Article
Chemistry, Physical
Carlos E. Caballero-Guerecaa, M. R. Alfaro Cruza, E. Luevano-Hipolitoa, Leticia M. Torres-Martinez
Summary: Highly transparent ZnO films were successfully deposited on glass substrates using the sol-gel technique. The quality of the films was influenced by the concentration of zinc in the precursor solution and the annealing temperature. The films showed good crystallinity and preferential orientation, and exhibited high transmittance of over 90%.
SURFACES AND INTERFACES
(2023)
Review
Chemistry, Analytical
Mandeep Singh, Francesco Scotognella
Summary: With the continuous growth in the optoelectronic industry, the demand for novel and highly efficient materials, especially transparent conducting oxides (TCOs), is increasing. Indium tin oxide (ITO) is the dominant material currently used, but its high cost and scarcity of indium have created a need for alternatives. Solution-processed aluminum doped zinc oxide (AZO) is emerging as a potential replacement due to its abundant supply and exceptional properties. This mini review provides an overview of recent progress in the development of solution-processed AZO, including synthesis methods, the effect of aluminum doping content, and the co-doping strategy to enhance its properties.
Article
Materials Science, Multidisciplinary
Vedaste Uwihoreye, Zhenni Yang, Jia-Ye Zhang, Yu-Mei Lin, Xuan Liang, Lu Yang, Kelvin H. L. Zhang
Summary: In this study, Ta-doped SnO2 thin films were fabricated via a low-cost sol-gel spin coating method, achieving high electrical conductivity and high optical transparency. The optical bandgaps of the films increased due to Ta doping, however, a bandgap shrinkage was also observed due to many-body interactions. These films exhibit both transparency and conductivity, providing a new platform for optoelectronic and solar cell applications.
SCIENCE CHINA-MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Gokhan Demircan, Enes Furkan Gurses, Bulent Aktas, Serife Yalcin, Abuzer Acikgoz, Gokhan Ceyhan, Mehmet Vehbi Balak
Summary: Ti and Si doped ZnO thin films were fabricated using the sol-gel spin coating method. The structural and optical properties of the films were investigated using various characterization techniques. The results showed that the surface morphology consisted of ZnO fiber structures and the thickness of the films increased with Ti content. XRD and Raman spectra confirmed the retention of the hexagonal wurtzite crystal structure, while the crystallinity decreased. The films exhibited high optical transmittance and a redshift in the UV spectrum with increasing Si concentration.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Leandro L. Peres, Camila M. Cholant, Rafaela M. J. Lemos, Marco P. Rodrigues, Luana U. Kruger, Richard Pereira, Wladimir H. Flores, Andre Gundel, Douglas L. da Silva, Agnieszka Pawlicka, Cesar O. Avellaneda
Summary: The study used the peroxovanadate sol-gel method to produce ZnO-doped V2O5 thin films, demonstrating that ZnO doping improved the cyclic stability and reversibility of the films and resulted in a mixture of crystalline phases.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Leandro L. Peres, Camila M. Cholant, Rafaela M. J. Lemos, Marco P. Rodrigues, Luana U. Krueger, Richard Pereira, Wladimir H. Flores, Andre Guendel, Douglas L. da Silva, Agnieszka Pawlicka, Cesar O. Avellaneda
Summary: This study used the peroxovanadate sol-gel method to produce ZnO-doped V2O5 thin films and investigated the effect of doping on the electrochromic and structural characteristics of the films. The results showed that ZnO doping improved the cyclic stability and reversibility of the films, making them promising candidates for electrochromic device applications.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Youxiong Ye, Andrew B. Hamlin, Julia E. Huddy, Md Saifur Rahman, William J. Scheideler
Summary: This article presents a new method of printing transparent conductive oxides using 2D conducting metal oxides, which offers unprecedented control of thin film electrostatics at the nanoscale. The use of repeating heterostructures of these 2D oxide layers allows for a significant increase in conductivity and optical transmittance. This innovative approach surpasses traditional sol-gel and nanoparticle printing methods and enables the rapid fabrication of flexible inorganic electronics.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Applied
Narges Kiomarsipour, Akbar Eshaghi, Mazaher Ramazani, Hossein Zabolian, Marzieh Abbasi-Firouzjah
Summary: In this work, the nanomechanical behaviors and optical properties of nanohybrid thin films coated on polycarbonate substrates were investigated. The sol-gel process was used with TEOS, GPTMS, and aluminum tri sec-butoxide as main precursors. The results showed that upward speed had a significant effect on nanomechanical properties, while optical properties remained constant. The prepared thin films had a lower refractive index than the PC substrate, resulting in increased transmittance. Furthermore, the nanohybrid thin films improved the hardness and elastic modulus of the PC substrate, while reducing the friction coefficient and increasing pencil hardness.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Materials Science, Ceramics
Hiroyuki Hayashi, Keita Kouzai, Yuta Morimitsu, Isao Tanaka
Summary: Despite extensive research, accurately predicting successful synthesis conditions for new pseudo-binary oxides remains a challenge. This study introduces a synthesis-condition recommender system to efficiently explore a wide chemistry space and successfully discovered two yet-to-be-found pseudo-binary oxides through systematic synthesis experiments.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Milad Abdolahzadeh Saffar, Akbar Eshaghi, Mohammad Reza Dehnavi
Summary: This study developed a two-stage process to create hydrophobic and anti-fouling thin films on copper substrates. The structure and morphology of the films were analyzed, and their corrosion behavior and anti-fouling properties were tested. The results showed significant improvements in water contact angle, corrosion current density, and antifouling effect.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
E. M. Ezz Elregal, M. A. Ahmed, M. F. Abdel-Messih, Z. M. Abou-Gamra
Summary: ZnO nanoparticles were prepared using a template-free sol-gel method and characterized by various techniques. The nanoparticles exhibited strong UV emission and low intensity bands indicating defects in ZnO, resulting in high catalytic activity. The photocatalytic degradation of Fluorescein dye showed efficient degradation and complete mineralization.
Article
Chemistry, Physical
Liwei Che, Jianmin Song, Jinzheng Yang, Xiaoyang Chen, Junjie Li, Nan Zhang, Shaopeng Yang, Yanfeng Wang
Summary: In this study, F, Cl, and Ga co-doped ZnO films were deposited on a glass substrate using the sol-gel spin-coating method. The effects of F-doping content on the structural, morphological, electrical, and optical properties of the films were investigated. The F, Cl, and Ga co-doped ZnO film with a doping ratio of 2% showed the best photoelectric performance, with high transmittance and a wide optical band gap.
JOURNAL OF MATERIOMICS
(2023)
Article
Materials Science, Ceramics
Narendar Nasani, Srinivas R. Gavinola, Vanessa Graca, Amarnath R. Allu, Raghu C. Reddy, Bharat B. Kale
Summary: The ABO(3) type perovskite oxide-based ceramic membranes, specifically acceptor-doped calcium titanate, have high potential for high-temperature solid oxide fuel cell applications due to their high ionic conductivity and stability. This study focused on the effect of Al and Ni additions on electrical properties of the material, showing an increase in grain boundary conductivity with increasing Ni content and predominant p-type behavior under oxygen-rich atmosphere.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Amid Shakeri, Mohammad Reza Golobostanfard, Hossein Abdizadeh
Summary: The sol-gel dip coating deposition method was used to fabricate multi-stacked hard/soft piezoelectric lead zirconate titanate (PZT) films with near stoichiometry composition and high quality crack-free surfaces. These films exhibited significantly enhanced polarization, high coercive field, and square shaped polarization-electric field loops, achieving excellent performance in terms of remanent polarization and coercive field. The intriguing properties of hard/soft composite are attributed to the polarization interaction of composite layers and diffusion of ions through the layers.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Automation & Control Systems
Natalia Fernanda Santos Pereira, Barbara Cristina Mendanha Reis, Anderson Junior Dos Santos, Manuel Houmard, Marcelo Araujo Camara, Alessandro Roger Rodrigues, Juan Carlos Campos Rubio
Summary: A more economic and thinner SiO2 coating was developed to improve the tribological behavior of high-speed steel tools. It showed performance equivalent to commercial TiN coating, especially at sliding speeds of 40 and 55 m center dot min(-1). The sol-gel coating can be a promising protection for cutting tools in abrasive wear applications without the need for high temperatures.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Microbiology
Pilar Somovilla, Carlos Garcia-Crespo, Brenda Martinez-Gonzalez, Maria Eugenia Soria, Ana Isabel de Avila, Isabel Gallego, Pablo Minguez, Antoni Duran-Pastor, Cristina Ferrer-Orta, Llanos Salar-Vidal, Mario Esteban-Munoz, Sonia Zuniga, Isabel Sola, Luis Enjuanes, Jaime Esteban, Ricardo Fernandez-Roblas, Ignacio Gadea, Jordi Gomez, Nuria Verdaguer, Esteban Domingo, Celia Perales
Summary: We report that ribavirin has an inhibitory and mutagenic activity on SARS-CoV-2-infected Vero cells, with a therapeutic index higher than 10. Deep sequencing analysis shows an increase in mutations, but not deletions, and modification of diversity indices in the presence of ribavirin. The major mutation types enhanced by ribavirin are A -> G and U -> C transitions, opposite to the dominant G -> A and C -> U transitions observed in most RNA viruses. The implications of ribavirin's inhibitory activity and atypical mutational bias on SARS-CoV-2 for the search for synergistic anti-COVID-19 lethal mutagen combinations are discussed.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
(2023)
Article
Clinical Neurology
Javier Martinez-Poles, Ana Isabel Saldana-Diaz, Jaime Esteban, Monica Lara-Almunia, Anthony Tito Vizarreta Figueroa, Leticia Martin-Gil, Jose Cebrian-Escudero, Jose Fernandez-Ferro
Summary: The first case of meningoencephalitis due to Mycobacterium lentiflavum in an immunocompromised patient is documented. The clinical and radiological features, as well as the treatment and prognosis of the patient, are described.
EUROPEAN JOURNAL OF NEUROLOGY
(2023)
Review
Pharmacology & Pharmacy
Karen Escobar, Karla A. Garrido-Miranda, Ruth Pulido, Nelson Naveas, Miguel Manso-Silvan, Jacobo Hernandez-Montelongo
Summary: This review comprehensively covers the chemical properties and synthesis routes of CD/CTR cross-linking, as well as their applications as drug-delivery systems on different substrates. The study found that the CD/CTR biopolymers were nontoxic, environmentally friendly, and inexpensive, making them widely used in coating implants and biomedical materials. The importance of pretreatment methods on substrates and the analysis of release mechanisms, including the Korsmeyer-Peppas mathematical model, were also discussed. The flexibility of CD/CTR in hosting a wide variety of drugs, integrating with diverse implantable materials, and controllable release kinetics provide a range of advantages for future uses.
Article
Engineering, Electrical & Electronic
Philipp Gribisch, Rosalia Delgado Carrascon, Vanya Darakchieva, Erik Lind
Summary: In this work, quasi-vertical gallium nitride (GaN) fin field effect transistors (FinFETs) on silicon carbide (SiC) substrates and the influence of a postgate metallization annealing (PMA) were fabricated and investigated. The devices showed low subthreshold swings (SSs) of around 70 mV/dec. They also exhibited low ON-resistance, high breakdown voltage, and reduced gate leakage current when subjected to PMA. The effective and field-effect mobility of the fin channel was comparable to similar devices reported previously.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Chemistry, Physical
Marta Martin-Garcia, John Jairo Aguilera-Correa, Maria Angeles Arenas, Ignacio M. Garcia-Diego, Ana Conde, Juan Jose de Damborenea, Jaime Esteban
Summary: Prosthetic joint infection is a rare but costly problem. This study evaluated the adherence of different bacteria to two types of alloys commonly used in joint prostheses. The results showed that the interaction between bacteria and the alloys differed significantly, with the CoCrMo alloy having an aggregating effect on all bacteria and additional anti-adherent activity against Pseudomonas aeruginosa.
Article
Immunology
Syong H. Nam-Cha, Elena Dominguez-Jurado, Selena L. Tinoco-Valencia, Ramon Perez-Tanoira, Noelia Morata-Moreno, Rocio Alfaro-Ruiza, Agustin Lara-Sanchez, Jaime Esteban, Rafael Lujan, Carlos Alonso-Moreno, Pedro Segui, Alberto Ocana, Angel Lopez Gonzalez, John J. Aguilera-Correa, Francisco C. Perez-Martinez, Milagros Molina Alarcon
Summary: This study aimed to translate clinical research outcomes based on metallodrugs into clinical practice for the treatment of MRSA. The novel metallodrug 2P-Pt showed antibacterial effect against MRSA and inhibited biofilm formation. These findings suggest that 2P-Pt may be a promising therapeutic alternative for MRSA infections.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2023)
Article
Pharmacology & Pharmacy
Maider Ugalde-Arbizu, John Jairo Aguilera-Correa, Victoria Garcia-Almodovar, Karina Ovejero-Paredes, Diana Diaz-Garcia, Jaime Esteban, Paulina L. Paez, Sanjiv Prashar, Eider San Sebastian, Marco Filice, Santiago Gomez-Ruiz
Summary: Five different silica nanoparticles functionalized with vitamin B12, a derivative of coumarin found in green plants and a minimum content of an organotin(IV) fragment have been identified as excellent anticancer agents against triple negative breast cancer. Additionally, they also show effective antibacterial activity.
Article
Microbiology
Alba Ruedas-Lopez, Marta Tato, Antonio Broncano-Lavado, Jaime Esteban, Maria Jesus Ruiz-Serrano, Maria Sanchez-Cueto, Carlos Toro, Diego Domingo, Juana Cacho, Laura Barrado, Paula Lopez-Roa
Summary: The study aimed to determine the subspecies distribution of Mycobacterium abscessus (MABS) and its correlation with antibiotic profiles. The clinical isolates included 50 (52.1%) MABS subsp. abscessus, 33 (34.4%) MABS subsp. massiliense, and 13 (13.5%) MABS subsp. bolletii. Resistance rates varied among different drugs, with amikacin, cefoxitin, linezolid, and imipenem showing high activity against MABS. The GenoType NTM-DR assay demonstrated a high level of agreement with the traditional drug susceptibility testing.
MICROBIOLOGY SPECTRUM
(2023)
Article
Microbiology
J. J. Aguilera-Correa, B. Salinas, M. Gonzalez-Arjona, D. de Pablo, P. Munoz, E. Bouza, M. J. Fernandez Acenero, J. Esteban, M. Desco, L. Cusso
Summary: This study compared structural and molecular imaging techniques to assess disease progression in a mouse model of osteomyelitis. The results showed that FDG-PET imaging was more sensitive than MRI and CT in differentiating between infection and inflammation at early stages.
MICROBIOLOGY SPECTRUM
(2023)
Review
Infectious Diseases
Guillermo Santamaria-Corral, Abrar Senhaji-Kacha, Antonio Broncano-Lavado, Jaime Esteban, Meritxell Garcia-Quintanilla
Summary: Phage therapy is an alternative therapy used as a last resort against multidrug-resistant bacteria infections. Pseudomonas aeruginosa, a pathogen that commonly infects immunocompromised individuals, can be effectively treated using bacteriophages alone or in combination with antibiotics. This review summarizes recent studies highlighting the synergistic effects of phage-antibiotic combinations and successful treatments.
Article
Nanoscience & Nanotechnology
Khouloud Hamraoui, Vivian Andrea Torres-Vera, Irene Zabala Gutierrez, Alejandro Casillas-Rubio, Mohammed Alqudwa Fattouh, Antonio Benayas, Riccardo Marin, Marta Maria Natile, Miguel Manso Silvan, Juan Rubio-Zuazo, Daniel Jaque, Sonia Melle, Oscar G. Calderoin, Jorge Rubio-Retama
Summary: Rare-earth doped nanoparticles (RENPs) have attracted increasing interest in materials science due to their optical, magnetic, and chemical properties. RENPs can emit and absorb radiation in the second biological window (NIR-II, 1000-1400 nm), making them ideal optical probes for in vivo imaging. The optimization of thermal sensitivity in RENPs depends on the core chemical composition and size, active-shell, and outer-inert-shell thicknesses.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Nelson Naveas, Ruth Pulido, Vicente Torres-Costa, Fernando Agullo-Rueda, Mauricio Santibanez, Francisco Malano, Gonzalo Recio-Sanchez, Karla A. Garrido-Miranda, Miguel Manso-Silvan, Jacobo Hernandez-Montelongo
Summary: This study proposes the formation of antibacterial films with silver nanoparticles embedded in carboxymethylcellulose/chitosan multilayers by the layer-by-layer method. The films exhibited high antibacterial activity against both Escherichia coli and Staphylococcus aureus, indicating their potential for biomedical applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Rodrigo Calvo, Valerio Pini, Andreas Thon, Asis Saad, Antonio Salvador-Matar, Miguel Manso Silvan, Oscar Ahumada
Summary: A novel spectrophotometric method, called Amplitude-Resolved Single Particle Spectrophotometry, is presented in this study to measure the individual sizes of thousands of nanoparticles with nanometric accuracy in just a few minutes. This new method shows excellent accuracy and adaptability to more complex particle geometries.
Article
Chemistry, Physical
Nelson Naveas, Ruth Pulido, Carlo Marini, Pierluigi Gargiani, Jacobo Hernandez-Montelongo, Ivan Brito, Miguel Manso-Silvan
Summary: In this report, the DFT + U + V approach was used to simulate the properties of Fe3O4 and compare them with experimental data. The study showed that DFT + U + V can improve the structural, magnetic, and electronic properties of Fe3O4 compared to approximate DFT and DFT + U. Furthermore, the observations highlighted the significance of intersite interactions in the theoretical analysis of Fe3O4.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2023)
Article
Chemistry, Multidisciplinary
Rodrigo Calvo, Isabel Rodriguez Mariblanca, Valerio Pini, Monica Dias, Virginia Cebrian, Andreas Thon, Asis Saad, Antonio Salvador-Matar, Oscar Ahumada, Miguel Manso Silvan, Aaron E. Saunders, Wentao Wang, Adonis Stassinopoulos
Summary: This paper focuses on the importance of multifunctional nanoparticles in biomedical applications and optimizing their fabrication methods. Special attention is given to size-dependent properties, biocompatibility, and challenges that may arise. Various novel methods for characterizing the magnetic gold particles are also discussed to ensure their quality and applicability.