BR – Page 6 – TechConnect Briefs

Crystallization and optical properties of CCTO thin films under pressure influence

Sequinel T., Tebcherani S.M., Varela J.A., Kubaski E.T., Oliveira L.H., Siu Li M., Universidade Estadual Paulista, BR

The goals of this work were to decrease the synthesis temperature of CCTO thin films using the pressure method, and to improve the homogeneity and density of the CCTO films in order to obtain better [...]

CdMoO4 synthesized by a microwave-assisted hydrothermal method and their photoluminescence and photocatality properties

de Moura A.P., Oliveira L.H., Xavier C.S., Rosa I.L.V., Li M.S., Longo E., Varela J.A., Universidade Estadual Paulista, BR

Metal molybdates had a high application potential in various fields such as photoluminescence, microwave applications, optical fibers, scintillator materials, humidity sensors, and catalysis. In this work CdMoO4 nanoparticles were obtained under hydrothermal conditions using microwave [...]

Microwave-assisted hydrothermal synthesis of ZnO powders with different reagents

Xavier C.S., de Moura A.P., Li M.S., Longo E., Varela J.A., Cava S., Universidade Federal de Pelotas, BR

Zinc oxide (ZnO) is an exceptionally important semiconductor with a direct wide band gap (3.37 eV) and large excitation binding energy (60 meV) at room temperature [1]. In this work, zinc oxide powders were synthesized [...]

Structural refinement and photoluminescence properties of cube-like (Ca1-xCux)TiO3 crystals synthesized by the microwave-hydrothermal method

Oliveira L.H., de Moura A.P., Cavalcante L.S., Gutierrez S.A., Longo E., Varela J.A., Universidade Federal de São Carlos, BR

In this work, (Ca1-xCux)TiO3 crystals with (x = 0, 0.01 and 0.02), were synthesized by the microwave-hydrothermal method at 140ºC for 32 min. The photo-physical properties were studied to analyze the influence of Cu2+ doping [...]

Ferromagnetic Resonance in amine/organic acid caped Au-nanoparticles assisted by rare-earths oxides

Lesseux G.G., Iwamoto W., Rosas V.H., Vautier-Giongo C., Rettori C., Rettori D., Rettori C., Rettori D., Universidade Estadual de campinas, BR

Amine/organic acid caped Au-nanoparticles (Au-NPs) were prepared by reducing gold tetrachloroaurate (HAuCl4.3H2O) and rare-earth (RE)-oxides (RE = Er and Y and monodisperse samples of caped Au-NPs of ~10 nm in diameter were obtained. The magnetization [...]

Natural Gas in Syngas Conversion Over Nanosize Catalysts

Neiva L.S., Simões A.N., Oliveira J.B.L., Andrade H.M.C., Gama L., Federal University of Campina Grande, BR

This work has as aim the development of Ni catalysts supported in α-Al2O3/ZnO, Al2O3/Fe2O3 and Al2O3/ZrO2 to be applied in to catalytic reaction of the steam reforming of the methane. The Al2O3/ZnO, Al2O3/Fe2O3 and Al2O3/ZrO2 [...]

Polymer-based delivery vehicle for cisplatin

Vieira D.B., Menck C.F.M., Carmona-Ribeiro A.M., University of Sao Paulo, BR

Cisplatin (CisPt) is one of the most widely used agents to treat a variety of tumors, but dose-limiting toxicities or intrinsic and acquired resistance limit its application. We report a unique strategy to deliver cisplatin [...]

Nanoskin Bacterial cellulose structured- Towards the development of regenerative medicine

Olyveira G.M., Costa L.M.M., Basmaji P., UFABC, BR

Bacterial cellulose (BC) has established to be a remarkably versatile biomaterial and can be used in wide variety of applied scientific endeavors, especially for medical devices. In fact, biomedical devices recently have gained a significant [...]

Synthesis and characterization of new nanoparticles formed by milk whey proteins submitted to a thermal gelation process

Lopes J.R., Coimbra J.S.R., Teixeira A.V.N.C., De Oliveira E.B., Federal University of Viçosa, BR

In this work, nanostructures formed by the two whey proteins (alpha-lactoalbumin and beta-lactoglobulin) were synthesized througha thermal gelation process. The obtained proteic nanoparticles were characterized by using dynamic light scattering, transmission electron microscopy and atomic [...]

Nanoskin for Medical Applications

Basmaji P., Innovatecs, BR

The present paper describes NANOSKIN production for medical applications. Nanoskin is produced from the bionanotechnology process. Nanoskin is a highly hydrated pellicle made up of a random assembly of ribbon shaped fibers less than 100 [...]