Thermo luminescence and optically stimulated luminescence characteristics of Al2O3 doped with Tb

In the present work policrystals of alpha - Al2O3 doped with terbium were synthesized using the solvent evaporation method. the samples were prepared using Al(NO3)(3)center dot 9H(2)O and Tb(NO3)(3).5H(2)O reagents, with Tb concentrations between 1 and 5 mol% and thermally treated at high temperature above similar to 1400 degrees C. X-ray diffraction measurements showed the a-phase formation of samples. TL glow curve presented an intense peak at similar to 190 degrees C and two other with low intensity at 290 and 350 degrees C after gamma irradiation. the best doping concentration which presented high luminescence was the sample doped with 3 mol% of Tb. U spectra and fluorescence measurements showed similar luminescence spectra with lines attribute to Tb3+ ions. A linear behavior to gamma dose between 1 and 20 Gy was observed in TL, using 190 degrees C peak as well as in OSL signal, this last carried out using 532 nm wavelength stimulation. (C) 2014 Elsevier B.V. All rights reserved.Technol Fac São Paulo, São Paulo, BrazilUniversidade Federal de São Paulo, Santos, BrazilUniversidade Federal de São Paulo, Santos, BrazilWeb of Scienc

RNA Nanotechnology

Cite this entry as: Yaradoddi J.S. et al. (2019) RNA Nanotechnology. In: Martínez L., Kharissova O., Kharisov B. (eds) Handbook of Ecomaterials. Springer, Cham Publisher Name: Springer, Cham DOI: https://doi.org/10.1007/978-3-319-68255-6_193 Print ISBN: 978-3-319-68254-9 Online ISBN: 978-3-319-68255-6 First Online: 14 February 2019DNA, RNA, and proteins are seemed to be immensely substantial tools for nanobiotechnological applications; this is since their exceptional biochemical properties and role. Particularly RNA is categorized over comparatively high-temperature stability, varied organizational pliability, and their performance in natural circumstances. Above properties made, RNA, a valued constituent for bionanotechnology processes and usefulness, especially RNA nanotechnology, could synthesize complex molecules using simple molecules through de nova nanostructures having exceptional utility by the strategy, integration, and manipulations of most predominant processes which are usually based on different RNA structures and because of their vital biochemical properties. The current chapter emphasis on the basic principles inspires the normal design of RNA nanostructures, pronounces the important methods that are used in constructing nanoparticles’ self-assemblages, and further describes the associated challenges and excelled opportunities of RNA nanotechnology in near future.Peer reviewe