Effect of poly(ethylene oxide)-silane graft molecular weight on the colloidal properties of iron oxide nanoparticles for biomedical applications

• Published in: Journal of colloid and interface science Vol. 377; no. 1; pp. 40 - 50
• Main Authors: Barrera, Carola, Herrera, Adriana P., Bezares, Nayla, Fachini, Estevão, Olayo-Valles, Roberto, Hinestroza, Juan P., Rinaldi, Carlos
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Inc 01.07.2012; Elsevier
• Subjects: Biocompatible Materials - chemistry; Biological; buffers; cell culture; Chemistry; colloidal properties; Colloidal stability; Colloidal state and disperse state; Colloids; Colloids - chemistry; Culture; culture media; ethylene glycol; ethylene oxide; Exact sciences and technology; Ferric Compounds - chemistry; General and physical chemistry; Hydrodynamics; ionic strength; Iron oxide; iron oxides; Magnetic nanoparticles; Media; Molecular Weight; Nanoparticles; Nanoparticles - chemistry; Particle Size; Physical and chemical studies. Granulometry. Electrokinetic phenomena; Poly(ethylene glycol); polyethylene glycol; Polyethylene Glycols - chemistry; Silane; Silanes - chemistry; Stability; Surface Properties; van der Waals forces; X-ray photoelectron spectroscopy; Iron oxide; Colloidal stability; Silane; Magnetic nanoparticles; Poly(ethylene glycol); Water; Nanoparticle; X ray; Density; DLVO theory; Ethylene oxide polymer; Particle; Amine; pH; Photoelectron spectrometry; Molecular mass; Diameter; Surface charge; Stability; Transition element compounds; Hydrodynamics; Polymer; Thickness; Ionic strength; Colloidal suspension; Distribution; Van der Waals interaction; Models; Electrostatics

[Display omitted] ► Stability of PEG-silane grafted iron oxides evaluated in water and cell culture media. ► PEG-silane graft molecular weight had negligible effect on magnetic properties. ► Agreement observed between DLS hydrodynamic diameters and density distribution model. ► PEG molecular weight...