Article
Chemistry, Multidisciplinary
Elena G. Zemtsova, Denis V. Yurchuk, Pavel E. Morozov, Petr M. Korusenko, Vladimir K. Kudymov, Vladimir M. Smirnov
Summary: The important task of modern materials science is to develop new composites with improved functional properties. Achieving a uniform distribution of the dispersed ceramic phase in the metallic matrix can be accomplished by modifying the surface of the dispersed ceramic phase with a metal coating.
Article
Chemistry, Multidisciplinary
Zhi-Yuan Cao, Lei Chen, Le-Le Song, Ding Weng, Yuan Ma, Bo-Wen Yu, Xuan Li, Xing-Fu Shang, Jia-Dao Wang
Summary: This paper presents a feasible solution for fabricating flexible copper microcircuits using silver seeds and chemical welding process of copper at near room temperature. The growth of copper microcircuits is directly determined by the size and distribution of silver seeds. The optimized parameters enable the preparation of patterned fine copper microcircuits and large-area copper wires with good conductivity and fatigue resistance.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Jose Ferreira De Sousa Jr, Soumya Columbus, Jannat Hammouche, Krithikadevi Ramachandran, Kais Daoudi, Mounir Gaidi
Summary: In this study, silicon micro-pyramids functionalized with silver nanoparticles were successfully developed as low-cost SERS chemosensors for the fast detection of various hazardous organic pollutants. The optimized micro-pyramid structure with well-controlled morphology was obtained by subjecting silicon to alkali mediated chemical etching process. The sensor exhibited high sensitivity and stability, and was capable of detecting organic dyes at picomolar levels and para-nitrophenol at femtomolar levels.
APPLIED SURFACE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Chun Xu, Chang Lei, Yue Wang, Chengzhong Yu
Summary: Dendritic mesoporous silica nanoparticles have attracted attention due to their wide applications, but the terminology used is ambiguous. This review provides a critical analysis of reported dendritic silica nanoparticles according to their structural classification, updating the understanding of their formation mechanisms and the control of structural parameters. The review also focuses on the applications of dendritic mesoporous nanoparticles in the biomedical field, offering new insights into the structure-property relationship.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Ceramics
Eva Krakor, Sven Saniternik, Isabel Gessner, Robert Frohnhoven, Michael Wilhelm, Marco Drexelius, Nurgul Tosun, Ines Neundorf, Sanjay Mathur
Summary: Intensive and overuse of antibiotics have led to a rise in antibiotic resistance globally, creating a demand for alternative treatments. Metal ions like copper, silver, and zinc have been used to inhibit microorganism growth for centuries. This study focuses on the synthesis of metal and oxide nanoparticles immobilized on hollow mesoporous silica capsules (HMSCs) for efficient antimicrobial effects against both Gram-positive and Gram-negative bacteria. The results show promising potential for metal-loaded capsules as antibacterial delivery vehicles, providing sustained bacterial inhibition over several hours.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Jaeran Lee, Ji Won Ha
Summary: This study investigated the hot electron-mediated photoreduction of silver ions on gold nanorods under white light irradiation without a reducing agent, leading to the formation of core@shell structures. The deposition of silver on the nanorods resulted in increased scattering intensity and blue shifted localized surface plasmon resonance peak. The study also explored the effect of different light-on/off cycle conditions and silver nitrate concentration on the spectral changes.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Peter Daniel Nixon, E. Jayaseelan, R. Pushpakumar, Nallamuthu Ananthi
Summary: In this study, AgVO3@KIT-5 material was used to successfully achieve photocatalytic degradation of methylene blue dye with an efficiency of 89.5%. The recycled catalyst also showed good photocatalytic efficiency.
Article
Materials Science, Multidisciplinary
Laser Assisted, Savita Rani, A. K. Shukla
Summary: The fabrication of silicon nanowires by metal-assisted chemical etching and deposition of silver nanoparticles by the electroless method can be used for SERS detection of organic pollutants. Study shows that increasing the length of SiNWs decreases the enhancement of SERS, and SERS has potential in discriminating mixed dyes.
Article
Chemistry, Multidisciplinary
Nicoleta Preda, Andreea Costas, Francesca Sbardella, Maria Carolina Seghini, Fabienne Touchard, Laurence Chocinski-Arnault, Jacopo Tirillo, Fabrizio Sarasini
Summary: Hierarchical functionalization of flax fibers with ZnO nanostructures improves interfacial adhesion between fibers and matrix in composite materials. The ZnO-coated flax fibers exhibit good wetting properties and maintain their tensile properties. The ZnO nanostructures enhance interfacial adhesion and restrain debonding phenomena at the fiber/matrix interface.
Article
Materials Science, Textiles
Chengmei Gui, Di Sun, Wenya Liu, Haodong Ma, Zhenming Chen, Peng Li, Junjun Huang
Summary: This study establishes a method of fabricating radiation protection suits using electroless nickel plating on pure cotton surface to replace traditional silver film suits. The fabricated material exhibits good shielding effectiveness and stable crystallinity and electrical property.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Nanoscience & Nanotechnology
Federico Olivieri, Rachele Castaldo, Mariacristina Cocca, Gennaro Gentile, Marino Lavorgna
Summary: In this study, engineered stimuli-responsive mesoporous silica nanoparticles were developed as multifunctional carriers for a typical corrosion inhibitor, benzotriazole, in polymer coatings. The results showed the high potential of the proposed system for metal protection in both acidic and alkaline environments, due to the synergistic effect of the mesoporous structure and the capping system designed for controlled release and capture of chloride ions.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Akanksha Agarwal, Charvi Varshney, Bommineedi Lakshmana Kumar, Avinash C. Mendhe, Tushar B. Deshmukh, Babasaheb R. Sankapal
Summary: This study successfully synthesizes manganese nanoparticles with a spongy nano flakes-like surface structure using a simple electroless route and applies them as active electrodes for supercapacitive energy storage devices. The manganese thin film electrode exhibits good capacitance and cyclic retention characteristics, and the designed bendable solid-state symmetric device shows remarkable specific power and deformation endurance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Analytical
Prateek Bindra, Arnab Hazra
Summary: This study compared the sensing capabilities of three sensors based on pristine TiO2 nanotubes, Pd loaded TiO2 nanotubes, and Pt loaded TiO2 nanotubes. It was found that loading of Pd and Pt nanoparticles significantly improved the response magnitude of the sensors, and the formation of Pd/Pt-TiO2 discrete heterojunctions on the surface of TiO2 nanotubes played a key role in enhancing sensor sensitivity.
Article
Materials Science, Multidisciplinary
Georgia Kastrinaki, Souzana Lorentzou, Athanasios G. Konstandopoulos
Summary: In this study, uniformly porous and solid core porous particles were synthesized by aerosol spray pyrolysis route using a one-step process, which is of high interest for pharmaceutical and catalytic applications. The effect of synthesis parameters on the core size, surface area, and porosity of the core-shell structures was validated through morphological evaluation and nitrogen adsorption and desorption isotherms. Different surfactants (Brij-58, CTAB, P123) at various concentrations and combinations, as well as different core type compositions (NaCl, CeO2, and Ce0.8Zr0.2O2), were evaluated for the controlled synthesis of silica core-shell particles using a scalable synthesis method.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Jingyun Zhang, Yajun Zhong, Chunyan Zhang, Junyu Zhang, Zhenjing Zhuang
Summary: Mesoporous Pt-Pd bimetallic core-shell nanospheres with palladium-rich cores and platinum-rich shells were synthesized via a simple wet chemical strategy mediated by nitrogen-doped carbon dots. These nanospheres showed superhigh oxidase activity and excellent oxidase-like catalytic efficiency due to their large active surface area.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Applied
Javier M. Abbas, Martin Stortz, Hernan B. Rodriguez, Valeria Levi, Alejandro Wolosiuk, Carla C. Spagnuolo
Summary: In this study, three novel near-infrared aminotricarbocyanine derivatives with antioxidant moieties gallic acid and Trolox were synthesized and investigated for their photophysical properties. The dyes showed enhanced photostability in aqueous and non-aqueous environments due to a self-healing process through redox quenching of reactive intermediates from excited states. Additionally, a functional group (-COOH) was included in the chemical structure of the dyes for potential conjugation with biomolecules or surfaces.
Article
Chemistry, Inorganic & Nuclear
M. Fernanda Torresan, Josefina Morrone, Cecilia Sorbello, Roberto Etchenique, Paula C. Angelome, Alejandro Wolosiuk
Summary: A novel optically transparent platform was designed and synthesized by combining NaYF4: Er3+, Yb3+ upconverting nanoparticles (UCNPs) and mesoporous metal oxide thin films (MOTFs). The composite films blend the properties of UCNPs and MOTFs, exhibiting both upconverting properties and highly accessible mesopores. Testing showed promising results for temperature sensing applications of the composite films.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Materials Science, Ceramics
Alejandra Calvo, Leandro Andrini, Federico J. Williams, Jose M. Ramallo-Lopez, Galo J. A. A. Soler-Illia, Felix G. Requejo
Summary: Mesoporous hybrid materials with inorganic and organic functional groups show potential for advanced applications such as separation, sorption, and catalysis. Studying the structure and variations of these materials under different conditions is crucial for understanding multiscale control and optimizing performance.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Esteban A. Franceschini, Gustavo Gimenez, M. Veronica Lombardo, Andres Zelcer, Galo J. A. A. Soler-Illia
Summary: Interest in core-shell materials with chemically tunable mesoporous surfaces has grown, with aerosol synthesis techniques offering faster production and easier separation of functional materials. A green chemistry method was presented for coating sub-micron colloidal particles with mesoporous metal oxide nanofilms, demonstrating high reproducibility and continuous production capabilities. The obtained nanofilms were characterized by various analytical techniques, showing different pore sizes and film thicknesses depending on the particulate support used.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Review
Materials Science, Ceramics
Diego F. Lionello, Juan Ignacio Ramallo, Galo J. A. A. Soler-Illia, Maria Cecilia Fuertes
Summary: The mechanical properties of ordered mesoporous thin films and the experimental techniques used to measure them are discussed in this review. The relationship between hardness (H) and elastic modulus (E) with structural features such as porosity (P) are analyzed for several mesoporous systems. Additionally, tribological and fractomechanical features are assessed.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yamili Toum Terrones, Maria Fernanda Torresan, Martin Mirenda, Hernan B. Rodriguez, Alejandro Wolosiuk
Summary: In this study, a reverse microemulsion synthesis method was used to incorporate methylene blue into SiO2 nanoparticles, resulting in highly efficient photoactive nanoentities. By controlling the synthesis conditions, SiO2 nanoparticles with high local concentration of methylene blue and moderate dye aggregation were obtained. These nanoparticles exhibited high singlet oxygen photogeneration efficiency and could also be used as red fluorescent probes.
Article
Chemistry, Multidisciplinary
M. Jazmin Penelas, Gustavo F. Arenas, Fernando Trabadelo, Galo J. A. A. Soler-Illia, Sergio E. Moya, Paula C. Angelome, Cristina E. Hoppe
Summary: In this study, monodisperse silica-coated gold nanoparticles were synthesized to obtain aqueous colloidal dispersions with an optimal balance between colloidal stability and photothermal activity. The presence of a silica shell not only enhanced the photothermal effect but also controlled the optical properties of the colloidal dispersions, making them highly valuable for biomedical therapies, sensing applications, and other technological applications.
Article
Multidisciplinary Sciences
Agustin D. Pizarro, Claudio L. A. Berli, Galo J. A. A. Soler-Illia, Martin G. Bellino
Summary: The authors demonstrate the use of nanoporous surfaces to create stimuli-responsive droplet interactions that exhibit shape transformation and complex behaviors similar to living cells.
NATURE COMMUNICATIONS
(2022)
Article
Polymer Science
Sebastian Alberti, Juan Giussi, Omar Azzaroni, Galo J. A. A. Soler-Illia
Summary: Manipulation and understanding of molecular transport across functionalized nanopores can lead to the design of high-performance selective separation systems. In this study, Surface-initiated atom transfer radical polymerization (SI-ATRP) was carried out on mesoporous silica and mesoporous titania thin films, and the filled pores were confirmed. The ion permeability was found to depend on the properties of the inorganic scaffolds and the polyelectrolyte.
Review
Materials Science, Biomaterials
M. Veronica Rivas, Maria J. Arenas Muneton, Andrea V. Bordoni, M. Veronica Lombardo, Carla C. Spagnuolo, Alejandro Wolosiuk
Summary: The carboxylic chemical group has various applications, such as being a part of amino acids, a ligand for transition metals, and a stabilizer. Silica serves as an inert platform for anchoring multiple chemical entities, allowing for the functioning of an integrated chemical system. Different methods have been developed for the surface chemical modification of silica, using precursors like organoalkoxysilanes. This review analyzes the importance of COOH groups in materials science and presents new approaches for obtaining COOH-based organoalkoxide precursors.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Chemistry, Physical
Cecilia Samaniego Lopez, M. Veronica Rivas, Tomas A. Garcia Cambon, Alejandro Wolosiuk, Carla C. C. Spagnuolo
Summary: The optical properties of two novel near-infrared fluorescent tricarbocyanines were studied in solution and in micelles of surfactants. The spectral properties of the fluorophores depended on the heteroatom at the meso position and on solvent polarity and viscosity. Encapsulation of the dyes in surfactant micelles led to a drastic change in fluorescence emission and a protective effect against photobleaching. Furthermore, the dyes could function as a Förster resonance energy transfer pair within the micelles.
Editorial Material
Chemistry, Physical
Galo J. A. A. Soler-Illia, Marco Faustini, Luis M. Liz-Marzan
CHEMISTRY OF MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Maria L. Scala-Benuzzi, Sol N. Fernandez, Gustavo Gimenez, Gabriel Ybarra, Galo J. A. A. Soler-Illia
Summary: Electrochemical sensors are increasingly important in medicine, environmental monitoring, and industrial process control. However, their development faces challenges such as low target compound concentrations and complex analytical matrices. Mesoporous Thin Films (MTFs) have attracted great interest as electrode modifications due to their high surface area, uniform pore distribution, and electrochemical signal modulation possibilities. To fully exploit the advantages of MTFs, reproducible methods for sensitive and selective MTF-modified electrodes need to be developed, and mass and charge transport processes within the film and on the electrode need to be understood.
Article
Chemistry, Multidisciplinary
Sebastian Alberti, Sonja Schmidt, Simone Hageneder, Paula C. Angelome, Galo J. A. A. Soler-lllia, Philipp Vana, Jakub Dostalek, Omar Azzaroni, Wolfgang Knoll
Summary: Nanopores have various applications in biocatalysis, drug delivery, and sensing devices. The interaction between biomacromolecules and surfaces is influenced by nanopore diameter, which is important for their infiltration into porous materials. We present a novel approach for synthesizing large-pore mesoporous silica thin films (MTF) through supramolecular templating and phase separation using block copolymers. The tunability of pore size distribution is achieved through reversible addition-fragmentation chain transfer (RAFT) polymerization.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Matias E. Aguirre, Rocio Isla Naveira, Pablo M. Botta, Tamara A. Altieri, Alejandro Wolosiuk, Maria Sandra Churio
Summary: Metal organic frameworks (MOFs) based on titanium and carboxylic acid derivatives have been proposed as mediators for photoinduced processes, with the destabilization of the frame minimized by regulating the medium pH. The introduction of NH2 extends photoactivity while reducing hydrostability, showing potential as a support for photochemical activation of NAD-dependent enzymes in neutral aqueous media.
NEW JOURNAL OF CHEMISTRY
(2021)
