAEMA) and NN'-methylenebis(acrylamide) as the main raw materials. The results demonstrate that the GCel/PD materials exhibit significant CO2 stimulus-responsive characteristics, and can effectively adsorb and separate bovine serum albumin (BSA). The maximum adsorption capacity can reach (434.4±15) mg/g. Moreover, under the cyclic switching between CO2 and nitrogen atmospheres, the GCel/PD material can exhibit good cycling stability. The adsorption capacity is as high as 167.5 mg/g even after three usage cycles. The material's particulate nature facilitates its post-usage separation from the system, exhibits promising potential in protein extraction and separation.

Key words: Composite hydrogel, CO2, Stimulus-responsive, Adsorption and separation

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