Review
Chemistry, Inorganic & Nuclear
Zufar N. Gafurov, Artyom O. Kantyukov, Alexey A. Kagilev, Oleg G. Sinyashin, Dmitry G. Yakhvarov
Summary: Electrochemical methods show great potential in synthesizing organometallic compounds, with direct electrochemical synthesis of organometallic derivatives by forming carbon-metal bonds being particularly important in practice. Techniques such as cyclic voltammetry play a crucial role in the analysis and preparation of organometallic compounds.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Analytical
Maria G. Sande, Debora Ferreira, Joana L. Rodrigues, Luis D. R. Melo, Dirk Linke, Carla J. Silva, Felismina T. C. Moreira, Maria Goreti F. Sales, Ligia R. Rodrigues
Summary: In this study, new aptamers that bind to the virulence factor Yersinia adhesin A (YadA) of Yersinia enterocolitica were identified using cell-systematic evolution of ligands by exponential enrichment (cell-SELEX). A simple electrochemical biosensor was developed using the most promising aptamer candidate (Apt1) to detect YadA. The biosensor showed a linear range of detection and could potentially be used as a sensitive point-of-care detection system for Y. enterocolitica infections.
Article
Chemistry, Analytical
Nagarajan Sedhu, Jaganathan Jagadeesh Kumar, Paramasivam Sivaguru, Vairamuthu Raj
Summary: The electronic conductivity and electrocatalytic property of an electrode can be improved by coating its surface with a thin film, polymer, or some nanomaterial; however, the fabrication procedure is time-consuming, expensive, and requires multiple steps. In this study, an electrochemically polymerized polyglycine-coated pencil graphite electrode (PGl/PGE) was prepared for the sensitive detection of riboflavin (RF). The PGl/PGE sensor exhibited significantly enhanced charge transfer compared to the uncoated electrode. The sensor demonstrated a linear concentration range of 2-450 nM for RF detection with a limit of detection of 1.24 nM.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Alexey A. Kagilev, Vladimir I. Morozov, Ekaterina M. Zueva, Zufar N. Gafurov, Ilya K. Mikhailov, Artyom O. Kantyukov, Il'yas F. Sakhapov, Nataliya A. Zhukova, Milyausha S. Kadyrova, Vakhid A. Mamedov, Dmitry G. Yakhvarov
Summary: The electrochemical properties of 2,2'-bibenzimidazole and its substituted analogues were investigated, revealing the formation of 2,2'-bibenzoimidazolylidene species for N-H derivatives via ECEC reaction mechanism, and the formation of radical anion and dianion species for N,N-dimethyl substituted derivative.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Luiza A. Wasiewska, Ian Seymour, Bernardo Patella, Rosalinda Inguanta, Catherine M. Burgess, Geraldine Duffy, Alan O'Riordan
Summary: In this study, an electrochemical sensor was developed for silver ion detection in tap water using anodic sweep voltammetry with in-situ pH control. The sensor, enabled by closely spaced interdigitated electrode arrays, allowed for rapid and accurate detection of silver ions in tap water through a combination of complexation with chloride ions and in-situ pH control.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Multidisciplinary Sciences
Saheed E. Elugoke, Omolola E. Fayemi, Abolanle S. Adekunle, El-Sayed M. Sherif, Eno E. Ebenso
Summary: In this study, a poly-crystal violet modified electrode was prepared using electropolymerization on a bare glassy carbon electrode and applied for the detection of adrenaline. The optimal conditions for electropolymerization were determined using cyclic voltammetry and electrochemical impedance spectroscopy, and the modified electrode showed good performance in the detection of adrenaline using square wave voltammetry.
Article
Chemistry, Analytical
Jing Ru, Xuemei Wang, Jiali Zhao, Jing Yang, Zheng Zhou, Xinzhen Du, Xiaoquan Lu
Summary: A novel platform based on UiO-67 MOF and PtNPs was developed for the detection of arsenic in wastewater. The platform exhibited high sensitivity, selectivity, and reliability, and could accurately monitor and measure arsenic in different environmental samples.
MICROCHEMICAL JOURNAL
(2022)
Article
Biophysics
Nadine Wenninger, Sudkate Chaiyo, Alexander Kollau, Kurt Kalcher, Astrid Ortner
Summary: In this study, an immunosensor was developed for the direct and sensitive detection of symmetric dimethylarginine (SDMA) in urine, which is emerging as a biomarker for renal disease. The immunosensor utilizes anti-SDMA antibodies for specific detection and quantification. The proposed method showed excellent selectivity and a linear correlation between the peak decline and SDMA concentration in the range of 50 nM -1 μM, with a detection limit of 15 nM. This immunosensor can be valuable in the diagnosis and monitoring of renal disease by monitoring SDMA levels in urine.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Analytical
Ma Lucia Abad-Gil, Ma Jesus Gismera, Teresa Sevilla, Jesus R. Procopio
Summary: In this study, the electrochemical behavior of MIT on a gold electrode was investigated and square wave voltammetric methods were developed for its determination at different concentration levels. MIT showed an irreversible and diffusion-controlled oxidation process, with pH-dependent potential and peak current values. By using square-wave voltammetry (SWV) and adsorptive stripping approach (SWAdSV), it is possible to determine MIT in water samples with high sensitivity and low detection limits. Both SWV and SWAdSV methods were successfully applied for the analysis of MIT in different water samples.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Lanting Qian, Reem Elmahdy, Antony Raj Thiruppathi, Aicheng Chen
Summary: A reliable, ultrasensitive, and easy-to-use sensor for the electrochemical detection of acetaminophen using a nanoporous gold electrode was developed. The nanoporous gold electrode underwent post-treatment to significantly increase its electrochemically active surface area, leading to improved sensor performance. The sensor demonstrated a low detection limit and strong anti-interference capability, showing potential for medical diagnostics and pollutant surveilliance in source waters.
Article
Biophysics
Patricia Rebelo, Estefania Costa-Rama, Isabel Seguro, Joao G. Pacheco, Henri P. A. Nouws, M. Natalia D. S. Cordeiro, Cristina Delerue-Matos
Summary: The increasing presence of contaminants in environmental waters poses a threat to both the environment and human health. Electrochemical sensing based on molecularly imprinted polymers (MIPs) offers a promising solution for detecting pharmaceuticals, pesticides, heavy metals, and other pollutants in water samples with high selectivity, sensitivity, and rapid response.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Analytical
Rayan Marcel Carvalho, Evandro Rodrigo Pedao, Fernanda Mesquita Roese Guerbas, Melisa Porto Tronchini, Valdir Souza Ferreira, Jacqueline Marques Petroni, Bruno Gabriel Lucca
Summary: In this study, an electrochemical study and a novel electroanalytical method for determination of the fungicide benzovindiflupyr (BENZO) were presented. The method showed good accuracy and precision and was successfully employed for qualitative and quantitative forensic analysis of BENZO in smuggled products.
Review
Biochemistry & Molecular Biology
Antonella Curulli
Summary: Safety and quality are essential in the food industry, leading to a growing demand for sensitive sensing systems to protect against harmful substances. Electrochemical sensors/biosensors are important tools in food screening, although they still face challenges in their development and application.
Article
Chemistry, Analytical
G. Tibbits, N. A. Wall, S. Saunders, J. Babauta, H. Beyenal
Summary: The research demonstrates that depositing a hematite film on the surface of a carbon microelectrode significantly improves the detection sensitivity of FMN. After optimizing the deposition conditions, the hematite-filmed microelectrode shows superior detection performance for FMN at low concentrations compared to the bare carbon fiber microelectrode.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Applied
Mariola Brycht, Anna Lukawska, Michaela Fruhbauerova, Katerina Pravcova, Radovan Metelka, Slawomira Skrzypek, Milan Sys
Summary: A new electroanalytical method was developed for the determination of FNX residues in fruit samples, utilizing square-wave voltammetry with a glassy carbon paste electrode. The method showed a linear range, sensitivity, and detection limit for FNX, and demonstrated satisfactory agreement with a reference chromatographic method when applied to blueberries and wine grapes. This approach could potentially be used for screening assays in food quality control.
Article
Electrochemistry
Bojana Nedic Vasiljevic, Aleksandar Z. Z. Jovanovic, Slavko V. V. Mentus, Natalia V. V. Skorodumova, Igor A. A. Pasti
Summary: Surface modification with rhodium through galvanic displacement significantly improves the catalytic activity of cobalt for hydrogen and oxygen evolution reactions in alkaline media. The overpotential for hydrogen and oxygen generation is reduced by 0.16 V and 0.06 V, respectively, after only 20 seconds of galvanic displacement. Density Functional Theory calculations indicate that the reactivity of the Rh-modified Co(0001) surface is different from that of the clean Co(0001) surface.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Chemistry, Analytical
Mohamed Bahri, Mohamed Amin Elaguech, Salem Nasraoui, Khouloud Djebbi, Olfa Kanoun, Peiwu Qin, Chaker Tlili, Deqiang Wang
Summary: Various carbon-based biosensors, including mechanical exfoliation, epitaxial growth, reduced graphene oxide, and chemical vapor deposition, have been investigated for sensitive and specific detection of DNA. The laser-induced graphene technique has been widely adopted as a promising approach for designing electrochemical biosensors. In this study, a poly C(15)-tailed diblock DNA probe is used to anchor to a carbonized working electrode, and a second block modified with ferrocene derivatives is used for DNA sequence recognition.
MICROCHEMICAL JOURNAL
(2023)
Review
Chemistry, Analytical
Tamara Lazarevic-Pasti, Tamara Tasic, Vedran Milankovic, Nebojsa Potkonjak
Summary: The increase in production and consumption leads to the introduction of pollutants into the environment. The development of analytical methods for tracking environmental contaminants is crucial, especially high-throughput methods that eliminate time-consuming sample preparation techniques. Molecularly imprinted plasmonic-based sensors with high sensitivity and selectivity are promising for environmental protection.
Article
Chemistry, Analytical
Anurag Adiraju, Rohan Munjal, Christian Viehweger, Ammar Al-Hamry, Amina Brahem, Jawaid Hussain, Sanhith Kommisetty, Aditya Jalasutram, Christoph Tegenkamp, Olfa Kanoun
Summary: This study addresses the development of a nitrite sensor, which utilizes one-step electrodeposited gold nanoparticles for the detection of nitrite in water with a low limit of detection. A compact and cost-effective wireless potentiostat has been designed for on-site measurements outside the laboratory. This research lays the foundation for the development of further on-site distributed electrochemical sensor networks.
Article
Chemistry, Analytical
Meriam Ben Ammar, Salwa Sahnoun, Ahmed Fakhfakh, Christian Viehweger, Olfa Kanoun
Summary: A novel self-powered energy management circuit is proposed for harvesting energy from piezoelectric converters at low frequencies and irregular vibrations. It has a good power extraction ability and is adaptable for different storage capacitors and loads.
Article
Chemistry, Multidisciplinary
Ammar Al-Hamry, Tianqi Lu, Haoran Chen, Anurag Adiraju, Salem Nasraoui, Amina Brahem, Danica Bajuk-Bogdanovic, Saddam Weheabby, Igor A. Pasti, Olfa Kanoun
Summary: This study investigates the relative humidity sensor properties of graphene oxide (GO) and graphene oxide/multiwalled nanotubes (GO/MWNTs) composites. Composite sensors were fabricated using direct laser scribing and characterized using various spectroscopies and microscopy techniques. The results show that GO/MWNT-based humidity sensors are more stable and repeatable, and they have faster response/recovery times compared to GO sensors. The introduction of GO/MWNT hybrid and laser direct writing proves to be advantageous in producing stable structures and sensors.
Article
Chemistry, Analytical
Hussamaldeen Jaradat, Ammar Al-Hamry, Mohammed Ibbini, Najla Fourati, Olfa Kanoun
Summary: This study developed an H. pylori immunosensor based on detecting the biomarker HopQ in saliva. The sensor was created by modifying screen-printed carbon electrodes with MWCNT-COOH decorated with gold nanoparticles and grafting HopQ capture antibody on the surface. The sensor showed excellent sensitivity and linearity in the 10 pg/mL-100 ng/mL range, with a limit of detection of 2.0 pg/mL and a limit of quantification of 8.6 pg/mL. It demonstrated high selectivity, stability, reproducibility, and cost-effectiveness for early detection of H. pylori.
Article
Chemistry, Analytical
Guilherme Martins, Karolyne V. V. Oliveira, Saddam Weheabby, Ammar Al-Hamry, Olfa Kanoun, Tobias Rueffer, Benedito J. C. Cabral, Leonardo G. G. Paterno
Summary: This study proposes an optical method for detecting glyphosate (GLY) using a Cu(II) bis-(oxamate) complex as the fluorescent probe. The fluorescence of the probe increases in the presence of GLY in acetonitrile solution and shows a linear relationship with GLY concentration. The probe is selective to GLY even in the presence of potential interferents, and theoretical results suggest that GLY interacts with the probe through hydrogen bond formation.
Article
Materials Science, Multidisciplinary
Salem Nasraoui, Ammar Al-Hamry, T. I. Madeira, Sami Ameur, D. R. T. Zahn, Mounir Ben Ali, Olfa Kanoun
Summary: Laser-induced graphene (LIG) structures are fabricated on polyimide Kapton using a visible 405 nm laser, resulting in electrochemical sensors with large surface area and hierarchical porosity distribution. The electrochemical behavior is optimized at an exposure time of 10 ms, attributed to the high surface area and electron transfer rate constant.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Analytical
Saddam Weheabby, Zhenyn Wu, Ammar Al -Hamry, Igor A. Pasti, Adiraju Anurag, Doreen Dentel, Christoph Tegenkamp, Olfa Kanoun
Summary: This study demonstrates the voltammetric sensing of paracetamol using silver nanoparticles and carboxylated multi-walled carbon nanotubes on a screen-printed carbon electrode. The sensor shows effective sensing potential with a low detection limit under optimal conditions. Experimental and computational studies were conducted to support the findings. The proposed method shows promising applications for determining paracetamol in environmental and pharmaceutical samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Robert Fromm, Olfa Kanoun, Faouzi Derbel
Summary: Wake-up receivers play a crucial role in power-aware wireless sensor networks by reducing power consumption during RF reception and enabling low latency asynchronous communication. However, current wake-up receivers still need improvement compared to off-the-shelf RF transceivers. In this article, we propose several enhancements to enhance the performance and reliability of wake-up receivers, achieving significant advancements in signal detection, power consumption, and latency.
Review
Chemistry, Physical
Walid Al-Zyoud, Dana Haddadin, Sameer Ahmad Hasan, Hussamaldeen Jaradat, Olfa Kanoun
Summary: This review article explores the complex world of biocompatibility testing, including chemical, mechanical, and biological characterization. The researchers highlight the lack of an organized tool for selecting the appropriate biocompatibility test for implants. They propose a solution that includes a flowchart and Python code to guide stakeholders in navigating biocompatibility testing. This work bridges the gap between theory and implementation, empowering researchers in safer and more effective implant development.
Article
Chemistry, Physical
Goitom K. Gebremariam, Aleksandar Z. Jovanovic, Igor A. Pasti
Summary: This study evaluates the HER kinetic parameters of different metals in various electrolytes, showing that the shape of HER volcano curves remains largely unchanged in different electrolytes. The presence of surface oxide can have both positive and negative effects on HER kinetics, depending on the metal-electrolyte combination. The study also provides a comprehensive overview of HER kinetic data from diverse literature sources, offering practical insights for the development of new catalytic materials and optimization of electrolyte formulations for enhancing HER.
