Article
Biophysics
Kanako Ishii, Genki Ogata, Yasuaki Einaga
Summary: In this study, an electrochemical method using boron-doped diamond electrodes was developed for the rapid and low-cost detection of triamterene in urine samples. The method showed good sensitivity and selectivity, with a low limit of detection. This method could be useful for screening athletes for the use of diuretics.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Electrochemistry
Renata Selesovska, Karolina Schwarzova-Peckova, Romana Sokolova, Katerina Krejcova, Pavlina Martinkova-Keliskova
Summary: Triazole pesticides can be studied for electrochemical oxidation using diamond electrodes, providing a method for quantitation in aqueous solutions. The study showed similar results for DFC determination in model river water samples and pesticide preparations, with good recovery values for DFC only.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Phyllis E. Hayes, Alyah Buzid, John H. T. Luong, Jeremy D. Glennon
Summary: The electrooxidation mechanisms of guaiacol and its precursors in food and beverage spoilage were studied using cyclic voltammetry and liquid chromatography, with detection limits ranging from 10-30 nM. The method enabled rapid detection of these compounds with high sensitivity.
Article
Chemistry, Multidisciplinary
Peng Wang, Xiaoxi Yuan, Zheng Cui, Chunyan Xu, Zhaolong Sun, Jiahan Li, Junsong Liu, Yu Tian, Hongdong Li
Summary: A novel electrode combined of nanometer-sized graphite-BDD film (NG-BDD) was fabricated in this paper by converting an sp(3) diamond structure to an sp(2) graphitic phase at high temperature in boron-rich ambient. The electrode was characterized and used as an electrode of electrochemical biosensor to detect trace acetaminophen (APAP) accurately, showing potential for extensive application.
Article
Chemistry, Analytical
Simona Baluchova, Mariola Brycht, Andrew Taylor, Vincent Mortet, Jan Krusek, Ivan Dittert, Silvia Sedlakova, Ladislav Klimsa, Jaromir Kopecek, Karolina Schwarzova-Peckova
Summary: The study characterized three different thicknesses of BDDporous electrodes, finding that electrodes with more layers exhibited higher sensitivity and lower detection limits. Additionally, the presence of a poly-L-lysine coating on porous electrodes was shown to impact the detection performance of dopamine.
ANALYTICA CHIMICA ACTA
(2021)
Article
Biochemical Research Methods
Elizabeth M. M. Garcia, Paula A. A. Cordero, Sarah Kazemeini, Andrea Murillo-Soto, Karen A. A. Gonzalez, Alexander McClement, Cory A. A. Rusinek
Summary: This study investigates the detection of hydrogen peroxide on surface metal nanoparticle-modified boron-doped diamond electrodes. It is found that the palladium-modified electrode exhibits better response and lower detection limit compared to the platinum-modified electrode. The results demonstrate the potential of achieving sub-μM level hydrogen peroxide detection with non-enzymatic electrode materials.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Applied
Cheng-Kai Liu, Ming -Chi Liao, Chi-Tang Huang, Shao-Hao Liao, Ko -Ting Cheng
Summary: This paper demonstrates the detection of the polarization state of polarized light using azimuthally symmetric dye-doped liquid crystals (AS-DdLCs). Two methods are proposed, one involving image capture and analysis, and the other utilizing image comparison with a database. Techniques to improve detection accuracy and the comparison between the two methods are also discussed.
Article
Nanoscience & Nanotechnology
Mingjie Han, Yuhao Xu, Ri Wang, Yong Xie, Yuekun Wang, Chao Bian, Shanhong Xia
Summary: In this study, a portable, high-performance, and reusable boron-doped diamond (BDD) electrochemical sensor was developed using 4-mercaptopyridine-functionalized gold nanoparticles (4-MPY/Au NPs) as the sensing element. The sensor captures mercury ions (Hg2+) through specific coordination with nitrogen of pyridine, which reduces the electrochemical activity at the electrode surface. Current variations are monitored using differential pulse voltammetry (DPV) with a redox probe. The sensor demonstrates excellent logarithmic relationship in the range of 0.001-10 μg/L, with a low limit of detection (LOD) of 0.358 ng/L.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Analytical
Lucie Arberet, Fabien Pottier, Anne Michelin, Witold Nowik, Ludovic Bellot-Gurlet, Christine Andraud
Summary: The study focuses on characterising traditional Mesoamerican dye in manuscripts through a multi-analytical technique approach, identifying two compounds responsible for the colour through liquid chromatography analysis. Justicia spicigera leaves were used to produce the brown paint layers on the manuscript.
Review
Chemistry, Physical
Robert Bogdanowicz, Jacek Ryl
Summary: This brief review focuses on the recent progress in studies of the heterogeneous electrochemical behavior of various boron-doped materials, extending from zero-dimensional particles to three-dimensional surfaces. Boron-doped diamond exhibits large heterogeneities induced by factors like multifaceted crystallinity, uneven boron concentration, carbon ratio, surface terminations, and grain size distribution. Nanostructured diamond surfaces allow for high areas and large aspect ratios, showing highly heterogeneous charge-transfer performance for various applications.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Chemistry, Physical
Jerome A. Cuenca, Thomas Brien, Soumen Mandal, Scott Manifold, Simon Doyle, Adrian Porch, Georgina M. Klemencic, Oliver A. Williams
Summary: This study presents a coplanar waveguide resonator (CPR) for measuring kinetic inductance (L-k) and penetration depth (lambda(L)) of superconducting boron doped nanocrystalline diamond (B-NCD) at microwave frequencies. The results show that thin granular B-NCD films on Si have a large penetration depth and high kinetic inductance. These values are much larger than those typically obtained for films on single crystal diamond. The calculated surface resistance in the 0.4-1.2 GHz range at temperatures below 2 K demonstrates the potential of granular B-NCD for high quality factor superconducting microwave resonators and highly sensitive kinetic inductance detectors.
Article
Materials Science, Multidisciplinary
Suzanne Witt, Alexis Rogien, Diana Werner, James Siegenthaler, Raymond Lesiyon, Noelle Kurien, Robert Rechenberg, Nina Baule, Aaron Hardy, Michael Becker
Summary: This study lays the foundation for the development of a boron doped diamond (BDD) based impedimetric sensor, which can rapidly detect SARS-CoV-2 and other viruses. By utilizing a biotin-streptavidin linker complex and biotinylated anti-SARS-CoV-2 S1 antibodies, detectable changes in the S1 subunit were observed within 5 minutes at concentrations as low as 1 fg/mL.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Chemistry, Analytical
Huda Alghamdi, Majidah Alsaeedi, Alyah Buzid, Jeremy D. Glennon, John H. T. Luong
Summary: The study utilized GC and BDD electrodes for the detection of BAK homologs in a non-aqueous medium, with BDD showing better reproducibility and a detection limit of 0.4 μg/mL, in agreement with manufacturer specifications.
Article
Chemistry, Analytical
Huda Alghamdi, Majidah Alsaeedi, Phyllis E. Hayes, Jeremy D. Glennon
Summary: This study demonstrates the simultaneous determination of TCH and OZH using liquid chromatography with core-shell silica particles and electrochemical detection at a boron-doped diamond electrode. The developed method allows for rapid separation and detection of these compounds in pharmaceutical formulations and aqueous samples.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2022)
Article
Biochemistry & Molecular Biology
Eva Culkova, Zuzana Lukacova-Chomistekova, Renata Bellova, Miroslav Rievaj, Jarmila Svancarova-Lastincova, Peter Tomcik
Summary: This paper presents a new, simple, and highly selective analytical technique for the detection of sulfur dioxide in wine. The technique is based on the electrogeneration of iodine from iodide on a boron-doped diamond electrode. The selectivity of the determination is ensured through sample preparation and the inclusion of a blank measurement.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Analytical
Julius Gajdar, Kristina Stafurova, Jiri Barek, Jan Fischer
Summary: A novel retractable-pen-based renewable silver amalgam film electrode (RAE) was introduced for electrochemical sensing of electrochemically reducible compounds, offering good repeatability and low limit of quantification for environmental pollutant detection. This electrode utilizes mechanisms found in a common retractable ballpoint pen for mechanical renewal of the amalgam film.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Review
Chemistry, Analytical
Jiri Barek
Summary: Critical evaluation of modern voltammetric/amperometric methods reveals that electrode passivation/fouling is a major obstacle in their practical applications for real sample analysis. Different strategies to minimize these issues are explored and compared for their potential and feasibility in laboratory settings.
Article
Biochemistry & Molecular Biology
Muhammad Saqib, Elena V. Dorozhko, Jiri Barek, Vlastimil Vyskocil, Elena I. Korotkova, Anastasiia V. Shabalina
Summary: In this study, a laser-reduced graphene oxide (LRGO) grid electrode was prepared in one step to achieve sensitive carbaryl determination, with enhanced electroactivity and sensitivity. The LRGO grid electrode can detect carbaryl concentration in fruit juices, showing potential for widespread applications.
Article
Chemistry, Analytical
Elena Dorozhko, Anna S. Gashevskay, Elena Korotkova, Jiri Barek, Vlastimil Vyskocil, Sergei A. Eremin, Evgeny Galunin, Muhammad Saqib
Summary: This study synthesized a hapten-protein conjugate with copper nanoparticles (Hap-Car-BSA@CuNPs) for the determination of carbaryl, and successfully developed a novel method for monitoring carbaryl residues in flour samples using an electrochemical immunosensor. The detection range was 0.8-32.3 μg/kg with a limit of detection of 0.08 μg/kg.
Review
Chemistry, Analytical
Alina V. Geraskevich, Anna N. Solomonenko, Elena V. Dorozhko, Elena I. Korotkova, Jiri Barek
Summary: This review presents the application of modern electrochemical sensors for detecting ROS in biological objects over the past decade. It discusses the sensors materials, modifiers, as well as the comparative characteristics, advantages, disadvantages, possibilities, and limitations of the sensors.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Georgios Bountas, Vlastimil Vyskocil, Bohumil Kratochvil, Alena Michalcova, Anastasios Economou, Jiri Barek
Summary: Nitrophenols are important environmental pollutants due to their genotoxic and ecotoxic properties. A novel silver porous electrode was successfully used for the determination of micromolar concentrations of 2-nitrophenol, 2,4-dinitrophenol, and 2,4,6-trinitrophenol.
Article
Chemistry, Analytical
E. Dorozhko, E. Kazachinskaia, Y. Kononova, A. Zaikovskaya, J. Barek, E. Korotkova, E. Kolobova, P. Sheveleva, M. Saqib
Summary: In this study, silver nanoparticles (AgNPs) were conjugated with immunoglobulins G (IgG) through a passive adsorption method. The composition and properties of freshly prepared (Ab@AgNPs) and aged (Ab@AgNP/Ag2SNPs) conjugates were investigated using various methods. The state of the AgNPs in the conjugates changed during storage, with the newly prepared Ab@AgNPs containing metallic silver and the aged Ab@AgNP/Ag2SNPs having a metallic core coated with Ag2S. The conjugates were successfully tested in an electrochemical immunoassay, offering potential for prolonged use in commercial test systems for immunological studies.
Article
Chemistry, Analytical
Aqsa Aijaz, Daim Asif Raja, Farooq-Ahmad Khan, Jiri Barek, Muhammad Imran Malik
Summary: A colorimetric assay based on branched polyethyleneimine-conjugated silver nanoparticles (PEI-AgNPs) has been developed for the on-spot detection of ciprofloxacin (CIP) in the environment. The method exhibits high sensitivity, selectivity, and efficiency for the quantification of CIP in a linear dynamic range of 0.1-200 μM, with a limit of detection (LOD) of 0.038 μM and limit of quantification (LOQ) of 0.12 μM. The proposed method is capable of detecting CIP in complex samples and outperforms UV-Vis spectroscopy and UPLC in terms of performance.
Review
Chemistry, Analytical
Muhammad Saqib, Anna N. Solomonenko, Jirf Barek, Elena V. Dorozhko, Elena I. Korotkova, Shojaa A. Aljasar
Summary: Graphene composites have great potential for the determination of carbamates pesticides by electrochemical methods, offering advantages such as high sensitivity, selectivity, rapid detection, and low limit of detection.
ANALYTICA CHIMICA ACTA
(2023)
Article
Electrochemistry
Anna Ondrackova, Marie Stiborova, Helena Dracinska, Ludek Havran, Karolina Schwarzova-Peckova, Miroslav Fojta
Summary: This study investigated the redox and chemical/electrochemical reactions of Sudan I and its metabolites using boron doped diamond and basal plane pyrolytic graphite electrodes. The number and positions of hydroxy groups were found to affect the signal potentials. Basal plane pyrolytic graphite electrode showed better sensitivity than boron doped diamond electrode. Electrochemical assays could be used to monitor the transformation of Sudan I in biochemical studies, despite interference from excess NADPH.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Peter Cambal, Simona Baluchova, Andrew Taylor, Ludek Mika, Martin Vondracek, Zuzana Gedeonova, Pavel Hubik, Vincent Mortet, Karolina Schwarzova-Peckova
Summary: This study investigates the effects of vicinal crystal orientation, boron doping level, and surface termination on the electrical and electrochemical properties of boron-doped diamond electrodes. The results highlight the importance of boron content and superficial hydrogen in determining the conductivity and performance of the electrodes.
ELECTROCHIMICA ACTA
(2023)
Review
Electrochemistry
Jiri Barek, Petr Smejkal
Summary: The aim of this article is to show that modern voltammetric methods can still be useful in practical laboratories and to express ideas on what researchers and university teachers should do to initiate a renaissance of voltammetric methods in analytical laboratories.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Jiri Barek, Fabio Marques
Summary: This article provides an overview of the use of various types of amalgam electrodes for monitoring organic compounds. Amalgam electrodes, made by forming an amalgam between metal and liquid mercury, offer advantages such as a wide range of potential windows and high sensitivity. Different types of amalgam electrodes and their applications in determining organic compounds in various matrices are discussed. Metal solid amalgam electrodes are found to be promising alternatives to hanging mercury drop electrodes for electrochemical measurements.
MONATSHEFTE FUR CHEMIE
(2023)
Article
Chemistry, Analytical
Alba Civera, Sofiia Tvorynska, Maria Gamella, Rebeca M. Torrente-Rodriguez, Maria Pedrero, Patricia Galan-Malo, Luis Mata, Lourdes Sanchez, Jiri Barek, Jose M. Pingaron, Susana Campuzano, Maria D. Perez
Summary: A novel electrochemical bioplatform was developed for the determination of Pru du 6, one of the most abundant and allergenic almond proteins, in processed foods. The bioplatform combines the use of a sandwich immunoassay on magnetic beads with specific antibodies either unmodified or conjugated to horseradish peroxidase. The developed bioplatform showed good selectivity and sensitivity, with a detection limit of 0.12 ng mL-1 of Pru du 6. It could accurately determine Pru du 6 in raw dough and baked cookies with a protein concentration of 0.2 μg g-1, providing comparable results to ELISA technique.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Physical
J. Hrabovsky, M. Zelensky, J. Sladek, M. Zukerstein, J. Fischer, K. Schwarzova-Peckova, A. Taylor, M. Veis, S. Mandal, O. A. Williams, N. M. Bulgakova
Summary: A thorough study has been conducted on the conversion of sp3 to sp2 carbon in undoped and boron-doped diamond thin layers. It was found that the incorporation of boron atoms increased the infrared optical absorption and reduced the energy fluence required for carbon conversion. Raman spectroscopy was used to identify carbon conversion stages and optimize parameters for other infrared laser sources. Electrochemical measurements showed significant changes in parameters after the conversion of 10% of sp3 carbon to sp2 carbon.
APPLIED SURFACE SCIENCE
(2023)
