ENERGY TRANSFER PROBING AS THE METHOD FOR TESTING RARE-EARTH IONS DOPED “GREEN” NANOPARTICLES AS FLUORESCENT AGENT FOR BIOIMAGING
Yurii V. Orlovskii
1. A.M. Prokhorov General Physics Institute RAS, Vavilov st. 38, Moscow 119991, Russia 2. Institute of Physics, University of Tartu, W.Ostwaldi st.1, Tartu 50411, Estonia.
Keywords: Fluorescence quenching, NIR spectral range, energy transfer, nanocrystals, bioimaging
Abstract

The quenching of the fluorescence of active dopant (Nd3+) by randomly distributed quenchers (–OH) positioned in the volume of the NPs is a major dissipative channel that directly impacts the quality of the nanoparticles as fluorescent agent in the near IR spectral range. First, a basic understanding of the quenching mechanism has direct practical value for optimization of their efficiency. Second, the fluorescence kinetic studies provide information on the structure of a system and the types of physical interactions that are realized in the process of energy migration and dissipation of optical excitation. In view of the foregoing, the reliable and very sensitive method for the quality control of the fluorescent nanoparticles based on the analysis of the kinetics of impurity quenching, “an energy transfer probing”, is very perspective.

Article Information

Identifiers and Pagination:
Year:2017
Volume:2
First Page:1
Last Page:3
Publisher Id: (2017 ). 2:1. 1-3
Article History:
Received:January 5, 2017
Accepted:February 21, 2017
Collection year:2017
First Published:February 25, 2017


© 2016 The Author(s). This open access article is distributed under a Creative Commons Attribution (CC-BY) 4.0 license. You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. No additional restrictions You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits
Editor in Chief
Yurii Orlovskii (Dr.Sc., Ph.D)
Leading Scientist, Laser Materials and Technologies Research, Center, General Physics Institute, RAS 38 Vavilov st., bld. 4, 119991, Moscow, Russia

Bibliography

Dr. Yurii Orlovskii Dr.Sc., Ph.D is Leading scientist, Department of Laser Materials and Photonics of the Laser Materials and Technologies Research Center (LMT RC) of A.M. Prokhorov General Physics Institute (GPI) Russian Academy of Sciences (RAS) Half time Research Fellow Faculty of Physics and Chemistry, Institute of Physics, University of Tartu, Estonia.  Dr. Orloski completed his Doctor of Sciences (Physics and Mathematics), General Physics Institute of Russian Academy of Sciences, Moscow, on November 20, 1998. He completed his Sciences (equivalent of Ph.D.), General Physics Institute of Russian Academy of Sciences, Moscow, Solid State Physics. The diploma of Highest Education (equivalent of Master of Sciences), Moscow Power Engineering Institute, Moscow, Russia, Electronic Technique awared in 28.02.1981. 

So his research interest include the optical properties of laser crystals, ceramics, dielectric nanocrystals and nanocomposites doped by rare-earth ions and transition metals ions. Experimental and theoretical aspects of nonradiative relaxation, energy migration and energy transfer in nanocrystals. Photonic crystals (opal-like matrixes). Experimental and theoretical aspects of multiphonon relaxation and energy transfer of the optical excitations in solids. Physics of mid IR lasers. Pulsed tunable solid state (including color centers) lasers. Time-resolved fluorescence site- selective spectroscopy of solids, nanosecond correlated photon counting. Other research interests include the development of laser-based techniques for environmental monitoring and medical diagnostics, optical and quantum computers. You may his further information here.

Journal Highlights
Abbreviation: J Exp Phys
doi: http://dx.doi.org/10.21065/2520-5994
Frequency: Annual
Current Volume: 2 (2017)
Next volume: December, 2018 (Volume 3)
Back volumes: 1-2
Starting year: 2016
Nature: Online
Submission: Online
Language: English
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