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Optimized detection of calcium ion in serum using constant potential coulometry with metastable liquid-liquid contact doping enhanced PEDOT: PSS ink.
Bioelectrochemistry
January 2025
School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China; Key Laboratory for Polymeric Composite & Functional Materials of Ministry of Education, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People's Republic of China.
Highly stable calcium ion selective electrodes (Ca-ISEs) were developed by drop-casting a layer of poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT: PSS) as an ion-to-electron transfer layer onto Au electrode. The conductive PEDOT: PSS ink was prepared using a metastable liquid-liquid contact (MLLC) doping method, which induced phase separation, removed excess PSS, and significantly enhanced charge transfer kinetics and conductivity. The resulting Ca-ISEs exhibited excellent electrochemical performance.
View Article and Find Full Text PDFAdding colour to ion-selective membranes.
Talanta
January 2025
Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland. Electronic address:
An idea of using ion-exchanger salt containing optically active cations to prepare ion-selective membranes is proposed. Although the presence of an ion-exchanger in the composition of neutral ionophore based sensors is necessary, the choice of available salts for cation-selective sensors preparation, is usually limited to sodium or potassium compounds. In this work we propose application of an alternative salt, using a cation optically active both in absorption and emission mode as a mobile one.
View Article and Find Full Text PDFFlow-Electrode capacitive deionization for enhanced selective separation of Ammonia, Phosphorus, and caproate from sewage sludge fermentation: Performance and mechanistic insights.
Bioresour Technol
January 2025
School of Environment and Ecology, Jiangnan University, Wuxi 214122 China; Jiangsu Collaborative Innovation Center of Water Treatment Technology and Material, Suzhou University of Science and Technology, Suzhou 215011 China. Electronic address:
Caproic acid has broad applications and can be produced from activated sludge via fermentation, but its quality is hindered by ammonia (NH-N) and reactive phosphorus (RP) in the fermentation broth. However, flow-electrode capacitive deionization (FCDI), a novel ion separation technology that operates continuously without secondary pollution seems to be an efficient process that separates the ions. The results showed that at pH 5.
View Article and Find Full Text PDFFabrication of promising competitive graphene nanocomposite transducer to determine Prucalopride succinate in pharmaceutical formulation and in spiked human biological fluids.
BMC Chem
January 2025
Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
The development of a newly fabricated ion-selective electrode (ISE) solid-contacted type for the determination of prucalopride succinate represents a significant advancement in analytical chemistry, particularly in the context of green chemistry principles. The optimization process involved numerous trials to ensure the selection of a cation exchanger and ionophore that offer high sensitivity and selectivity for prucalopride succinate. Through these optimization trials, sodium tetrakis was identified as the most suitable cation exchanger, while calix [8] arene demonstrated the highest affinity towards prucalopride succinate as the ionophore.
View Article and Find Full Text PDFEfficient separation and extraction of copper ions from electroplating wastewater by capacitive deionization using chalcopyrite (CuFeS) electrode.
J Colloid Interface Sci
December 2024
School of Environmental Science and Engineering, Guangzhou University, Guangzhou Higher Education Mega Centre, Guangzhou 510006. PR China.
As a hot issue, the scientific and effective separation and extraction of heavy metal ions from complex industrial effluent deserves wide investigation. Copper is an important valuable heavy metal in industrial wastewater. Selective extraction of copper ion (Cu) from effluent not only alleviates the shortage of resources, but also has economic and social benefits.
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