Highly sensitive potentiometric sensors for thorium ions detection using morpholine derivative self-assembled on silver nanoparticles

Akl, Zeinab F.; Ali, Tamer Awad

doi:10.1039/c6ra14784d

Cited by 26 publications

(16 citation statements)

References 54 publications

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“…Recent development of potentiometric sensors attempts to meet these requirements to achieve highly stable for continuous and long‐term usage. The solid contact is typically made of conducting polymers, redox active self‐assembled monolayers (SAMs), and nanomaterials with high capacitance . Conducting polymers are suitable candidates for solid contact as they have both ionic and electrical conductivity and convert ionic to electrical signal by doping–dedoping of the conducting polymer .…”

Section: Flexible Potentiometric Sensorsmentioning

confidence: 99%

Flexible Electrochemical Bioelectronics: The Rise of In Situ Bioanalysis

et al. 2019

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The amalgamation of flexible electronics in biological systems has shaped the way health and medicine are administered. The growing field of flexible electrochemical bioelectronics enables the in situ quantification of a variety of chemical constituents present in the human body and holds great promise for personalized health monitoring owing to its unique advantages such as inherent wearability, high sensitivity, high selectivity, and low cost. It represents a promising alternative to probe biomarkers in the human body in a simpler method compared to conventional instrumental analytical techniques. Various bioanalytical technologies are employed in flexible electrochemical bioelectronics, including ion‐selective potentiometry, enzymatic amperometry, potential sweep voltammetry, field‐effect transistors, affinity‐based biosensing, as well as biofuel cells. Recent key innovations in flexible electrochemical bioelectronics from electrochemical sensing modalities, materials, systems, fabrication, to applications are summarized and highlighted. The challenges and opportunities in this field moving forward toward future preventive and personalized medicine devices are also discussed.

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Section: Flexible Potentiometric Sensorsmentioning

confidence: 99%

Flexible Electrochemical Bioelectronics: The Rise of In Situ Bioanalysis

et al. 2019

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“…The modiFed paste was Flled in electrode body and kept in distillated water for 24 h before use. A fresh surface was obtained by gently pushing the stainless-steel screw forward and polishing the new carbon-paste surface with Flter paper to obtain a shiny new surface when polished on a paper [25][26][27][28].…”

Section: Electrodes Preparation Preparation Of Modified Carbon Paste mentioning

confidence: 99%

Highly sensitive electrochemical sensor determination of drug in pharmaceutical analysis

2020

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M ODIFED carbon paste electrodes and screen printed electrodes were developed for the potentiometric determination of butenaFne hydrochloride (BTFHC) in urine, serum and pharmaceutical preparations. Two modiFed carbon paste electrodes (electrodes A and C) and two modiFed screen printed electrodes (electrodes B and D) using tricresylphosphate (TCP) and o-nitrophenyloctyl ether (o-NPOE) plasticizers, respectively, were used. The electrodes showed a linear concentration range from 1.57×10-7 to 1.0 × 10-2 and 1.0 × 10-7 to 1.0 × 10-2 mol L-1 with detection limit of 1.57×10-7 and 1.0 × 10-7 mol L-1 for modiFed carbon paste (MCPEs; electrodes A and B) and modiFed screen printed (MSPEs; electrodes C and D), respectively. The calibration graphs have slope values of 56.95±0.56, 58.22±0.78, 56.18±0.66 and 57.69±0.39 mV decade-1 for electrodes A, B, C and D, respectively. The response time was relatively quick in the whole concentration range and was found to be 12s for electrodes (A and B) and 7s for electrodes (C and D). The electrodes were found to have life time of 82, 99, 160 and 185 days without showing any deviations in a pH range of 5.0-9.0 and 4.0-9.0 for MCPEs (electrodes A and B) and MSPEs electrodes (C and D), respectively. The fabricated electrodes displayed good selectivity for BTFHC with respect to number of common foreign inorganic cations, sugar species, organic and glycine as the Fllers that may be added to the pharmaceutical preparation or biological fluids. Fortunately, such materials mostly do not interfere. The potential application of the sensors (A-D) was accomplished as a result of good recoveries made from real samples fortiFed with BTFHC. Results indicated the proFciency of the sensors reliable for rapid, onsite monitoring of BTFHC in pharmaceutical preparation and in biological samples.

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“…Mineral oil isn't component-xed since its use in a variety of petroleum rening and crude oil processing processes, and certain unaccounted components can have unanticipated effects on detection and analysis. [23][24][25] They also have a mechanical issue, with mechanical stability that falls between membrane electrodes and solid electrodes.…”

Section: Introductionmentioning

confidence: 99%

Design and construction of an electrochemical sensor for the determination of cerium(iii) ions in petroleum water samples based on a Schiff base-carbon nanotube as an ionophore

Ali

2022

RSC Adv.

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Highly sensitive potentiometric sensors for thorium ions detection using morpholine derivative self-assembled on silver nanoparticles

Abstract: Potentiometric screen-printed electrodes were constructed for Th(iv) determination in water samples. The optimized electrodes exhibited fast response time, wide linear range, low detection limit and high selectivity towards Th(iv) ions.

Cited by 26 publications

References 54 publications

Flexible Electrochemical Bioelectronics: The Rise of In Situ Bioanalysis

Flexible Electrochemical Bioelectronics: The Rise of In Situ Bioanalysis

Highly sensitive electrochemical sensor determination of drug in pharmaceutical analysis

Design and construction of an electrochemical sensor for the determination of cerium(iii) ions in petroleum water samples based on a Schiff base-carbon nanotube as an ionophore

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