Article
Chemistry, Analytical
Vahid Riahifar, Nahid Haghnazari, Fatemeh Keshavarzi, Elahe Ahmadi
Summary: This study introduced a sensitive sensor for detecting MET based on a modified glassy carbon electrode using Fe3O4@PPy core-shell and ErGO. The sensor was characterized using FE-SEM and EIS, showing better analytical performance compared to other modified electrodes for MET detection. The sensor exhibited a wide linear range and low detection limit, with good reproducibility, sensitivity, and long-term performance, making it a promising candidate for MET determination in urine and serum samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Oznur Gungor, Muammer Burc, Chedia Ben Ali Hassine, Suleyman Koytepe, Serap Titretir Duran
Summary: An effective voltammetric sensor was developed for the determination of penicillin G by electro-polymerization. The modified electrode showed significantly increased selectivity and sensitivity compared to the bare electrode. The developed sensor can be applied for penicillin detection in food and biological samples.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Chemistry, Analytical
Lu Wang, Lan Zhang, Baoxian Ye
Summary: An efficient method for in-situ assembly of silver nanoparticles on glycine functionalized graphene has been proposed, which only requires a simple hydrothermal reaction. The microstructure of the material was characterized and the electrochemical sensor prepared showed improved performance compared to the control samples. The electrochemical reaction mechanism and quantitative analysis of bergenin were studied, and the analytical availability of the sensor was demonstrated in real-life samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
M. Esmaeili, F. Ahour, S. Keshipour
Summary: A novel nanomaterial, GQD-DMC, was successfully synthesized by functionalizing graphene quantum dots with dimercaprol. This material shows enhanced sensitivity and selectivity for the detection of mercury(ii) ions in water samples, achieved through pre-concentration of the ions driven by affinity interactions with functional groups on the surface.
Article
Chemistry, Analytical
Sevilay Erdogan Kablan, Tuba Recber, Gizem Tezel, Selin Seda Timur, Cansu Karabulut, Tutku Ceren Karabulut, Hakan Eroglu, Sedef Kir, Emirhan Nemutlu
Summary: A direct, simple, and sensitive method based on electrochemical deposition of reduced graphene oxide (rGO) on a glassy carbon electrode (GCE) using cyclic voltammetry (CV) was developed for Molnupiravir (MOL) quantitative analysis. The developed sensor showed a linear range and detection limit, and its electrochemical response characteristics were characterized. The sensor was validated according to ICH guidelines and successfully applied for the quantification of MOL in capsule formulations.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Applied
Aziz Eftekhari, Maryam Dalili, Ziba Karimi, Shamila Rouhani, Amir Hasanzadeh, Sadegh Rostamnia, Samad Khaksar, Azeez Olayiwola Idris, Hassan Karimi-Maleh, Mehmet Lutfi Yola, Titus A. M. Msagati
Summary: This work describes a novel electrochemical sensor based on Cu functionalized SBA-15 like periodic mesoporous organosilica-ionic liquid composite for the sensitive detection of bisphenol A (BPA). The sensor showed a linear detection range for BPA, high stability, and accuracy of results when applied to detect BPA in environmental samples, making it a powerful tool for rapid and sensitive detection of BPA.
Article
Electrochemistry
Sariktiya Chuenjitt, Ananya Kongsuwan, Cheng Ho Phua, Jenjira Saichanapan, Asamee Soleh, Kasrin Saisahas, Kritsada Samoson, Sangay Wangchuk, Kiattisak Promsuwan, Warakorn Limbut
Summary: The glassy carbon electrode modified with poly(neutral red)/porous graphene was developed for the determination of hydroquinone in skin whitening creams. The electrode showed improved sensitivity and detection limit compared to other electrode configurations. The proposed method successfully quantified hydroquinone in the creams with good repeatability and anti-interference properties.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Linh Duy Nguyen, Tin Chanh Duc Doan, Tien Minh Huynh, Vu Nguyen Pham Nguyen, Hiep Hoang Dinh, Dung My Thi Dang, Chien Mau Dang
Summary: A PVA/chitosan-TRG modified glassy carbon electrode was studied for determination of lead in aqueous samples using SWASV, showing significant enhancement in sensitivity and selectivity. The modified electrode had a detection range of 1 ppb to 50 ppb, with a LOD of 0.05 ppb, and could successfully detect Pb in real water samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Environmental Sciences
Hadi Beitollahi, Fariba Garkani Nejad, Zahra Dourandish, Somayeh Tajik
Summary: This study developed an electrochemical sensor for the detection of amaranth, a potentially toxic dye used in the textile industry. The sensor utilized polypyrrole nanotubes to enhance the electrocatalytic activity for amaranth detection. The results showed that the sensor had a wide linear dynamic range and a low limit of detection, making it suitable for practical applications.
ENVIRONMENTAL RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
V. S. Haritha, Athira Vijayan, S. R. Sarath Kumar, R. B. Rakhi
Summary: The facile synthesis of MoS2 microspheres and the construction of MoS2/glassy carbon electrodes for precise detection of hydrogen peroxide were reported. The MoS2-modified GCE displayed superior electrocatalytic reduction of H2O2 due to its high surface area and good electrical conductivity. The MoS2/GCE sensor exhibited high sensitivity, linearity in detection, and low detection and quantification limits.
Article
Chemistry, Analytical
Rafael Henrique de Oliveira, Daniel A. Goncalves, Diogo Duarte dos Reis
Summary: This work presents a straightforward approach to creating a nanocomposite of multiwalled carbon nanotubes (MWCNTs) and titanium dioxide (TiO2) using the hydrothermal technique. The nanocomposite is characterized using various techniques and employed in an electrochemical system for detecting hydrogen peroxide in water. The developed sensor demonstrates a wide linear response range and low detection limit, providing a simple and highly sensitive method for hydrogen peroxide detection in aqueous solutions and showing promising potential for real-world applications, especially in H2O2 monitoring.
Article
Polymer Science
Imren Taskin, Oznur Gungor, Serap Titretir Duran
Summary: In this study, a poly(3-methylthiophene) modified electrode was developed for the detection of florfenicol. Through investigating the sensor property of the modified electrode, it was found that the selectivity, sensitivity, and response stability of the modified electrode were significantly improved. The developed sensor showed high reproducibility, stability, sensitivity, and selectivity for florfenicol detection in red and chicken meat samples.
Article
Electrochemistry
Salhah D. Al-Qahtani, Enas Aljuhani, Reem Shah, Samar Y. Al-nami, Zehbah A. Al-Ahmed, Mohamed E. Khalifa, Nashwa M. El-Metwaly
Summary: In this study, a novel carbon paste electrode incorporated with reduced graphene oxide (rGO) was used for sensitive adsorptive voltammetric determination of oxfendazole (OXF) in veterinary formulations and spiked milk samples. The electrode exhibited reversible electrooxidation behavior of OXF with mixed adsorption-diffusion mechanism. Linear calibration curves were constructed with a wide concentration range and a low LOD value. The rGO-based sensors showed improved sensitivity, reproducibility, operational lifetime, and shelf lifetime compared to reported OXF sensors. The fabricated sensors were successfully applied in the quantification of OXF in veterinary formulations and spiked milk samples with high accuracy and precision.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Ademar Wong, Anderson M. Santos, Camila A. Proenca, Thaisa A. Baldo, Maria H. A. Feitosa, Fernando C. Moraes, Maria D. P. T. Sotomayor
Summary: This work presents a simple, rapid and low-cost method for the determination of 3-methylmorphine at nanomolar levels in clinical and environmental samples. The method utilizes a modified glassy carbon electrode and square-wave voltammetry with a specific buffer solution. The method demonstrates high sensitivity, wide linear range, and good selectivity for the detection of 3-methylmorphine.
Article
Chemistry, Analytical
Zeynab Khorablou, Faezeh Shahdost-Fard, Habib Razmi
Summary: A simple electrochemical sensor based on conductive carbon cloth modified with carbon selenide nanofilms has been developed for the sensitive and rapid detection of pethidine (PTD). The sensor showed high sensitivity and fast response, enabling accurate measurement of PTD concentrations in biofluids.
Article
Chemistry, Analytical
Gang Qu, Yuxin Zhao, Qiaoli Zhang, Jina Wu, Xiaosen Li, Yang Yang, Shilei Liu
Summary: In this study, magnetic mesoporous materials combined with real-time in situ mass spectrometry were used for the high-throughput detection of hydrolyzed products of organophosphorus nerve agents. The method showed good linearity, low limits of detection and quantification, and high extraction recoveries. The magnetic preparation method used was quick, cost-effective, rugged, and safe. The results demonstrated the potential of this method for rapid and efficient determination of the target analytes in environmental samples.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Anna Hildebrand, Mariam Merchant, Danny O'Hare
Summary: Substandard and falsified artemisinin derivatives in antimalarials have caused significant deaths and economic losses. This study evaluates the feasibility of voltammetric methods for identifying and quantifying artemether. The findings suggest that electrochemical analysis shows promise as a method for artemether identification and quantification.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Marx Osorio Araujo Pereira, Alvaro Ferreira Junior, Edson Silvio Batista Rodrigues, Helena Mulser, Giovanna Nascimento de Mello e Silva, Wallans Torres Pio dos Santos, Eric de Souza Gil
Summary: Brazilian spotted fever (BSF) is a serious and rapidly evolving disease. A new impedimetric immunosensor was developed for rapid diagnosis by measuring specific antibodies in plasma. The sensor demonstrated selectivity and accuracy, and has potential for important applications in diagnostic testing.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Kathrin Schilling, Ronald A. Glabonjat, Olgica Balac, Marta Galvez-Fernandez, Arce Domingo-Relloso, Vesna Slavkovich, Jeff Goldsmith, Miranda R. Jones, Tiffany R. Sanchez, Ana Navas-Acien
Summary: Analysis of trace elements in urine is an important tool for assessing exposures, diagnosing nutritional status, and guiding public health and healthcare intervention. This study provides a sensitive method for analyzing 18 elements in urine samples, using only 100 μL. The results show good accuracy and sensitivity of the method.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Mengya Li, Shijie Liu, Shiliang Guo, Dong Liang, Miaoyun Li, Yaodi Zhu, Lijun Zhao, Jong-Hoon Lee, Gaiming Zhao, Yangyang Ma, Yanxia Liu
Summary: In this study, a magnetic flow device was developed to purify spores in a culture medium system. The device used magnetic nanoparticles to absorb vegetative cells, separating them from the spores. The achieved purity of the collected spores was over 95%. The study also demonstrated a rapid quantitative detection method using Raman spectroscopy.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Wanqiong Liu, Zixuan Wu, Jianwei Peng, Zebin Xu, Yong Liang
Summary: Metal-organic frameworks (MOFs) are effective carriers for molecular imprinting, but their poor dispersibility in aqueous solution is a significant drawback. In this study, we have applied amphiphilic block copolymers and molecularly imprinted technology on MOFs to improve the hydrophilicity of molecularly imprinted fluorescent materials.
ANALYTICAL METHODS
(2024)
