详细信息

热聚合制备左氧氟沙星分子印迹聚合物的分子识别特性    

Characteristics of Levofloxacin Imprinted Polymers Prepared via Thermal Polymerization Method

文献类型:期刊文献

中文题名:热聚合制备左氧氟沙星分子印迹聚合物的分子识别特性

英文题名:Characteristics of Levofloxacin Imprinted Polymers Prepared via Thermal Polymerization Method

作者:邴乃慈[1];许振良[1];杨座国[1];王学军[1];冯建立[1]

机构:[1]华东理工大学化学工程研究所,上海200237

年份:2006

卷号:23

期号:10

起止页码:1085

中文期刊名:应用化学

外文期刊名:Chinese Journal of Applied Chemistry

收录:CSTPCD;;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;

基金:国家重点基础研究发展计划("九七三"计划)资助项目(2003CB615705)

语种:中文

中文关键词:左氧氟沙星;分子印迹聚合物;Scatchard分析;热力学

外文关键词:levofloxacin ( LVFX), molecularly imprinted polymer, scatchard analysis, thermodynamics

摘要:以左氧氟沙星(LVFX)为模板分子,α-甲基丙烯酸(MAA)为功能单体,制备了能选择性识别LVFX的分子印迹聚合物(M IPs)。紫外光谱和红外光谱分析结果表明,该M IPs通过氢键和离子键对LVFX进行识别;Scatchard分析显示,MAA与LVFX在自组装过程中形成了2类结合位点,最大表观结合容量Qm ax分别为9.76和25.75μmol/g,在10 m in中内基本完成了对LVFX的选择性吸附;M IPs热力学研究表明,吸附过程是自发进行的,ΔΔH=-1.18 kJ/mol和ΔΔS=-0.27 J/(mol.K)。
Molecularly imprinted polymers (MIPs) were synthesized via thermal polymerization method with levofloxacin( LVFX ) as template and methyacrylic acid as functional monomer. The UV and IR spectra indicated that the MIPs could recognize LVFX molecule through hydrogen-bond and ionic-bond interactions. Scatchard analysis showed that two kinds of recognition sites were formed, and the maximum apparent binding capacities were 9.76 p, mol/g and 25.75 μmol/g, respectively. The selective adsorption of LVFX on MIPs could be completed in 10 min. On the basis of isothermal binding thermodynamics, the absorption to the template was spontaneous, and AAH= -1.18 kJ/mol and AAS = -0.27 J/(mol · K).

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