A5022103754- Luminescence Properties of Advanced Materials
- Mesoporous Materials and Catalysis
- Lanthanide and Transition Metal Complexes
- Glass properties and applications
- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Pigment Synthesis and Properties
- Advanced Photocatalysis Techniques
- Catalysis and Oxidation Reactions
- Polyoxometalates: Synthesis and Applications
- Silicone and Siloxane Chemistry
- Chemistry and Chemical Engineering
- Catalytic Processes in Materials Science
- Dental Implant Techniques and Outcomes
- Perovskite Materials and Applications
- Bone Tissue Engineering Materials
- TiO2 Photocatalysis and Solar Cells
- Magnetism in coordination complexes
- Solid State Laser Technologies
- Graphene and Nanomaterials Applications
- biodegradable polymer synthesis and properties
- Microwave Dielectric Ceramics Synthesis
- Layered Double Hydroxides Synthesis and Applications
- Nanoparticles: synthesis and applications
- Hydrogen embrittlement and corrosion behaviors in metals
Universidade de Franca
2015-2024
Universidade Estadual Paulista (Unesp)
2008-2024
Universidade Federal do Piauí
2018
University of Minho
2014
Pontifical Catholic University of Rio de Janeiro
2005-2006
In this study, we used the non-hydrolytic sol–gel methodology to synthesize gadolinium vanadate particles doped with different Er3+ and Yb3+ molar ratios. chlorides vanadium alkoxide were as precursors during synthesis. The resulting powders treated at 800 °C characterized by x-ray diffraction photoluminescence. diffractogram displayed peaks attributed matrix. Photoluminescence helped evaluate Fluorescence Intensity Ratio (FIR), which is important for understanding nanothermometer property....
INTRODUÇÃO: A valvuloplastia pulmonar percutânea é um procedimento minimamente invasivo usado no tratamento da estenose pulmonar, que obstrui a válvula e dificulta o fluxo sanguíneo para os pulmões. Utilizando balão inserido por cateter, técnica alivia estreitada restabelece sanguíneo, sendo uma alternativa eficaz à cirurgia aberta, especialmente em casos de congênita ou adquirida. OBJETIVOS: O objetivo do presente trabalho foi realizar levantamento epidemiológico acerca dos Brasil, período...
In this work we have synthesized and characterized new hybrid nanoplatforms for luminescent biolabeling based on the concept of Eu 3+ complexes encapsulation in mesoporous silica nanoparticles ( ≈ 100 nm). been selected basis their capability to be excited at 365 nm which is a currently available wavelength, routine epifluorescence microscope. For encapsulation, two different routes used: first route consists grafting transition metal complex into wall surface. The second way deals with...
<italic>Bombyx mori</italic> silk fibroin offers unlimited opportunities for functionalization, processing, and biological integration.
Ordered mesoporous highly luminescent SiO2 particles have been synthesized by spray pyrolysis from solutions containing tetraethylorthosilicate (TEOS) and either cetyltrimethylammonium bromide (CTAB) or the block copolymer Pluronic F-68 as structure-directing agents. Rhodamine B (RhB)-containing samples were prepared using a simple wet impregnation method followed growing of second silica shell in order to prevent leaching dye. The obtained materials characterized scanning electron...
The unique properties of macroporous, mesoporous, and microporous systems, including their ability to accommodate molecules different sizes inside pores act as drug delivery have been the object extensive studies. In this work, mesoporous silica with hexagonal structure was obtained by template synthesis via sol-gel process. resulting material used support anti-inflammatory agent indomethacin. alkaline route prepare silica; cetyltrimethylammonium bromide employed porogenic agent. particles...
Ordered mesoporous, highly luminescent SiO2 particles have been synthesized by spray pyrolysis from solutions containing tetraethylorthosilicate (TEOS), Eu(NO3)3.6H2O, and cetyltrimethylammonium bromide (CTAB) as structure-directing agents. The 1,10-phenantroline (Phen) molecules were coordinated in a post-synthesis step simple wet impregnation method. In addition, other matrices also prepared the encapsulation of europium complex Eu(fod)3 (where fod =...
This paper reports the synthesis and characterization of Cr 3+ -doped alumina by sol-gel non-hydrolytic methodology.The resulting sample was treated at different temperatures.X-ray diffraction revealed that ruby phase emerged in 1100 o C, which later confirmed absorption bands correspondent to ions allowed transitions 4 A 2 → T 1 , forbidden E, observed diffuse reflectance UV-Vis.The luminescence spectroscopy showed intensity band 694 nm red region, characterized ion.The peaks 702 705...