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Pore-size tunable mesoporous zirconium organophosphonates with chiral (L)-proline for enzyme adsorption
Shi, Xin; Liu, Jian; Li, Congming; Yang, Qihua
Source PublicationINORGANIC CHEMISTRY
2007-09-17
DOI10.1021/ic700892z
Volume46Issue:19Pages:7944-7952
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Inorganic & Nuclear
WOS Research AreaChemistry
WOS KeywordSULFATE WATER-SYSTEM ; ALUMINUM ORGANOPHOSPHONATES ; MOLECULAR-SIEVES ; CATIONIC SURFACTANT ; PHASE-DIAGRAM ; PHOSPHATE ; PHOSPHONATES ; MYOGLOBIN ; PROTEINS ; MCM-41
AbstractMesoporous zirconium organciphosphonates with a tunable mesopore (pore diameter: from 4.8 to 16.3 nm) were synthesized through co-condensation of ZrCl4 and 1-phosphomethylproline (H3PMP) with the aid of organic additives in the presence of an anionic surfactant (sodium dodecyl sulfate) under weak acidic conditions. The organic additives, tetrahydrofuran, can effectively strengthen the assembly of ZrCl4 and H3PMP around the surfactant micelles through decreasing the hydrolysis and condensation rate of ZrCl4. The results of the N-2 sorption isotherm and SEM image show that zirconium phosphate with a bimodal structure is formed by calcination of mesoporous zirconium organophosphonate. Mesoporous zirconium organophosphonates can effectively adsorb lysozyme (Lz),and papain, and the adsorption equilibrium for Lz can be reached within 30 min. The adsorption capacity for Lz and papain can reach as high as 438 and 297 mg/g, respectively. Furthermore, Lz adsorbed on mesoporous zirconium organophosphonates can retain its structural conformation as in its free state, and no leaching of Lz from the solid was observed when shaking the Lz-loaded solid in a buffer solution. Also, the existence Of L-proline in the mesopore could help the adsorption of papain at a pH value lower than the p/ of papain.
Language英语
WOS IDWOS:000249371500037
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140573
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Liaoning Normal Univ, Dept Chem, Inst Chem Functionalized Mat, Dalian 116029, Peoples R China
Recommended Citation
GB/T 7714
Shi, Xin,Liu, Jian,Li, Congming,et al. Pore-size tunable mesoporous zirconium organophosphonates with chiral (L)-proline for enzyme adsorption[J]. INORGANIC CHEMISTRY,2007,46(19):7944-7952.
APA Shi, Xin,Liu, Jian,Li, Congming,&Yang, Qihua.(2007).Pore-size tunable mesoporous zirconium organophosphonates with chiral (L)-proline for enzyme adsorption.INORGANIC CHEMISTRY,46(19),7944-7952.
MLA Shi, Xin,et al."Pore-size tunable mesoporous zirconium organophosphonates with chiral (L)-proline for enzyme adsorption".INORGANIC CHEMISTRY 46.19(2007):7944-7952.
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