FE-SEM micrographs of β-Ag2WO4, showing growth and reabsorption of Ag NPs, (a) before, and (b) after electron irradiation for 100 s. The Ag NPs ranged in sizefrom 12 to 16 nm. In (a) non Ag particles are indicated with X, and in (b) dashed line circles are Ag NPs with excessive growth (Scale bar is 200 nm).
Writers: Roman Alvarez Roca and Pablo S. Lemos and Juan Andrés and Elson Longo
Keywords: nanoparticles; metastable; microcrystals; electron irradiation
Abstract: In the present work, an easy precipitation method without presence of surfactants is applied to the synthesis of the hexagonal phase of metastable β-Ag2WO4 microcrystals at room temperature. In addition, we report for first time the in situ formation, growth, and subsequent reabsorption of Ag nanoparticles on the surface of this metastable phase, which was induced by electron beam irradiation under high vacuum.
O CDMF é um dos Centros de Pesquisa, Inovação e Difusão (CEPID) apoiados pela FAPESP. O Centro também recebe investimento do CNPq, a partir do Instituto Nacional de Ciência e Tecnologia dos Materiais em Nanotecnologia (INCTMN).
Synthesis of Main-Chain Poly(fullerene)s from a Sterically Controlled Azomethine Ylide Cycloaddition Polymerization Abstract: Fullerene is used as a monomer in this simple method to prepare soluble, well-defined polymers. The sterically controlled azomethine ylide cycloaddition polymerization of […]
Graphenic Aerogels Decorated with Ag Nanoparticles as 3D SERS Substrates for Biosensing Abstract: A versatile and efficient surface‐enhanced Raman scattering (SERS) substrate based on a hybrid aerogel composed of reduced graphene oxide (rGO) decorated with […]
Writers: ES Bronze-Uhle, BC Costa, VF Ximenes, PN Lisboa-Filho Keywords: albumin nanoparticles, drug delivery, salicylic acid entrapped, nano-carriers Abstract: Bovine serum albumin (BSA) is highly water soluble and binds drugs or inorganic substances noncovalently for their effective delivery to various affected […]
