Article
Optics
Vijay Singh, Ch. B. Annapurna Devi, Sumandeep Kaur, A. S. Rao, Neelam Singh
Summary: A series of Er3+-doped Sr2La8(SiO4)6O2 phosphors were successfully synthesized via the sol-gel route in this study. The results suggest the potential utility of the prepared oxyapatite structured phosphors for photonic device applications, emitting green light.
Article
Materials Science, Textiles
Ieva Bake, Silvija Kukle, Dana Belakova
Summary: This study investigates the properties of cotton/polyamide plain plated commercial socks and pure polyamide fabric after undergoing treatment with a sol-gel coating technique. Surface structural clarification, compound identification, and analysis of properties such as air permeability were conducted, along with pilot tests on antibacterial activity. Results showed the presence of sol-gel coating on the surface while maintaining material integrity.
JOURNAL OF ENGINEERED FIBERS AND FABRICS
(2021)
Article
Chemistry, Multidisciplinary
Valentina Petrelli, Maria Michela Dell'Anna, Piero Mastrorilli, Veronica Viola, Michelina Catauro, Antonio D'Angelo
Summary: Hybrid materials composed of organic and inorganic components at the nanometer or molecular level have been studied for their potential applications in the biological and medical fields. This study focuses on the synthesis and characterization of a sol-gel-derived hybrid material consisting of silica, polyethylene glycol, and the antioxidant flavonoid quercetin. The structural and biological properties of the hybrid systems were investigated by varying the concentrations of quercetin and polyethylene glycol, and results showed a controlled release of quercetin over time, indicating its potential use in drug delivery.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Multidisciplinary
Ahmed Ali, Mansour M. Hassan, G. Goda Mohammed, Hossam Youssef Abdel El-Hamid, Hilmy Awad
Summary: Nano-composites ceramic of (Al2O3/BaTiO3) were successfully fabricated by Sol. Gel. technique. The addition of Al2O3 changed the structure and particle size of BaTiO3, resulting in uniform distribution of nano-sized particles. The infrared, Raman, and UV/Vis spectroscopy revealed distinct peaks and splits for Al2O3/BaTiO3. Moreover, Al2O3 exhibited a significant effect on the dielectric properties of the composites.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Analytical
Guangyu Liu, Yujuan Hua, Ronda Gras, Jim Luong
Summary: An analytical strategy utilizing discrete frequency infrared imaging technique was developed to improve sample throughput in microplastic analysis. The concept demonstration study achieved high identification rates with a reduced scanning area, demonstrating the potential of this technique to enhance sample throughput.
ANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Ceramics
Rohi Zahra, M. Anis-ur-Rehman
Summary: The structural, electrical and dielectric properties of lithium doped magnesium ferrite nanoparticles were studied. The results showed that the doped samples exhibited improved conductivity and stability, making them suitable for applications in environmental, industrial and biomedical fields.
CERAMICS INTERNATIONAL
(2023)
Article
Biochemistry & Molecular Biology
Ignazio Blanco, Alberta Latteri, Gianluca Cicala, Antonio D'Angelo, Veronica Viola, Vincenzo Arconati, Michelina Catauro
Summary: This paper aims to synthesize a biomaterial usable in the medical field through the sol-gel method. The study evaluates the silica-PEG-quercetin system in relation to different concentrations of PEG and quercetin. FT-IR, SEM, and Kirby-Bauer analyses were performed to evaluate hybrid formation, morphological properties, and the ability to inhibit bacterial growth.
Article
Physics, Multidisciplinary
Ravindra N. Chikhale, S. A. Kanade, Pushpinder G. Bhatia
Summary: In this study, nanoparticles of Co0.75Ni0.25Fe2-zDyzO4 were prepared using the sol-gel auto-combustion method. The cation distribution and structure of the samples were confirmed, and the size and magnetic properties were investigated. The results showed that lattice strain affects the crystallite size and the nanoferrite exhibited ideal magnetic properties.
Review
Chemistry, Physical
Michelina Catauro, Stefano Vecchio Ciprioti
Summary: The interaction between tissues and biomaterials aims to improve and replace anatomical parts of the human body, but early implant failure remains a challenge due to the lack of optimal mechanical and chemical characteristics and biocompatibility. Bioactive glasses are recognized as fine substances for repair and replacement, interacting with living bones through the formation of a hydroxyapatite layer. The composition and synthesis method of bioglasses significantly affect their biological properties, with the sol-gel technique being the preferred method for preparing materials for various biomedical implants and applications, including nanoparticle systems for cancer therapy.
Article
Materials Science, Textiles
Armaghan Naderi, Genevieve Palardy
Summary: Polymeric biomaterials, such as PEEK and cellulose, have shown promise as scaffolds for bone tissue engineering. This study investigated the microstructure and mechanical behavior of HA-coated meshes, fabrics, and mats. The results demonstrated potential stability and improved mechanical properties for HA-coated cellulose mats and PEEK meshes, making them suitable for implant applications and bone regeneration.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Polymer Science
Wei Chen, Zheng Xing, Ying Wei, Xinyuan Zhang, Qingguo Zhang
Summary: A quasi-solid-state gel-polymer electrolyte (GPE) for electrical double-layer capacitors (EDLCs) was developed using a mixture of poly (vinylidene fluoride-co-hexafluoro propylene) (PVDF-HFP) and ionic liquid 1-ethyl-3-methylimidazole tetrafluoroborate ([EMIM][BF4]). The GPE exhibited excellent transparency, high thermal safety, and outstanding electrochemical properties at room temperature. The results suggest the great potential of this ionic liquid-based GPE for EDLCs.
Article
Physics, Condensed Matter
Hajar Kheirdoust, Mohammad Niyaifar, Ahmad Hasanpour, Asma Pormehr, Hory Mohammadpour, Parviz Saeidi, Shahrokh Niyaifar
Summary: This study investigated the substitution of Y3+ by Gd3+ in gadolinium-doped yttrium iron garnet and its effects on the structural and magnetic properties. Various analytical techniques were used to determine the crystalline structures and magnetic behaviors of the samples, with a focus on the influence of Curie temperature (Tc) on the magnetic behavior.
SOLID STATE COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Cuilian Wen, Nuonan Bai, Lijin Luo, Jianxia Ye, Xuan Zhan, Yinggan Zhang, Baisheng Sa
Summary: Silicate bioglass is essential in bone engineering for its bioactivity and osteogenic effects. The study synthesized hydroxyapatite-like bioactive glass based on the xSiO2-CaO-P2O5 system and investigated its structural evolution, apatite-forming ability, and cytotoxicity. Higher heat treatment temperature and lower SiO2 content increase crystallinity tendency and sample compactness, with 30Si sample showing remarkable mesoporous structures and high specific surface area, demonstrating excellent hydroxyapatite formation and no inhibitory effect on hPDLCs.
CERAMICS INTERNATIONAL
(2021)
Article
Food Science & Technology
Danou Pao, Kanjana Thumanu, Jirawat Yongsawatdigul
Summary: The combination of ascorbic acid and hydrogen peroxide effectively enhanced the gelation of lizardfish and threadfin bream surimi by increasing disulfide bonds and hydrophobic interactions. The optimal concentration of each additive varied with fish species.
JOURNAL OF FOOD SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Armaghan Naderi, Bin Zhang, Jorge A. Belgodere, Kaushik Sunder, Genevieve Palardy
Summary: Hydroxyapatite (HA)-coated metals show potential for bone replacement and regeneration. This study designed biocompatible composite implants using a metal mesh substrate and HA coating. Experiments showed different coating methods, substrate materials, and mesh characteristics affected implant performance, but had no impact on HA coating crystal structure or shape.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Thermodynamics
Dan Vlase, Titus Vlase, Madalin Bunoiu, Paula Sfirloaga, Alexandra-Gabriela Ursut, Gabriela Vlase
Summary: This study analyzed pottery sherds and clay samples from an archaeological rescue dig in the Transilvania Highway. The analysis aimed to determine the composition similarities between pottery sherds and soil samples, as well as the local origin of raw materials and pottery technology.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Engineering, Chemical
Alexandra I. Bucur, Maria Poienar, Raul A. Bucur, Cristina Mosoarca, Radu Banica
Summary: This study investigates the structure, composition, thermal behavior, and surface thermal texturing of shells from Mytilus galloprovincialis, Mya arenaria, and Cerastoderma edule. Differences in crystalline composition were found depending on the species, and heat treatment led to the formation of a material with specific porosity and dimensional distribution. The surface modification of the shells increased surface reactivity without altering the natural hierarchical structure.
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Ceramics
Dan Vlase, Gabriela Vlase, Gabriela Ursut, Paula Sfirloaga, Florin Manea, Mihaela Budiul, Andrei Rotaru, Titus Vlase, Ion Creanga
Summary: This study aims to analyze pottery samples from the Foeni Tell - Orthodox Cemetery archaeological site in Romania. Results indicate that Foeni pottery was locally produced using a high plasticity clay and various minerals, with firing temperatures ranging from 550-600 degrees Celsius.
CERAMICS INTERNATIONAL
(2023)
Article
Thermodynamics
Cosmina Bengescu, Adriana Ledeti, Tudor Olariu, Denisa Circioban, Cornelia Muntean, Gabriela Vlase, Titus Vlase, Carmen Tomoroga, Anca Octavia Dragomirescu, Daniela Dascalu, Lenuta-Maria Suta, Ionut Ledeti, Marius Murariu
Summary: This study investigated ten samples containing promestriene (PRMS), including pure active pharmaceutical ingredient (API) and nine binary mixtures with commonly used excipients. The necessity of this study lies in the lack of reported physicochemical screening of PRMS in the literature. Additionally, the discontinuation of promestriene containing formulations in the Romanian pharmaceutical market since 2015, which caused health problems to a large number of patients, further supports the importance of this study. The results revealed that PRMS is compatible with all selected excipients, as confirmed by spectroscopy, X-ray diffraction patterns, and thermal analysis.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Thermodynamics
Mihaela Maria Budiul, Cristina Adela Marioane, Ionela-Amalia Bradu, Gabriela Vlase, Titus Vlase
Summary: A study was conducted to develop and characterize medicated jellies containing topiramate, using sodium alginate, gelatin, and pectin as gelling agents. The thermal behavior and potential interactions between topiramate, moist binary mixtures, and oral medicated jellies were analyzed using FTIR-UATR spectroscopy, UV-Vis spectroscopy, and thermogravimetry.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Chemistry, Multidisciplinary
Vasile Lozovan, Victor Ch. Kravtsov, Yurii M. Chumakov, Natalia V. Costriucova, Nikita Siminel, Oleg Petuhov, Titus Vlase, Gabriela Vlase, Alic Barba, Marina S. Fonari
Summary: Four new neutral metal-organic frameworks (MOFs) and three coordination complexes were synthesized using an azine-functionalized polymer synthesis strategy. These compounds exhibited diverse structures and optical properties, as well as demonstrated efficient capture of CO2 molecules.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Thermodynamics
Madalina Mateescu, Gabriela Vlase, Mihaela Maria Budiul, Bianca Denisa Cernusca, Titus Vlase
Summary: The objectives of this study were to formulate and evaluate medicated oral jellies containing Ambroxol HCl, the most commonly used mucolytic agent for chronic bronchitis, as well as medicated oral jellies containing Ibuprofen, a recognized nonsteroidal anti-inflammatory drug. The medicated jellies included different gelling agents such as gelatin, sodium alginate, and pectin. Compatibility studies were conducted to assess the interaction between Ibuprofen or Ambroxol and each component of the medicated jellies. Analysis was performed using FTIR-UATR and thermogravimetry.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Review
Biochemistry & Molecular Biology
Gheorghe Ilia, Vasile Simulescu, Nicoleta Plesu, Vlad Chiriac, Petru Merghes
Summary: Carbonyl olefinations are important organic syntheses for forming C=C bonds, often with high yields and excellent stereoselectivity. The Wittig reaction is a well-known carbonyl olefination method, involving the reaction between an aldehyde or ketone and a Wittig reagent. The use of ultrasound in these reactions, including modified Wittig syntheses, has been studied for green synthesis and improved yields and reaction times.
Article
Engineering, Chemical
Bianca Baul, Adriana Ledeti, Denisa Circioban, Amalia Ridichie, Titus Vlase, Gabriela Vlase, Francisc Peter, Ionut Ledeti
Summary: The stability of APIs and pharmaceutical formulations is crucial in pharmaceutical research and technology. Various factors such as light, air exposure, temperature, humidity, formulation composition, and packaging materials can affect the quality and stability of APIs and finished pharmaceutical products. This study analyzed the degradation kinetics of the antihypertensive drug moxonidine in different solid mixtures using FTIR spectroscopy and thermoanalytical methods. The results showed that excipients have a stabilizing effect on moxonidine, but the decomposition mechanism is complex.
Article
Thermodynamics
Dorinel Okolisan, Titus Vlase, Gabriela Vlase, Ionela-Amalia Bradu, Claudiu Avram
Summary: A new type of polysaccharide film containing amide-type anesthetics was synthesized in this study. The stability of these films suggests their potential use as carriers for local anesthesia.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Polymer Science
Ionela-Amalia Bradu, Titus Vlase, Madalin Bunoiu, Madalina Gradinaru, Alexandru Pahomi, Dorothea Bajas, Mihaela Maria Budiul, Gabriela Vlase
Summary: This study presents the synthesis of membranes based on anionic polysaccharides and cationic polysaccharides for transdermal delivery of methotrexate. The membranes suitable for the release of the active ingredient were validated through characterization.
Article
Plant Sciences
Adina-Elena Segneanu, Gabriela Vlase, Titus Vlase, Crina Andreea Sicoe, Maria Viorica Ciocalteu, Dumitru Daniel Herea, Ovidiu-Florin Ghirlea, Ioan Grozescu, Valentin Nanescu
Summary: The current nanomedicinal approach combines medicinal plants and nanotechnology to create new scaffolds with enhanced bioavailability, biodistribution, and controlled release. This study presents an innovative method for encapsulating herb in nanosized chitosan matrices, and investigates the properties and therapeutic effects of these nanocarriers. The results suggest that this new antioxidant vehicle has potential as a promising candidate in tumor therapeutic strategy.
Article
Polymer Science
Petru Merghes, Narcis Varan, Gheorghe Ilia, Iosif Hulka, Vasile Simulescu
Summary: In this study, the SEM-EDX method was used to investigate the structure and morphology of organic-inorganic hybrids containing zirconium, boron, and phosphorus compounds synthesized by the sol-gel method. The obtained hybrids showed high thermal stability and insolubility, making them suitable for applications at high temperatures. The hybrids exhibited complex 3D structures and formed organic-inorganic networks with various bridges, holding potential in catalysis, medicine, agriculture, energy storage, fuel cells, sensors, electrochemical devices, and supramolecular chemistry.
Article
Engineering, Biomedical
Florin Borcan, Titus Vlase, Gabriela Vlase, Roxana Popescu, Codruta M. Soica
Summary: The study aims to develop and characterize polyurethane particles for the delivery of nucleosides. The samples show suitable size, stable properties, good penetration and release performance. Further clinical trials are required to test the synthesized products.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
