Article
Chemistry, Inorganic & Nuclear
Arefeh Mohammadnavaz, Hadi Beitollahi, Sina Modiri
Summary: We developed a new electrochemical sensing platform for detecting L-Cysteine using a modified carbon paste electrode with multi-walled carbon nanotubes-Co3O4 nanocomoisite/benzoyl ferrocene/ionic liquid. The nanocomposite was fabricated through a facile hydrothermal protocol and characterized using various techniques. The modified electrode exhibited excellent catalytic activity towards L-Cys oxidation, as demonstrated by cyclic voltammetry. The sensor had a narrow detection limit, broad linear dynamic range, and good sensitivity.
INORGANICA CHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Al-Montaser Bellah H. Ali, Azza H. Rageh, Fatma A. M. Abdel-aal, Abdel-Maaboud I. Mohamed
Summary: Patients receiving anticancer drugs may experience loss of sexual desire and erectile dysfunction as adverse effects. It is important to recognize possible pharmacokinetic interactions when administering drugs to cancer patients. A sensitive sensor using carbon paste electrode modified with titanium dioxide nanoparticles and multi-walled carbon nanotubes was designed for the simultaneous determination of the anticancer drug avanafil and doxorubicin in rabbit plasma samples. The modified electrode showed improved sensitivity and separation between the oxidation peaks of AVN and DOX. The method was effective for analyzing AVN in real rabbit plasma samples and monitoring the possible pharmacokinetic interactions between AVN and DOX.
MICROCHEMICAL JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Sina Vakyly, Hamid Sedighian, Zahra Jahromi, Abolfazl Jahangiri, Raheleh Halabian, Anita Rezaei, Farzane Keshmiri
Summary: In this study, a sensitive and selective sensor based on a gold nanoparticle/multi-walled carbon nanotube modified electrode was developed for the detection of Staphylococcus aureus alpha-toxin. The sensor exhibited high sensitivity and repeatability, and was able to accurately quantify the concentration of the toxin in serum samples.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Electrochemistry
Mehrnaz Ebrahimi, Mahya Ghorbani, Parviz Norouzi, Ehsan Ghods Rad
Summary: The study successfully determined Ofloxacin using a carbon paste electrode modified by MWCNT@Sm(OH)(3) nanocomposite, achieving high detection sensitivity and selectivity.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Analytical
Tiantian Wu, Donghua Xia, Junjun Xu, Cuizhu Ye, Dong Zhang, Danwen Deng, Jinsheng Zhang, Ganhui Huang
Summary: This study introduced a sensor based on silanized multi-walled carbon nanotubes and gold nanoparticles for the detection of inorganic phosphate in freshwater. The sensor showed a short response time, good recovery rates, and an efficient strategy for phosphate monitoring in the environment field.
MICROCHEMICAL JOURNAL
(2021)
Article
Engineering, Environmental
Yang Li, Cai-Yan Gao, Xin-Heng Fan, Lian-Ming Yang
Summary: This study developed a high-performance polypyrrole (PPy)/single-walled carbon nanotube (SWCNT) composite material through in-situ electrochemical polymerization of pyrrole on a pre-fabricated SWCNT membrane electrode. By adopting pulse galvanostatic electropolymerization (PGEP) technology for interface engineering, the TE performance of the composite film was significantly improved, achieving excellent power factor and figure of merit.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Ewelina Skowron, Kaja Spilarewicz-Stanek, Dariusz Guziejewski, Kamila Koszelska, Radovan Metelka, Sylwia Smarzewska
Summary: The analytical performance of clay paste electrode and graphene paste electrode was compared using square wave voltammetry and cyclic voltammetry methods for the determination of paracetamol. The influence of pH and SWV parameters on the results was investigated.
Article
Chemistry, Analytical
Siham Amra, Mustapha Bourouina, Saliha Bourouina Bacha, Didier Hauchard
Summary: By constructing a carbon paste nano-structured sensor, a highly sensitive and low-cost quantification of diclofenac has been achieved. The sensor shows maximum peak current intensity in H2SO4 0.5 mol L-1 and provides a large quantification range, demonstrating excellent analytical performance.
Article
Chemistry, Analytical
Mahmoud AbdAllah, A. A. Hathoot, M. Abdel-Azzem
Summary: This study investigated the electrochemical oxidation of Thioctic Acid (TA) on a Carbon Paste Electrode (CPE) modified with copper-cobalt nanostructures and poly (1,5-Diaminonaphthalene) using square-wave voltammetry and cyclic voltammetry. The voltammetric sensor showed sensitivity to TA oxidation and the effects of deposition cycles, electro-polymerization, scan rate, and pH were optimized. The sensor exhibited good identification capabilities for TA with a linear response range of 0.6 µM to 150 µM and a detection limit of 0.48 µM. The oxidation of TA was controlled by the adsorption process. The proposed sensor and method were successfully used for TA determination in real samples.
Article
Chemistry, Analytical
Denis Krivic, Nives Vladislavic, Masa Buljac, Ivana Skugor Roncevic, Marijo Buzuk
Summary: The electrochemical behavior of gallic acid on a single-walled carbon nanotubes-modified electrode was investigated using cyclic voltammetry and chronoamperometry. Diffusion phenomena were found to be responsible for the overall current signal, and these phenomena were divided into four processes occurring in thin-layer or solution. The effects of scan rate, gallic acid concentration, and layer thickness on the voltammetric signal were discussed based on the diffusion processes in the thin-layer.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Ceren Yildiz, Dilek Eskikoy Bayraktepe, Zehra Yazan, Muserref Onal
Summary: This study presents a electrochemical sensor based on pencil graphite electrode and its application in the quantification of heavy metals. The sensor has a high conductive surface area, capable of producing high signals, making it more suitable for electrochemical analysis compared to unmodified electrodes.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Sukanya, B. E. Kumara Swamy, J. K. Shashikumara, S. C. Sharma
Summary: A simple, novel, and cost-effective modified carbon paste electrode was fabricated for the detection of paracetamol. The electrode exhibited excellent electrocatalytic activity and fast electron transfer rate, resulting in accurate detection of paracetamol.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Elif Tuzun, Gulten Atun
Summary: In this study, a titania-modified carbon paste electrode was prepared and used for the determination of trace amounts of hazardous Hg(II), Cu(II), and Pb(II) ions. The electrode exhibited excellent sensing performance with a low detection limit for each ion. In ternary solutions, the electrode showed higher sensitivity towards Hg(II) and Pb(II) ions. Therefore, the titania-modified carbon paste electrode is a promising sensor for the determination of hazardous heavy metal ions.
Article
Chemistry, Analytical
Jongwan Choi, Jiwon Min, Jason Sahngwook Kim, Jung Hyun Park, Suwyoung Ly
Summary: This study compared the performance of a bismuth immobilized carbon nanotube paste electrode (BCE) with a carbon nanotube paste electrode (CE) for detecting epinephrine (EP). The BCE was found to be more efficient. The optimized conditions, including 0.3 V square-wave stripping voltammetry, 400 Hz frequency, -0.8 V initial potential, and 0.015 V increment potential, were applied to analyze a carp's front fin. The results showed that the BCE had a miniscule working electrode and a very low detection limit, and successfully analyzed the in vivo muscle's chronoamperometric nerve currents. These findings have potential applications in medical diagnostics, pharmaceuticals, interface controllers, and other fields.
Article
Biochemistry & Molecular Biology
Juliana Costa Rolim Galvao, Mayara da Silva Araujo, Maiyara Carolyne Prete, Vanildo Leao Neto, Luiz Henrique Dall'Antonia, Roberto Matos, Cesar Ricardo Texeira Tarley, Roberta Antigo Medeiros
Summary: A novel electrochemical assay for determining 17-beta-estradiol (E2) was proposed in this study. By modifying a glassy carbon electrode (GCE) with a nanocomposite consisting of alpha-Fe2O3 nanoparticles supported on carbon nanotubes (CNTs), the detection of E2 was enhanced and electrode surface fouling was prevented. The optimized experimental conditions allowed for accurate and fast determination of E2 in a wide concentration range.
Article
Chemistry, Multidisciplinary
Anas El Attar, Sanaa Chemchoub, Mamadou Diallo Kalan, Larbi Oularbi, Mama El Rhazi
Summary: Copper(II) hydroxide and copper oxide nanostructures were deposited on functionalized multi-walled carbon nanotubes/polypyrrole, forming a highly efficient electrocatalyst for ethanol oxidation in alkaline medium. The introduction of functionalized multi-walled carbon nanotubes enhanced the electric properties of the nanocomposites and provided a large active surface area. The prepared electrocatalyst exhibited high performance (7 mA cm(-2) at 0.85 V vs Ag/AgCl) and good stability (over 1800 s) towards ethanol oxidation in a solution of 0.1 M NaOH containing 0.2 M of ethanol.
FRONTIERS IN CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Selin Sariyer, Arpita Ghosh, Sevde Nazli Dambasan, El Mahdi Halim, Mama El Rhazi, Hubert Perrot, Ozlem Sel, Rezan Demir-Cakan
Summary: This study investigates the electrochemical behavior of an organic electrode based on a highly aromatic polymer in aqueous electrolytes containing multivalent ions. The results show that the organic electrode exhibits excellent electrical conductivity, prolonged cycle life, and high discharge capacity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
El Mahdi Halim, Rezan Demir-Cakan, Hubert Perrot, Mama El Rhazi, Ozlem Sel
Summary: This study investigates the interfacial ion exchange of a composite electrode made of carbon nanotube/poly(ortho-phenylenediamine) (CNT/PoPD) in a 1M NaCl aqueous electrolyte. Electrogravimetric analyses based on EQCM and electrogravimetric impedance spectroscopy were utilized to reveal the kinetics and proportions of different ion species in the charge compensation mechanism.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Ouissal Salhi, Tarik Ez-zine, Larbi Oularbi, Mama El Rhazi
Summary: Poly 1,8-Diaminonaphtahlene/cysteine combined with carbon black nanoparticles is proposed as an excellent sensor for the detection of nitrite ions. The electrocatalyst was prepared through a drop-casting method and characterized using various techniques. The sensor exhibited outstanding electroactivity and detection performance for nitrite ions.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ouissal Salhi, Tarik Ez-Zine, Larbi Oularbi, Mama El Rhazi
Summary: A novel electrochemical sensor based on conducting polymer and multi-walled carbon nanotubes was developed for the detection of nitrite ions. The sensor exhibited excellent electro-catalytic activity and a low detection limit for nitrite. The hybrid material poly 1,8-DAN/f-MWCNT showed improved electronic transfer due to the synergic effect between the properties of poly 1,8-DAN and f-MWCNT.
FRONTIERS IN CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Abdelmoheiman Zakaria Benbouzid, Maurilio Pereira Gomes, Isolda Costa, Oumaima Gharbi, Nadine Pebere, Jesualdo Luiz Rossi, Mai T. T. Tran, Bernard Tribollet, Mireille Turmine, Vincent Vivier
Summary: This study investigates the electrochemical impedance diagrams of a Mg electrode in a sodium sulfate solution at different pH values. A comprehensive model, independent of the pH range, is proposed to explain the singular behavior of Mg at low pH values, taking into account the presence of two adsorbed intermediates. The study also reveals that in acidic media, both the double layer and cathodic partial reaction should be considered, while at higher pH values, the oxide/hydroxide layer significantly slows down the magnesium corrosion rate.
Article
Engineering, Multidisciplinary
Maurilio Pereira Gomes, Samantha Michelle Gateman, Isolda Costa, Oumaima Gharbi, Kieu Ngo, Jesualdo Luiz Rossi, Mireille Turmine, Vincent Vivier
Summary: A new experimental setup for local electrochemical impedance spectroscopy (LEIS) has been developed, allowing for measurements over a wide frequency range, including the low frequency domain. The setup includes improved signal treatment and a unique three-electrode LEIS probe, enabling reliable and time-sensitive measurements in various fields.
Article
Biochemistry & Molecular Biology
David Ausin, Jose L. Trenzado, Mireille Turmine, Luis M. Varela, Oscar Cabeza, Elisa Gonzalez Romero, Luisa Segade
Summary: This study investigates the characterization of two protic ionic liquids (PILs), EAN and PAN, and explores the influence of inorganic nitrate salt addition on their physical properties and electrochemical potential window (EPW). Experimental measurements were conducted on mixtures of EAN or PAN with different nitrate salts at varying temperatures, and the results showed that the influence of the salt addition was mainly determined by the characteristics of the metal cations. Predictive equations were also proposed based on the experimental data to describe the physical properties of the mixtures. Additionally, the electrochemical results revealed a general order of EPW for both PILs, although exceptions were observed under certain measurement conditions and mixture properties.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Energy & Fuels
Nesrine Chaabene, Kieu Ngo, Mireille Turmine, Vincent Vivier
Summary: The objective of this work is to develop a membraneless microfluidic redox flow battery (RFB) using C(2)mimTFSI as support electrolyte with Quinone (Q) as negolyte and iron chloride (FeCl2) as posolyte. The electrochemical properties and performance of the microbattery were characterized through polarization curve and cyclic voltammetry. The proof-of-concept of the system showed an open circuit potential of 0.6 V and a current density ranging from 0.3 to 0.65 mA.cm(-2) for total flow rates of 10 to 20 mu L.min(-1). A maximum power of 40 mu Wcm (2) was obtained with this microbattery.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Chemistry, Physical
Samantha Michelle Gateman, Oumaima Gharbi, Hercilio Gomes de Melo, Kieu Ngo, Mirelle Turmine, Vincent Vivier
Summary: This article presents different techniques for experimentally determining the interfacial capacitance of an electrode for supercapacitor efficiency quantification. It discusses the apparent differences between the values obtained from cyclic voltammetry and electrochemical impedance spectroscopy analysis and the errors that can result from using constant phase element (CPE) analysis.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Electrochemistry
Ouissal Salhi, Larbi Oularbi, Tarik Ez-zine, Anas El Attar, Sanaa Chemchoub, Abdellah Aaddane, Mama El Rhazi
Summary: Bisphenol A (BPA), widely used in the production of polycarbonates and plastics, poses a serious threat to human health. This study proposes a smartphone-assisted electrochemical sensor based on Mg0.5Co2.5(PO4)(2) and carbon black (CB) modified screen-printed electrode (SPE) for rapid and sensitive detection of BPA in food and water. The sensor exhibits excellent catalytic behaviors, a low detection limit, good reproducibility, stability, and interference-free ability. It also shows satisfactory recoveries for BPA detection in real water samples.
Article
Chemistry, Physical
Yuelin Xie, Antoine Miche, Vincent Vivier, Mireille Turmine
Summary: In this study, amorphous and nanocrystalline Ni-Co alloys were deposited on FTO glass using ethylammonium nitrate (EAN), a protic ionic liquid (PIL). The physicochemical properties of EAN with Ni2+ and Co2+ salts were investigated, as well as the electrochemical behavior of these metal cations in the PIL in an aerated atmosphere. It was found that the redox reactions of Ni2+ and Co2+ were not reversible due to the formation of an oxide film. However, nanocrystalline Ni-Co alloys with different atomic ratios were obtained when electrodeposition was performed in an oxygen-free environment at 60 degrees C, depending on the deposition potential and ion concentration in solution. The electrocatalytic properties of these alloys towards the hydrogen evolution reaction (HER) were also studied.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
N. Chaabene, J. Zhang, M. Turmine, E. Kurchavova, V. Vivier, F. Cuevas, M. Mateos, M. Latroche, J. Monnier
Summary: This work investigates the physicochemical properties of different ionic liquids (ILs) and their mixtures with acids or bases, which have the potential to be used as electrolytes in protonic batteries. The electrochemical properties of these ILs are studied using an AB(5)-type compound as the negative electrode in a half-cell configuration. The results show that [Pyrr][Ac] IL exhibits a discharge capacity of 221 mAh/g at a low charge/discharge overpotential, and stable cycling performance with an enlarged electroactivity window of 2.2 V compared to KOH.
JOURNAL OF POWER SOURCES
(2023)
Article
Engineering, Environmental
Rajaa Mouratib, Larbi Oularbi, Nezha Achargui, Mohammed El Krati, Saad Alami Younssi, Soufiane Tahiri, Mama El Rhazi
Summary: This study developed a new and simple electrochemical sensor for the detection of Bisphenol A (BPA) using drinking water treatment sludge (DWTS). The sensor showed a linear response in the concentration range of 1-100 mu M, with a low limit of detection of 0.1 mu M. The sensor was successfully used for the detection of BPA in baby pacifier samples.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Katerina Skopalova, Itana Nusa Bubanja, Dragomir Stanisavljev, Nikola Cvjeticanin, Vera Kasparkova, Eliska Dad'ova, Erika Pavlikova, Marek Koutny, Marija Gizdavic-Nikolaidis, Petr Humpolicek
Summary: This study compares the biological properties of PANI prepared by different synthesis methods and oxidizing agents, which improves its potential applications in the biomedical field.
Article
Materials Science, Multidisciplinary
Hui-Ping Li, Cai-Yan Gao, Zhi-Ping Chen, Xin-Heng Fan, Lian-Ming Yang
Summary: In this study, a novel type of D-A non-fused-ring copolymers was designed and synthesized to overcome the trade-off relationship between electrical conductivity and Seebeck coefficient in organic semiconductors. The incorporation of fluorine atoms into the polymer backbone effectively increased the ordered degree of molecular stacking and improved both the electrical conductivity and Seebeck coefficient. The bimodal orientation of polymers played a crucial role in decoupling the correlation between electrical conductivity and Seebeck coefficient.
Article
Materials Science, Multidisciplinary
Mansour A. S. Salem, Amjad Mumtaz Khan, Hatem A. M. Saleh, Khalil M. A. Qasem, Mizna Ahmed, Aadil Shafi Bhat, Abdulaziz Abdullah Qasem Ali, Younes S. A. Ghanem, Ali Alrabie, Abdel-Basit Al-Odayni, Waseem Sharaf Saeed, Basheer Al-Anesi
Summary: This research focuses on the versatile substance, polyaniline/layered double hydroxide (PANI@Nd-Co/LDH), under solvothermal conditions. A thorough analysis of its structure and morphology was conducted using various analytical methods. The findings showed that PANI@Nd-Co/LDH exhibited highly sensitive and specific fluorescence detection of Pb(II) and Al(III), outperforming other heavy metal ions. The sensor demonstrated a turn-off fluorescence response for Pb(II) ions and a turn-on fluorescence response for Al(III) ions. The minimum detectable limits (MDL) were determined to be 9.6 nM for Pb(II) and 220 nM for Al(III). PANI@Nd-Co/LDH could be easily regenerated and reused for multiple cycles. The detection mechanisms involved the inner filter effect (IFE) for Pb(II) and the chelation-enhanced fluorescence (CHEF) effect for Al(III). These results highlight the excellent potential of PANI@Nd-Co/LDH in the detection and recognition of Pb(II) and Al(III) ions.
