Article
Biochemistry & Molecular Biology
Jose M. R. Flauzino, Rafaela C. S. Peres, Livia M. Alves, Jussara G. Vieira, Julia G. dos Santos, Ana G. Brito-Madurro, Joao M. Madurro
Summary: Alicyclobacillus acidoterrestris, an acidophilic and thermophilic bacterium found in soil, can affect the quality of fruit juice. This study presents an electrochemical genosensor for detecting A. acidoterrestris, which has potential applications in the juice production chain.
BIOELECTROCHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Subhasis Mahari, Sonu Gandhi
Summary: A novel rGO/FTO electrode was fabricated to explore the interaction between Salmonella serovars and specific antibodies. The electrode was characterized using various methods and optimized for parameters. The developed immunosensor successfully detected Salmonella in meat and fecal samples.
BIOELECTROCHEMISTRY
(2022)
Article
Food Science & Technology
Yu Tian, Xueke Li, Rui Cai, Kang Yang, ZhenPeng Gao, Yahong Yuan, Tianli Yue, Zhouli Wang
Summary: In this study, a new method was proposed to detect A. acidoterrestris in fruit juices by combining aptamer and antibody with magnetic nanoparticles and fluorescence detection. The detection limit of the established method was 103 CFU/mL, and the entire process was completed within 90 minutes.
Review
Chemistry, Analytical
S. Meenakshi, R. Rama, K. Pandian, S. C. B. Gopinath
Summary: This review discusses the electrochemical methods for the quantitative determination of MTZ and similar drugs, highlighting the advantages and disadvantages of various electrode materials under different experimental conditions, and explores the opportunities and challenges in developing new detection limits and standardizing experimental protocols.
MICROCHEMICAL JOURNAL
(2021)
Article
Polymer Science
Unchalee Kongintr, Benchaporn Lertanantawong, Chamras Promptmas
Summary: In this study, a label-free electrochemical biosensor for reliable detection of serum homocysteine (Hcy) was developed using a molecularly imprinted polymer (MIP) and nanocomposite. The Hcy-MIP biosensor showed high sensitivity, with a linear response range of 5.0 to 150 μM and a limit of detection of 1.2 μM. It demonstrated low cross-reactivity with other compounds and achieved good recoveries and repeatability. This novel biosensor offers a new and effective method for Hcy assay compared to existing techniques.
Article
Chemistry, Multidisciplinary
Nemah Abu Shama, Suleyman Asir, Ilgim Gokturk, Fatma Yilmaz, Deniz Turkmen, Adil Denizli
Summary: The sensitive detection of cortisol by an electrochemical sensor based on silver nanoparticle-doped molecularly imprinted polymer was successfully improved. The method for cortisol detection in both aqueous solution and biological samples using molecularly imprinted poly(hydroxyethyl methacrylate-N-methacryloyl-(l)-histidine methyl ester)-coated pencil graphite electrodes modified with silver nanoparticles (AgNPs) was developed. The synthesized electrode showed good electrocatalytic activity and a low limit of detection for cortisol in the linear concentration range.
Review
Chemistry, Analytical
Ersin Demir, Hulya Silah, Bengi Uslu
Summary: This study reviews the electrochemical methods based on electrode modification with phthalocyanines and discusses their sensor applications in the determination of drugs, pesticides, organic materials, and metals.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Veronica Anastasoaie, Ovidiu Teodor Matica, Cecilia Lete, Raluca Isopescu, Vesna Miskovic-Stankovic, Eleonora-Mihaela Ungureanu
Summary: Previous studies have demonstrated the complexing properties of 2-(azulen-1-yldiazenyl)-5-phenyl-1,3,4-thiadiazole (T) towards heavy metals (HMs) in solution. T can also be attached to electrode surfaces to form chemically modified electrodes (T-CMEs). The films of T-CMEs exhibited insulating properties with a thickness of approximately 10 μm, an active surface area about 6 times larger than the geometrical one, and a conductivity of about 10(-6) S/cm. Voltammetric techniques revealed the reversible anodic and cathodic redox CV peaks for the polymer, while spectroelectrochemistry showed intensified charge transport through polarons due to the anodic polarization of the film.
Article
Chemistry, Applied
A. B. Abdallah, Eslam A. Ghaith, Wael I. Mortada, Ahmed Fathi Salem Molouk
Summary: In this study, an electrochemical sensor based on carbon paste electrode and molecularly imprinted polymers was constructed for in situ detection of sodium dehydroacetate (SDA) in food. The sensor exhibited excellent selectivity, precision, and stability, and was successfully applied to determine SDA in strawberry samples.
Article
Electrochemistry
Francisco Martinez-Rojas, Christian Espinosa-Bustos, Galo Ramirez, Francisco Armijo
Summary: The electrochemical behavior of chlorpromazine (CPZ) at different pH values was investigated using a fluorine-doped tin oxide (FTO) electrode. Various techniques, including cyclic voltammetry, square-wave voltammetry, and electrochemical impedance spectroscopy, were employed to understand the oxidation mechanism of CPZ on the FTO electrode. The metabolite chlorpromazine sulfoxide (CPZ-SO) was identified as the major oxidation product using mass spectrometry (MS). The developed electroanalytical method exhibited good sensitivity and stability, making it suitable for quality control and quantification of pharmaceutical formulations and samples with environmentally relevant concentrations.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Patricia Rebelo, Joao G. Pacheco, Iuliia V. Voroshylova, Andre Melo, M. Natalia D. S. Cordeiro, Cristina Delerue-Matos
Summary: In this study, an electrochemical molecularly imprinted polymer (MIP) sensor for the detection of ATV in water samples was developed. Computational studies were conducted to select a suitable functional monomer and investigate the template-monomer interaction. The sensor exhibited high sensitivity and selectivity, and was successfully applied in spiked water samples.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Fengxian Gao, Jingyao Song, Zhenying Xu, Liang Xu, Yurong Guo, Lei Miao, Xiliang Luo
Summary: The study presents the design of an all-polymer flexible film electrode for highly sensitive dopamine detection, showcasing superior mechanical properties and electrochemical stability, suitable for various deformations with great potential in flexible electrochemical sensor applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Shin-ichi Naya, Hisayoshi Yoshioka, Hiroaki Tada
Summary: In this study, Sn nanoparticles generated on fluorine-doped tin oxide act as an efficient electrocatalyst for the CO2 reduction reaction, allowing for the stable production of synthetic gas from water and carbon dioxide. The addition of ammonium ions significantly enhances the reaction rate.
CHEMICAL COMMUNICATIONS
(2021)
Article
Biotechnology & Applied Microbiology
Nemah Abu Shama, Suleyman Asir, Mehmet Ozsoz, Ilgim Gokturk, Deniz Turkmen, Fatma Yilmaz, Adil Denizli
Summary: A molecularly imprinted polymer-based pencil graphite electrode sensor, modified with gold nanoparticles, was used to detect dopamine in the presence of other biochemical compounds. The pulse voltammetry methods showed the highest response. The study successfully differentiated dopamine from other biomolecules using overlapping voltammograms and obtained accurate calibration curves within a high sensitivity detection limit range.
BIOENGINEERING-BASEL
(2022)
Article
Chemistry, Analytical
Han-Wei Chang, Chien-Lin Chen, Yan-Hua Chen, Yu-Ming Chang, Feng-Jiin Liu, Yu-Chen Tsai
Summary: Nanostructured gold was successfully prepared on a bare Au electrode using electrochemical deposition, providing more active sites for efficient electrocatalytic reactions of organophosphorus pesticide. The nanostructured gold-modified electrode showed outstanding performance in methyl parathion sensing and pesticide residue detection in real samples.
Article
Pharmacology & Pharmacy
Hui Ling Ma, Ana Carolina Urbaczek, Fayene Zeferino Ribeiro de Souza, Claudia Bernal, Janice Rodrigues Perussi, Emanuel Carrilho
Summary: This study developed a microchip to generate constant shear stress for investigating the efficacy of HyPDT on HUVECs. The microchip showed its potential in promoting the release of VEGF and inducing cell damage and death under shear stress, suggesting its importance in evaluating the therapeutic outcome in preclinical tests.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2023)
Article
Engineering, Environmental
Andressa J. A. Simoes, Aline R. Doria, Danielle S. Vieira, Luciane P. C. Romao, Giancarlo R. Salazar-Banda, Katlin I. B. Eguiluz
Summary: This study investigated the performance of a 3D mixed metal oxide anode produced by hybrid heating using microwaves in the electrochemical oxidation of ciprofloxacin. Compared to a 2D anode, the 3D anode showed superior electrocatalytic properties due to its larger surface area. The microfluidic flow-through reactor demonstrated the lowest energy consumption and could be a promising option for degrading recalcitrant organic compounds like ciprofloxacin.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Chemical
Leandro R. Prado, Renan T. Figueiredo, Ronaldo S. Silva, Cristiano T. Meneses, Flavia M. R. Mendonca, Gustavo R. Borges, Claudio Dariva, Elton Franceschi, Giancarlo R. Salazar-Banda, Silvia M. Egues
Summary: Mesoporous titanium dioxide particles (TiO2) were synthesized through reactive precipitation using the supercritical anti-solvent (SAS) technique with carbon dioxide and the ionic liquid (IL) 1-methyl-3-octylimidazolium bis[trifluoromethylsulfonyl] imide, [C(8)mim][NTf2]. The particles exhibited anatase and brookite crystalline phases, with brookite peaks more pronounced in samples synthesized with the IL. The TiO2 particles had high surface area, controlled porosity, narrow pore size distribution, high thermal stability, and spherical morphology. The particle size decreased with the use of the IL and increased with a higher precursor/alcohol ratio.
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Edmundo S. Valerio Neto, Caio V. S. Almeida, Haoliang Huang, Andrea E. E. Russell, Katlin I. B. Eguiluz, Giancarlo R. R. Salazar-Banda
Summary: The synthesis of Pt-Rh alloy nanowires without surfactants or templates was achieved by chemical reduction at room temperature. The Pt/C nanowires and Pt-Rh/C nanowires-nanoparticles catalysts were characterized and found to be more active for ethanol oxidation than the commercial Pt/C reference catalyst. The Pt-Rh/C nanowires also showed a higher specific activity compared to Pt/C nanowires and Pt/C reference catalysts after chronoamperometric tests.
Article
Biochemistry & Molecular Biology
Ivana F. Rosa, Ana P. B. Pecanha, Tabata R. B. Carvalho, Leonardo S. Alexandre, Vinicius G. Ferreira, Lucas B. Doretto, Beatriz M. Souza, Rafael T. Nakajima, Patrick da Silva, Ana P. Barbosa, Leticia Gomes-de-Pontes, Camila G. Bomfim, Glaucia M. Machado-Santelli, Antonio Condino-Neto, Cristiane R. Guzzo, Jean P. S. Peron, Magaiver Andrade-Silva, Niels O. S. Camara, Anali M. B. Garnique, Renata J. Medeiros, Fausto K. Ferraris, Leonardo J. G. Barcellos, Jose D. Correia-Junior, Jorge Galindo-Villegas, Monica F. R. Machado, Angela Castoldi, Susana L. Oliveira, Camila C. Costa, Marco A. A. Belo, Giovane Galdino, German G. Sgro, Natalia F. Bueno, Silas F. Eto, Flavio P. Veras, Bianca H. V. Fernandes, Paulo R. S. Sanches, Eduardo M. Cilli, Guilherme Malafaia, Rafael H. Nobrega, Aguinaldo S. Garcez, Emanuel Carrilho, Ives Charlie-Silva
Summary: The study investigates the potential effect of red photobiomodulation (PBM) as a therapy for COVID-19. The findings suggest that inflammation is a significant feature of the disease, and PBM can help regulate the inflammatory response. Metabolomics analysis also reveals shared impacts on metabolic pathways between PBM and COVID-19.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Materials Science, Biomaterials
Jessica F. Feitor, Lais C. Brazaca, Amanda M. Lima, Vinicius G. Ferreira, Giulia Kassab, Vanderlei S. Bagnato, Emanuel Carrilho, Daniel R. Cardoso
Summary: Globalization has increased concerns about disease transmission and the need for efficient drug screening methods. Organ-on-a-chip technology has emerged as a viable alternative, simulating organ characteristics and predicting drug effects accurately. However, most devices still rely on materials from the micromachining industry, raising concerns about the environmental impact of plastic waste. This critical review discusses recent advances and scalability of organ-on-a-chip technology, as well as the importance of sustainability in research and production.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2023)
Article
Electrochemistry
Dara S. Santos, Caio V. S. Almeida, Katlin I. B. Eguiluz, Giancarlo R. Salazar-Banda
Summary: The catalytic activity of Pdx@Pty/C core-shell nanoparticles for methanol electrooxidation was investigated. The core-shell nanoparticles exhibited good dispersion, small particle sizes, and a Pd-Pt-rich core with a Pt shell. The core-shell catalysts displayed improved catalytic properties compared to Pt/C catalysts, and the Pd0.3@Pt0.7/C catalyst achieved the highest catalytic activity.
ELECTROCHIMICA ACTA
(2023)
Article
Engineering, Mechanical
Arley Alles Cruz, Fabio Cleisto Alda Dossi, Giancarlo Richard Salazar-Banda, Elton Franceschi, Gustavo Rodrigues Borges, Claudio Dariva
Summary: This study develops a new technique for monitoring inorganic scale based on electrical measurements in order to tackle scale formation in deep water oilfields. Synthetic water with similar composition to a pre-salt Brazilian oilfield was used for experiments, and two different methodologies for fouling formation were applied. The results show that the multiple-batch methodology increases the content of inorganic deposits on the electrodes and improves the system's output signal decay analysis. SEM-EDS studies validate the presence of fouling deposits and demonstrate the spatial distribution of the main scaling chemical elements.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2023)
Article
Engineering, Chemical
Aline R. Doria, Angela Moratalla, Caio V. S. Almeida, Ronaldo S. Silva, Katlin I. B. Eguiluz, Giancarlo R. Salazar-Banda, Manuel A. Rodrigo, Cristina Saez
Summary: Developing highly selective anode materials for hypochlorite generation in low-concentrated sodium chloride solutions is challenging. In this study, ruthenium-based binary anodes (Ti/RuO2 -Sb2O4 and Ti/RuO2 -TiO2) were synthesized using different heating methods. The anode characteristics and catalytic activity were found to be influenced by the heating method and chemical composition. The Ti/RuO2 -TiO2 anode prepared by laser heating showed the highest electrocatalytic activity for generating hypochlorite from low-concentrated NaCl solutions. This study provides new insights into the preparation of low-cost materials for efficient disinfectant generation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Chemistry, Analytical
Marija Jozanovic, Iva Pukles, Nikola Sakac, Emanuel Carrilho, Aniko Kilar, Brunislav Matasovic, Mirela Samardzic, Mateja Budetic, Ferenc Kilar
Summary: Microchip electrophoresis is the most promising method for integrated lab-on-a-chip devices, and the use of nanomaterials in electrophoresis has opened up vast possibilities. This comprehensive review provides an overview of recent applications of nanomaterials in microchip electrophoresis, including their use as stationary and pseudostationary phases, as well as for analyte preconcentration. The review aims to highlight the increased capabilities of microchip electrophoresis and nanomaterial synergy in analytical separation methods.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Aline R. Doria, Isabelle M. D. Gonzaga, Gessica O. S. Santos, Caio V. S. Almeida, Deyvid C. Silva, Ronaldo S. Silva, Luciane P. C. Roma, Cristina Saez, Giancarlo R. Salazar-Banda, Katlin I. B. Eguiluz
Summary: Ti/RuO2-TiO2 anodes were prepared using unconventional heating methods involving CO2 laser and microwave irradiation. These anodes exhibited improved electrochemical properties compared to conventionally-prepared anodes, with increased voltammetric charge and decreased charge transfer resistance. The laser and microwave-prepared anodes also had longer lifetimes and high efficiency in generating hypochlorite and degrading ciprofloxacin.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Stephanie Soares Aristides, Caio Vinicius da Silva Almeida, Katlin Ivon Barrios Eguiluz, Giancarlo R. Salazar-Banda
Summary: In this study, NixFey@Pdz/C core-shell nanoparticles with different compositions were synthesized and it was found that the addition of Ni-Fe enhanced the catalytic activity of Pd in glycerol oxidation. Among them, the Ni1.5Fe13.5@Pd85/C catalyst exhibited the best electrocatalytic performance with a specific activity 1.28 times higher than that of Pd/C. In situ FTIR spectroscopy data revealed favorable formate and CO2 production on NiFe@Pd/C catalysts. The results highlight the synergistic effect of composition and core-shell morphology on catalytic activity.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Environmental Sciences
Raira Souza de Santana Castro, Aline Resende Doria, Fabio Costa, Silvana Mattedi, Katlin Ivon Barrios Eguiluz, Giancarlo Richard Salazar-Banda
Summary: The development of efficient and economically viable anode technologies is crucial for treating water contaminated with complex organic pollutants. The use of ionic liquids as solvents in the production of anodes has emerged as a promising alternative, with the calcination temperature playing a decisive role in the anodes' durability and electrochemical properties. Anodes prepared with dipropyl ammonium butyrate (DPA-Bu) at 350 degrees C exhibit higher stability and improved results in terms of organic compound degradation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)