A5004012212- Magnesium Alloys: Properties and Applications
- Corrosion Behavior and Inhibition
- Orthopaedic implants and arthroplasty
- Bone Tissue Engineering Materials
- Advanced ceramic materials synthesis
- Aluminum Alloys Composites Properties
- Titanium Alloys Microstructure and Properties
- Infectious Aortic and Vascular Conditions
- ZnO doping and properties
- Electrospun Nanofibers in Biomedical Applications
- Gas Sensing Nanomaterials and Sensors
- Coronary Interventions and Diagnostics
- Metal and Thin Film Mechanics
- Advanced Photocatalysis Techniques
- Strong Light-Matter Interactions
- Perovskite Materials and Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Parallel Computing and Optimization Techniques
- Metal complexes synthesis and properties
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Aortic aneurysm repair treatments
- Esophageal and GI Pathology
- Crystal structures of chemical compounds
- Covalent Organic Framework Applications
Lifetech Scientific (China)
2012-2021
Harbin Engineering University
2012-2021
University of Chinese Academy of Sciences
2018
Shanghai Institute of Ceramics
2018
Chinese Academy of Sciences
2018
University of Iowa
2004-2009
University of California, Los Angeles
1991-2009
Hong Kong University of Science and Technology
2008
University of California, Irvine
2008
University of Hong Kong
2008
Abstract Magnesium-based biodegradable metals (BMs) as bone implants have better mechanical properties than polymers, yet their strength is roughly less 350 MPa. In this work, binary Zn alloys with alloying elements Mg, Ca, Sr, Li, Mn, Fe, Cu, and Ag respectively, are screened systemically by in vitro vivo studies. Li exhibits the most effective strengthening role Zn, followed Mg. Alloying leads to accelerated degradation, but adequate integrity can be expected for when considering fracture...
The new principle and technique to tune biodegradation rates of biomaterials is one the keys development regenerative medicine next-generation biomaterials. Biodegradable stents are new-generation medical devices applied in percutaneous coronary intervention, etc. Recently, both corrodible metals degradable polymers have drawn much attention biodegradable or scaffolds. It is, however, a dilemma achieve good mechanical properties appropriate degradation profiles. Herein, we put forward...
Relatively slow degradation rate and delayed osseointegration induced by excessive release of Zn2+ ions are two main disadvantages the use pure Zn ion bioabsorbable orthopedic implants. In light this, we designed a cathodic protection strategy incorporating Mg, acting as sacrificial anode, into to form Zn-Mg composites. The performance novel composites with regard behavior biocompatibility was evaluated systematically under in vitro vivo conditions. Macro-galvanic coupling that formed...
The high-temperature (over 1020 °C) polymorph of ZnS, wurtzite has been successfully prepared through a low-temperature (180 hydrothermal synthesis route in the presence ethylenediamine (en). effects en concentrations, reactant reaction temperatures, and times on crystal structures shapes ZnS have investigated. We demonstrated that showing rodlike morphology can be kinetically stabilized en, especially at high concentration under appropriate conditions. Besides phase evolution from hexagonal...
The highly aligned ZnO whiskers, which are grown by hydrothermal oxidation of metallic zinc plate in the presence ethylenediamine molecules, exhibit single and/or a few modes supernarrow spectral emissions (∼0.7 nm) at near 378 nm and negligible deep level defects emissions. Time-integrated time-resolved photoluminescence show that peaks due to laser action with an excitation threshold about 70 μJ/cm2 emission lifetime <30 ps. lasing is polarized along polarization direction. low...
Detection of in vivo biodegradation is critical for development next-generation medical devices such as bioresorbable stents or scaffolds (BRSs). In particular, it urgent to establish a nondestructive approach examine degradation new-generation coronary stent interventional treatment based on mammal experiments; otherwise not available semi-quantitatively monitor any clinical trial. Herein, we put forward semi-quantitative measure sirolimus-eluting iron scaffold (IBS) optical coherence...
A biodegradable coronary stent is expected to eliminate the adverse events of an otherwise eternally implanting material after vessel remodeling. Both biocorrodible metals and polymers have been tried as matrix new-generation stent. Herein, we utilized a metal–polymer composite combine advantages high mechanical strength adjustable degradation rate prepare After coating polylactide (PLA) on surface iron, iron was accelerated significantly owing decrease local pH resulting from hydrolysis...
A novel PDLLA-Zn-FeN BRS biodegrades completely after ~2 years in rabbits and humans, with excellent biocompatibility.
ZnO nanotree arrays were successfully grown in large scale using a one-step facile method. Their branches and trunks display special orientation relationship the new interface structure is revealed. They exhibit significantly enhanced photocatalysis when compared to P25 nonbranched micro/nanorods.
Comprehensive assessments of the cytotoxicity nitrided iron, a promising bioabsorbable metallic material, were conducted using in vitro methods. Extracting and standing experiments to determine factors influencing precipitation extract during extraction incubation. The MTT method, fluorescent staining, direct contact method used explore iron stent extracts, foils, their bulk corrosion products. extracting confirmed that medium available oxygen are crucial for incubation processes. In test,...
Absorption plays a pivotal role in the development of nutritional obesity. However, little is known about nutritional-obesity–related absorption augmentation. The aim this study was to observe morphological features villous fasting–refeeding (FaF) and After 48 h fasting, adult male Sprague Dawley (SD) rats were refed, their intestines sampled 2–6 after feeding. 20 weeks modeling, we collected obese rats. Samples processed observed under light microscope an...
Fully bioresorbable scaffolds have been designed to overcome the limitations of traditional drug-eluting stents (DESs), which permanently cage native vessel wall and pose possible complications. The ultrathin-strut sirolimus-eluting iron coronary scaffold system (IBS) shows comparable mechanical properties DESs exhibits an adaptive degradation profile during target healing, makes it a promising candidate in all-comers patient population. For implanted medical devices, magnetic resonance (MR)...
We hereby report hydrothermal syntheses of new microstructures semiconducting ZnO. Single-crystalline prismatic ZnO microboxes formed by nanowalls and hexagonal hollow microdisks closed plates with micron-sized inorganic fullerene-like structures have been made in a base-free medium through one-step synthesis the help n-butanol (NB). Structures morphologies products were confirmed results from powder X-ray diffraction scanning electron microscopy. NB has found to play crucial role growth...
Abstract As‐cast Ti– x Ge ( = 2, 5, 10, 20 wt %) binary alloys were produced in this work, and various experiments carried out to investigate the microstructure, mechanical properties, vitro electrochemical immersion corrosion behaviors as well cytotoxicity with as‐cast pure Ti control, aiming study feasibility of alloy system potential dental materials. The microstructure changes from single α‐Ti phase + 5 3 precipitation increase content. Mechanical tests show that Ti–5Ge has best...