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Two new protein conjugates were prepared and studied to develop and compare two (direct and indirect) competitive enzyme-linked immunosorbent assay (ELISA) formats for the determination of cortisol… (More)
A novel MB-SWNT-sol-gel nanocomposite material was prepared by the sol-gel process incorporating a redox mediator and carbon nanotubes. The electrocatalytic properties of the nanomaterial based… (More)
Abstract CNT-nickel–cobalt oxide/Nafion composites were prepared by combining the nickel–cobalt oxide powder with CNT directly into the Nafion solution used as a binder and deposited on… (More)
This paper presents preliminary results in the development of a method for rapid real-time monitoring of Ni(II) in mine water. A simple electrochemical approach using a differential pulse voltammetry… (More)
Industrial water contains a number of contaminants, such as organic pollutants and heavy metals, which can significantly affect the quality of soil, ground and environmental waters. We have… (More)
Cortisol is a steroidal hormone and an important stress marker. Free serum cortisol concentration has been identified to correlate well with free salivary cortisol. In this present work an… (More)
Abstract Electrochemical impedance spectroscopy was compared to square wave voltammetry for monitoring the reaction between alkaline phosphatase and its substrates.
Abstract A micro packed-bed reactor (µPBR) based on two-parallel-plates configuration with immobilized Candida antarctica lipase B in the form of porous particles (Novozym® 435) was theoretically and… (More)
The limited availability of metabolite-specific sensors for continuous sampling and monitoring is one of the main bottlenecks contributing to failures in bioprocess development. Furthermore, only a… (More)
The complexation of Ni(II) with dimethylglyoxime (DMG) entrapped within a Nafion membrane and a DMG–sol–gel matrix was studied and compared for different solutions. First and pseudo-second order… (More)