在分子印记聚合物中使用更长链交叉链的增强分子识别,以有效地分离TR活性物质
Takuya Kubo1,2, Mayuko Yagishita3, Tetsuya Tanigawa2
1Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University 1-5 Shimogamo Hangi-cho, Sakyo-ku Kyoto 606-8522 Japan tkubo@kpu.ac.jp.
RSC advances
|April 16, 2024
概括
这项研究探讨了分子印记聚合物 (MIP) 中的灵活交叉连接剂,以提高分子识别. 一种特定的交叉连接剂 (n=9) 显著提高了选择性,并证明了温度依赖的结合,模仿生物受体.
科学领域:
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
- 聚合物化学 聚合物化学
背景情况:
- 分子印记技术 (MIPs) 提供了人工分子识别能力.
- 优化MIP合成依赖于功能单体和聚合条件.
- 交叉连接器在MIP表现中的作用仍然未被充分探索.
研究的目的:
- 为了研究不同乙氧化乙烯单位 (n=1-23) 的不同聚乙烯基醇二甲酸盐交叉连接剂对MIP分子识别的影响.
- 用高性能液态染色学 (HPLC) 来评估合成的MIP对TR活性物质的保留选择性.
- 探索MIPs的温度依赖的识别行为及其诱导适合类受体模拟的潜力.
主要方法:
- 在单分散聚合物珠子上合成MIP,使用具有不同乙烯氧化物单位的聚乙烯基醇二甲酸交叉连接剂.
- 将MIP和非打印聚合物包装成HPLC列,用于保留选择性评估.
- 评估识别能力随温度变化而变化,同时对TR活性物质进行分析.
主要成果:
- 随着乙烯氧化物单位的增加,识别能力并没有持续改善.
- 一个特定的交叉连接器 (n=9) 显示出异常高的保留选择性,产生比其他MIP高出十倍的印记因子.
- 具有n=9的MIP在其聚合温度下显示了峰值识别能力,以及保留强度和生物活性之间的线性相关性.
结论:
- 灵活的交叉连接剂,特别是具有n=9个乙烯氧化物单位的交叉连接剂,可以显著提高MIP的选择性,并产生"记住"聚合条件的聚合物.
- 观察到的温度依赖的识别表明,形成了一个灵活的分子识别场模仿诱导适应在生物受体.
- 用优化的灵活交叉连接剂合成的MIP显示出对生物活性化合物的选择性分析的前景.
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