electrochemical biosensor Articles

  • Electrochemical biosensors for environmental monitoring

    The challenge for the monitoring of environmental hazards such as pollutants, herbicides, pesticides and toxins caused by expanding industrialisation and application of new intensive agricultural technologies is to develop efficient tools that offer precision, sensitivity, and speed and ease of operation in situ and avoid consequently risks for both human and environmental health. In this ...


    By Inderscience Publishers

  • Electrochemical synthesis of polypyrrole for biosensor application

    Polypyrrole nanowires were electrochemically synthesised on platinum electrode at ambient temperature. The potentiostatic potential was set at 0.75 V in the presence of gelatin as soft mould. The whole process only took few hundred seconds. The morphologies, chemical composition and conductivity of nanowires were evaluated by means of Scanning Electron Microscopy (SEM), Fourier Transform Infrared ...


    By Inderscience Publishers

  • Electrochemical biosensor for glucose detection using zinc oxide nanotetrapods

    Wurtzite structural zinc oxide (ZnO) nanotetrapods were synthesised by a thermal evaporation method. These ZnO nanotetrapods were used for the construction of an electrochemical biosensor for detecting glucose. In the biosensor, the ZnO nanotetrapods acted as supporting materials for glucose oxidase (GOx) enzyme loading because of the large surface area to ...


    By Inderscience Publishers

  • An electrochemical DNA biosensor for trace amounts of mercury ion quantification

    In this work we report the development of an electrochemical DNA biosensor with high sensitivity for mercury ion detection. A new matrix based on gold nanoparticles (AuNPs)-glutathione (GSH)/cysteine was investigated. The interaction between DNA oligonucleotides and Hg2+ ions followed by the formation of Thymine–Hg2+–Thymine (T–Hg2+–T) structures was quantified using different ...


    By IWA Publishing

  • Glucose biosensor based on platinum nanowires: a clinical study

    We describe the process of modification of the platinum (Pt) nanowire surface and subsequent immobilisation of enzyme glucose oxidase (GOx) on Pt nanowires (PtNWs) for direct glucose measurement. A cyclic voltammetry technique was used to measure electrochemical oxidation between GOx and glucose. PtNW arrays were first fabricated and then functionalised with cysteamine, which in turn acted as a ...


    By Inderscience Publishers

  • Affinity–based biosensors for heavy metal detection

    In recent years, there has been a pressing need for fast and reliable methods for environmental monitoring. Among the various pollutants, the heavy metals are some of the most harmful because these substances are non–biodegradable and retained by the ecological system. Conventional analytical techniques for heavy metals imply high cost, trained personnel and the repute that they are mostly ...


    By Inderscience Publishers

  • Enzymatic inhibition-based electrochemical biosystems: general aspects and applications for the monitoring of aquatic ecosystems

    The use of biosensor-based analytical methods, and specifically of the techniques based on 'inhibition' enzymatic amperometric electrodes, is gaining growing interest in the field of toxicity tests in environmental and food matrices. This contribution proposes the use of inhibition-based enzymatic bioelectrodes for the rapid determination of pesticides, herbicides and toxins in aquatic ...


    By Inderscience Publishers

  • Nanomaterials applied in medicine, cultural heritage and chemical sensor technology

    Herein, we report three different analytical applications of multi–layers of oxidised graphene nanoribbons (GNOs). In the first section of this paper, the most significant results concern the effect of GNOs on the proliferation of NIH3T3 murine fibroblasts. Results show that GNOs represent the most biocompatible nanomaterials (compared with other ones, such as carbon black, single–wall carbon ...


    By Inderscience Publishers

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