A robust method for fabrication of monodisperse magnetic
A robust method for fabrication of monodisperse magnetic mesoporous silica nanoparticles with core-shell structure as anticancer drug carriers. Author links open overlay panel Mahsa Asgari a Meysam Soleymani a Taghi Miri a b Abolfazl Barati a. Show more. Share. Cite.
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Fabrication of Silica Shell Photonic Crystals through
· As solvent is evaporated from a dispersion of these monodisperse core-shell particles the PNIPAm cores shrink and the silica particles on the surface form a silica shell. During this process the core-shell particles self assemble into a close-packed array PC. The system is further condensed as the core is removed by calcination at high temperature.
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Ag Dewetting in Cu Ag Monodisperse Core–Shell
Ag Dewetting in Cu Ag Monodisperse Core–Shell Nanoparticles. We report on the synthesis of monodisperse Cu and Cu Ag nanocrystals. Using the same synthetic procedure in three different temperature ranges Cu Ag show very different stability pathways which we interpret as three different growth mechanisms galvanic displacement at low
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Fabrication of polystyrene–PbS core-shell and hollow PbS
· Uniform inorganic- (PbS) coated polymer core-shell and hollow PbS microspheres were prepared by an easy and economical approach. Monodisperse polystyrene (PS) microspheres were used as templates as well as the core of the composite spheres lead sulfide shells were obtained through the reaction of lead acetate (Pb(CH 3 COO) 2 ) and thioacetamide (TAA) at room temperature.
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Synthesis and thermal stability of ZrO2 SiO2 core–shell
· First the zirconia core particles were coated with silica seeds in a pre-encapsulation step. Second silica shells were grown stepwise with thicknesses of ∼26 ∼38 and ∼61 nm by adding TEOS in a modified Stöber approach. The resulting core–shell structure was confirmed by HAADF-STEM imaging.
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Ag Dewetting in Cu Ag Monodisperse Core–Shell
Ag Dewetting in Cu Ag Monodisperse Core–Shell Nanoparticles. We report on the synthesis of monodisperse Cu and Cu Ag nanocrystals. Using the same synthetic procedure in three different temperature ranges Cu Ag show very different stability pathways which we interpret as three different growth mechanisms galvanic displacement at low
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Get PriceDesign and fabrication of novel core-shell nanoparticles
· Superparamagnetic iron oxide nanoparticles (SPIONs) were prepared by co-precipitation method functionalized respectively with tetraethyl orthosilicate (TEOS) and 3-(trimethoxysilyl)propyl methacrylate (TMSPM) and monodispersed by filtration and centrifugation. The vinyl-functionalized monodispersed SPIONs were then coated with a shell of the novel dual-responsive hydrogel having
Get PriceFabrication of monodisperse zirconia-coated core–shell and
· The monodisperse zirconia-coated polystyrene core–shell spheres were prepared in mixed solvents. The influence of the different catalyst with deionized water or ammonia and the volume fraction of acetonitrile in the mixture were investigated systematically with TEM and SEM.
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Plasma-assisted electrochemical synthesis of monodisperse
· Therefore the uniform Au Ag core–shell NPs forms around 41.4 ± 3.8 nm of Au core under the experimental conditions. In summary the proposed diffusion-controlled growth by plasma-assisted electrochemical synthesis via the continuous controlled addition of Au precursor can precisely tune the particle size in the range of 50–300 nm with a
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Monodisperse core-shell structured magnetic mesoporous
· The rational design and precise synthesis of multifunctional hybrid nanostructures with a tailored active core and a large dendritic modified mesoporous structured shell can promote catalysis energy storage and biological applications. Here an oil-water biphase stratification coating strategy has been developed to prepare monodisperse magnetic dendritic mesoporous silica core-shell
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Precise preparation of highly monodisperse ZrO2 SiO2 core
This paper describes a straightforward method to precisely prepare monodisperse ZrO2 SiO2 core–shell nanoparticles (CSNs) by sol–gel polymerization of TEOS in the presence of ZrO2 cores without additional capping agents. We studied the morphology and composition of CSNs by Scanning Electron Microscopy (SEM) Transmission Electron Microscopy (TEM) and X-ray Diffraction (XRD).
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Design and fabrication of novel core-shell nanoparticles
· Superparamagnetic iron oxide nanoparticles (SPIONs) were prepared by co-precipitation method functionalized respectively with tetraethyl orthosilicate (TEOS) and 3-(trimethoxysilyl)propyl methacrylate (TMSPM) and monodispersed by filtration and centrifugation. The vinyl-functionalized monodispersed SPIONs were then coated with a shell of the novel dual-responsive hydrogel having
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A Facile Synthesis and Characterization of Monodisperse
· In this paper a facile sol–gel process for producing monodisperse spherical and nonaggregated pigment particles with a core/shell structure is reported. Spherical silica particles (245 and 385 nm in diameter) and Cr 2 O 3 α‐Fe 2 O 3 ZnCo 2 O 4 CuFeCrO 4 MgFe 2 O 4 and CoAl 2 O 4 pigments are selected as cores and shells respectively.
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Silica‐Coated Metal NanoparticlesLiu2010Chemistry
· For example Schüth and co-workers used monodisperse silica-coated gold nanoparticles (15 nm gold core 45 nm silica shell) as templates for making double-shelled Au SiO 2 ZrO 2 and then etching the silica inter-layer in 1 M sodium hydroxide solution for 16 h. Finally gold nanoparticle-encapsulated zirconia nanocapsules were obtained for use
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Precise preparation of highly monodisperse ZrO2 SiO2 core
This paper describes a straightforward method to precisely prepare monodisperse ZrO2 SiO2 core–shell nanoparticles (CSNs) by sol–gel polymerization of TEOS in the presence of ZrO2 cores without additional capping agents.
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Synthesis and thermal stability of ZrO2 SiO2 core–shell
· First the zirconia core particles were coated with silica seeds in a pre-encapsulation step. Second silica shells were grown stepwise with thicknesses of ∼26 ∼38 and ∼61 nm by adding TEOS in a modified Stöber approach. The resulting core–shell structure was confirmed by HAADF-STEM imaging.
Get PriceA robust method for fabrication of monodisperse magnetic
A robust method for fabrication of monodisperse magnetic mesoporous silica nanoparticles with core-shell structure as anticancer drug carriers. Author links open overlay panel Mahsa Asgari a Meysam Soleymani a Taghi Miri a b Abolfazl Barati a. Show more. Share. Cite.
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One-pot synthesis of monodisperse CoFe2O4 Ag core-shell
· In recent years monodispersed magnetic nanoparticles with a core/shell structure are expected for their wide applications including magnetic fluid recoverable catalysts and biological analysis. However their synthesis method needs numerous processes such as solvent substitution exchange of protective agents and centrifugation. A simple and rapid method for the synthesis of
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A convenient and templated method for the fabrication of
A simple and widely applicable methodology was presented to synthesize monodisperse micrometer hollow titania spheres (HTS) based on the templating method. It was performed by
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Research Article A Convenient and Templated Method
· a series of monodisperse micrometer HTS were fabricated basedonalteringthesizeofPSAtemplatespheresreferencing to the previous study .. . Preparation of Hollow Zirconia Spheres. In the same experimental facility the di erent sizes of hollow zirconia sphereswithcontrollablediametersweresynthesizedfollow-ing the same procedure mentioned above.
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Direct Fabrication of Monodisperse Silica Nanorings from
· We report a new type of nanosphere colloidal lithography to directly fabricate monodisperse silica (SiO2) nanorings by means of reactive ion etching of hollow SiO2 spheres. Detailed TEM SEM and AFM structural analysis is complemented by a model describing the geometrical transition from hollow sphere to ring during the etching process. The resulting silica nanorings can be readily
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Microfluidic-Assisted Fabrication of Monodisperse Core
· core–shell microcapsules which are prepared from double-emulsion droplets constructed using microfluidic devices. Monodisperse microcapsules containing oxalic acid are prepared with a coe cient of variation (CV) size of <5 and the core-material encapsulation e ciency of >90 .
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Fabrication of copper(II)-coated magnetic core-shell
· Fabrication of copper(II)-coated magnetic core-shell nanoparticles Fe 3 O 4 SiO 2-2-aminobenzohydrazide and investigation of its catalytic application in the
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Ag Dewetting in Cu Ag Monodisperse Core–Shell
Ag Dewetting in Cu Ag Monodisperse Core–Shell Nanoparticles. We report on the synthesis of monodisperse Cu and Cu Ag nanocrystals. Using the same synthetic procedure in three different temperature ranges Cu Ag show very different stability pathways which we interpret as three different growth mechanisms galvanic displacement at low
Get PriceThe preparation and properties of monodisperse core-shell
The monodisperse core-shell silica magnetic microspheres (MMS) were synthesized by sol–gel method gelling in the emulsion. Optical microscope (OM) field emission scanning electron microscope (FESEM) nitrogen adsorption and desorption Brunauer Emmett Teller Procedure (BET) isotherms and Barrett-Joyner-Halenda (BJH) pore size distribution measurements X-ray diffraction (XRD) energy
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Microfluidic-Assisted Fabrication of Monodisperse Core
· core–shell microcapsules which are prepared from double-emulsion droplets constructed using microfluidic devices. Monodisperse microcapsules containing oxalic acid are prepared with a coe cient of variation (CV) size of <5 and the core-material encapsulation e ciency of >90 .
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Direct Fabrication of Monodisperse Silica Nanorings
DOI 10.1021/acsami.6b00733 Corpus ID 84023. Direct Fabrication of Monodisperse Silica Nanorings from Hollow SpheresA Template for Core-Shell Nanorings. article Zhong2016DirectFO title= Direct Fabrication of Monodisperse Silica Nanorings from Hollow SpheresA Template for Core-Shell Nanorings. author= Kuo Zhong and J. Li and L. Liu and W. Brullot and M. Bloemen and A. Volodin
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Fabrication and characterization of monodisperse zinc
The submicrometer monodisperse zinc sulfide (ZnS) hollow spheres were synthesized by gamma-ray irradiation at room temperature using monodisperse poly (styrene-methyl methacrylate-acrylic acid) (PSMA) latex spheres as the templates. X-ray diffraction (XRD) spectroscopy transmission electron microscopy thermogravimetric analysis and UV-vis spectroscopy were used to characterize these
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Microfluidic-Assisted Fabrication of Monodisperse Core
· core–shell microcapsules which are prepared from double-emulsion droplets constructed using microfluidic devices. Monodisperse microcapsules containing oxalic acid are prepared with a coe cient of variation (CV) size of <5 and the core-material encapsulation e ciency of >90 .
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