Article
Polymer Science
Alina Raditoiu, Valentin Raditoiu, Monica Florentina Raduly, Augusta Raluca Gabor, Adriana Nicoleta Frone, Maria Grapin, Mihai Anastasescu
Summary: Obtaining photocatalytic coatings on textile materials is challenging due to the conflicting properties that need to be achieved. This study proposes a solution using hybrid silica films generated by sol-gel processes, containing TiO2 sensitized with iron (III) phthalocyanine (FeTCPc). The coatings were made using a pad-dry-cure process with various agents. Experimental results show that treatment with BORAX improves the resistance of the coatings to wet treatments but impairs their photocatalytic performances.
Article
Materials Science, Ceramics
Marcelo Sandrini, Jefferson Cristiano Gemelli, Mariana Sversut Gibin, Vitor Santaella Zanuto, Robson Ferrari Muniz, Fabio Simoes de Vicente, Marcos Paulo Belancon
Summary: This study presents the preparation of high optical quality GPTS/TEOS monolithic xerogels doped with cerium using the sol-gel process, which can be an alternative for blocking UV incidence and extending the operating lifetime of photovoltaic panels.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Ceramics
Sofia F. Soares, Ana L. Daniel-da-Silva, Tito Trindade
Summary: This study demonstrates the successful modification of hybrid siliceous materials with transition metals (TM = Co2+, Ni2+, Cu2+, Zn2+) using a sol-gel method with the polysaccharide kappa-carrageenan as a precursor. Structural analysis and characterization studies were conducted, and the effects of the TM ions on the properties of the hybrids were assessed. The results show that the modification with TM induces changes in the morphological, optical, and thermal properties of the hybrids compared to the unmodified analogs, indicating the practical applicability of the sol-gel method for modifying the properties of host particles.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
S. N. C. Santos, K. T. Paula, F. A. Couto, M. H. M. Facure, D. S. Correa, C. R. Mendonca
Summary: This study demonstrates, for the first time, the fabrication of Type II waveguides in transparent silica xerogel using femtosecond laser micromachining. Different modes of the waveguides were confirmed by finite elements simulation and guiding losses were observed to be similar to other materials.
Article
Chemistry, Multidisciplinary
Luigi Vertuccio, Liberata Guadagno, Antonio D'Angelo, Veronica Viola, Marialuigia Raimondo, Michelina Catauro
Summary: Inorganic/organic silica/polyethylene glycol/caffeic acid hybrid systems were synthesized to prevent inflammatory and infectious phenomena of medical devices. The sol-gel synthesis condition resulted in the oxidizing phenomenon of caffeic acid. The antimicrobial activity and kinetic release of the synthesized biomaterials were investigated.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Biomedical
Justin J. Chung, Jin Yoo, Brian S. T. Sum, Siwei Li, Soojin Lee, Tae Hee Kim, Zhenlun Li, Molly M. Stevens, Theoni K. Georgiou, Youngmee Jung, Julian R. Jones
Summary: Inorganic-organic hybrid biomaterials made with star polymer and silica are successfully 3D printed as bone substitutes, showing promising mechanical properties. The hybrid scaffolds are able to promote osteoblast cell adhesion in vitro and demonstrate osteogenic and angiogenic properties in a rat model.
ADVANCED HEALTHCARE MATERIALS
(2021)
Article
Polymer Science
Eliza Romanczuk-Ruszuk, Bogna Sztorch, Zbigniew Oksiuta, Robert E. Przekop
Summary: Two series of binary xerogel systems of Sr/Al with different molar ratios were synthesized using the sol-gel technique with metallic strontium precursor. The influence of the metallic precursor on the properties of the xerogel was investigated. The gels were characterized using various techniques and tested as supports for platinum catalysts. The results showed that the original synthesis method allowed for the obtainment of highly dispersed and stable strontium carbonate phases, resulting in a high dispersion of platinum nanoparticles.
Review
Nanoscience & Nanotechnology
Xiaotong Zhao, Yinxiao Du, Wei Li, Zebi Zhao, Ming Lei
Summary: This article provides a comprehensive review on the emerging integration and hybridization of organic/inorganic materials, covering their individual components, assembly fabrication, and state-of-the-art applications in electronic, optoelectronic, magnetic, and energy fields. Future opportunities and challenges of these hybrids are highlighted.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Review
Chemistry, Physical
Andrea Erigoni, Urbano Diaz
Summary: Organic-inorganic hybrid catalysts, especially those based on silica, have been extensively researched due to their combination of structural stability and versatility. This review focuses on the synthetic tools and chemistry behind the sol-gel syntheses of hybrid catalysts, as well as exemplificative studies on mono- and multi-functional silica-based catalysts with different active sites. Materials obtained through various approaches are compared in terms of properties and catalytic performances, aiming to provide useful information for researchers in the field.
Article
Polymer Science
Katrin Krupinski, Joerg Wagler, Erica Brendler, Edwin Kroke
Summary: Novel hybrid materials with Si-O-C bridges were obtained through condensation reactions of chlorosilanes (SiCl4 and CH3SiCl3) and bis(trimethylsilyl)ethers of rigid, quasi-linear diols (CH3)3SiO-AR-OSi(CH3)3 (AR = 4,4'-biphenylene and 2,6-naphthylene). Pyridine-catalyzed reactions led to soluble oligomers, while pyridine-catalyzed reactions with SiCl4 resulted in a Sol-Gel transition and the formation of xerogels. The xerogels exhibited low BET surface area and consisted of hydrolytically sensitive three-dimensional networks of SiO4-units linked by the arylene groups.
Article
Biochemistry & Molecular Biology
Adel Len, Giuseppe Paladini, Lorand Romanszki, Ana-Maria Putz, Laszlo Almasy, Krisztina Laszlo, Szabolcs Balint, Andraz Krajnc, Manfred Kriechbaum, Andrei Kuncser, Jozsef Kalmar, Zoltan Dudas
Summary: A multi-analytical approach was used to study organically modified silica-based xerogels, revealing significant differences in structure and properties based on different levels of methyl substitution. Understanding these structural properties facilitates tailoring the pore network for specific biological/medical applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Physical
Jinrui Li, Mengjun Chen, Shida Hou, Luyao Zhao, Tianyi Zhang, Anning Jiang, Hongguang Li, Jingcheng Hao
Summary: This study proposes a strategy to effectively enhance the NLO properties of fullerene-based fullerenols through metal coordination, increasing electron delocalization of the hybrid through metal-ligand charge transfer. Reverse saturated absorption and optical limiting properties are clearly observed in the composite film. The results demonstrate that this strategy holds promising applications in the field of nonlinear optics.
Article
Chemistry, Applied
Alvaro G. Braz, Sandra H. Pulcinelli, Celso V. Santilli
Summary: This study investigates glycerol as a crosslinker for polyurethane segments hybridized with a silica network for protective coatings. Evaluations were made on the structure, thermal stability, and corrosion protection of the coatings at different APTES/4,4'-MDI molar ratios, confirming the suitability of the PU-silica hybrid for anticorrosive thin coatings to protect metal alloys against corrosion.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Applied
Alvaro G. Braz, Sandra H. Pulcinelli, Celso Santilli
Summary: This study investigates the use of glycerol as a crosslinker for polyurethane, which is hybridized with a silica network. The results show that this organic-inorganic hybrid coating can effectively enhance the corrosion resistance of metal alloys.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Biochemistry & Molecular Biology
Michelina Catauro, Antonio D'Angelo, Veronica Viola, Giovanna Cimmino, Severina Pacifico
Summary: Organic-inorganic hybrid materials were synthesized using a sol-gel route, incorporating silicon alkoxide, low molecular weight polycaprolactone, and caffetannic acid. The hybrids were characterized using scanning Fourier-transform infrared spectroscopy and scanning electron microscopy, and their antiradical capacity, as well as effects on bacterial growth, were evaluated. The formation of a biologically active hydroxyapatite layer on the surface of the hybrids was observed. Biocompatibility with NIH-3T3 fibroblast cells was demonstrated, but cytotoxicity towards colon, prostate, and brain tumor cell lines was also observed. These findings provide valuable insights into the potential applications of the synthesized hybrids in the medical field.
Article
Materials Science, Ceramics
Deniz Bozoglu, Sahin Yakut, Kemal Ulutas, Deniz Deger
Summary: Thin film polyethylene oxide, produced by the thermal evaporation technique, exhibits structural and property differences compared to bulk polyethylene oxide. The dielectric constant of polyethylene oxide thin film is 10 times greater than that of bulk polyethylene oxide. There is consistency among dielectric constants, activation energies, and free volume fractions for both thin film and bulk samples. Polyethylene oxide thin film is observed to be more brittle than bulk polyethylene oxide.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Xiaozhen Fan, Zhuo Wang, Zheng Fang, Huiqun Ye, Jinju Zheng, Jianqiang Zhang, Yanjun Qin, Yao Zhai, Yanlong Miao, Zixiang Zhao, Can Yang, Jiajun He, Zhenghang Wei, Yunzhang Fang
Summary: The microscopic strain evolution and microstructural of FeCuNbSiB amorphous alloy samples were studied under both free and tensile stress annealing conditions. It was found that an amorphous-nanocrystalline structure was developed in both samples after annealing at 813 K, and the size of nanocrystals was limited by the applied stress.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Atsushi Tanaka, Atsuki Saito, Takashi Murata, Ayako Nakata, Tsuyoshi Miyazaki
Summary: Although molecular dynamics (MD) simulation is a powerful tool for investigating the atomic-scale structures of complex materials, its reliable and accurate application to multi-component glass systems faces challenges due to limited force fields (FFs) and the complexity of chemical environments. This study demonstrates the feasibility of efficient and accurate large-scale density functional theory (DFT) calculations for multi-component glass systems. The evaluation of classical FFs based on the results of large-scale DFT calculations reveals low accuracy for non-bridging oxygen atoms, and differences in Si-O-Si angle distribution and electronic structure for X = Mg.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Petr Shvets, Ksenia Maksimova, Aleksandr Goikhman
Summary: In this study, vanadium oxide xerogel samples were successfully synthesized through a liquid phase reaction and the interaction of films with water. The samples were thoroughly analyzed using X-ray diffraction and Raman spectroscopy, revealing the existence of two distinct phases. It was also discovered that previous misinterpretations regarding the high-pressure polymorph structure were due to the formation of a high-temperature phase. These findings highlight the potential for further refining and expanding the current structural models of vanadium oxide xerogel in future research efforts.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Yiran Zhang, Jing Pang, Qingchun Xiang, Dong Yang, Yinglei Ren, Xiaoyu Li, Keqiang Qiu
Summary: The effect of the volume fraction of body-centered cubic (BCC) crystal on the room temperature brittleness of Fe-based amorphous nanocrystalline alloys was investigated. Molecular dynamics simulations were conducted to obtain seven model samples with different embedded BCC nanocrystal contents. The results showed a gradient decrease in the plasticity of the alloys with different nanocrystal contents.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Moustafa Sahnoune Chaouche, Hani K. Al-Mohair, Shavan Askar, Barno Sayfutdinovna Abdullaeva, Naseer Ali Hussien, Ahmed Hussien Alawadi
Summary: In this work, a novel micromechanical data-driven machine learning framework was proposed to characterize material parameters in bulk metallic glasses. The framework utilized nanoindentation simulations with Berkovich and spherical tips to compile a vast collection of data on material behavior in BMGs. The developed machine learning model efficiently predicted critical material properties and highlighted the importance of input feature weight functions.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Louisiane Verger, Vinuyan Ganesaratnam, Virginie Nazabal, Sebastien Chenu, Christophe Calers, David Le Coq, Laurent Calvez, Olivier Hernandez, Xiang-Hua Zhang
Summary: Crystallization in Ga, Sb, and Se glasses was studied, and a correlation between Se content, crystalline phases, and electrical conductivity was observed. The resulting glass-ceramics exhibited significantly higher conductivity compared to other Se-based glass-ceramics.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Seong-Sik Shin, Ga-Yeong Kim, Byeonggwan Lee, Jae-Hwan Yang, Yeon-Su Son, Jung-Hoon Choi, Jae-Young Pyo, Ki Rak Lee, Hwan-Seo Park, Hyun Woo Kang
Summary: In this study, silver tungstate-tellurite glass with different loading of AgI was developed for immobilization of radioactive iodine. The effects of increasing the amount of AgI on the glass matrix were investigated. The leaching properties of all samples were evaluated, and it was found that the release of all elements satisfied the US regulation.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Chunghee Nam
Summary: This study demonstrates the prediction performance of a CNN regression model for the magnetic entropy changes and transition temperatures of bulk metallic glasses with magnetocaloric effects. The model achieved high prediction performance, as measured by the determination coefficient and root mean square error. The results showed good agreement with experimental values and reported results.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
A. Hosny, Y. M. Moustafa, G. El-Damrawi
Summary: In this study, crystalline glass ceramics were obtained directly from glasses using an ion exchange process between lead bromide and oxygen ions. The addition of lead bromide caused significant changes in the glass structure and the formation of specific crystalline phases.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Luana Cristina Feitosa Alves, Jheimison Ferreira Gomes, Natacya Fontes Dantas, Maria Nayane Queiroz, Pablo Nabuco Portes, Francielle Sato, Nilma de Souza Fernandes, Karina Miyuki, Celso Vataru Nakamura, Alysson Steimacher, Franciana Pedrochi
Summary: This study evaluated the influence of CaF2 addition on the bioactivity of the samples. The results showed that the samples exhibited good bioactivity and cytocompatibility, making them suitable for biomedical applications.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
N. Keninger, S. Feller
Summary: The principles of Topological Constraint Theory (TCT) were used to study alkali borate and silicate glass systems. Structural models were developed based on experimental data and used to predict properties of the glass.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Hao Wang, Chengliang Zhao, Chuntao Chang, Shengli Zhu, Zhankui Zhao
Summary: The relationship between the heterogeneous structure and structural relaxation in metallic glasses was explored by investigating the quasielastic and viscoelastic behavior of a Zr55Cu30Ni5Al10 metallic glass. Stress-annealing treatment was used to retain elastic strain energy, and a unique creep recovery phenomenon was observed during the reheating process. The Maxwell model was employed to qualitatively describe the mechanisms of elastic strain energy retention and release.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Sihyung Lee, Giyeol Han, Karuppasamy Pandian Marimuthu, Hyungyil Lee
Summary: This study presents a method for extracting FVM parameters of Zr-based TFMG using MD and FEA, and validates the method through simulation and experiments.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Nedra Saad, Mohamed Haouari, Mayssa Ibrahim, Noura Amamou
Summary: In this work, we investigated the optical properties of a fluorophosphate glass system doped with Tb3+ and Eu3+ ions. We found that the emitted light can be tuned by changing the doping concentration, excitation wavelength, or excitation power, which is important for the design of solid-state lighting sources.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)