Year-end Sale % OFF 
Abstract
Three types of colloidal systems based on CeO2−x, GdYVO4:Eu3+ and CePO4:Tb3+ are compared in this work. Nanoparticles with diameter 1.9±0.3nm were stabilized by sodium citrate. Ultramicroheterogeneous dispersion in water was found to be a typical hydrophobic colloidal system with negatively charged particles surface. CeO2−x colloidal solutions were chosen as a model system. Using coagulation by inorganic electrolytes, it was shown, that both individual nanoparticles and their agglomerates, which remain in a dynamic equilibrium of agglomerization-peptization, can be present in solutions. The reaction of the autoxidation of epinephrine to adrenochrome was used in order to determine the ability of nanoparticles to inactivate superoxide radicals. Superoxide dismutase (SOD) activity of CeO2−x nanoparticles increases during the decay of agglomerates in solution. Nanoparticles GdYVO4: Eu3+ as well as CeO2−x exhibit SOD mimetic activity.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
