Article
Materials Science, Ceramics
A. Rahman, G. Mariotto, E. Cattaruzza, E. Trave, F. Gonella, A. Quaranta
Summary: The study investigates the modification of silica network structure and silver clustering process during external treatments in ion-exchanged silicate glasses. External treatments result in adjustments to the silica network microstructure, including changes in polymerizing units and appearance/disappearance of non-bridging oxygen centers.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Ceramics
Ali Talimian, Aleksandra Nowicka, Hana Kankova, Gohar Sani, Dagmar Galuskova, Lothar Wondraczek, Dusan Galusek
Summary: In this study, silver-containing surfaces were produced by ion exchange in glass, allowing silver ions to penetrate 3-5 μm and providing the necessary Ag+ leaching for antimicrobial applications. Surface compression was found to alter the release of silver ions.
INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
Xesus Prieto-Blanco, Carlos Montero-Orille, Jesus Linares, Hector Gonzalez-Nunez, Daniel Balado
Summary: In this paper, ion-exchanged glass is proposed as a platform for quantum photonics. Quantum projectors are implemented using integrated optical directional couplers fabricated by ion exchange in soda-lime glass. Empirical relationships between fabrication and optical parameters of these couplers are obtained through experimental characterization. Additionally, a two-dimensional quantum projector is demonstrated.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Atowar Rahman, G. Mariotto, E. Cattaruzza, E. Trave, F. Gonella, A. Quaranta
Summary: Controlled precipitation of metal nanostructures into glassy matrices is a valid method for synthesizing materials suitable for photonics, optoelectronics, and telecom applications. The study focuses on modifying the state of silver in silicate glasses through post-exchange treatments, such as thermal annealing and laser irradiation, to control the formation and size distribution of Ag nanoparticles, leading to efficient strategies for optical materials based on controlled distribution of metal clusters.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Archaeology
Georges Calas, Laurence Galoisy, Myrtille O. J. Y. Hunault, Prince Rautiyal, Katrina Skerratt-Love, Jessica C. Rigby, Paul A. Bingham
Summary: This study investigates the spectroscopic properties of uranium in two historical glasses, including a green soda-lime-silica uranium glass bowl from the 1920s-1930s Art Deco period (Bagley Carnival) and a yellow full lead crystal uranium glass vase from the 1930s-1940s (Thomas Webb). The results suggest that the uranium speciation differs between the two glasses, with the Webb glass containing more reduced uranium species (U(V)) than the Bagley glass. These differences can be attributed to the fining procedure and variations in the base glass composition.
JOURNAL OF CULTURAL HERITAGE
(2023)
Article
Engineering, Electrical & Electronic
Arashmid Nahal, Seyed Reza Hosseini, Masoud Mahjour-Shafiei
Summary: Ion-beam lithography in ion-exchanged glasses is used to fabricate miniaturized phase optical diffractive elements. The interaction of a low-energy He+ ion beam with silver-ion-exchanged glasses results in an increase in the index of refraction in the interacted areas, where the formation of neutral silver nanoparticles occurs. The produced elements exhibit remarkable dispersion for the index of refraction and are of good quality, optically effective, chemically stable, waterproof, and scratch-resistant.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Ceramics
Seiichi Taruta, Koji Matsuyama, Kouichi Nozaki
Summary: This study explores the silver ion-exchange process of transparent lithium-mica glass-ceramic in a molten AgNO3 and Ag2SO4 mixture, aiming to enhance its antibacterial activity and mechanical properties. The glass-ceramic was heated at 700 degrees C, causing the exchange of Li+ ions in the mica interlayers near the surface with Ag+ ions in the molten salt. As the ion-exchange time increased, Ag+ ions penetrated deeper, disrupting the mica layer structure. Heating further diffused Ag+ ions, resulting in a uniform distribution and a regular mica layer structure. Both ion-exchanged and heated ion-exchanged samples demonstrated antibacterial activity against Escherichia coli, yet their performance decreased in repeated antimicrobial tests. The ion-exchange process generated compressive stress near the surface, leading to increased Vickers hardness and fracture toughness, while heating reduced the heightened hardness. Despite improving the machinability of the glass-ceramic, ion-exchange alone did not.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Mohini Boora, Somil Malik, Vibhor Kumar, Manju Bala, Susheel Arora, Sunil Rohilla, Anand Kumar, Jasvir Dalal
Summary: The study investigates the structural and electrical properties of lithium borate glasses prepared using the melt-quench technique, revealing interesting features such as an increase in Non-Bridging Oxygens and dielectric constants with frequency and temperature. The applicability of the Kohlrausch-Williams-Watts function to the imaginary part of electric modulus is confirmed, and an analysis of ac conductivity data shows a universal power law dependence on hoppable ion concentration. Furthermore, changes in impedance and space charge polarization with increasing Li2O concentration are observed, along with the electrical behavior studied using an impedance equivalent circuit.
SOLID STATE IONICS
(2021)
Article
Physics, Condensed Matter
Igor Reduto, Ekaterina Babich, Svetlana Zolotovskaya, Amin Abdolvand, Andrey Lipovskii, Valentina Zhurikhina
Summary: The formation of silver nanoparticles in silver-sodium ion-exchanged glasses can be controlled by a combination of thermal poling and nanosecond pulsed laser irradiation. Laser irradiation reduces silver ions to atomic silver via breaking bonds and extracting electrons, leading to the formation of silver nanoparticles on the poled glass surface.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Engineering, Electrical & Electronic
Sumit Chauhan, Rajni Bala, Saroj Rani, Sanjay Gaur
Summary: Heavy metal-based oxide glasses with varying bismuth content were synthesized and their properties were studied. The results showed that the optical properties of the glasses changed with increasing bismuth content, indicating their potential applications in nonlinear optics.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
Kavya Illath, Prasanta K. Ojha, Sangram K. Rath, T. G. Ajithkumar
Summary: This study investigates the local ordering in strontium borosilicate glasses with the substitution of B2O3 by Al2O3. The structural parameters were estimated and the coordination of network forming cations at different compositions was determined using solid-state nuclear magnetic resonance. It was found that as B2O3 was substituted by Al2O3, the coordination network of Al3+ changed and the network forming B3+ cations transformed. The average coordination number and oxygen packing fraction decreased and increased, respectively, upon incorporating Al.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Thermodynamics
Justyna Kuczek, Magdalena Szumera, Dorota Rutkowska-Zbik, Mariusz Gackowski, Justyna Sulowska
Summary: This study focused on the preparation and characterization of multicomponent cobalt phosphate-silicate glasses and the investigation of the influence of cobalt ions on the glass structure. The induced crystallization experiment revealed that the crystallization temperature was correlated with the formed crystalline phases. Data related to different parameters were obtained through techniques such as infrared spectroscopy. This research is of significance for further exploration of cobalt phosphate-silicate glasses and the understanding of the phosphate glass family.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Materials Science, Ceramics
Justyna Sulowska, Piotr Jelen, Zbigniew Olejniczak, Magdalena Szumera
Summary: The study found that glasses from the SiO2-P2O5-K2O-MgO-SO3 system can contain various reduced forms of sulfur, with MAS NMR spectra indicating slight polymerization of the silico-oxygen and phospho-oxygen subnetworks.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Ceramics
Mioara Zagrai, Sergiu Macavei, Simona Rada, Maria Elena Pica, Stela Maria Pruneanu
Summary: The trivalent gadolinium doped lead-lead dioxide glass has been successfully fabricated and investigated for its structural, optical, and luminescence properties. The addition of Gd2O3 content affects the structural units of the glass and the environment of Gd3+ ions, leading to emissions corresponding to Gd3+ ions transitions. The glass is suggested for warm orange luminescence applications based on CIE color coordinates.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Nanoscience & Nanotechnology
Xinpeng Wang, Menglin Li, Jian Zhang, Xihong He, John C. Crittenden, Wen Zhang
Summary: This study utilized anionic metal-organic frameworks (MOFs) as stable supports for Ag catalysts. The results showed that Ag nanoparticles were formed through the exchange of NH2Me2+ with extrinsic Ag+ ions, with 20% of Ag+ being reduced into Ag-0 and the remaining 80% remaining as Ag+ ions. Loading Ag into MOFs helped to alleviate aggregation and spontaneous reduction. Additionally, Ag in MOFs reacted with iodine vapor to form AgI, and the adsorption performance of MOF beads was evaluated.
ACS APPLIED NANO MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Silvio Cristiano, Patrizia Ghisellini, Gianni D'Ambrosio, Jingyan Xue, Antonio Nestico, Francesco Gonella, Sergio Ulgiati
Summary: This study examines the transition to circular economy in the Construction and Demolition Waste Management system of the Metropolitan City of Naples. Findings reveal a significant amount of building materials available for reuse, but the transition is still in its early stages due to a lack of reduction measures and demand for recycled products.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Materials Science, Ceramics
A. Rahman, G. Mariotto, E. Cattaruzza, E. Trave, F. Gonella, A. Quaranta
Summary: The study investigates the modification of silica network structure and silver clustering process during external treatments in ion-exchanged silicate glasses. External treatments result in adjustments to the silica network microstructure, including changes in polymerizing units and appearance/disappearance of non-bridging oxygen centers.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Green & Sustainable Science & Technology
S. Cristiano, S. Ulgiati, F. Gonella
Summary: This study focuses on the resource cost and appropriate use for implementing top-quality hospitals in deprived areas like Sudan, using an emergy-based approach and Life-Cycle Assessment data to calculate new unit emergy values. It evaluates sustainability and resilience, offering benchmarks for improvement scenarios and future investments in healthcare policies. The study emphasizes the efforts needed by nature and society to ensure human rights in conditions of scarcity.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Review
Chemistry, Analytical
Alberto Taffelli, Sandra Dire, Alberto Quaranta, Lucio Pancheri
Summary: Photodetectors based on MoS2 have shown remarkable characteristics in the visible spectral range, but can be further improved by coupling with other materials such as nanoparticles or quantum dots for enhanced response in the near ultraviolet and infrared spectral range. Additionally, heterostructures with different materials like other TMDs or graphene can speed up the response time of the photodetectors through the creation of built-in electric fields for faster charge carriers transport. Perovskites have been exploited to enhance device stability as passivation layers and electron reservoirs.
Article
Nanoscience & Nanotechnology
Mirko Vanzan, Tiziana Cesca, Boris Kalinic, Chiara Maurizio, Giovanni Mattei, Stefano Corni
Summary: Rare-earth ions sensitization is a relevant topic in modern technologies, and noble metal nanoclusters can effectively enhance lanthanide photoluminescence. Experimental works have shown the importance of nanocluster size and composition in this process. By studying the optoelectronic features of metal clusters and their interaction with defects in the silica matrix, new insights can be gained for designing rare-earth ion sensitizers.
Article
Multidisciplinary Sciences
Ilaria Fratelli, Andrea Ciavatti, Enrico Zanazzi, Laura Basirico, Massimo Chiari, Laura Fabbri, John E. Anthony, Alberto Quaranta, Beatrice Fraboni
Summary: The study demonstrates that flexible organic detectors based on thin films can directly detect 5-MeV protons and convert their energy into electrical current for measurement. These sensors can measure the dose of protons in real time and also in integration mode, with high sensitivity and a low limit of detection. The detectors proposed in this study show potential for use as proton dosimeters in various fields, including medical proton therapy.
Article
Physics, Applied
M. Favaro, R. Ceccato, S. Dire, E. Callone, A. Quaranta
Summary: The study aims to investigate the correlation between treatment conditions, composition, and structure of reduced zinc oxide with optical and radioluminescence properties. A threshold temperature around 800°C was found to impact grain size, shape, and electron spin resonance (ESR)-active defects. Additionally, a continuous increase in green emission intensity and variation in defect lifetimes were observed in photoluminescence and x-ray radioluminescence.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Materials Science, Ceramics
Atowar Rahman, G. Mariotto, E. Cattaruzza, E. Trave, F. Gonella, A. Quaranta
Summary: Controlled precipitation of metal nanostructures into glassy matrices is a valid method for synthesizing materials suitable for photonics, optoelectronics, and telecom applications. The study focuses on modifying the state of silver in silicate glasses through post-exchange treatments, such as thermal annealing and laser irradiation, to control the formation and size distribution of Ag nanoparticles, leading to efficient strategies for optical materials based on controlled distribution of metal clusters.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Biotechnology & Applied Microbiology
Virginia Cazzagon, Alessandra Romano, Francesco Gonella
Summary: Personalized nanomedicine has advanced rapidly in tailoring the diagnosis and treatment of diseases to individual characteristics of each patient, particularly in oncology. In investigating the complex systems of theranostic modalities, a Systems Thinking approach has been proposed to better understand treatment effects and feedback mechanisms through dynamic configurations and independent elements.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Biodiversity Conservation
Qing Yang, Gengyuan Liu, Marco Casazza, Francesco Gonella, Zhifeng Yang
Summary: The study proposes three perspectives and approaches to assess biodiversity: biodiversity potential, biodiversity's contribution to human well-being, and the significance of local charismatic species to global biodiversity conservation.
ECOLOGICAL INDICATORS
(2021)
Article
Energy & Fuels
Marco Casazza, Francesco Gonella, Gengyuan Liu, Antonio Proto, Renato Passaro
Summary: This study applies the principles of statistical mechanics to analyze data from the International Energy Agency, revealing declining energy efficiency and increasing power losses. It suggests that national energy performance depends on efficient energy consumption, and identifies better and worse performing countries. Five policy-relevant areas are highlighted, recommending actions such as redefining sectoral energy distribution shares and reducing resources supply to improve eco-efficiency and system performance.
Article
Green & Sustainable Science & Technology
Mustafa Ali, Silvio Cristiano, Yong Geng, Francesco Gonella, Sergio Ulgiati
Summary: The study evaluates the environmental sustainability of the largest public hospital in Gujranwala, Pakistan using the EMA method. The results show that the hospital indirectly contributes to environmental stress, which can be alleviated by increasing resource use efficiency. Additionally, the hospital is a complex system dependent on skilled labor and imported medical products and services.
JOURNAL OF ENVIRONMENTAL ACCOUNTING AND MANAGEMENT
(2021)
Article
Nanoscience & Nanotechnology
P. Ragonese, B. Kalinic, L. Franco, L. Girardi, B. M. Fernandez Perez, D. Carbonera, G. Mattei, G. -A. Rizzi, C. Maurizio
Summary: This study focuses on Co3O4/SiOx/Si and NiO/SiOx/Si photoanodes and reveals that defects in the native SiOx layer significantly affect the onset of photocurrent. Vacuum annealing can eliminate some defects and improve the photovoltage and charge transfer efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Multidisciplinary Sciences
Gengyuan Liu, Zhifeng Yang, Biagio F. Giannetti, Marco Casazza, Feni Agostinho, Jiamin Pan, Ningyu Yan, Yan Hao, Lixiao Zhang, Cecilia M. V. B. Almeida, Francesco Gonella, Sergio Ulgiati, Mark T. Brown
Summary: This paper extends, refines, and updates Howard T. Odum's concept of transformity, demonstrating an inverse linear logarithmic relationship between resource quantity and quality in the biosphere's energy transformation processes. The study highlights a consistent theory of hierarchical organization grounded in energetics, setting constraints to illusions of unlimited growth.
