| POROUS SILICA NANO-TUBE AS HOST FOR ENZYME IMMOBILIZATION |
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| 引用本文： | HaominDing LixiongWen JianfengChen. POROUS SILICA NANO-TUBE AS HOST FOR ENZYME IMMOBILIZATION[J]. 中国颗粒学报, 2004, 2(6): 270-273 |
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| 作者姓名： | HaominDing LixiongWen JianfengChen |
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| 作者单位： | KeyLabforNanomaterials,MinistryofEducation;ResearchCenteroftheMinistryofEducationforHighGravityEngineering＆Technology,BeijingUniversityofChemicalTechnology,Beijing100029,P.R.China |
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| 摘 要： | With their hollow morphology and large openings, the as-synthesized porous silica nano-tubes (NTPS), prepared through a sol-gel routine by using nano-sized needle-shaped CaCO3 particles as templates, were used as host for enzyme immobilization. Bioimmobilization study showed that enzyme molecules could not only be adsorbed on the external surface of NTPS but also entrapped in their inner hollow cores, leading to higher enzyme loading capacities of NTPS (more than 350 mg/g silica) in a shorter time, as compared to common porous silica (less than 50 mg/g) and most conventional mesoporous silica materials (less than 100 mg/g).
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| 关 键 词： | 多孔渗水 硅纳米管 碳酸钙 纳米颗粒 溶解酵素 酶固定 |
POROUS SILICA NANO-TUBE AS HOST FOR ENZYME IMMOBILIZATION |
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| Haomin Ding,Lixiong Wen and Jianfeng Chen Key Lab for Nanomaterials,Ministry of Education, Research Center of the Ministry of Education for High Gravity Engineering , Technology,Beijing University of Chemical Technology,Beijing ,P. R. China Author to whom correspondence should be addressed. E-mail: chenjf@mail.buct.edu.cn. POROUS SILICA NANO-TUBE AS HOST FOR ENZYME IMMOBILIZATION[J]. China Particuology, 2004, 2(6): 270-273 |
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| Authors: | Haomin Ding Lixiong Wen Jianfeng Chen Key Lab for Nanomaterials Ministry of Education Research Center of the Ministry of Education for High Gravity Engineering & Technology Beijing University of Chemical Technology Beijing P. R. China Author to whom correspondence should be addressed. E-mail: chenjf@mail.buct.edu.cn |
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| Affiliation: | Haomin Ding,Lixiong Wen and Jianfeng Chen* Key Lab for Nanomaterials,Ministry of Education, Research Center of the Ministry of Education for High Gravity Engineering & Technology,Beijing University of Chemical Technology,Beijing 100029,P. R. China *Author to whom correspondence should be addressed. E-mail: chenjf@mail.buct.edu.cn |
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| Abstract: | With their hollow morphology and large openings, the as-synthesized porous silica nano-tubes (NTPS), prepared through a sol-gel routine by using nano-sized needle-shaped CaCO3 particles as templates, were used as host for enzyme immobilization. Bioimmobilization study showed that enzyme molecules could not only be adsorbed on the external surface of NTPS but also entrapped in their inner hollow cores, leading to higher enzyme loading capacities of NTPS (more than 350 mg/g silica) in a shorter time, as compared to common porous silica (less than 50 mg/g) and most conventional mesoporous silica materials (less than 100 mg/g). |
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| Keywords: | porous silica nano-tube nanosized CaCO3 lysozyme enzyme immobilization |
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