Article
Chemistry, Analytical
Vinitha Mariyappan, Naveen Karuppusamy, Shen-Ming Chen, Paulsamy Raja, Rasu Ramachandran
Summary: A WS2/GdCoO3 nanocomposite was successfully prepared using hydrothermal-assisted synthesis, exhibiting excellent performance for detecting quercetin on an electrode. The material showed good electrochemical response and selectivity.
Article
Chemistry, Analytical
Ghadeer A. R. Y. Suaifan, Mohammad F. Khanfar, Mayadah B. Shehadeh, Asmaa Alnajajrah, Raghad Abuhamdan, Sameer Ahmad Hasan
Summary: This study successfully developed an electroanalytical electrode for the detection of albendazole (ABZ) active ingredient in pharmaceutical dosage form and contaminated animal-derived products. The modified electrode demonstrated high sensitivity and applicability, making it suitable for quality control in the pharmaceutical and food industry.
Article
Chemistry, Physical
Gulsah Congur
Summary: A novel electrochemical sensor for phenol detection was successfully developed with lower detection limits using m-GMN/c-PGEs, demonstrating good detection performance and selectivity in water samples.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Yanqing Yao, Xuhui Han, Xuanhe Yang, Jia Zhao, Chunpeng Chai
Summary: By intercalating Ti3C2Tx MXene as a conductive platform, the conductivity of ZIF-8 can be significantly improved, leading to enhanced electrochemical performance and providing valuable analytical capabilities for hydrazine sensing. MXene/ZIF-8 holds great promise for designing electrochemical sensors and advancing the development of new electrode materials.
CHINESE JOURNAL OF CHEMISTRY
(2021)
Article
Food Science & Technology
P. Senthil Kumar, B. S. Sreeja, K. Krishna Kumar, G. Padmalaya
Summary: The electrochemical behavior of sulfamethoxazole (SMX) was studied on the surface of glassy carbon electrode coated with Nafion, GO, ZnO, GO-ZnO nanocomposites using cyclic voltammetry. The results showed that the GO-ZnO nanocomposite electrode with Nafion coating exhibited a significant increase in background current for SMX detection. The study also investigated the effects of GO, ZnO, and varying amounts of ZnO with Nafion coating on the electrochemical performance of the electrodes. The results showed that the GO-ZnO/GC electrode had reduced peak currents but increased potential voltage difference compared to the GO/GC electrode.
FOOD AND CHEMICAL TOXICOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Gloria E. Uwaya, Omolola E. Fayemi
Summary: In this study, electrochemical sensors for choline detection were fabricated using green-synthesized metal oxides combined with functionalized multi-walled carbon nanotubes. The sensors showed enhanced reactivity towards choline oxidation and were proven to be selective, reproducible, stable, and applicable for real sample sensing in choline dietary supplements.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Materials Science, Ceramics
Somayeh Tajik, Hadi Beitollahi, Mehdi Shahedi Asl, Ho Won Jang, Mohammadreza Shokouhimehr
Summary: The present study utilized a nanocomposite material to modify a carbon paste electrode for the detection of sulfamethoxazole. The novel sensor showed a linear response with low detection and quantitation values for SMZ, making it suitable for analyzing SMZ in real samples.
CERAMICS INTERNATIONAL
(2021)
Article
Biochemistry & Molecular Biology
Chancellin Nkepdep Pecheu, Victor Kougoum Tchieda, Kevin Yemele Tajeu, Sherman Lesly Zambou Jiokeng, Andreas Lesch, Ignas Kenfack Tonle, Emmanuel Ngameni, Christoph Janiak
Summary: This study presents an amperometric sensor for the electroanalytical detection of epinephrine using a chemically modified inkjet-printed graphene electrode. The sensor exhibited higher sensitivity to epinephrine compared to the bare electrode. It was successfully applied for the determination of epinephrine in pharmaceutical preparations, with detection limits of 0.34μM and 0.26μM.
Article
Chemistry, Inorganic & Nuclear
Wiyogo Prio Wicaksono, Nadiya Irmasakti Fadilla, Aulia Asyura Zamar, Ganjar Fadillah, Mai Anugrahwati, Argo Khoirul Anas, Grandprix Thomryes Marth Kadja
Summary: The green synthesis of zinc oxide nanoparticles using orange peel waste extract as a bio-complexing agent was successfully achieved in this study. The prepared nanoparticles showed a significant excitation binding energy and had irregular sponge-like shapes. The electrochemical behavior study revealed that the modified graphite paste electrode with zinc oxide nanoparticles exhibited enhanced electron transfer rate and demonstrated high selectivity for formaldehyde detection.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Abdulrahman G. Alhamzani, Al-Hassan S. Mahdy, Mortaga M. Abou-Krisha, Tarek A. Yousef, M. Abd-Elsabour
Summary: In this study, a novel and eco-friendly synthesis method was proposed for the simultaneous determination of dopamine and acetaminophen using a silver-magnetic nanocomposite supported on nanocellulose modified glassy carbon electrode. The synthesized nanomaterials were characterized by various techniques, and important parameters such as scan rate and pH effects were investigated. The developed sensor showed good sensitivity and linearity, and was successfully applied to real sample analysis.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Analytical
Diana Maria da Silva, Madalena Carneiro da Cunha Areias
Summary: An electrochemical sensor based on gold-copper metal-organic framework immobilized on a glassy carbon electrode was applied for the detection of captopril, showing enhanced electrochemical response to the Cu-captopril complex adsorbed on the electrode surface. The method demonstrated good sensitivity and reliability, with a considerable potential for industrial applications based on the successful detection of captopril in commercial tablets.
Article
Chemistry, Physical
Mohamed Abd-Elsabour, Abdulrahman G. Alhamzani, Mortaga M. Abou-Krisha
Summary: This article investigates the electrochemical oxidation of methanol at various nickel-modified electrodes in NaOH solution, and finds that the newly developed poly-p-PD/Ni(II)/GE electrode exhibits higher catalytic activity for methanol oxidation. The electrochemical activity and diffusion-controlled process at the surface of the poly-p-PD/Ni(II)/GE electrode are also analyzed.
Article
Materials Science, Multidisciplinary
Gaffar Sarwar Zaman, Ibrahem Waleed, Ruaa Ali Obeid, Shaymaa Abdulhameed Khudair, Saafa Abaas Abd Al-Kahdum, Kadhum Al-Majdi, Ahmed S. Abed, Ali Alsalamy, Maytham T. Qasim, Ahmed Hussien Radie Alawadi
Summary: We used a new three-dimensional carnation flower-like Tb3+/Co3O4 nanocomposite to modify a screen-printed electrode (SPE) and detected Zearalenone in real dairy, juices, and other liquid food specimens. The as-prepared sensor showed high electrical conductivity, large surface area, abundant binding sites, and excellent stability. The electrochemical analysis of the modified electrode demonstrated a wide linear dynamic range and a narrow limit of detection for Zearalenone concentration.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Analytical
Lawrence K. Muthuri, Livia Nagy, Geza Nagy
Summary: Recently, a novel chronopotentiometric method has been introduced for assessing antioxidant activity. The performance of chemically modified working electrodes made of different pencil materials were tested in this method. The stability and structure of the formed Meldola Blue film on the electrode surfaces were studied. Antioxidant measurements were conducted by controlled potential oxidation of the mediator and recording the open cell potential over time. The initial slope of the recorded potential was used as the analytical signal, showing the applicability of the pencil probes.
Article
Electrochemistry
Anna Kwiecien, Adam Sroka, Irena Majerz
Summary: A new electrochemical method was developed for the determination of fenamic acid and its derivatives in aqueous solution, showing advantages of convenience, speed, and low cost. The study suggests potential applications of the proposed electrochemical method in the pharmaceutical industry, with detailed research and determination of various analytical parameters.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
