巯丙基修饰的SBA-15对溶菌酶吸附和释放的动力学研究  

THE KINETIC STUDY ON ADSORPTION AND RELEASE OF LYSOZYME ON SULFHYDRYLPROPYL MODIFIED SBA-15

作　　者：代文彦[1] 张卓琦[2] 王海果[1] 张琪[1] 曹希传[1] 

机构地区：[1]中国矿业大学材料科学与工程学院,江苏徐州221116 [2]徐州医学院附属医院心血管内科,江苏徐州221002

出　　处：《石油学报（石油加工）》2009年第A02期109-111,共3页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金(30670557);江苏省自然科学基金(BK2008132);中国矿业大学科技基金(2006B029)资助

摘　　要：选用不同孔径(7.6、9.6、14.9 nm)和比表面积的巯丙基表面修饰的纯硅SBA-15(SBA-pr-SH)为吸附剂对溶菌酶(LYZ)进行吸附,研究其吸附动力学,并对LYZ/SBA-pr-SH进行LYZ释放研究。结果表明,对于不同孔径的SBA-pr-SH,LYZ吸附性质不同;SBA-pr-SH对LYZ吸附符合准二级动力学模型,对LYZ的释放遵循Higuchi模型。Sulfhydrypropyl modified SBA-15 mesoporous silicates （SBA-pr-SH） with different pore sizes （7.6, 9.6, 14.9 nm） and specific surface areas were used as adsorbent to adsorb and release lysozyme biomolecules, in order to investigate its adsorption kinetics. The results showed that the SBA-pr-SH with different pore sizes possessed different adsorption capacities for lysozyme. The adsorption kinetics of SBA-pr-SH corresponded to the very popular pseudo-second order kinetic model. On the other hand, the kinetics of the lysozyme releasing from SBA-pr-SH followed the Higuchi model.

关 键 词：修饰SBA-15 溶菌酶 吸附/释放 动力学 

分 类 号：O643[理学—物理化学]