نتایج جستجو برای: maghemite nanoparticles

تعداد نتایج: 107315  

Journal: :Applied sciences 2022

In this work, an RVC electrode coated with magnetic iron oxide nanoparticles was used for the degradation of methylene blue as a model dye. The electrofenton process carried out by reduction oxygen dissolved in electrolyte on modified to produce hydrogen peroxide. presence magnetite/maghemite structure produces formation OH∙ radicals that oxidize blue. RVC/coated prepared two different methodol...

2011
Marcella LB Carneiro Eloiza S Nunes Raphael CA Peixoto Ricardo GS Oliveira Luiza HM Lourenço Izabel CR da Silva Andreza R Simioni Antônio C Tedesco Aparecido R de Souza Zulmira GM Lacava Sônia N Báo

BACKGROUND Rhodium (II) citrate (Rh(2)(H(2)cit)(4)) has significant antitumor, cytotoxic, and cytostatic activity on Ehrlich ascite tumor. Although toxic to normal cells, its lower toxicity when compared to carboxylate analogues of rhodium (II) indicates (Rh(2)(H(2)cit)(4)) as a promising agent for chemotherapy. Nevertheless, few studies have been performed to explore this potential. Superparam...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

magnetic nanoparticles are the good choice for using in mri as the contrast agent. iron oxide particles such as magnetite (fe3o4) or its oxidized form maghemite (γ-fe2o3) are the most commonly employed in biomedical applications. in this study, we synthesized and optimized the preparation of chitosan manganese-ferrite nanoparticles (cmn-fe nps) and evaluated its ability for the mice macrophage ...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2008
Mélanie Auffan Jérôme Rose Olivier Proux Daniel Borschneck Armand Masion Perrine Chaurand Jean-Louis Hazemann Corinne Chaneac Jean-Pierre Jolivet Mark R Wiesner Alexander Van Geen Jean-Yves Bottero

When normalized per unit of surface area, the quantity of arsenic adsorbed at the maghemite surface remains constant for particles between 300 and 20 nm. However, nanoparticles smaller than 20 nm exhibit enhanced adsorption capacity. The origin of this observed size-dependence for adsorption or "nano effect" is unclear. Arsenic was chosen as a probe of the surface structure to explore adsorptio...

2015
Maya Raman Viswambari Devi Mukesh Doble

BACKGROUND Carrageenans are naturally occurring hydrophilic, polyanionic polysaccharide bioploymers with wide application in pharmaceutical industries for controlled drug delivery. Magnetic nanoparticles with their exceptional properties enable them to be an ideal candidate for the production of functional nanostructures, thus facilitating them for biomedical applications. The development of no...

Journal: :Journal of Magnetism and Magnetic Materials 2015

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