Structure and properties of surface modified magnetic hollow silica spheres

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F12%3A43893667" target="_blank" >RIV/60461373:22340/12:43893667 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Structure and properties of surface modified magnetic hollow silica spheres
Original language description
The aim of this work is to study the possibility of active control of substance's diffusion across the silica shell of prepared spheres. Depending on the method and its parameters we prepared hollow spheres with a mean size ranged from tens of nanometersto tens of micrometers.. The resultant spheres have a porous silica (SiO 2 ) shell and a hollow core which includes nanoparticles of iron oxides (Fe 2 O 3 / Fe 3 O 4 ). We tested two approaches for controlling the diffusion across the silica shell: i) so-called polymer brushes systems and ii) covering the surface of spheres by a phase change material (Fig. 1). We chose thermoresponsive polymer poly(N-isopropylacrylamide) (PNIPAM) as polymer brushes and palm oil as the phase-change material. Both of them were bound on the surface and inside the pores of prepared hollow microspheres and the release kinetics were studied.
Czech name
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Czech description
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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