Polysaccharide-based hybrid nanostructures with tunable magnetic response
| Autor: | J.G. Durán-Guerrero, Javier Rivera De la Rosa, Alejandro Torres-Castro, Nubia E. Torres-Martínez, M. A. Garza-Navarro, V. A. González-González |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Materials science Nanostructure Morphology (linguistics) Mechanical Engineering Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Polysaccharide 01 natural sciences 0104 chemical sciences Template chemistry X-ray photoelectron spectroscopy Chemical engineering Mechanics of Materials Transmission electron microscopy General Materials Science Fourier transform infrared spectroscopy 0210 nano-technology |
| Zdroj: | Materials Science and Engineering: B. 243:158-166 |
| ISSN: | 0921-5107 |
| DOI: | 10.1016/j.mseb.2019.04.007 |
| Popis: | In this contribution, the development of polysaccharide-based magnetic hybrid nanostructures (HNs) is reported. A one-pot soft-chemistry approach was followed in order to obtain HNs composed by cobalt-ferrite nanoparticles (CoSNPs) that were assembled into carboxymethyl-cellulose (CMC) templates, whose size and morphology are controllable. The synthesized HNs were characterized by transmission electron microscopy, X-Ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and magnetic measuring. The experimental evidence indicates that both size and morphology of the CMC templates varies according to the CoSNPs weight content in the HNs, as well as to the hydration time of the CMC used as template. Moreover, these morphological features modify the hysteretic characteristics and thermal relaxation of the CoSNPs assemblies, due to the change on the mean distance among particles in the CMC templates. Thus, the magnetic response of these HNs can be tuned from the control of the morphology of the CMC templates where CoSNPs are assembled. |
| Databáze: | OpenAIRE |
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