Silver and lead all-plastic sensors—polyaniline vs. poly(3,4-ethyledioxythiophene) solid contact

A solid-contact Pb2+-selective electrode using poly(2-methoxy-5-(2′-ethylhexyloxy)-p-phenylene vinylene) as ion-to-electron transducer

“…CPs represent a large family of synthetic metals, however, the commonly studied subjects of SC-ISEs were mostly confined to polypyrrole [13][14][15], polyaniline [16,17], polythiophene, and their derivatives [18][19][20]. From both the experimental and theoretical points of view, it is of great significance to provide new solid contact materials for fabricating SC-ISEs.…”

Improved potentiometric response of all-solid-state Pb2+-selective electrode

“…Although the coextraction process from the inner solution can be largely eliminated by the use of solid ion-to-electron transducers, transmembrane ion flux still occurs in all-solidstate ISEs similarly as observed for conventional inner solution electrodes [12][13][14]. As a result, the observed lower detection limit was not an intrinsic property of the electrodes but a consequence of the many parameters, such as the type of conducting polymer ion-to-electron transducer, the conditioning procedure [15][16][17], or the presence of interfering ions in the sample [18].…”

Properties and Customization of Sensor Materials for Biomedical Applications

“…While CPs have been extensively used as a solid contact material, it is important to note that the choice of the conducting polymer is imperative in the ISE's longevity as it will affect the stability over time and the LOD (114,129,(174)(175)(176)(177)(178)(179)(180)(181)(182)(183)(184)(185). In addition, the type of CP to be used as a solid contact can also depend on the ion analyte (186). Poly(3-octylthiophene) has been used as a solid contact due to its hydrophobicity as this improves membrane adhesion and limits water uptake (177,187).…”