BR – Page 4 – TechConnect Briefs

Drug delivery system based on inorganic layered materials

Cunha V.R.R., Petersen P.A.D., Petrilli H.M., Constantino V.R.L., University of Sao Paulo, BR

Layered Double Hydroxides (LDHs) are well known inorganic carriers which have been explored during the development of new materials for medicinal and pharmacological applications. The solubility and chemical stability of guest species can be increased [...]

Redox catalysts based on Au and Pd/PdO bimetallic nanoparticles confined in mesoporous silica SBA-15

Dias B.F., Teixeira-Neto A.A., Teixeira-Neto E., Teixeira-Neto A.A., Teixeira-Neto E., Universidade Federal do ABC, BR

Since the catalytic activity of nanoscale gold was discovered many studies in this subject have been done. A very interesting system, based on Au and Pd bimetallic nanoparticles (NPs), has emerged from those studies, and [...]

New route for growing of ZnO seed layer using SILAR method

Galego E., Serna M.M., Ramanathan L.V., IPEN-CNEN/SP, BR

In this work a new route was applied, it was utilized successively ionic layer adsorption reaction (SILAR) method to growth of the ZnO seed layer with low mis-orientation.

New route for growing of ZnO seed layer using SILAR method

Galego E., Serna M.M., Ramanathan L.V., IPEN-CNEN/SP, BR

In this work a new route was applied, it was utilized successively ionic layer adsorption reaction (SILAR) method to growth of the ZnO seed layer with low mis-orientation.

Thermal Performance of Silver/Water Nanofluids in Heat Exchangers

Bandarra Filho E.P., Oliveira G.A., Federal University of Uberlandia, BR

Nanofluids are fluid formed by dispersing solid particles of size ranging 1-100 nm (nanoparticles) in a given base fluid such as water or oil, for example. Regarding to the thermal potential, the researches on nanofluids [...]

Nanoelectronic SET-based core for Network-on-chip architectures

Pes B.S., Guimaraes J.G., da Costa J.C., University of Brasilia - UnB, BR

Nanoelectronics is a very promising step the world of electronics is taking. It is proved to be more efficient than the microelectronic approaches currently in use, mainly in terms of area and energy management. A [...]

Redox catalysts based on Au and Pd/PdO bimetallic nanoparticles confined in mesoporous silica SBA-15

Dias B.F., Teixeira-Neto A.A., Teixeira-Neto E., Teixeira-Neto A.A., Teixeira-Neto E., Universidade Federal do ABC, BR

Since the catalytic activity of nanoscale gold was discovered many studies in this subject have been done. A very interesting system, based on Au and Pd bimetallic nanoparticles (NPs), has emerged from those studies, and [...]

Enhancement of Ferromagnetism in Amine/Organic Acid Capped Au-Nanoparticles by Yttrium-Oxide Inclusion

Lesseux G.G., Iwamoto W., Rosas V.H., Vautier-Giongo C., Rettori C., Rettori D., Urbano R.R., Rettori C., Rettori D., Universidade Estadual de Campinas (UNICAMP), BR

In this work we report on the enhancement of the ferromagnetism of amine/organic acid capped Au nanoparticles (AuNPs) by incorporation of yttrium-oxide (Y2O3). The magnetization measurements displayed a ferromagnetic (FM) loop with a coercive field [...]

Magnetic properties of metallic AuPdO nanoparticles confined in ordered mesoporous silica SBA-15 channels

Iwamoto W., Lesseux G.G., Dias B.F., Teixeira-Neto A.A., Teixeira-Neto E., Teixeira-Neto A.A., Teixeira-Neto E., Urbano R.R., Rettori C., Universidade Estadual de Campinas (UNICAMP), BR

Materials consisting of metallic AuPdO nanoparticles (AuPdO-NPs) supported on mesoporous silica SBA-15 channels (AuPdO-NPs/SBA15, Figure 1) have become composite compounds of great interest due to their catalytic applications [1]. In this work we report on [...]

Photon up-conversion and magnetic properties of rare earths-doped NaYF4 nanoparticles

García-Flores A.F., Lesseux G.G., Iwamoto W., Urbano R.R., Rettori C., Universidade Federal do ABC, BR

In this work we have investigated Yb/Er and Yb/Tm co-doped NaYF4 nanoparticles (NPs) as well as Yb and Er single doped ones by means of luminescence, high resolution transmission electron microscopy (HRTEM), X-ray powder diffraction [...]