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
Physics, Applied
Jin Uk Gwon, Tae Hwan Jang, Min Su Kim, Tae Gyu Kim, Mun Ki Bae
Summary: A boron-doped diamond thin film was synthesized using the HFCVD method, and its surface shape, growth rate, bonding structure, and electrochemical properties were characterized using SEM, Raman spectroscopy, and cyclic voltammetry. The growth rate and crystal size of the film decreased with increasing boron doping concentration, and Raman analysis confirmed the bonding effects of boron on the diamond structure. Cyclic voltammetry analysis showed that the boron-doped diamond thin film had a wide potential window.
MODERN PHYSICS LETTERS B
(2022)
Article
Biochemistry & Molecular Biology
Magdalena Jakubczyk, Slawomir Michalkiewicz, Agata Skorupa, Kinga Krajcarz
Summary: This article investigates the electrochemical properties of methylisothiazolinone (MIT) and develops a new method for its determination. The method is conducted on a boron-doped diamond electrode and can detect the presence of MIT in household products without the need for separation steps.
Article
Engineering, Environmental
Hongru He, Pan Xu, Xi Wang, Shengqi Ma, Zhixiao Liu, Henan Peng, Daming Wang, Hongwei Zhou, Chunhai Chen
Summary: A novel TFN membrane was prepared by doping HPCSs nanoparticles in polyamide separating layer, showing superior OSN performance. The ridge-valley morphology on the membrane surface effectively increased the contact area between the membrane and the solvent, improving permeation capacity. The TFN-HPCSs-200 membrane exhibited high methanol permeation capacity and retention rate of RDB dye, as well as stable solvent resistance and long-term stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Wanlin Yang, Zejun Deng, Yijia Wang, Li Ma, Kechao Zhou, Libin Liu, Qiuping Wei
Summary: This paper discusses the synthesis and properties of porous boron-doped diamond (BDD) electrodes for electrocatalytic elimination of environmental organic pollutants. The porous BDD electrodes were synthesized using a hot filament chemical vapor deposition (HFCVD) system and their physicochemical properties, electrocatalytic reaction kinetics, and mass transfer were systematically studied. The results show that the porous BDD electrodes have a larger electroactive area, reduced charge transfer resistance, and enhanced mass transfer, leading to significantly higher pollutant removal efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Zhigang Lu, Lusheng Liu, Weichun Gao, Zhaofeng Zhai, Haozhe Song, Bin Chen, Ziwen Zheng, Bing Yang, Cong Geng, Jiyan Liang, Xin Jiang, Nan Huang
Summary: This study focuses on enhancing the production of radical species in the electrochemical advanced oxidation process (EAOP) by using a nano-porous boron-doped diamond (BDD) film. The results show that the nano-porous BDD film has improved electron transfer rate, large oxygen evolution potential, and increased generation of hydroxyl and sulfate radicals, leading to the effective purification of organic wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
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, Physical
Anna Dettlaff, Michal Sobaszek, Tomasz Klimczuk, Robert Bogdanowicz
Summary: Novel highly-oriented (111)-textured boron-doped diamond electrodes were fabricated via deuterium-rich microwave plasma CVD, showing high electro-chemical activity and stability. These electrodes exhibited improved boron dopant incorporation and activation, leading to enhanced electron transfer during electrochemical redox mediation, with potential applications as ultrasensitive electrodes for electrochemical analytics.
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)
Review
Electrochemistry
Vojtech Hrdlicka, Oleksandr Matvieiev, Tomas Navratil, Renata Selesovska
Summary: This review summarizes recent developments in the modification of boron-doped diamond electrodes (BDDEs) and their applications in various fields such as biosensing, electroanalysis, electrosynthesis, fuel cell construction, and CO2 reduction. The different modification procedures, including metal or metal oxide modifications and polymer modifications, are described. Additionally, the use of DNA, enzymes, and other biomolecules for specific sensing capabilities is discussed. These chemical modifications are critically compared to other strategies for BDDEs.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Mariola Brycht, Slawomira Skrzypek, Valentin Mirceski
Summary: In this study, a simple and easy-to-use method was developed for monitoring the level of FH residues retained on the peel surface of blueberries samples. This method includes the treatment of the BDDE surface and can be used as a rapid screening method for food safety control.
ANALYTICA CHIMICA ACTA
(2023)
Article
Engineering, Chemical
Haichao Li, Guoshuai Liu, Bo Zhou, Zejun Deng, Yijia Wang, Li Ma, Zhiming Yu, Kechao Zhou, Qiuping Wei
Summary: The use of periodic porous boron-doped diamond (PP-BDD) anodes improves the efficiency of electrochemical removal of perfluorooctanoic acid (PFOA) due to its higher electrochemical active surface area (EASA) and mass transfer efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Review
Chemistry, Analytical
Merve Yence, Ahmet Cetinkaya, Goksu Ozcelikay, S. Irem Kaya, Sibel A. Ozkan
Summary: Conductive boron-doped diamond (BDD) is a highly suitable material for electroanalytical studies due to its excellent material properties. This review provides an overview of the electrochemical properties of carbon-based BDD film electrodes and their electrochemical pretreatment process, and critically summarizes the available data in this field between 2015 and 2020.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Environmental
Liang Ying Ee, Qipeng Zhao, Jie Gao, Chit Kai Lim, Kai Xue, Sze Yuet Chin, Sam Fong Yau Li, Tai-Shung Chung, Shing Bor Chen
Summary: In this study, facile intercalation and functionalization of β-cyclodextrin onto layered double hydroxides have resulted in the formation of accessible hydroxyl functional groups and anions that exhibit strong sorption and host-guest interaction with boron. The modified LDH was employed to fabricate a polyamide-based thin-film nanocomposite membrane with high salt rejection and water permeance for brackish water, achieving a high boron rejection rate as well. This pioneering study provides valuable insights into the design of brackish water reverse osmosis membranes using macrocyclic molecules and inorganic layered nanomaterials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Lenka Benesova, Jan Klouda, Eva Blahova, Karel Nesmerak, Pavel Kocovsky, Jana Nadvornikova, Petr Bartak, Jana Skopalova, Karolina Schwarzova-Peckova
Summary: A simple electrochemical method for quantifying cholesterol in dairy products was evaluated in this study. The method showed close agreement with GC-MS and outperformed HPLC-UV in terms of performance.
Review
Chemistry, Analytical
Katarzyna Bialas, Despina Moschou, Frank Marken, Pedro Estrela
Summary: Biosensors have been widely studied as they offer the possibility of translating standard laboratory methods into small, portable devices. Enzymes are commonly used for determination purposes due to their high selectivity and sensitivity, but their poor shelf-life poses a limitation. This review explores the possibility of using other materials with enzyme-like activity as substitutes for enzymes in point-of-care biosensors. Metal and metal oxide nanoparticles are crucial components in enzyme-less catalytic sensors, but achieving high selectivity and sensitivity remains a challenge. By studying the properties of nanoparticle-based sensors, this review aims to identify the key factors determining their catalytic performance and bridge the gap between fundamental and applied research.
Article
Chemistry, Multidisciplinary
Amani M. Bamuqaddam, Saba A. Aladeemy, Mohamed A. Ghanem, Abdullah M. Al-Mayouf, Nouf H. Alotaibi, Frank Marken
Summary: This study demonstrates the chemical synthesis of two-dimensional mesoporous nickel/nickel (II) hydroxide nanoflakes and their high electrocatalytic activity for methanol oxidation.
Article
Biotechnology & Applied Microbiology
Frank Marken, Lina Wang, Yuanzhu Zhao, Zhongkai Li, Mandana Amiri, Hamideh Imanzadeh
Summary: Polymers of intrinsic microporosity (PIMs) can be processed from organic solvents to form glassy films or composite coatings. They can exhibit fluorescence or chemical activity and can incorporate other substances for sensing. The ease of producing uniform microporous films or composite films is related to molecular rigidity.
CURRENT OPINION IN CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Antonios Keirouz, Yasemin L. L. Mustafa, Joseph G. G. Turner, Emily Lay, Ute Jungwirth, Frank Marken, Hannah S. S. Leese
Summary: Conductive polymeric microneedle arrays have the potential to be used as minimally invasive monitoring tools in biodevices and wearables. However, previous efforts on microneedle electrodes have been limited to metallic substrates, which lack biological stability and are costly to manufacture. In this study, additive manufacturing is used to fabricate acrylic-based microneedle devices, which are then coated with conductive polypyrrole and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) films. These entirely polymer-based microneedle arrays act as dry conductive electrodes without the need for a metallic seed layer. Two coating methods, in situ polymerization and drop casting, are utilized to achieve conductivity. The fabricated microneedles penetrate porcine skin grafts without compromising their conductivity or morphology, and the coatings demonstrate durability over multiple penetration cycles. The non-cytotoxic nature of the conductive microneedles is confirmed using human fibroblast cells. This fabrication strategy offers a promising approach to manufacturing polymer-based conductive microneedle surfaces for biosensing applications.
Article
Chemistry, Analytical
Haotian Chen, Lina Wang, Frank Marken, Richard G. Compton
Summary: Current-time transients resulting from potential step measurements on electrodes covered with thin films are commonly used to differentiate between the diffusive transport mechanisms of the electroactive species, either through partitioning into membranes and subsequent transport or solely through pinholes. Machine learning (ML) is employed to perform user independent analysis on the transients to determine the most probable mechanism. The limitations and strengths of this approach are critically discussed.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Review
Chemistry, Physical
Zhongkai Li, Klaus Mathwig, Omotayo A. Arotiba, Luthando Tshwenya, Evaldo Batista Carneiro Neto, Ernesto Chaves Pereira, Frank Marken
Summary: Ionic diodes have been widely studied in various systems including gel interfaces, nanopores and channels, and fluidic devices. The understanding of diode function and time constant is crucial for their applications. At frequencies higher than the diode time constant, the polarization mechanism is too slow, while at lower frequencies, irreversible ion flow induces the switching of the diode between two resistive states. This irreversible flow allows for energy conversion and can be used for AC-desalination and electroosmotic water harvesting.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Evaldo Batista Carneiro-Neto, Zhongkai Li, Ernesto Pereira, Klaus Mathwig, Philip J. J. Fletcher, Frank Marken
Summary: Ionic diode based devices or circuits, such as electroosmotic pumps or desalination processes, can be applied. By asymmetrically coating Aquivion ionomer over a Teflon film with a laser-drilled microhole, a cationic diode with a rectification ratio of 10-20 can be obtained. Experimental data is characterized using steady-state voltammetry, chronoamperometry, and electrochemical impedance spectroscopy, and computer simulation is used to reproduce and rationalize the diode switching process.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Zhongkai Li, John P. Lowe, Philip J. Fletcher, Mariolino Carta, Neil B. Mckeown, Frank Marken
Summary: This study investigates the tuning of electroosmotic water flow in molecularly rigid polymers with internal charges by adjusting the charge density. The results showed that the number of water molecules transported per anion increased with a lower degree of methylation. The study also demonstrated net water transport in a coupled anionic diode circuit.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Babatunde A. Koiki, Charles Muzenda, Kehinde D. Jayeola, Minghua Zhou, Frank Marken, Omotayo A. Arotiba
Summary: This article introduces a simple and clean method for the production of sulfate radicals for water treatment, namely electrochemical and photoelectrochemical activation techniques. The photoelectrochemical activation method shows great potential as it effectively treats various pollutants by using highly reactive oxidizing species. The article provides a detailed account of the applications of sulfate radical enhanced photoelectrochemical treatments for water contaminated with organics.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Guru Prasanna, Hoang-Duy P. Nguyen, Steve Dunn, Akalya Karunakaran, Frank Marken, Chris R. Bowen, Bao-Ngoc T. Le, Hoang-Duy Nguyen, Thuy-Phuong T.pham
Summary: A new low energy physical technique using mechanical stirring and BaTiO3 particles has been discovered to efficiently remove dye molecules from solution, providing a new insight into environmental remediation processes.
Editorial Material
Chemistry, Physical
Frank Marken
Summary: The electrochemical conversion of carbon dioxide into high-value multicarbon products is desirable but complex in process design. Water activity may play a key role in tuning product yields in this reaction.
Article
Materials Science, Multidisciplinary
Thom R. Harris-Lee, Enrico Della Gaspera, Frank Marken, Jie Zhang, Cameron L. Bentley, Andrew L. Johnson
Summary: Aerosol-assisted chemical vapor deposition (AACVD) was used to fabricate highly nanostructured mixed anatase-rutile phase TiO2 using new and bespoke precursors. The precursor syntheses involved two steps and the suitability for AACVD was assessed using thermogravimetric analysis. The resulting TiO2 films showed exceptional OH- oxidation performance and promise for use in photoanodes for water splitting applications.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Physical
Jose L. Bott-Neto, Thiago S. Martins, Osvaldo N. Oliveira, Frank Marken
Summary: This study presents a PEC platform based on TiO2 electrodeposition onto printed carbon electrodes, which eliminates the need for heat treatment. The resulting electrodes show higher photocurrents and improved sensitivity and selectivity for detecting ascorbic acid. The use of brookite TiO2 nanocrystals allows for the production of miniaturized devices for sensitive, selective PEC (bio)sensors.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Budi Riza Putra, Ulfiatun Nisa, Rudi Heryanto, Munawar Khalil, Fitri Khoerunnisa, Aga Ridhova, Yudi Nugraha Thaha, Frank Marken, Wulan Tri Wahyuni
Summary: A highly selective electrochemical sensor based on a molecularly imprinted polymer (MIP) was developed for uric acid detection in the presence of dopamine as an interference molecule. This sensor showed excellent analytical performance, good reproducibility, and stability, demonstrating highly selective detection of uric acid in the presence of interfering species. The sensor is expected to be used in early-stage disease diagnosis.
Article
Chemistry, Multidisciplinary
Hana Safitri, Wulan Tri Wahyuni, Eti Rohaeti, Munawar Khalil, Frank Marken
Summary: A modified glassy carbon electrode based on a synthesized graphene oxide gold nanorod decorated composite was developed for sensitive electrochemical sensing of uric acid. The sensor showed good linearity, low detection limit, and quantitation limit, as well as superior stability, reproducibility, and selectivity against interferents.