A5101454068- Bone Tissue Engineering Materials
- Magnesium Alloys: Properties and Applications
- Additive Manufacturing and 3D Printing Technologies
- Aluminum Alloys Composites Properties
- Graphene and Nanomaterials Applications
- Dental materials and restorations
- Additive Manufacturing Materials and Processes
- Dental Implant Techniques and Outcomes
- Orthopaedic implants and arthroplasty
- High Entropy Alloys Studies
- Hydrogen Storage and Materials
- biodegradable polymer synthesis and properties
- Corrosion Behavior and Inhibition
- Titanium Alloys Microstructure and Properties
- Laser-Ablation Synthesis of Nanoparticles
- Electrospun Nanofibers in Biomedical Applications
- Calcium Carbonate Crystallization and Inhibition
- Microstructure and Mechanical Properties of Steels
- Metallic Glasses and Amorphous Alloys
- MXene and MAX Phase Materials
- Magnetic Properties and Applications
- Microstructure and mechanical properties
- Graphene research and applications
- Advanced materials and composites
- Facial Trauma and Fracture Management
Central South University
2015-2024
State Key Laboratory of High Performance Complex Manufacturing
2012-2023
Changsha University
2019
Hunan Cancer Hospital
2015
Abstract Polyetheretherketone (PEEK)/β‐tricalcium phosphate (β‐TCP) scaffolds are expected to be able combine the excellent mechanical strength of PEEK and good bioactivity biodegradability β‐TCP. While acts as a closed membrane in which β‐TCP is completely wrapped after melting/solidifying processing, degrades very little, hence cannot display biodegradability. The strategy reported here blend biodegradable polymer with fabricate multi‐material via selective laser sintering (SLS). first...
This review summarizes the current research status on biodegradable metals as bone implants, including their biodegradability, mechanical properties, and biocompatibility.
This study presented a unique process of mechanical alloying (MA) and laser powder bed fusion (LPBF) to prepare heterogeneous grain structure (HGS) Zn with strength-plasticity synergy. The results showed that the MA-treatment significantly refined sizes nano-scale contributed formation HGS powders. Moreover, ultra-fast heating cooling LPBF inhibited growth resulted in specific core/shell HGS, wherein cores (micron-grains) were surrounded by interconnected shells (nano-grains). Notably,...
It is critical to develop a fabrication technology for precisely controlling an interconnected porous structure of scaffolds mimic the native bone microenvironment. In this work, novel combined process additive manufacturing (AM) and chemical etching was developed fabricate graphene oxide/poly(L-lactic acid) (GO/PLLA) with multiscale structure. Specially, AM used network pore sizes hundreds microns. And in sodium hydroxide solution constructed pores several microns or even smaller on...
Magnetostrictive Fe–Ga alloys have been demonstrated potentialities for numerous applications, whereas, suffering a tradeoff between large magnetostrictive strain and high sensitivity. Herein, bulk polycrystalline Fe81Ga19 were prepared by laser-beam powder bed fusion (LPBF) then annealed in magnetic field manipulating the comprehensive properties. Results indicate that <001> oriented grains are developed LPBF-prepared due to temperature gradient. After annealing (MFA), domains within...
Graphene is a novel material and currently popular as an enabler for the next-generation nanocomposites. Here, we report use of graphene to improve mechanical properties nano-58S bioactive glass bone repair regeneration. And composite scaffolds were fabricated by homemade selective laser sintering system. Qualitative quantitative analysis demonstrated successful incorporation into scaffold without obvious structural damage weight loss. The optimum compressive strength fracture toughness...
In this study, nano-hydroxyapatite scaffolds with high mechanical strength and an interconnected porous structure were prepared using NTSS for the first time. The step was performed a laser characterized by rapid heating to skip surface diffusion obtain driving force grain boundary diffusion. Additionally, achieved SLS. second consisted of isothermal in furnace at lower temperature (T2) than that beam further increase density suppress growth exploiting difference kinetics between...
In present study, a strategy is presented to construct magnetic micro-environment in poly-l-lactide/polyglycolic acid (PLLA/PGA) scaffolds fabricated via selective laser sintering by incorporating Fe3O4 nanoparticles (MNPs), aiming enhance cell viability and promote bone regeneration. the micro-environment, each nanoparticle provides nanoscale field activate cellular responses. The results vitro demonstrated that not only stimulated adhesion viability, but also enhanced proliferation rate...
In this study, nano-hydroxypatite (n-HAP) bone scaffolds are prepared by a homemade selective laser sintering (SLS) system based on rapid prototyping (RP) technology. The SLS consists of precise three-axis motion platform and with its optical focusing device. implementation arbitrary complex movements the non-uniform rational B-Spline (NURBS) theory is realized in system. effects processing parameters microstructure n-HAP tested x-ray diffraction (XRD), Fourier transform infrared (FTIR)...
Abstract The poor bonding strength between biopolymer and bioceramic has remained an unsolved issue. In this study, graphene oxide (GO) was introduced as interface phase to improve the interfacial polyetheretherketone (PEEK) hydroxyapatite (HAP) for tissue engineering scaffolds. On one hand, conjugated structure of GO could form strong π-π stacking interaction with benzene rings in PEEK. other a negatively charge resulting from oxygen functional groups adsorb positively charged calcium atoms...
Iron (Fe) has been highly anticipated as a bone implant material owing to the biodegradability and excellent mechanical properties, but limited by slow degradation poor bioactivity. In this study, novel Fe-palladium (Pd)-bredigite biocomposites were developed selective laser melting aiming improve both behavior bioactivity of Fe. The results showed that most Pd formed Pd-rich intermetallic phases (IMPs) with nearly continuous network while bredigite phase was distributed at grain boundaries....
Graphene oxide (GO) can improve the degradation resistance of biomedical Mg alloy because its excellent impermeability and outstanding chemical inertness. However, weak interfacial bonding between GO matrix leads to easily detaching during degradation. In this study, in situ reaction induced by TiO2 took place AZ61–GO biocomposite enhance matrix. For specific process, was uniformly tightly deposited onto surface hydrothermal (TiO2/GO) first then used for fabricating AZ61–TiO2/GO...