CAS OpenIR  > 研究所(批量导入)
Preparation of Dopamine/Titania Hybrid Nanoparticles through Biomimetic Mineralization and Titanium(IV)-Catecholate Coordination for Enzyme Immobilization
Alternative TitleInd. Eng. Chem. Res.
Yang, Chen1; Wu, Hong1,2,4; Shi, Jiafu2,3; Wang, Xiaoli1; Xie, Jingling1; Jiang, Zhongyi1,2,4
2014-08-13
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume53Issue:32Pages:12665-12672
AbstractIn 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.; 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.
KeywordTitanium-dioxide Thin-films Complexes Adhesive Silica Oxide Dopa Temperature Morphology Protamine
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie501734g
URL查看原文
Indexed BySCI
Language英语
WOS KeywordTITANIUM-DIOXIDE ; THIN-FILMS ; COMPLEXES ; ADHESIVE ; SILICA ; OXIDE ; DOPA ; TEMPERATURE ; MORPHOLOGY ; PROTAMINE
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000340441000013
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11581
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
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.
Files in This Item:
File Name/Size DocType Version Access License
Preparation of Dopam(4505KB) 限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yang, Chen]'s Articles
[Wu, Hong]'s Articles
[Shi, Jiafu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yang, Chen]'s Articles
[Wu, Hong]'s Articles
[Shi, Jiafu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yang, Chen]'s Articles
[Wu, Hong]'s Articles
[Shi, Jiafu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.