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首页> 外文期刊>New Journal of Chemistry >Efficient synthesis of boronate affinity-based chlorogenic acid-imprinted magnetic nanomaterials for the selective recognition of chlorogenic acid in fruit juices
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Efficient synthesis of boronate affinity-based chlorogenic acid-imprinted magnetic nanomaterials for the selective recognition of chlorogenic acid in fruit juices

机译：高效合成硼酸盐亲和基的绿原酸印迹磁性纳米材料，用于果汁中绿原酸选择性识别

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摘要

Chlorogenic acid (CGA), acis-diol-containing compound, can exhibit anti-inflammatory, antiviral, antimicrobial and anti-oxidation properties. Thus, it is essential to determine CGA in food products. However, analysis of CGA at natural levels in food products is difficult because of its very low concentration level and the presence of undesirable matrix effects which could interfere with the measuring system. Thus, it is essential to develop efficient and selective enrichment approaches for determining CGA. Molecularly imprinted polymers can be well used for the selective enrichment of CGA from food samples. In this study, we utilized CGA-imprinted magnetic nanoparticles as an ideal sorbent for selective enrichment of CGA followed by direct absorbance determination. The CGA-imprinted magnetic nanoparticles were prepared according to a newly reported strategy, called boronate affinity-based oriented surface imprinting. Magnetic nanoparticles and boronic acid ligands were used as supporting materials and functional monomers, respectively. The prepared CGA-imprinted magnetic nanoparticles exhibited several significant advantages, such as good specificity, high binding affinity and low binding pH toward CGA, which made the molecularly imprinted material an ideal sorbent for selective enrichment of CGA. The prepared CGA-imprinted magnetic nanoparticles were successfully applied to the analysis of CGA in fruit juices.
机译：绿原酸（CGA），含ACIS-二醇的化合物，可表现出抗炎，抗病毒，抗微生物和抗氧化性能。因此，必须在食品中确定CGA。然而，由于其极低浓度水平和可能干扰测量系统的不希望的基质效应，因此难以分析食品中的天然水平的CGA难以困难。因此，必须开发用于确定CGA的有效和选择性的富集方法。分子印迹聚合物可以很好地用于从食物样品中选择性富集CGA。在该研究中，我们利用CGA印迹磁性纳米粒子作为理想的吸附剂，用于选择性富集CGA，然后是直接吸光度测定。根据新报道的策略制备CGA印迹磁性纳米颗粒，称为硼酸酯亲和基于取向表面积压印。磁性纳米颗粒和硼酸配体分别用作载体材料和功能性单体。制备的CGA印迹磁性纳米颗粒表现出几种显着的优点，例如良好的特异性，高结合亲和力和低结合pH朝向CGA，这使得分子印迹材料成为用于选择性富集CGA的理想吸附剂。制备的CGA印迹磁性纳米颗粒成功应用于果汁中CGA的分析。

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