一种基于印记腔和印记后修饰部位的双捕获系统聚合物,对酸和化糖蛋白具有显著改善的亲和力和特异性
Jia-Yuan He1, Jun-Xuan Fu1, Jia-Yi Huang1
1School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China.
International journal of biological macromolecules
|November 10, 2024
概括
一个新的双捕获系统精确地从复杂的生物样本中分离N-乙神经胺酸 (SA). 这种方法提高了SA和化糖蛋白的特异性,有助于疾病生物标志物分析.
科学领域:
- 生物化学 生物化学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- N-乙神经胺酸 (SA) 和化糖蛋白的异常表达与癌症等疾病有关.
- 在SA分析中的挑战包括低度和复杂的生物矩阵,阻碍了准确的捕获.
研究的目的:
- 开发一种双捕获系统,以精确地从生物样本中隔离SA.
- 为了提高SA和相关糖蛋白的结合亲和力和特异性.
主要方法:
- 使用分子印记和印记后修改 (PIM) 的双捕获策略.
- 通过 PIM 引入动态 imine 债券以提高具体性.
- 制备磁性PIM聚合物 (Mag-MIPs-PIM) 进行高效的SA捕获.
主要成果:
- 马格-MIPs-PIM对SA (IF=4.24) 和化糖蛋白 (IFTRF=3.50) 具有很高的特异性.
- 在使用HPLC进行人血清分析的成功应用,达到0.01 × 10-2 g L-1的低检测极限 (LOD).
结论:
- 拟议的分子印记和PIM战略提供了一种新的方法,以提高分子印记聚合物的选择性.
- 这种方法为疾病诊断的复杂生物流体中精确的SA测定提供了一个有希望的工具.
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