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Mostrando ítems 31-40 de 66
Gentle and fast atomic force microscopy with a piezoelectric scanning probe for nanorobotics applications
(IOP Publishing, 2013-01)
Se presenta una nueva plataforma de microscopio de fuerza atómica (AFM) de nanomanipulación de doble punta que opera en condiciones ambientales. El sistema está equipado con una sonda de escaneo de detección automática ...
Piezoelectric biosensors for real-time monitoring of hybridization and detection of hepatitis C virus
(Elsevier B.V., 2004-05-01)
The piezoelectric quartz crystal resonators modified with oligonucleotide probes were used for detection of hepatitis C virus (HCV) in serum. The gold electrodes on either rough or smooth surface crystals were modified ...
Caracterização de ametistas naturais
(Universidade Federal de Minas GeraisUFMG, 2008-02-26)
This research intends to investigate the formation of color in samples of natural amethyst from different origins after submitting them to gamma irradiation, as well to develop an identification method of uncolored crystals ...
Wired-enzyme core-shell Au nanoparticle biosensor
(American Chemical Society, 2008-09)
We report a fully integrated core−shell nanoparticle system responsive to glucose. The system is comprised of self-assembled glucose oxidase and an osmium molecular wire on core−shell Au nanoparticles. Characterization of ...
Probing the functionalization of gold surfaces and protein adsorption by PM-IRRAS
(WILEY-BLACKWELL, 2011)
The control of morphology and coating of metal surfaces is essential for a number of organic electronic devices including photovoltaic cells and sensors. In this study, we monitor the functionalization of gold surfaces ...
Physico-chemical characterization of ferrocenyl-modified hyperbranched poly(ethylenimine) self-assembled multilayers
(Elsevier, 2014)
In this work, we characterize the electrochemical behavior of a new ferrocenyl-modified, hyperbranched
poly(ethylenimine) (HBPei-Fc). The effects of the ionic strength, pH and the nature of the anion of the
supporting ...
Mineral magnetite as precursor in the synthesis of multi-walled carbon nanotubes and their capabilities of hydrogen adsorption
(Elsevier, 2015)
Mineral magnetite was used as metallic oxide catalysts in the synthesis of Multi-Walled Carbon Nanotubes (MWCNTs) by Aerosol Assisted Chemical Vapor Deposition (AACVD). The structural and morphological information of MWCNTs ...
Inmunosensor piezoeléctrico para la detección del metabolito 3,5,6-tricloro-2-piridinol del plaguicida clorpirifos
(Fondo Editorial EIA, 2013-11-15)
Detection and monitoring of the organophosphate insecticide chlorpyrifos are required to comply with the limits allowed under different laws of regulatory agencies. Here we report on a piezoelectric immunosensor which can ...