Potentiometric Ion Sensors Based on Conducting Polymers

Abstract

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Urea Biosensor Based on Conducting Polymer Transducers

“…Potentiometric measurements are based on monitoring potential values under a zero current flow regime (under equilibrium), in order to determine the analytical concentration of desired components after catalytic reaction between biomolecule and analyte in the sample solution [43,[70][71][72]. Source of potential may be a physical phenomena not involving explicit redox reactions but having non-zero free energy initial conditions because of enzymatic reaction and ionic gradient.…”

Electrochemical techniques and sensors for ocean research

“…Solid electrodes have been modified with various materials to provide a specific potentiometric response, e.g. with conducting polymers (Bobacka et al, 2003) or with PVC membranes loaded with a carbonate selective host for the determination of oceanic carbon dioxide (Choi et al, 2002). Novel electrode modifications providing ion selectivity are continuously being reported (Bakker and Telting-Diaz, 2002;Bakker, 2004;Bakker and Qin, 2006;Privett et al, 2008).…”

Dodecyl benzene sulfonic acid (DBSA) doped polypyrrole (PPy) films: synthesis, structural, morphological, gas sensing and impedance study

“…NO 2 is a toxic air pollutant not only affects the respiratory system of living organisms but also creates environmental issues [10]. Every year large quantity of NO 2 have been released in the atmosphere by various industrial and household activities such as chemical factories, combustion of fossil fuel, power plants, exhaust gases of automobiles, domestic heat burners and food processing plants [11].…”

“…Conducting polymers have several advantages over metal oxides like low ionization potential, low energy optical transitions, high conductivity, room temperature operation and high electron affinity [1,2]. The conducting polymers are practically used in the field of sensors [3], energy storage [4], electrocatalysis [5], electrorheology [6], ammonia monitoring [7] and biomedicine [8] or in the conversion to nitrogen-containing carbon materials [9].…”