scholarly journals Синтез и характеризация наночастиц CuIn-=SUB=-2-=/SUB=-S

2020 ◽  
Vol 128 (10) ◽  
pp. 1548
Author(s):  
Е.А. Козлова ◽  
В.И. Кочубей
Keyword(s):  
Luminescence Intensity ◽  
Biological Tissue ◽  
Temperature Sensors ◽  
Luminescence Spectra ◽  
Zns Nanoparticles ◽  
Change Over Time ◽  
Particle Coating ◽  
Absorption And Luminescence Spectra ◽  
Over Time

CuInS2 nanoparticles were synthesized and coated with ZnS. The absorption and luminescence spectra of nanoparticles, as well as the dependencies of the luminescence spectra on temperature, the In/Cu ratio, and particle coating were obtained. It was shown that the properties of nanoparticles change over time after synthesis. The ripened CuInS2 / ZnS nanoparticles luminesce in the range of 600–850 nm. The coating of nanoparticles with a shell significantly increases the luminescence intensity. The obtained nanoparticles can be used as temperature sensors at deep incorporation into biological tissue.

scholarly journals Varying of up-conversion nanoparticles luminescence from the muscle tissue depth during the compression

2021 ◽  
Vol 14 (05) ◽  
Author(s):  
Marina Kozintseva ◽  
Vyacheslav Kochubey ◽  
Julia Konyukhova ◽  
Valery Tuchin
Keyword(s):  
Skeletal Muscle ◽  
Cell Wall ◽  
Luminescence Intensity ◽  
Biological Tissue ◽  
Skeletal Muscles ◽  
Luminescence Spectra ◽  
Excessive Pressure ◽  
Optical Clearing ◽  
Bovine Skeletal Muscle

The current work is focused on the study of optical clearing of skeletal muscles under local compression. The experiments were performed on in vitro bovine skeletal muscle. The time dependence of optical clearing was studied by monitoring the luminescence intensity of NaYF4:Er,Yb upconverting particles located under tissue layers. This study shows the possibility to use upconverting nanoparticles (UCNPs) both for studying the dynamics of the optical clearing of biological tissue under compression and to detect moments of cell wall damage under excessive pressure. The advantage of using UCNPs is the presence of several bands in their luminescence spectra, located both at close wavelengths and far apart.

Relations Between OQ Change Over Time and Counseling Outcomes

2009 ◽  
Author(s):  
Brian Garbarini ◽  
Hung-Bin Sheu ◽  
Dana Weber
Keyword(s):  
Change Over Time ◽  
Counseling Outcomes ◽  
Over Time

CCAPS' Sensitivity to Change Over Time

2010 ◽  
Author(s):  
Sam Nordberg ◽  
Louis G. Castonguay ◽  
Benjamin Locke
Keyword(s):  
Sensitivity To Change ◽  
Change Over Time ◽  
Over Time

The cost of homelessness: Assessing change over time

2003 ◽  
Author(s):  
M. Spano ◽  
P. Toro ◽  
M. Goldstein
Keyword(s):  
Change Over Time ◽  
The Cost ◽  
Over Time

Rethinking social remittances and the migration-development nexus from the perspective of time

2013 ◽  
Vol 10 (1) ◽  
pp. 11-22 ◽  
Author(s):  
Peggy Levitt ◽  
Deepak Lamba-Nieves
Keyword(s):  
Social Influence ◽  
Change Over Time ◽  
Social Remittances ◽  
The Relationship ◽  
Migration And Development ◽  
Over Time

This article explores how the conceptualization, management, and measurement of time affect the migration-development nexus. We focus on how social remittances transform the meaning and worth of time, thereby changing how these ideas and practices are accepted and valued and recalibrating the relationship between migration and development. Our data reveal the need to pay closer attention to how migration’s impacts shift over time in response to its changing significance, rhythms, and horizons. How does migrants’ social influence affect and change the needs, values, and mind-frames of non-migrants? How do the ways in which social remittances are constructed, perceived, and accepted change over time for their senders and receivers?

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