Retracted: Synthesis and Research of Nanocompositions of Oxide Materials Based on Titanium Dioxide for use as Contrast Agents in Optical Coherence Tomography
Artem Nikolaevich Kupriyanov
Stavropol State Medical University, Stavropol, Russia.
Diana Evgen’evna Fidarova
North Ossetian State University (Named After K. L. Khetagurov), Vladikavkaz, Republic of North Ossetia, Russia.
Linda Ruslanovna Makhmudova
Medical Institute of the Chechen State University, Grozny, Chechen Republic, Russia.
Magomed Rasulovich Gadzhiev
Dagestan State Medical University, Dagestan, Russia.
Shuainat Ruslanovna Nimatulaeva
Dagestan State Medical University, Dagestan, Russia.
Magomed Narimanovich Durniyazov
Dagestan State Medical University, Dagestan, Russia.
Alina Yuryevna Maslova
Stavropol State Medical University, Stavropol, Russia.
Sergey Nikolaevich Povetkin
North Caucasus Federal University, Stavropol, Russia.
*Author to whom correspondence should be addressed.
Abstract
In this paper, the contrasting properties of titanium dioxide nanoparticles in various compositions were considered. In the course of the work, methods for the synthesis of oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2 and SiO2-TiO2-ZrO2 were developed; the microstructure of oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2and SiO2-TiO2-ZrO2was studied; the stability of oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2and SiO2-TiO2-ZrO2 was determined. The elemental composition of the oxide materials SiO2-TiO2, SiO2-ZrO2, TiO2-ZrO2and SiO2-TiO2-ZrO2 has also been studied using SEM and XRD methods. It was found that SiO2-TiO2-ZrO2 nanocomposites with content of titanium dioxide from 8 to 9.5 % and zirconium dioxide from 0.5 to 2 % are completely insoluble in a highly alkaline medium. Thus, this composition is the most optimal for use as a contrast agent in optical coherence tomography.
This paper has been retracted.