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Morphological and structural evolution of mesoporous silicas in a mild buffer solution and lysozyme adsorption
Liu, Jian; Li, Congming; Yang, Qihua; Yang, Jie; Li, Can; Yang QH(杨启华); Yang QH(杨启华)
刊名LANGMUIR
2007-06-19
DOI10.1021/la7003134
23期:13页:7255-7262
收录类别SCI
文章类型Article
部门归属5
项目归属506,503
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Materials Science
关键词[WOS]SILICEOUS HOLLOW SPHERES ; MOLECULAR-SIEVES ; HYDROTHERMAL STABILITY ; HIERARCHICAL ORDER ; SBA-15 ; IMMOBILIZATION ; COPOLYMERS ; MECHANISM ; VESICLES ; PORES
英文摘要Mesoporous silicas with various morphologies and structures were synthesized with the aid of 2,2,4-trimethylpentane (TMP) in the presence of nonionic surfactant P123 [(EO)(20)(PO)(70)(EO)(20)] as a structure-directing agent under mild reaction conditions (HAc-NaAc buffer solution, pH 4.4). The ropelike particles formed by end-to-end interconnected nanorods were obtained at a TMP/P123 weight ratio of 0.5. It is noteworthy to mention that the mesoporous nanorods have channels running parallel to the short axis. The silica hollow spheres can be obtained at a higher TMP/P123 weight ratio because of the fusion of the primary nanorods around the interface of the O/W emulsion. Initial synthesis temperatures of 15, 25, and 40 degrees C can lead to mesoporous silicas with highly ordered 2D hexagonal mesostructure, vesicular mesostructure, and mesostructured cellular foams (MCF), respectively. The mesoporous silicas exhibit high adsorption capacity (up to 536 mg g(-1)) and very rapid (<5 min to reach equilibrium) lysozyme immobilization. More importantly, it is revealed that mesoporous silica hollow spheres with rugged surfaces can greatly accelerate the adsorption rate of the enzyme during the adsorption process.
语种英语
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WOS记录号WOS:000247145300055
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被引频次:85[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/98833
专题中国科学院大连化学物理研究所
通讯作者Yang QH(杨启华); Yang QH(杨启华)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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GB/T 7714
Liu, Jian,Li, Congming,Yang, Qihua,et al. Morphological and structural evolution of mesoporous silicas in a mild buffer solution and lysozyme adsorption[J]. LANGMUIR,2007,23(13):7255-7262.
APA Liu, Jian.,Li, Congming.,Yang, Qihua.,Yang, Jie.,Li, Can.,...&杨启华.(2007).Morphological and structural evolution of mesoporous silicas in a mild buffer solution and lysozyme adsorption.LANGMUIR,23(13),7255-7262.
MLA Liu, Jian,et al."Morphological and structural evolution of mesoporous silicas in a mild buffer solution and lysozyme adsorption".LANGMUIR 23.13(2007):7255-7262.
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