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- Title
A Magnetically Drivable Nanovehicle for Curcumin with Antioxidant Capacity and MRI Relaxation Properties.
- Authors
Magro, Massimiliano; Campos, René; Baratella, Davide; Lima, Giuseppina; Holà, Katerina; Divoky, Clemens; Stollberger, Rudolf; Malina, Ondrej; Aparicio, Claudia; Zoppellaro, Giorgio; Zbořil, Radek; Vianello, Fabio
- Abstract
Curcumin possesses wide-ranging anti-inflammatory and anti-cancer properties and its biological activity can be linked to its potent antioxidant capacity. Superparamagnetic maghemite (γ-Fe2O3), called surface-active maghemite nanoparticles (SAMNs) were surface-modified with curcumin molecules, due to the presence of under-coordinated FeIII atoms on the nanoparticle surface. The so-obtained curcumin-modified SAMNs (SAMN@curcumin) had a mean size of 13±4 nm. SAMN@curcumin was characterized by transmission and scanning electron microscopy, UV/Vis, FTIR, and Mössbauer spectroscopy, X-ray powder diffraction, bulk susceptibility (SQUID), and relaxometry measurements (MRI imaging). The high negative contrast proclivity of SAMN@curcumin to act as potential contrast agent in MRI screenings was also tested. Moreover, the redox properties of bound curcumin were probed by electrochemistry. SAMN@curcumin was studied in the presence of different electroactive molecules, namely hydroquinone, NADH and ferrocyanide, to assess its redox behavior. Finally, SAMN@curcumin was electrochemically probed in the presence of hydrogen peroxide, demonstrating the stability and reactivity of bound curcumin.
- Subjects
CURCUMIN; MAGNETIC resonance imaging; SUPERPARAMAGNETIC materials; SCANNING electron microscopy; ULTRAVIOLET-visible spectroscopy; FOURIER transform infrared spectroscopy; MOSSBAUER spectroscopy; X-ray powder diffraction; THERAPEUTICS
- Publication
Chemistry - A European Journal, 2014, Vol 20, Issue 37, p11913
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.201402820