Decreasing of the concentration quenching of fluorescent dye in a solution by introducing it to nanoparticles of silicon dioxide
Journal Title: Eurasian journal of physics and functional materials - Year 2018, Vol 2, Issue 2
Abstract
The technique of introduction a fluorescent dye Tris(bipyridine)ruthenium (II) chloride into nanoparticles of silicon dioxide in isopropyl alcohol was tested. The preparation of nanoparticles was carried out by means of the Stober method. The optimal reaction conditions were determined. It was found out that the penetration of a dye into silicon dioxide nanoparticles reduced the effect of concentration quenching of the dye and made it possible to achieve an increase in fluorescence intensity in the solution more than twofold. An attempt was made to functionalize the obtained particles by introducing amino groups onto the particle surface. Fused silver nanoparticles were seeded with silver nanoparticles.
Authors and Affiliations
A. I. Mantel, A. E. Yensebayeva, S. B. Smatov, I. S. Irgibayeva
Optical assembly for laser alignment of shafts
The article presents a new method of increasing laser radiation power of the receiving device while performing align-ment for reducing excessive pump vibration. The optical arrangement and device design are presented. Th...
Study of influence of mobile phone irradiation to tooth enamel EPR spectra
The contribution of mobile phones influence on electron spin resonance (EPR) spectra formation and electromagnetic noise signal for accuracy of dose estimation on example of tooth enamel samples measurements was investiga...
Investigation of the stability of nanostructures to degradation
The paper presents the dependence of the degradation degree in various aggressive media and time in a medium. The greatest deterioration in crystallographic characteristics of nanostructures in corrosive media is observe...
Exotic nuclides at the reactor pik: pitrap project
The PITRAP-project for mass measurements of exotic nuclides is based on the use of high flux-reactor PIK and a high precision Penning trap mass spectrometry. This combination gives a synergy in exploration of different p...
RESULTS OF RADIOLOGICAL SURVEY OF THE TERRITORY ADJACENT TO THE "ATOMIC" LAKE
The article presents working results of radiation status survey in the territory adjacent to the “Atomic lake”, a venue of the first USSR excavation explosion. In the course of research, a picture of areal radiation conta...