A5061134104- Bone Tissue Engineering Materials
- Electrospun Nanofibers in Biomedical Applications
- Chemical Synthesis and Characterization
- Anodic Oxide Films and Nanostructures
- Nanocomposite Films for Food Packaging
- Adsorption and biosorption for pollutant removal
- Muon and positron interactions and applications
- Advanced Photocatalysis Techniques
- Vietnamese History and Culture Studies
- Ammonia Synthesis and Nitrogen Reduction
- Dental Implant Techniques and Outcomes
- Titanium Alloys Microstructure and Properties
- Nanoparticles: synthesis and applications
- Postharvest Quality and Shelf Life Management
- Magnesium Alloys: Properties and Applications
- Polymer Nanocomposite Synthesis and Irradiation
- Corrosion Behavior and Inhibition
- Cellular and Composite Structures
- Advanced Sensor and Energy Harvesting Materials
- Quantum Dots Synthesis And Properties
- Zeolite Catalysis and Synthesis
- MXene and MAX Phase Materials
- Pesticide and Herbicide Environmental Studies
- Luminescence Properties of Advanced Materials
- Advanced Glycation End Products research
Hanoi University of Science and Technology
2021-2024
Le Quy Don Technical University
2021-2024
Dalat University
2023
Vietnam Atomic Energy Instiute
2022
Hue University
2015
The present study investigates the effects of Er3+ doping content on microstructure and up-conversion emission properties CaTiO3: phosphors as a potential material in biomedical applications. x%Er3+ (x = 0.5, 1.0, 1.5, 2.0, 2.5, 3.0%) films were synthesized Ti substrates by hydrothermal reaction at 200 °C for 24 h. SEM image showed formation cubic nanorod with mean edge size value (1–5) μm. When excited 980 nm light, emitted strong green band weak red ions located 543, 661, 740 nm. film...
Abstract This study focuses on investigating the influence of current density (i) (A/dm 2 ) at values 0.5 A dm −2 , 1.0 1.5 and 2.0 A/dm surface structure nanotubular titanium dioxide (TiO in an ethylene glycol solvent containing a certain amount fluoride salt water. The observed via FESEM images reveals that different densities yield TiO structures, predominantly form anatase crystals. EIS CV measurements indicate i = layer exhibits corrosion resistance performance up to 90.06% compared...
This paper reports on the coating of heterostructured TiO2 nanopores/nanotubes Ti substrates by anodizing at high voltages to design surfaces for biomedical implants. As anodized voltage from 50 V 350 was applied, microstructure shifted regular nanotubes nanopores/nanotubes. In addition, dimension a function voltage. The electrochemical characteristics and were evaluated in simulated body fluid (SBF) solution. creation resulted significant increase BHK cell attachment compared that nanotubes.
In this study, strontium substituted hydroxyapatite (SrHA) was successfully deposited onto etched titanium substrates in H2SO4 and HCl solution. The deposition achieved by hydrothermal method immersing the a solution containing Ca(NO3)2.4H2O, NH4H2PO4, 5% Sr(NO3)2, followed heating at 200°C for 12 hours. X-ray diffraction (XRD) analysis confirmed that all SrHA coatings exhibited crystalline structure. Field-emission scanning electron microscopy (FE-SEM) revealed microstructure of exhibited....
This article focused on investigating the influence of current density morphology and structure silver nanoparticles (n-Ag) electrodeposited anodized titanium substrates (denoted as TiO 2 /Ti) surface. The /Ti substrate served cathodic electrode placed in an electrolyte solution containing ionic [Ag(NH 3 ) ] + complex solution. n-Ag/TiO samples were synthesized at densities ranging from 0.2 A/dm to 0.5 for 20 seconds room temperature. study performed morphological surface composition...
In this study, Maillard reaction products of chitosan-glucose (CTS/GC) solution were prepared from irradiated chitosan (CTS) depolymerised by Co-60 gamma irradiation and glucose (GC).The conditions investigated, particularly temperature, time CTS/GC ratio.The molecular weight (Mw) samples was determined gel permeation chromatography (GPC).The results showed that the in a non-H 2 O environment (in swollen state with water) decreased more slowly than CTS H due to synergistic effect using ,...
Hydroxyapatite (HAp) has been successfully coated on etched titanium substrates by hydrothermal method using solutions of Ca(NO3)2.4H2O, NH4H2PO4 at 200 oC for 12 h. Results obtained from measurements the modern physical methods FE-SEM and XRD showedhat structure HAp a regular hexagonal morphology belonging to space group P63/m. The degree nucleation development un-etched plates was lower than that plates. In vitro bioactivity HAp-coated testing SBF solution showed prospective results.
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Objective: To evaluate ultrasound characteristic imaging of gallbladder polyps. And to compare with the results surgery and histopathologyfor positive diagnosis Subjects methods: Study on 32 patients (14 male 18 female, mean age 43,5±18,5 years) clinical suggestion, polyp, -histopathology diagnosis. Cross-sectional descriptive study, from 5/2014 3/2015 at Hospital Hue Medical Pharmacy College. Results: Among patients, (56,2%) had postoperative histopathology chronic cholecystitis, 14 (43,8%)...
Oligochitosans (OCT) were prepared from chitosan (CTS) by gamma irradiation technique. The parameters affecting to the degradation studied. And then, OCT nanoparticles wereformed using method of tripolyphosphate (TPP) cross-linking. Effect concentration and molecular weight OCT, TPP on particle size formed also formation was verified Fourier transform infrared (FT-IR) spectrometer differential scanning calorimeter (DSC), morphology observed electron microscope (SEM), characteristics...
The present paper reports, for the first time, an application of positron annihilation spectroscopies (PAS) to systematically study formation lattice defects at atom scale (vacancy, divacancy), nanoporous structures (nanopores) and sites Mn4+ ions doped into K2SiF6 (KSFM) nanophosphors prepared using different solvents. KSFM materials were synthesized in presence sodium dodecyl sulphonate various solvents such as water, isopropanol, ethylacetate diethyl ether. Three main techniques PAS,...
In this study, irradiation technique was used to produce copolymer AAc-g-PVP with different ratios of acrylic acid (AAc) and polyvinyl pyrrolidone (PVP). The results showed that hydrogel AAc/PVP ratio 3:1 (w/w) had the highest gel content (94.88%) water swelling degree found be 4 g/g at an adsorbed dose 20 kGy. ability adsorb Pb2+, Cu2+, Mn2+,and Cd2+ ions have been carried out. Results on adsorption isotherm models show is consistent Langmuir model a high correlation coefficient...
Copolymer hydrogel (PVA-g-AA) having varied PVA (Polyvinyl alcohol) and AA (Acrylic acid) content is prepared by gamma induced radiation polymerization. The parameters affecting the gel fraction yield have been studied. swelling property are found to be 92.39 905% respectively at an absorbed dose of 20 kGy. Structural characteristics were determined Fourier Transform Infrared (FTIR) spectrometer Differential Scanning Calorimetry (DSC). surface morphology copolymer has studied with Electron...