Mulikova, TomirisKhamkhash, LauraDukenbayev, KanatMolkenova, AnaraAtabaev, Timur2020-05-112020-05-112020-01-01Mulikova, T., Khamkhash, L., Dukenbayev, K., Molkenova, A., & Atabaev, T. S. (2020, January). Stable Colloidal Silica Particles Doped with a Fluorescent Dye. In IOP Conference Series: Materials Science and Engineering (Vol. 739, No. 1, p. 012039). IOP Publishing.https://doi.org/10.1088/1757-899X/739/1/012039http://nur.nu.edu.kz/handle/123456789/4628In this study, we described the quick synthesis strategy of stable colloidal silica particles encapsulated with a fluorescent dye. Atomic Force Microscopy AFM, Fourier-Transform Infrared Spectroscopy FTIR, and Fluorescence Spectroscopy FS were utilized to characterize the obtained silica particles. AFM analysis revealed that obtained silica particles have a spherical shape with a mean size of 210 ± 13 nm. FS analysis showed that fluorescent dye was successfully incorporated into a silica matrix. In particular, eye-visible green fluorescence emission with a peak maximum at 526 nm was detected. The emission stability of prepared particles was tested in a biologically-relevant pH range, under constant UV irradiation and at different storage time intervals.enAttribution-NonCommercial-ShareAlike 3.0 United StatesAttribution-NonCommercial-ShareAlike 3.0 United StatesResearch Subject Categories::NATURAL SCIENCES::ChemistryArticle