A5004560085- Bone Tissue Engineering Materials
- Orthopaedic implants and arthroplasty
- Magnesium Alloys: Properties and Applications
- Dental materials and restorations
- Dental Implant Techniques and Outcomes
- Hydrogen Storage and Materials
- Aluminum Alloys Composites Properties
- Titanium Alloys Microstructure and Properties
- Advanced materials and composites
- Total Knee Arthroplasty Outcomes
- biodegradable polymer synthesis and properties
- Orthopedic Infections and Treatments
- Bone fractures and treatments
- Metal and Thin Film Mechanics
- Corrosion Behavior and Inhibition
- Electrospun Nanofibers in Biomedical Applications
- Endodontics and Root Canal Treatments
- Surgical Sutures and Adhesives
- Collagen: Extraction and Characterization
- Additive Manufacturing and 3D Printing Technologies
- Hip and Femur Fractures
- Hemostasis and retained surgical items
- Dental Erosion and Treatment
- Graphene and Nanomaterials Applications
- Hernia repair and management
Universitatea Națională de Știință și Tehnologie Politehnica București
2016-2025
Academy of Romanian Scientists
2020-2025
Iuliu Hațieganu University of Medicine and Pharmacy
2022
University of Bucharest
2009-2022
Romanian Academy
2020
University of Medicine and Pharmacy of Craiova
2019
Universitatea de Medicină, Farmacie, Științe și Tehnologie „George Emil Palade” din Târgu Mureș
2017
Carol Davila University of Medicine and Pharmacy
2016
The improved corrosion resistance, osteogenic activity, and antibacterial ability are the key factors for promoting large-scale clinical application of magnesium (Mg)-based implants. In present study, a novel nanocomposite coating composed inner hydroxide, middle graphene oxide, outer hydroxyapatite (Mg(OH)2/GO/HA) is constructed on surface Mg-0.8Ca-5Zn-1.5Ag by combined strategy hydrothermal treatment, electrophoretic deposition, electrochemical deposition. results material characterization...
The ideal biomaterials substitute for bone repair should possess the following characteristics: provide osteogenic, osteoinductive and osteoconductive properties; stimulate neo-angiogenesis process; absence of antigenic, teratogenic or carcinogenic reactions; avoid systemic toxicity complications; assure satisfactory support stability from mechanical properties point view; hydrophilic nature surface good interface with human bone; handling in clinical condition ability to be easy sterilized;...
The main objective of this research is to prove the viability obtaining magnesium (Mg) filled polylactic acid (PLA) biocomposites as filament feedstock for material extrusion-based additive manufacturing (AM). These materials can be used medical applications, thus benefiting all advantages offered by AM technology in terms design freedom and product customization. Filaments were produced from two PLA + vitamin E (α-tocopherol) compositions then test samples ACL (anterior cruciate ligament)...
Reconstruction of osteoporotic bone defects is a clinical problem that continues to inspire the design new materials.
Biodegradable alloys and especially magnesium-based are considered by many researchers as materials to be used in medicine due their biocompatibility excellent mechanical properties. have applications the medical field particular obtaining implants for small bones of feet hands, ankles, or joints. Studies shown that Mg, Zn, Ca found significant amounts human body contribute effectively efficiently healing process bone tissue. Due its biodegradability, magnesium alloys, including Mg–Ca–Zn...
This paper presents experimental results regarding the development of new alloys from binary ZnCu and ternary ZnCuMg systems. The had controlled chemical compositions were annealed at 300 °C 400 °C, with holding times 5 h 10 h, followed by air cooling. Mechanical properties (tensile strength, yield elongation, elastic modulus) determined. Structural analysis conducted after different heat treatments revealed that homogenization transforms dendritic structure into a granular intergranular...
In this study, a new class of heterogeneous membranes based on cellulose acetate (CA) polymer and complex filler clay-silica nanowires (SiO2NWs) was investigated for potential biomedical applications. SiO2NWs were synthesized using natural clay through facile sol–gel method dispersed in the solution by sonication 1.25, 2.5, 5% weight ratio to CA polymer. Membranes subsequently prepared via phase inversion precipitation water. The pristine membrane nanocomposites characterized different...
Magnesium alloys as bioresorbable materials with good biocompatibility have raised a growing interest in the past years temporary implant manufacturing, they offer steady resorption rate and optimal healing body. exhibits tensile strength properties similar to those of natural bone, which determines its application load-bearing mechanical medical devices. In this paper, we investigated biodegradation Mg-Zn-Mn biodegradable (ZMX410 ZM21) before after coating them hydroxyapatite (HAP) via...
Use of magnesium implants is a new trend in orthopedic research because it has several important properties that recommend as an excellent resorbable biomaterial for implants. In this study, the corrosion rate and behavior alloys during biodegradation process were determined by vitro assays, evolution hydrogen release, weight loss, further vivo assays (implantation rabbits' bone muscle tissue). these tests, we also used imaging assessments histological examination different tissue types near...
New materials are required for bone healing in regenerative medicine able to temporarily substitute damaged and be subsequently resorbed replaced by endogenous tissues. Taking inspiration from basic composition of the mammalian bones, composed collagen, apatite a number substitution ions, among them magnesium (Mg2+), this work, novel composite scaffolds collagen(10%)-hydroxyapatite (HAp)(90%) collagen(10%)-HAp(80%)-Mg(10%) were developed. The lyophilization was used composites preparation....
The rapid degradation of magnesium (Mg)-based implants in physiological environment limits its clinical applications, and alloying treatment is an effective way to regulate the rate Mg-based materials. In present study, three Mg alloys, including Mg-0.8Ca (denoted as ZQ), Mg-0.8Ca-5Zn-1.5Ag ZQ71) Mg-0.8Ca-5Zn-2.5Ag ZQ63), were fabricated by with calcium (Ca), zinc (Zn) silver (Ag). results obtained from electrochemical corrosion tests vitro evaluation demonstrated that alloys exhibited...