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Keywords = metallocarboranes

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5 pages, 643 KiB  
Proceeding Paper
A Highly Sensitive Impedimetric Metamitron Microsensor Based on All-Solid-State Membrane Using a New Ion-Pair Complex, [3,3′-Co(1,2-closo-C2B9H11)2]−[C10H11ON4]+
by Zakaria Ayroud, Juan Gallardo-Gonzalez, Abdoullatif Baraket, Marie Hangouet, Albert Alcácer, Angelos Streklas, Joan Bausells, Abdelhamid Errachid and Nadia Zine
Proceedings 2018, 2(13), 1093; https://doi.org/10.3390/proceedings2131093 - 11 Dec 2018
Cited by 1 | Viewed by 2390
Abstract
An all-solid-state impedimetric microsensor based on impedimetric measurements for detecting the herbicide metamitron (MM) is reported in the present work. For this purpose, a novel metamitron ionophore has been prepared. It was based on the isolation of the metamitron monoprotonated form coupled to [...] Read more.
An all-solid-state impedimetric microsensor based on impedimetric measurements for detecting the herbicide metamitron (MM) is reported in the present work. For this purpose, a novel metamitron ionophore has been prepared. It was based on the isolation of the metamitron monoprotonated form coupled to the metallocarborane anion, cobalt bis (dicarbollide), ([3,3′-Co(1,2-closo-C2B9H11)2]−) as an ion-pair complex of the type [3,3′-Co(1,2-closo-C2B9H11)2]−[C10H11ON4]+. Once the ion-pair complex was synthetized, it was incorporated to a PVC-type membrane including o-Nitrophenyloctylether (o-NPOE) as plasticizer. The membrane was then drop-cast on top of polypyrrole-modified gold working microelectrodes. A quick response of 30 s has been provided by the microsensor in the range of metamitron concentrations between 10−8 M and 10−4 M with a limit of detection of 10−8 M. Furthermore, it was highly selective toward metamitron, when compared to some possible interfering compounds as imazapic and carbetamide. Full article
(This article belongs to the Proceedings of EUROSENSORS 2018)
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4 pages, 417 KiB  
Proceeding Paper
Solid State Gas Sensor Based on Polyaniline Doped with [3,3′-Co(1,2-C2B9H11)2]−1 for Detection of Acetone: Diagnostic to Heart Failure Disease
by Abhishek Sonu, Abdoullatif Baraket, Selim Boudjaoui, Juan Gallardo, Nadia Zine, Monique Sigaud, Marie Hangouet, Albert Alcácer, Angelos Streklas, Joan Bausells and Abdelhamid Errachid
Proceedings 2018, 2(13), 1086; https://doi.org/10.3390/proceedings2131086 - 3 Dec 2018
Cited by 1 | Viewed by 1941
Abstract
Acetone in human breath has been regarded as the important disease marker of Heart failure (HF). Therefore, preliminary study has been carried out for the use chemical sensor based on Polyaniline doped with [3,3′-Co(1,2-C2B9H11)2]−1 anion (PANI/COSANE) for the detection and quantification of [...] Read more.
Acetone in human breath has been regarded as the important disease marker of Heart failure (HF). Therefore, preliminary study has been carried out for the use chemical sensor based on Polyaniline doped with [3,3′-Co(1,2-C2B9H11)2]−1 anion (PANI/COSANE) for the detection and quantification of acetone in human breath. This chemical sensor was prepared by Galvano-statically growing a polymeric layer based on PANI/COSANE and PANI/Nitrate by electrochemical polymerization onto the two different interdigitated gold microelectrodes on a silicon chip surface using cyclic voltammetry. Measurement of change in conductance due to the presence of acetone in its vicinity at room temperature (20–25 °C) is performed in differential configuration mode using Lock-in amplifier. The developed acetone sensor has been calibrated under different acetone atmospheres using a Lock-in amplifier. This novel Acetone micro sensor showed good response, recovery, and stability for the detection of acetone in the range of 1 ppm–8 ppm. Full article
(This article belongs to the Proceedings of EUROSENSORS 2018)
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4 pages, 351 KiB  
Proceeding Paper
A Highly Sensitive Potentiometric Amphetamine Microsensor Based on All-Solid-State Membrane Using a New Ion-Par Complex, [3,3′-Co(1,2-closo-C2B9H11)2]− C9H13NH+
by J. Gallardo-Gonzalez, A. Baraket, S. Boudjaoui, Y. Clément, A. Alcácer, A. Streklas, F. Teixidor, N. Zine, J. Bausells and A. Errachid
Proceedings 2017, 1(4), 481; https://doi.org/10.3390/proceedings1040481 - 7 Aug 2017
Cited by 1 | Viewed by 1909
Abstract
In the present work a highly sensitive ion-selective microelectrode for the detection of amphetamine is presented. For this purpose, a novel ion-par complex based on the metallocarborane, cobalt bis(dicarbollide) anion ([3,3′-Co(1,2-C2B9H11)2]−) coupled to [...] Read more.
In the present work a highly sensitive ion-selective microelectrode for the detection of amphetamine is presented. For this purpose, a novel ion-par complex based on the metallocarborane, cobalt bis(dicarbollide) anion ([3,3′-Co(1,2-C2B9H11)2]−) coupled to amphetamonium cation has been prepared as the active site for amphetamine recognition. The prepared ion-par complex was incorporated to a PVC-type sensitive membrane. It was then drop-casted on the top of a gold microelectrode previously modified with a solid contact layer of polypyrrole. This novel amphetamine microsensor has provided excellent and quick response within the range 10−5 M to 10−3 M of amphetamine concentration, a limit of detection of 12 µM and a slope of 60.1 mV/decade. It was also found to be highly selective toward some potential interference compounds when compared to amphetamine. Full article
(This article belongs to the Proceedings of Proceedings of Eurosensors 2017, Paris, France, 3–6 September 2017)
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