Tag Archives: electrochemistry

Electrochemical sensing based on carbon nanotubes

Abstract The singular chemical structure and the size of carbon nanotubes (CNTs) provide their extraordinary properties. Many researchers have used the electronic characteristics of CNTs to develop electrochemical analytical methods and sensing devices with improved characteristics. In this overview, we discuss the most significant innovations in electrochemical sensing based on CNTs, as reported in the [...]

Smart electrochemical biosensors: From advanced materials to ultrasensitive devices

Abstract Recent reports…showed unprecedented sensitivities for biomolecular recognition using enhanced electronic amplification provided by new classes of electrode materials (e.g. carbon nanotubes, metal nanoparticles, and quantum dots). Biosensor technology is one area where recent advances in nanomaterials are pushing the technological limits of electrochemical sensitivities, thus allowing for the development of new sensor chemistries and [...]

Electrochemical sensor for the simultaneous determination of caffeine and aspirin in human urine samples

Abstract A simple and sensitive electrochemical method has been developed for the determination of acetyl salicylic acid (ASA) and caffeine (CAF) using edge plane pyrolytic graphite electrode (EPPGE). At pH 7.2, two well defined peaks with peak potential (Ep) of _1225 mV and _1335 mV were appeared for the oxidation of ASA and CAF, respectively. [...]

Immobilization of biomolecules on nanostructured films for biosensing

Abstract This paper brings an overview of the use of nanostructured films in several types of biosensors, with emphasis on the advantageous control of molecular architecture…Important contributions in the literature in biosensors based on electrochemical and optical measurements are highlighted. Furthermore, a discussion is presented on how the concept of electronic tongues has been extended [...]

Critical Elements of Biological Sensor Technology for Deployment in an Environmental Network System

Abstract A key factor affected for the ability to protect against biological and chemical threats is the deployment of an automated sensor monitoring system for use in government and commercial applications. Currently available biosensors have several shortcomings that must be overcome: 1) they are slow to recognize the presence of a pathogen; 2) they are [...]

Electrochemical biosensors: recommended definitions and classification

Abstract …An electrochemical biosensor is a self-contained integrated device, which is capable of providing specific quantitative or semi-quantitative analytical information using a biological recognition element (biochemical receptor) which is retained in direct spatial contact with an electrochemical transduction element. Because of their ability to be repeatedly calibrated, we recommend that a biosensor should be clearly [...]