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The present application is based on the use of carbon nanotubes (CNTs) for biomolecular analysis using electrochemiluminescence (ECL) detection technique [1]-[9]. For this purpose we have grown self standing blocks of multi-wall CNTs (MWCNTs). The blocks were subsequently back-contacted and encapsulated into epoxy resin for their use as voltammetric electrodes. A ruthenium-complex solution has been...
Microbial fuel cells (MFCs) are bio-electrochemical transducers that convert chemical energy directly into electrical energy through catalytic reaction of microorganisms.In this study, the CNT/Au nanocomposites modified electrodes were initially prepared and then the cyclic voltammetry (CV) technique was used to study the electrochemical behavior of K3[Fe(CN)6] on the bare glassy carbon electrodes...
An electrochemical impedance method to detect concentrations of the local anesthetics Levobupivacaine was implemented and the concentration could be detected to 1 ppm. Electropolymerized pyrrole to polypyrrole (Ppy) and carbon nanotube (CNT) was fabricated on gold electrodes and used as sensors. Various concentrations of Levobupivacaine from 1 to 500 ppm were prepared in DI water as the test samples.
A disposable and magnetic nanoparticles composite membrane modified screen printed carbon electrodes (SPCEs) for rapid determination of chloramphenicol (CAP) in milk has been fabricated and characterized by scanning electron microscope (SEM) and voltammetry. The reagentless amperometric immunosensor was prepared by entrapping ferrocene (Fc) and carbon nanotubes (CNTs) into Nafion (Nf) to form a composite...
Multi-walled carbon nanotubes (MWNTs) were successfully manipulated by dielectrophoresis (DEP) to form electrical connection between interdigitated gold electrodes (IDEs) and were demonstrated to serve as gas sensor for NH3 detection. The MWNTs were suspended in ethanol and deposited on the IDEs under the effect of DEP. After the evaporation of ethanol, the MWNTs remained between the gaps of the IDEs...
Effect of thiol to the sensing characteristics of gas sensors based on carbon nanotubes(CNTs) were studied. Sensors were divided into three groups: pure CNTs coated on Au electrode; thiol-CNTs coated on Au electrode; pure CNTs coated on Au electrodes modified with alkanethiol self-assembled monolayers(SAMs). When exposed to formaldehyde of different concentration at room temperature, obvious differences...
Electrochemical sensing is a promising technique for various chemical and biochemical detection and quantification. Carbon nanotube (CNT) is a promising material for electrochemical electrodes due to its high reaction area and excellent electron transfer rate. In this work, CNT based electrode and low cost potentiostat are developed for a practical electrochemical sensing system. The developed electrochemical...
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