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交叉连接器的数量影响了通过固相聚合合成制备的纳米MIPs的亲和力和选择性

Valentina Testa¹, Laura Anfossi¹, Simone Cavalera¹

¹Laboratory of Bioanalytical Chemistry, Department of Chemistry, University of Torino, Via Giuria 7, 10125 Torino, Italy.

|February 24, 2024

概括

在纳米MIP (纳米聚合物印制聚合物) 中优化交叉链接器度是关键. 这项研究表明,10-20mol%的甲二烯胺显著增强了结合亲和力和选择性,与典型的低度相反.

科学领域:

聚合物化学聚合物化学
材料科学材料科学材料科学
生物技术是生物技术.

背景情况:

纳米聚合物印制聚合物 (纳米MIP) 被广泛用于分子识别.
甲二烯胺是纳米MIP合成中常见的交叉链接剂,通常用于2mol%度.
不同的交叉连接器度对纳米MIP结合性质的影响尚未完全理解.

研究的目的:

为了研究甲二烯胺度对子IgG纳米MIP的结合特性的影响.
确定最佳的交叉链接器范围,以实现纳米MIP中的高亲和力和选择性.
根据它们的交叉链接程度来描述不同类型的纳米MIP.

主要方法:

合成子IgG纳米MIPs使用固相聚合剂与不同的甲-bis-烯胺度 (0-50mol%).
平衡结合实验用于量化结合参数.
在不同的交叉链接水平上分析结合亲和力,结合位密度和选择性.

主要成果:

低交叉链接 (0-5mol%) 导致低亲和力,高位密度和低选择性.
中等交叉链接 (1-18mol%) 产生了更高的亲和力,低位点密度和高选择性.
高交叉链接 (32-50mol%) 导致非特异性相互作用,低亲和力,高位点密度,没有选择性.

结论:

交叉连接的程度对nanoMIP性能产生了重大影响.
最佳的亲和力和选择性是在10-20mol%的甲二烯胺中实现的,超过典型度.
这些发现为设计针对特定应用的高性能纳米MIP提供了关键的见解.

关键词:

N,N′-甲-双烯胺结合性亲和力是一种结合性亲和力.结合性异热体的结合性是具有约束性的选择性.交叉链接是指交叉链接.分子印记是一种分子印记.在 nanoMIPIP 中,使用 nanoMIP.子IgG和IgG是不同的.

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