Buscar
Mostrando ítems 31-40 de 683
Development of a disposable amperometric biosensor for salicylate based on a plastic electrochemical microcell
(Elsevier Advanced TechnologyOxfordInglaterra, 2010)
Decoration of reduced graphene oxide with rhodium nanoparticles for the design of a sensitive electrochemical enzyme biosensor for 17 beta-estradiol
(Elsevier B.V., 2017-03-15)
A novel nanocomposite material consisting of reduced graphene oxide/Rh nanoparticles was prepared by a one-pot reaction process. The strategy involved the simultaneous reduction of RhCl3 and graphene oxide with NaBH4 and ...
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 ...
Optimization of an amperometric biosensor for the detection of hepatitis C virus using fractional factorial designs
(Soc Brasileira Quimica, 2008-01-01)
Fractional factorial design and factorial with center point design were applied to the development of an amperometric biosensor for the detection of the hepatitis C virus. Biomolecules were immobilized by adsorption on ...
Comparison of gold CD-R types as electrochemical device and as platform for biosensors
(2016-04-01)
The construction of gold electrodes using 3 kinds of gold recordable compact discs (CDtrodes) and characterization by electrochemical and spectroscopic techniques are herein reported. Following a surface pretreatment in ...
Glucose biosensor based on multisegment nanowires exhibiting reversible magnetic control
(Elsevier B.V., 2014-11-01)
We describe the amperometric detection of glucose using oriented nanowires with magnetic switching of the bioelectrochemical process. The fabrication process of the nanowires was prepared through controlled nucleation and ...
Urea amperometric biosensors based on a multifunctional bipolymeric layer: Comparing enzyme immobilization methods
(ELSEVIER SCIENCE SA, 2009)
This paper outlines the results obtained with biosensors designed for urea amperometric detection. The incorporation of urease into a bipolymeric substrate consisting of poly(pyrrole) and poly(5-amino-1-naphthol) was ...
Electrochemical detection of carbamate pesticides in fruit and vegetables with a biosensor based on acetylcholinesterase immobilised on a composite of polyaniline-carbon nanotubes
(ELSEVIER SCI LTDOXFORD, 2012)
A sensitive electrochemical acetylcholinesterase (AChE) biosensor was successfully developed on polyaniline (PANI) and multi-walled carbon nanotubes (MWCNTs) core-shell modified glassy carbon electrode (GC), and used to ...
Development of biosensors based on hexacyanoferrates
(Elsevier B.V., 2000-08-16)
Ferric and copper hexacyanoferrates (PB and CuHCF, respectively) were electrodeposited on glassy carbon electrodes providing a suitable catalytic surface for the amperometric detection of hydrogen peroxide. Additionally ...
A new amperometric biosensor for salicylate based on salicylate hydroxylase immobilized on polipyrrole film doped with hexacyanoferrate
(Elsevier B.V., 1997-07-30)
An amperometric biosensor for salicylate detection was developed by immobilizing salicylate hydroxylase via glutaraldehyde onto a polypyrrole film doped with hexacyanoferrate, supported on a glassy carbon electrode surface. ...