Organically Modified Silica
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Performance eletrocatalítica frente a nitrito de um filme híbrido de fosfomolibdato e sílica organomodificada
RESUMO Materiais híbridos orgânico-inorgânicos nanoestruturados são produzidos com a finalidade de desenvolver e/ou aprimorar uma propriedade de interesse. Uma forma de obtenção de materiais híbridos é através da imobilização de um componente inorgânico em uma rede de sílica organicamente modificada (ormosil). Neste trabalho, um polioxometalato
Matéria (Rio J.). Publicado em: 25/11/2019
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2. Emprego de sílica gel organicamente modificada e impressa ionicamente para pré-concentração seletiva on-line de íons cobre
The present work purposes the preparation of a silica gel sorbent organically modified with 2-aminoethyl-3-aminobutylmethyldimethoxysilane (AAMDMS) and imprinted with Cu2+ ions by means surface imprinting technique and its use for selective on-line sorbent preconcentration of Cu2+ ions with further UV-VIS spectrophotometric determination by flow injection an
Química Nova. Publicado em: 2010
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3. New Pb2+ carbon paste electrode based on organically modified silicate and its square wave anodic stripping voltammetric response for pretreated gasoline samples
Este trabalho descreve um procedimento analítico para a determinação de íons chumbo (II) por voltametria de redissolução anódica de onda quadrada em amostra de gasolina pré-tratada e a avaliação de um eletrodo de pasta de carbono modificada com um material híbrido inorgânico-orgânico (aminopropil preso a uma rede de sílica (APSil) obtido via a
Journal of the Brazilian Chemical Society. Publicado em: 2010
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4. Preparation of organically modified silica from rice husk with capacity to sorption of metallic ions. / Preparação de sílica organofuncionalizada a partir de casca de arroz, com capacidade adsorvente de íons metálicos.
This thesis presents the obtainment of silica xerogel by rice husk charcoal and its surface modification using an organic ligand type Schiff-base. The purpose of this agro-industrial residue utilization is the production of an adsorbent capable to remove heavy metals present in contaminated waters. The silica contained in the biomass was obtained by alkaline
Publicado em: 2008
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5. Optical tracking of organically modified silica nanoparticles as DNA carriers: A nonviral, nanomedicine approach for gene delivery
This article reports a multidisciplinary approach to produce fluorescently labeled organically modified silica nanoparticles as a nonviral vector for gene delivery and biophotonics methods to optically monitor intracellular trafficking and gene transfection. Highly monodispersed, stable aqueous suspensions of organically modified silica nanoparticles, encaps
National Academy of Sciences.
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6. Silicatein α: Cathepsin L-like protein in sponge biosilica
Earth’s biota produces vast quantities of polymerized silica at ambient temperatures and pressures by mechanisms that are not understood. Silica spicules constitute 75% of the dry weight of the sponge Tethya aurantia, making this organism uniquely tractable for analyses of the proteins intimately associated with the biosilica. Each spicule contains a centr
The National Academy of Sciences.