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Synthesis of molecularly imprinted magnetic nanoparticles for selective cytidine adsorption

机译：合成分子印迹磁性纳米粒子对选择性胞嘧啶核苷吸附

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Magnetic molecularly imprinted nanoparticles were fabricated for cytidine adsorption. Molecularly imprinted polymers were prepared by complexing N-methacryloyl-l-histidine/Cu(II) and cytidine as a template molecule in a highly cross-linked polymer. Magnetic molecularly imprinted nanoparticles were tested in batch experiments with aqueous samples of cytidine, and several parameters were investigated. The N-methacryloyl-l-histidine/Cu(II) complex was selected to obtain a rebinding of cytidine on the magnetic nanoparticles. The template molecule was removed using 1.0 M NaCl as a desorption agent. The adsorption of cytidine was optimal in a buffer solution of pH 7.4 for 120 min with adsorption capacity of 39.77 mg/g. The imprinted polymer-based magnetic nanoparticles were selective toward cytidine as compared to the analogs (uridine and thymidine). The adsorption fitted a Langmuir isotherm model with an R-2 value of 0.9861 and the Q(max) value of 43.86 mg/g for the magnetic molecularly imprinted nanoparticles.
机译：磁性分子印迹纳米粒子胞嘧啶核苷吸附的捏造。印迹聚合物被络合的准备N-methacryloyl-l-histidine /铜(II)和胞嘧啶核苷一个模板分子在一个高度交联聚合物。纳米粒子在批量测试实验胞嘧啶核苷水溶液样品,和几个参数研究。N-methacryloyl-l-histidine / Cu (II)复杂选择获得重新绑定的胞嘧啶核苷磁性纳米粒子。用1.0 M氯化钠作为解吸剂移除。胞嘧啶核苷的吸附是最优的缓冲溶液的pH值7.4为120分钟吸附容量为39.77毫克/克。聚合物基磁性纳米颗粒是有选择性的对胞嘧啶核苷相比类似物(尿苷和胸苷)。安装一个朗缪尔等温线模型r2值为0.9861和43.86 Q (max)值毫克/克的磁性分子印迹纳米粒子。

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