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Dendrimer-like hybrid particles with tunable hierarchical pores
Du, Xin1; Li, Xiaoyu2; Huang, Hongwei3; He, Junhui4; Zhang, Xueji1
2015
Source PublicationNANOSCALE
ISSN2040-3364
Volume7Issue:14Pages:6173-6184
Abstract

Dendrimer-like silica particles with a center-radial dendritic framework and a synergistic hierarchical porosity have attracted much attention due to their unique open three-dimensional superstructures with high accessibility to the internal surface areas; however, the delicate regulation of the hierarchical porosity has been difficult to achieve up to now. Herein, a series of dendrimer-like amino-functionalized silica particles with tunable hierarchical pores (HPSNs-NH2) were successfully fabricated by carefully regulating and optimizing the various experimental parameters in the ethyl ether emulsion systems via a one-pot sol-gel reaction. Interestingly, the simple adjustment of the stirring rate or reaction temperature was found to be an easy and effective route to achieve the controllable regulation towards center-radial large pore sizes from ca. 37-267 (148 +/- 45) nm to ca. 8-119 (36 +/- 21) nm for HPSNs-NH2 with particle sizes of 300-700 nm and from ca. 9-157 (52 +/- 28) nm to ca. 8-105 (30 +/- 16) nm for HPSNs-NH2 with particle sizes of 100-320 nm. To the best of our knowledge, this is the first successful regulation towards center-radial large pore sizes in such large ranges. The formation of HPSNs-NH2 may be attributed to the complex cross-coupling of two processes: the dynamic diffusion of ethyl ether molecules and the self-assembly of partially hydrolyzed TEOS species and CTAB molecules at the dynamic ethyl ether-water interface of uniform small quasi-emulsion droplets. Thus, these results regarding the elaborate regulation of center-radial large pores and particle sizes not only help us better understand the complicated self-assembly at the dynamic oil-water interface, but also provide a unique and ideal platform as carriers or supports for adsorption, separation, catalysis, biomedicine, and sensor.

KeywordMesoporous Silica Nanoparticles Diethyl-ether Controlled-release Hollow Spheres Nanospheres Water Biocompatibility Nanocarriers Delivery Shells
SubtypeArticle
Subject AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1039/c5nr00640f
Indexed BySCI
Language英语
WOS KeywordMesoporous Silica Nanoparticles ; Diethyl-ether ; Controlled-release ; Hollow Spheres ; Nanospheres ; Water ; Biocompatibility ; Nanocarriers ; Delivery ; Shells
Funding Projecthigh-level talent introduction plan of the University of Science & Technology Beijing ; National Natural Science Foundation of China [21401201]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000351934700031
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13839
Collection研究所(批量导入)
Corresponding AuthorDu, Xin
Affiliation1.Univ Sci & Technol Beijing, Dept Chem & Biol Engn, Res Ctr Bioengn & Sensing Technol, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China
4.Chinese Acad Sci, Tech Inst Phys & Chem, Funct Nanomat Lab, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Du, Xin,Li, Xiaoyu,Huang, Hongwei,et al. Dendrimer-like hybrid particles with tunable hierarchical pores[J]. NANOSCALE,2015,7(14):6173-6184.
APA Du, Xin,Li, Xiaoyu,Huang, Hongwei,He, Junhui,&Zhang, Xueji.(2015).Dendrimer-like hybrid particles with tunable hierarchical pores.NANOSCALE,7(14),6173-6184.
MLA Du, Xin,et al."Dendrimer-like hybrid particles with tunable hierarchical pores".NANOSCALE 7.14(2015):6173-6184.
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