Abstract
Two series of copper ferrites are prepared using the chemical compositional formula Cu1.0-3y Fe2.0-2x Mox + yO4.0. They are calcinated at 750 C and sintered at 950C.When x =y = 0.0, the e′ of the basic copper ferrite is probably due to electronic exchange interactions of copper and iron ions as Cu2+↔ Cu1+ and Fe3+↔ Fe2+. The observed value of dielectric constant (є′) decreases as a function of substituent concentration (x) up to x = 0.20 and for further values of ‘x’ it found to increase. In the case of ‘C’ (x = 0) series ferrites є′ decreases with substituent concentration (y) up to y = 0.04, later it found to increase. The dispersion of ac resistivity with frequency is observed indicating their strong dependence on frequency as in the case of dielectric behaviour. These results are explained with different possible mechanisms.
Highlights
The green fluorescent protein (GFP) is widely known in science and technology, providing a useful tool that spans through all branches of biological sciencesJournal of Nuclear Physics, Material Sciences, Radiation and Applications Vol-4, No-1, August 2016 pp. 49–57Beltrán, K and many other fields
Previous studies show that fluorescence intensity depends on factors such as pH, the amount of dilute oxygen in the medium and the number of transformed bacteria [10]; for a system with equal physicochemical conditions is important to acknowledge the fluorescence variation in function of temperature as it is a factor that enables the monitoring of unfolding processes in proteins
Bacteria in liquid media samples were prepared under same conditions above mentioned, and the emission spectrum displayed a decrease in the fluorescence intensity as the temperature was increased
Summary
The green fluorescent protein (GFP) is widely known in science and technology, providing a useful tool that spans through all branches of biological sciencesJournal of Nuclear Physics, Material Sciences, Radiation and Applications Vol-4, No-1, August 2016 pp. 49–57Beltrán, K and many other fields. Such characteristics represent great advantages, especially in molecular biology, where it can be used as a marker for proteins of interest since the structure and function of the involved proteins remain normal [9], which has empowered the study of biological processes with real time resolution.
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