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APTES-Modified RE2O3:Eu3+ Luminescent Beads: Structure and Properties
(AMER CHEMICAL SOCWASHINGTON, 2012)
Europium-doped lanthanide oxide RE2O3:Eu3+ (RE = Y or Gd) luminescent beads, with a spherical shape and a diameter of 150 +/- 15 nm, have been modified by reaction with 3-aminopropyltriethoxysilane (APTES), in order to ...
Magnetic Fe3O4atSiO2-Pt and Fe3O4atSiO2-PtatSiO2 structures for HDN of indole
(Multidisciplinary Digital Publishing Institute, 2019-12)
The effect of a second porous SiO2 shell in the activity and selectivity of the Fe3O4atSiO2-Pt catalyst in the hydrodenitrogenation of indole is reported. The double Fe3O4atSiO2-PtatSiO2 structure was prepared by coating ...
Covalent attachment of 3,4,9,10-perylenediimides onto the walls of mesoporous molecular sieves MCM-41 and SBA-15
(ELSEVIER SCIENCE BV, 2008)
This work describes the covalent grafting of 3,4,9,10-perylenediimides (PDI), which are fluorescent dyes with very interesting optical properties, onto the walls of mesoporous molecular sieves MCM-41 and SBA-15. The ...
Effect of the addition of functionalized TiO2 nanotubes and nanoparticles on properties of experimental resin composites
(Elsevier B.V., 2020-12-01)
Objective. To evaluate the influence of the addition of functionalized and non-functionalized TiO2 nanostructures on properties of a resin composite. Methods. TiO2 nanostructures were synthesized and functionalized, using ...
Obtenção de sensores plasmônicos baseados em nanopartículas de prata
(Universidade Tecnológica Federal do ParanáApucaranaBrasilLicenciatura em QuímicaUTFPR, 2017-11-22)
With the development of technology and nanoscience it has been observed a considerable rise in studies and usage of silver nanoparticles (AgNPs) in the construction of biosensors. AgNPs show interesting improvements related ...
Materiais híbridos nanoestruturados sintetizados a partir da funcionalização de esmectitas para imobilização de espécies inorgânicas e orgânicas
(Universidade Federal de Minas GeraisUFMG, 2007-05-30)
The present work was aimed at synthesizing nanostructured hybrid materials derived from the functionalization of smectite clays with ligands containing thiol (-SH) and amino (-NH2) groups for application in adsorption ...
Silica nanoparticles embedded with water insoluble phthalocyanines for the photoinactivation of microorganisms
(Elsevier Science, 2018-09)
Silica nanoparticles (SiNPs) embedded with Zn(II) 2,9,16,23-tetrakis(methoxy)phthalocyanine (SiNPZnPcOCH3), Zn(II) 2,9,16,23-tetrakis(4-pyridyloxy) phthalocyanine (SiNPZnPcOPy) and Zn(II) 2,9,16,23-tetrakis(t-butyl) ...
Síntese e caracterização de biopolímeros funcionalizados com APTES (3–aminopropiltrietoxisilano) para a adsorção de corante amarelo crepúsculo
(Universidade Federal de Santa MariaBrasilEngenharia QuímicaUFSMPrograma de Pós-Graduação em Engenharia QuímicaCentro de Tecnologia, 2019-08-05)
The biopolymers chitin (CTN) and chitosan (CTS) were functionalized with APTES (3–aminopropyltriethoxysilane) in order to enhance its adsorption potential for sunset yellow dye (SYD). The functionalization was evaluated ...