نتایج جستجو برای: core shell microspheres
تعداد نتایج: 266330 فیلتر نتایج به سال:
In this study, at first the magnetite (Fe3O4) nano particles were prepared by sol-gel method under inert atmosphere using ferric nitrate (Fe (NO3)3.9H2O) and ethylene glycol (C2H6O2) as precursors. In the next stage, magnetite nanoparticles were modified by Sodium citrate under Ar atmosphere. Also zinc oxaid (ZnO) nanoparticles were provided via co-precipitation route and heat treatment using a...
Department of Physics, University of Central Florida, P.O. Box 162385 Orlando, FL 32816-2385, USA Department of Microelectronics and Semiconductor Devices, Technical University of Moldova, Stefan Cel Mare Boulevard 168, Chisinau MD-2004, Republic of Moldova Apollo Technologies, Inc. 205 Waymont Court, S111, Lake Mary, FL 32746, USA Advanced Materials Processing and Analysis Center, and Departme...
The main aim of this study was to prepare apple pomace polyphenolic extract (APPE- referred to as a core) loaded into biodegradable and commercially available natural polymer such as maltodextrin (MD-referred to as a shell). The polymer coating potentially improves its low stability and bioavailability and also directs the control release of the encapsulated material. The MD-nanoparticles (NPs)...
In this study, the electrocatalytic activity of the Co@Pt core-shell nanoparticles toward the ethanol oxidation reaction has been investigated by cyclic voltammetry and chronoamperometry in acidic and alkaline media in details. The physicochemical data obtained in alkaline solution are compared to those in acidic solution. The obtained results demonstrate that while in the both media Co@Pt core...
Metal binding proteins play many important roles in a broad range of biological processes. Characterization of metal binding proteins is important for understanding their structure and biological functions, thus leading to a clear understanding of metal associated diseases. The present study is the first to investigate the effectiveness of magnetic microspheres functionalized with metal cations...
In this research, a kind of environmentally-friendly inorganic-organic hybrid nanocomposite coating based on silica containing titania/silica core/shell nanoparticles was synthesized and characterized for conservation of facade tiles in historical buildings. The matrix of the composite was prepared by sol-gel process via two methods of ultrasonic and reflux stirring. Tetraethyl orthosilicate (T...
[1] S. Chandrasekhar, in Handbook of Liquid Crystals (Eds: D. Demus, J. Goodby, G. W. Gray, H.-W. Spiess, V. Vill), Wiley-VCH, Weinheim 1998, Vol. 2B, Ch. VIII. [2] N. Boden, R. J. Bushby, J. Clements, M. Jesudason, P. F. Knowles, G. Williams, Chem. Phys. Lett. 1988, 152, 94. N. Boden, R. J. Bushby, J. Clements, M. Jesudason, P. F. Knowles, G. Williams, Chem. Phys. Lett. 1989, 154, 613. [3] D. ...
Novel cellulose–chitosan nanocomposite particles with spherical shape were successfully prepared via mixing of aqueous biopolymer solutions in three different ways. Macroparticles with diameters in the millimeter range were produced by dripping cellulose dissolved in cold LiOH/urea into acidic chitosan solutions, inducing instant co-regeneration of the biopolymers. Two types of microspheres, ch...
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