Preparation of Dopamine/Titania Hybrid Nanoparticles through Biomimetic Mineralization and Titanium(IV)-Catecholate Coordination for Enzyme Immobilization
文献类型：期刊论文
| 作者 | Yang, Chen1; Wu, Hong1,2,4; Shi, Jiafu2,3; Wang, Xiaoli1; Xie, Jingling1; Jiang, Zhongyi1,2,4 |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2014-08-13 |
| 卷号 | 53期号:32页码:12665-12672 |
| 关键词 | TITANIUM-DIOXIDE THIN-FILMS COMPLEXES ADHESIVE SILICA OXIDE DOPA TEMPERATURE MORPHOLOGY PROTAMINE |
| ISSN号 | 0888-5885 |
| 其他题名 | Ind. Eng. Chem. Res. |
| 中文摘要 | In this study, a facile approach is proposed to prepare dopamine/titania hybrid nanoparticles (DTHNPs), which are synthesized via directly blending titanium(IV) bis(ammonium lactato) dihydroxide (Ti-BALDH) and dopamine aqueous solution. The amino group in dopamine is mainly in charge of inducing the hydrolysis and condensation of titanium precursor to form titania, and the catechol group in dopamine acts as an organic ligand to form titanium(IV)-catecholate coordination. These DTHNPs were characterized by tranmission electron miscroscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The morphology of DTHNPs is changed from slightly cotton-shaped aggregates to monodisperse nanoparticles with the increase of dopamine concentration. As a model enzyme, catalase (CAT) is entrapped in the DTHNPs during the nanoparticle preparation process. Surprisingly, the entrapment efficiency of CAT can be high up to nearly 100%, and no enzyme leakage could be detected. Moreover, immobilized CAT possesses 90% the catalytic activity of free enzyme. |
| 英文摘要 | In this study, a facile approach is proposed to prepare dopamine/titania hybrid nanoparticles (DTHNPs), which are synthesized via directly blending titanium(IV) bis(ammonium lactato) dihydroxide (Ti-BALDH) and dopamine aqueous solution. The amino group in dopamine is mainly in charge of inducing the hydrolysis and condensation of titanium precursor to form titania, and the catechol group in dopamine acts as an organic ligand to form titanium(IV)-catecholate coordination. These DTHNPs were characterized by tranmission electron miscroscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The morphology of DTHNPs is changed from slightly cotton-shaped aggregates to monodisperse nanoparticles with the increase of dopamine concentration. As a model enzyme, catalase (CAT) is entrapped in the DTHNPs during the nanoparticle preparation process. Surprisingly, the entrapment efficiency of CAT can be high up to nearly 100%, and no enzyme leakage could be detected. Moreover, immobilized CAT possesses 90% the catalytic activity of free enzyme. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | TITANIUM-DIOXIDE ; THIN-FILMS ; COMPLEXES ; ADHESIVE ; SILICA ; OXIDE ; DOPA ; TEMPERATURE ; MORPHOLOGY ; PROTAMINE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000340441000013 |
| 公开日期 | 2014-09-30 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11581]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China 2.Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China 3.Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Chen,Wu, Hong,Shi, Jiafu,et al. Preparation of Dopamine/Titania Hybrid Nanoparticles through Biomimetic Mineralization and Titanium(IV)-Catecholate Coordination for Enzyme Immobilization[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2014,53(32):12665-12672. |
| APA | Yang, Chen,Wu, Hong,Shi, Jiafu,Wang, Xiaoli,Xie, Jingling,&Jiang, Zhongyi.(2014).Preparation of Dopamine/Titania Hybrid Nanoparticles through Biomimetic Mineralization and Titanium(IV)-Catecholate Coordination for Enzyme Immobilization.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,53(32),12665-12672. |
| MLA | Yang, Chen,et al."Preparation of Dopamine/Titania Hybrid Nanoparticles through Biomimetic Mineralization and Titanium(IV)-Catecholate Coordination for Enzyme Immobilization".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 53.32(2014):12665-12672. |
入库方式： OAI收割
来源：过程工程研究所
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