Stable Colloidal Silica Particles Doped with a Fluorescent Dye
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Date
2020-01-01
Authors
Mulikova, Tomiris
Khamkhash, Laura
Dukenbayev, Kanat
Molkenova, Anara
Atabaev, Timur
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing
Abstract
In 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.
Description
Keywords
Research Subject Categories::NATURAL SCIENCES::Chemistry
Citation
Mulikova, 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.