A5078399131- Bone Tissue Engineering Materials
- Dental Implant Techniques and Outcomes
- Polymer composites and self-healing
- biodegradable polymer synthesis and properties
- 3D Printing in Biomedical Research
- Electrospun Nanofibers in Biomedical Applications
- Natural Fiber Reinforced Composites
- Dental materials and restorations
- Additive Manufacturing and 3D Printing Technologies
- Spine and Intervertebral Disc Pathology
- Magnesium Oxide Properties and Applications
- Graphene and Nanomaterials Applications
- Conducting polymers and applications
- Copper Interconnects and Reliability
- Calcium Carbonate Crystallization and Inhibition
- Metal and Thin Film Mechanics
- ZnO doping and properties
- Bone health and treatments
- Facial Trauma and Fracture Management
- Synthetic Organic Chemistry Methods
- Engineering Technology and Methodologies
- Epoxy Resin Curing Processes
- Chalcogenide Semiconductor Thin Films
- High-Temperature Coating Behaviors
- Chemical Synthesis and Characterization
Universitatea Națională de Știință și Tehnologie Politehnica București
2016-2024
The main objective was to produce 3D printable hydrogels based on GelMA and hydroxyapatite doped with cerium ions potential application in bone regeneration. first part of the study regards substitution Ca
As bone diseases and defects are constantly increasing, the improvement of regeneration techniques is evolving. The main purpose this scientific study was to obtain investigate biomaterials that can be used in tissue engineering. In respect, nanocomposite inks GelMA modified with hydroxyapatite (HA) substituted Mg Zn were developed. Using a 3D bioprinting technique, scaffolds varying shapes dimensions obtained. following analyses order materials obtained by printing technique: Fourier...
This study explores the potential utilization of walstromite (BaCa2Si3O9) as a foundational material for creating new bioceramics in form scaffolds through 3D printing technology. To achieve this objective, investigates chemical–mineralogical, morphological, and structural characteristics, well biological properties, walstromite-based bioceramics. The precursor mixture synthesis is prepared sol–gel method, utilizing pure reagents. resulting dried gelatinous precipitate analyzed complex...
The activities of this paper were focused on an in-situ fabrication process for producing two self-healing systems containing dicyclopentadiene and 5-ethylidene-2-norbornene monomers encapsulated in a urea-formaldehyde shell integration methods applied the epoxy matrix to analyse compare influences their into neat matrix. first synthesized according literature review, subsequently, optimization was conducted process. Neat specimens fabricated as reference subjected flexural tests. Several...
The paper addresses the synthesis of a nano-fibre network by coaxial electrospinning, embedding healing agent dicyclopentadiene (DCPD) in polyacrylonitrile (PAN) fibres. Compared to other encapsulation methods, use nano-fibres filled with have no effect on mechanical properties matrix and can address larger area. Additionally, carbon nanotubes were added as nanofillers enhance reactivity between DCPD epoxydic matrix. self-healing capability was carried out flexural tests, at epoxy resin...
Abstract In this study, chemical precipitation methods were used to obtain ceramic materials doped with magnesium ions in order improve the regeneration properties of for tissue engineering. Two different ratios oxide dope powder, more precisely 5% and 10%. The synthesized characterized determine calcination temperature precursor powder by means thermal analysis; mineralogical composition, X‐ray diffraction was employed scanning electron microscopy microstructure. To make use these ceramics...
Bioglass (BG) is a class of biomaterials increasingly approached in biomedical applications, such as regeneration hard tissues, due to the properties bioactivity, osteoinductivity, osteoconductivity, but also high rate biodegradation, both vitro and vivo. The present paper addresses obtaining bioglasses from ZnO(MgO)-CaO-SiO2-P2O5 system by sol-gel method use surfactant ensure specific surface or open porosity, starting S53P4 bioglass (53% SiO2, 23% Na2O, 20% CaO, 4% P2O5), known BoneAlive®....
Mesoporous bioactive glass nanoparticles (MBGNs) are widely recognized for their ability to bond hard tissue, while the ions released from BG structure enhance specific cellular pathways. In this study, SiO2-P2O5-CaO-MgO-ZnO system was used successfully synthesize MBGNs by a microemulsion-assisted sol-gel method. The calcinated at 600 °C/3 h had typical phosphosilicate together with poorly crystalline hydroxyapatite (HAp). addition of ZnO not only led higher degree crystallinity HAp but also...
In this paper, ZnO and Co2+/Mg2+-doped thin films on TiAlV alloy substrates were obtained. The deposited by spin coating of sol-gel precursor solutions thermally treated at 600 °C for 2 h, in air slow cooled. doping ions concentration was 1.0 mol%. study’s aim to obtain implantable metallic materials with improved biocompatibility antibacterial qualities. characteristics the assessed from point view microstructure, morphology, wetting properties, activity biological response presence...
The present paper is focused on evaluating the mechanical characterization of dicyclopentadiene (DCPD) and 5-ethylidene-2-norbornene (ENB) healing systems synthetized by in-situ polymerisation. Both were embedded in glass fibre reinforced polymer (GFRP) composite subjected to three-point bending test regime. Microstructural FT-IR analysis showed formation microcapsules a successful integration material. To observe influence temperature variation, some specimens exposed thermal cycling (-20oC...
The present paper was focused on studying the influence of shelf life an epoxy matrix mechanical properties glass fibre reinforced composites. For study, two types same system were used, one during its and out life. reinforcement used consisted in E-glass fabric. Mechanical investigations realized order to compare materials terms loss strength elastic properties. Therefore, three tests performed: tensile tests, in-plane shear open-hole tests. results showed that affects polymeric composite....
The aim of this work was to make scaffolds based on β-tricalcium phosphate (TCP) and bioglass (BG) by the method replicating a polymeric sponge. Initially, ceramic powders were obtained co-precipitation sol-gel method. Subsequently, used obtain porous structures. Different compositions varying TCP/BG ratio. Finally, subjected thermal process burn sponge second step implied sintering structure. tested evaluate morphology, mechanical bioactive properties also biologically characterized in vitro tests.
The present work focused on the synthesis and characterization of scaffold type biomaterials based calcium silicate doped with magnesium ions for bone regeneration potential applications in tissue engineering. Starting from idea that silicate, a structure, presents relatively weak mechanical properties fast degradation rate, it was considered to dope obtain materials improved biological points view, which can be an alternative classical methods regeneration. Magnesium selected because plays...
Bioceramics are the most promising materials used for hard tissue reconstruction. In this study, wollastonite/hydroxyapatite (HAp/WS)-type composite ceramic structures were synthesized with aim of reaching a material improved properties use in bone regeneration. The scaffolds using foam replica method, starting from powders different mass ratios. These subsequently studied and compared to identify ideal ratio terms bioactive character, appropriate mechanical properties, but also...