All-solid-state hydrogen sensing microelectrodes based on novel PPy[3,3′-Co(1,2-C2B9H11)2] as a solid internal contact

Zine, Nadia; Bausells, Joan; Teixidor, Francesç; Viñas, Clara; Masalles, C.; Samitier, J.; Errachid, Abdelhamid

doi:10.1016/j.msec.2005.10.073

Cited by 32 publications

(19 citation statements)

References 37 publications

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“…Additional studies on the performance of the sensors such as ion interferences and response time analysis were also done. As can be appreciated in the kinetic response in the Figure 7 insets, the response time of pH and nitrate sensor are 18 s and 40 s, respectively, fitting to other reported results of all-solid-state pH sensors; between 8 s [17] and 45 s [18]. Spikes of the inset correspond to the change of the vials containing different concentration of ions.…”

Section: Resultssupporting

confidence: 79%

Simple and Fast Method for Fabrication of Endoscopic Implantable Sensor Arrays

Tahirbegi

Alvira

Mir

et al. 2014

Sensors

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Here we have developed a simple method for the fabrication of disposable implantable all-solid-state ion-selective electrodes (ISE) in an array format without using complex fabrication equipment or clean room facilities. The electrodes were designed in a needle shape instead of planar electrodes for a full contact with the tissue. The needle-shape platform comprises 12 metallic pins which were functionalized with conductive inks and ISE membranes. The modified microelectrodes were characterized with cyclic voltammetry, scanning electron microscope (SEM), and optical interferometry. The surface area and roughness factor of each microelectrode were determined and reproducible values were obtained for all the microelectrodes on the array. In this work, the microelectrodes were modified with membranes for the detection of pH and nitrate ions to prove the reliability of the fabricated sensor array platform adapted to an endoscope.

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Section: Resultssupporting

confidence: 79%

Simple and Fast Method for Fabrication of Endoscopic Implantable Sensor Arrays

Tahirbegi

Alvira

Mir

et al. 2014

Sensors

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“…However, there were notable problems associated with the drift and overshoot of the standard potential, which have been mainly attributed to the lack of a thermodynamically welldefined electrochemical interface between the membrane and solid contact. To overcome these problems, adding an appropriate redox-active component in the membrane, such as a lipophilic silver complex [5], or use of conductive polymers as a contact between the solid support and membrane [6][7][8][9][10] was suggested.…”

Section: Introductionmentioning

confidence: 99%

Solid-contact Cu(II) ion-selective electrode based on 1,2-di-(o-salicylaldiminophenylthio)ethane

Brinić

Buzuk

Bralić

et al. 2011

J Solid State Electrochem

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The development of Cu(II) solid-contact ionselective electrodes, based on 1,2-di-(o-salicylaldiminophenylthio)ethane as a neutral carrier, is presented. For the electrodes construction, unmodified carbon ink (type 1 electrode) and polymer membrane-modified carbon ink (type 2 electrode) were used as solid support and transducer layer. Also, carbon ink composite polymer membrane electrode (type 3 electrode) was prepared. The analytical performance of the electrodes was evaluated with potentiometry, while bulk and interfacial electrode features were provided with electrochemical impedance spectroscopy. It is shown that modification of carbon ink with polymer membrane cocktail decreases the bulk contact resistance of the transducer layer and polymer membrane, thus enhancing the analytical performance of the electrode in terms of sensitivity, linear range, and stability of potential. The optimized electrodes of types 2 and 3 exhibit a wide linear range with detection limits of 1.8×10 −6 and 1.6×10 −6 M, respectively. They are suitable for determination of Cu 2+ in analytical measurements by direct potentiometry and in potentiometric titrations, within pH between 2.3 and 6.5. The electrodes are selective for Cu 2+ over a large number of tested transition and heavy metal ions.

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“…Some of them might be a film coated on solid substrate, like ruthenium oxide thin film deposited on silica wafer by Liao and Chou. 3 Other might be a Pt-coated planar hydrogen sensing microelectrode like those that were prepared by Zine et al 4 They were based on conductive polymer, polypyrrole (PPy), doped with cobaltabis(dicarbollide) ions.…”

Section: Introductionmentioning

confidence: 99%

“…Liu et al 5 incorporated derivatives of calix [4]-aza-crown in polymeric ion selective electrodes for pH sensing. Demirel et al 6 used p-tert-butylcalix [4]arene-oxacrown-4 as an ionophore for hydrogen ion-selective poly(vinyl chloride) (PVC) electrode.…”

Section: Introductionmentioning

confidence: 99%

Blank Membranes versus Ionophore-based Membranes for the Selective Determination of H+

Zаrеh

2009

ANAL. SCI.

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A pH electrode for the selective determination of H + was introduced. Both phosphorated calix [6]arene and a N,N′-bisethoxycarbonyl-1,10-diaza-4,7,13,16-tetraoxacyclo-octadecane (DZCE) were used as new H + -ionophores. The calibration graphs of the obtained electrodes exhibits satisfactory Nernstian slopes. The electrodes were compared to blank membranes (without any ionophoric substances) for the first time. Selectivity coefficients of the studied electrodes towards several inorganic cations were calculated. The relative selectivity coefficient (RSC) was applied for evaluating the selectivity properties of H + -electrode using a mathematical equation. The electrodes were applied for the determination of different inorganic and organic acids.

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All-solid-state hydrogen sensing microelectrodes based on novel PPy[3,3′-Co(1,2-C2B9H11)2] as a solid internal contact

Cited by 32 publications

References 37 publications

Simple and Fast Method for Fabrication of Endoscopic Implantable Sensor Arrays

Simple and Fast Method for Fabrication of Endoscopic Implantable Sensor Arrays

Solid-contact Cu(II) ion-selective electrode based on 1,2-di-(o-salicylaldiminophenylthio)ethane

Blank Membranes versus Ionophore-based Membranes for the Selective Determination of H+

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