Article
Chemistry, Medicinal
Ling Gong, Shan Li, Zhengzhi Yin, Kelin Li, Jiawei Gu, Datong Wu, Yong Kong
Summary: Poly(p-aminobenzene sulfonic acid) and polypyrrole were electrodeposited onto a glassy carbon electrode to preconcentrate l-tryptophan through molecular imprinting. Overoxidized PPy/pABSA modified GCE showed higher affinity towards l-Trp than d-Trp due to specific electrochemical interactions.
Article
Polymer Science
Muammer Burc, Serap Titretir Duran, Oznur Gungor, Ali Ersin Karagozler
Summary: An effective electrochemical method based on modified glassy carbon electrode was developed for the determination of gentamicin. The prepared gentamicin selective electrode showed high linearity and low detection and quantitation limits, making it suitable for various pharmacological, medical and biochemical applications.
Article
Chemistry, Analytical
A. Kumaravel, M. Murugananthan
Summary: A novel nanosilver/dodecane modified electrode was developed for the electrochemical sensing of fenitrothion in environmental samples such as potatoes and paddy, showing lower reduction potential and higher sensing current. The electrode demonstrated excellent stability and constant sensitivity over multiple cycles of analysis, with a lower limit of detection compared to other electrodes. The results obtained using the electrochemical approach were in good agreement with those from the HPLC technique. The modified electrode presents a cost-effective alternative for detecting fenitrothion pesticides.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Ruobing Su, Hongliang Tang, Fengna Xi
Summary: A convenient, rapid, and sensitive electrochemical sensor based on vertically-ordered mesoporous silica-nanochannel film (VMSF) has been developed for the detection of p-nitrophenol (p-NP) in environmental samples. The sensor exhibits simple fabrication process, high sensitivity, selectivity, good antifouling, and regeneration performance.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Analytical
Dai Kato, Tomoyuki Kamata, Michinori Sumimoto
Summary: By studying nanocarbon film electrodes, we successfully detected tryptophan metabolites, particularly kynurenic acid (KYNA), due to the superior electrode properties and unique structure of the nanocarbon film. The sp(2)/sp(3) ratio of the nanocarbon film plays a crucial role in electrode activity, potential window, and electrode performance, with nanocarbon films containing high sp(3) content exhibiting better performance and theoretical oxidation potential values matching experimental results.
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)
Article
Chemistry, Analytical
Codruta Varodi, Florina Pogacean, Maria Coro, Alexandra Ciori, Stela Pruneanu
Summary: In this study, a graphene sample (EGr) was synthesized through electrochemical exfoliation method. Scanning electron microscopy (SEM) was used to observe the morphology of the graphene material. The graphene modified electrode exhibited higher sensitivity and lower detection limit in L-tyrosine detection compared to the bare glassy carbon electrode, demonstrating the advantages of using graphene in electrochemical sensing.
Article
Environmental Sciences
Tsholofelo I. Sebokolodi, Dimpo S. Sipuka, Charles Muzenda, Oluchi V. Nkwachukwu, Duduzile Nkosi, Omotayo A. Arotiba
Summary: This study presents the development and characterization of an electrochemical sensor for the detection of nicotine. The sensor demonstrated enhanced performance and selectivity, and achieved accurate measurement of nicotine concentration in real samples.
Article
Electrochemistry
S. Swathy, Manna Rachel Mathew, K. Girish Kumar
Summary: We have developed an electrochemical sensor based on poly L-methionine/electrochemically reduced graphene oxide composite film modified glassy carbon electrode for the simultaneous determination of 5-hydroxyindole acetic acid and tyrosine. The sensor offers sensitive and selective detection, and has been successfully applied to artificial urine and blood serum samples.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Tian-Yao Qi, Zhen-Yu Yuan, Fan-Li Meng
Summary: This study achieved trace determination of PAA at ultra-low concentrations using hydrogen bond adsorption and electrochemical catalysis. The modified electrode had a wide response range and low detection limit for PAA, providing a feasible scheme for the detection of other drugs and aromatic precursor chemicals.
Article
Biochemistry & Molecular Biology
Parisa Karami-Kolmoti, Hadi Beitollahi, Sina Modiri
Summary: This study utilized manganese dioxide nanorods/graphene oxide nanocomposite (MnO2 NRs/GO) to modify a glassy carbon electrode (GCE), creating a modified electrode (MnO2 NRs/GO/GCE) that serves as an electrochemical sensor for hydroquinone (HQ) detection in water. Various electrochemical analysis techniques confirmed the improved performance of MnO2 NRs/GO/GCE in terms of higher electron transfer rate and conductivity. The linear relationship between HQ concentration and current response in the range of 0.5 μM to 300.0 μM, with a detection limit of 0.012 μM, along with the selective detection of HQ in the presence of interferent molecules, further validated the efficacy of the modified electrode for HQ determination in water samples.
Article
Engineering, Electrical & Electronic
Chedia Ben Ali Hassine, Hamza Kahri, Houcine Barhoumi
Summary: The paper presented a simple method to fabricate a sensor based on Ni nanoparticles and P4NA-modified GCE for simultaneous detection of catechol and hydroquinone. The modified electrode exhibited high sensitivity and selectivity, showing good linear response in a wide concentration range. The sensor was successfully applied for the detection of both analytes in real seawater samples.
IEEE SENSORS JOURNAL
(2021)
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, Multidisciplinary
Zongyi You, Yi Zhang, Shengwen Duan, Liangliang Liu
Summary: Olivetol, an important polyphenol compound, was detected using a facile electrochemical sensor based on p-L-serine and copper oxide nanoparticles modified carbon paste electrode. The sensor showed enhanced electrochemical signals for olivetol compared to bare carbon paste electrode and copper oxide/carbon paste electrode. The proposed sensor exhibited a good quantitative analysis ability with a wide analysis range and low limit of detection, making it a cost-effective and convenient choice for olivetol determination.
Article
Instruments & Instrumentation
Yuchun Wang, Zhaorong Liu, Chao Tan
Summary: A simple and environmentally friendly electrochemical deposition method was used to prepare a poly-salicylaldehyde para-aminobenzoic acid modified glassy carbon electrode for the detection of nitrite. The electrode showed good electrocatalytic performance, selectivity, stability, and reproducibility, making it promising for nitrite detection applications.
SENSORS AND MATERIALS
(2021)
