Fabrication and characterization of composite PMMA/HA scaffold using freeze casting method

2021 ◽  
pp. 1-8
Author(s):  
Gurdev Singh ◽  
Soundarapandian Santhanakrishnan
Keyword(s):  
Freeze Casting ◽  
Casting Method ◽  
Fabrication And Characterization

Fabrication and Characterization of MMCs Using Stir Casting Method

2014 ◽  
Vol 4 (3) ◽  
pp. 27-32
Author(s):  
Jeevan Singh Bisht ◽  
◽  
Akshay Dvivedi ◽  
Apurbba Kumar Sharma ◽  
◽  
...  
Keyword(s):  
Stir Casting ◽  
Casting Method ◽  
Fabrication And Characterization

Fabrication and characterization of collagen–hydroxyapatite-based composite scaffolds containing doxycycline via freeze-casting method for bone tissue engineering

2018 ◽  
Vol 33 (4) ◽  
pp. 501-513 ◽  
Author(s):  
Hossein Semyari ◽  
Majid Salehi ◽  
Ferial Taleghani ◽  
Arian Ehterami ◽  
Farshid Bastami ◽  
...  
Keyword(s):  
Cellular Response ◽  
Composite Scaffold ◽  
Precipitation Method ◽  
Structural Isomer ◽  
Freeze Casting ◽  
Hydroxyapatite Nanoparticles ◽  
Casting Method ◽  
Defect Model ◽  
Co Precipitation

In this study, hydroxyapatite nanoparticles containing 10% doxycycline, a structural isomer of tetracycline, was prepared by the co-precipitation method. It was added to collagen solution for the preparation of the scaffold with freeze-casting method in order to develop a composite scaffold with both antibacterial and osteoinductive properties for repairing bone defects. The scaffolds were evaluated regarding their morphology, porosity, degradation and cellular response. The scaffolds for further investigation were added in a rat calvaria defect model. The study showed that after eight weeks, the bone formation was relatively higher in the collagen/nano-hydroxyapatite/doxycycline group with completely filled defect when compared with other groups. Histopathological evaluation showed that the defect in the collagen/nano-hydroxyapatite/doxycycline group was fully replaced by the new bone and connective tissue. Our results provide evidence supporting the possible applicability of doxycycline-containing scaffolds for successful bone regeneration.

Preparation and characterization of the three-dimensional network mullite porous fibrous materials by pressure and freeze-casting method

2019 ◽  
Vol 45 (3) ◽  
pp. 3954-3960 ◽  
Author(s):  
Fei He ◽  
Wenjie Li ◽  
Liang Zhou ◽  
Lijuan Yang ◽  
Hongbo Zhao ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Fibrous Materials ◽  
Freeze Casting ◽  
Casting Method ◽  
Dimensional Network

Fabrication and Characterization of PLLA/Chitosan/Nano Calcium Phosphate Scaffolds by Freeze-Casting Technique

2012 ◽  
Vol 51 (27) ◽  
pp. 9241-9249 ◽  
Author(s):  
Mahboubeh Jafarkhani ◽  
Alireza Fazlali ◽  
Fathollah Moztarzadeh ◽  
Zoha Moztarzadeh ◽  
Masoud Mozafari
Keyword(s):  
Calcium Phosphate ◽  
Freeze Casting ◽  
Casting Technique ◽  
Fabrication And Characterization

scholarly journals Fabrication and Characterization of Chitosan-Polypyrrole/Strontium-Magnesium Substituted Hydroxyapatite Biocomposite with Potential Application in Tissue Engineering Scaffolds

2020 ◽  
Vol 32 (12) ◽  
pp. 3113-3119
Author(s):  
P. Lavanya ◽  
N. Vijayakumari ◽  
R. Sangeetha ◽  
G. Priya
Keyword(s):  
Solvent Casting ◽  
Osteoblast Cell ◽  
Casting Method ◽  
Tissue Engineering Scaffolds ◽  
Osteoblast Cells ◽  
Good Antibacterial Activity ◽  
Osteoblast Cell Line ◽  
Fabrication And Characterization ◽  
Sem Morphology

Biocomposite scaffolds of strontium-magnesium substituted hydroxyapatite (SMHA) with a mixture of chitosan/polypyrrole (CS-PPY) have been prepared by solvent casting method. The synthesized SMHA nanoparticles and biocomposite scaffold were characterized by FTIR, XRD and SEM techniques. The SEM morphology revealed the porous structure of the scaffolds designed for the muticomponents. The biomineralization and cell viability of the biocomposite were assessed via alkaline phosphatase activity and MTT assay on the osteoblast cell line. The study demonstrated improved differentiation and mineralization of osteoblast cells in the designed biocomposite scaffolds. The dye stained fluorescent microscopic photographs apparent the good scattering and permeability of cells onto the scaffolds. However, biocomposite demonstrated good antibacterial activity and the excellent biocompatibility against osteoblast cells offers a possible route for the production of a biocomposite as a viable replacement for regenerative medicine scaffolding substance.

scholarly journals Development and Characterization of Bioactive Poly(butylene-succinate) Films Modified with Quercetin for Food Packaging Applications

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1798
Author(s):  
Łukasz Łopusiewicz ◽  
Magdalena Zdanowicz ◽  
Szymon Macieja ◽  
Krzysztof Kowalczyk ◽  
Artur Bartkowiak
Keyword(s):  
Food Packaging ◽  
Casting Method ◽  
Film Properties ◽  
Butylene Succinate ◽  
Active Food Packaging ◽  
Liquid Systems ◽  
Bactericidal Activities ◽  
Fabrication And Characterization ◽  
And Staphylococcus Aureus

The preparation of biodegradable active packaging materials is still a major challenge. Here, we report the fabrication and characterization of poly(butylene succinate)-based (PBS) films enriched with a natural polyphenolic antioxidant—quercetin. The PBS-based films with various quercetin content (0.05; 0.10; 0.25 and 0.50 pph on PBS) were prepared via a solvent casting method. Physical (optical, mechanical, thermal, moisture and water sorption, water vapor and UV–vis barrier) and biofunctional (antioxidant and antibacterial against Escherichia coli and Staphylococcus aureus) film properties were tested. The migration of quercetin into model food liquid systems was determined. As a result of quercetin addition, significant changes in color, opacity and UV-blocking effect were observed. The presence of the active substance did not significantly affect the thermal properties of the PBS matrix. However, the mechanical properties of the films were slightly decreased. The films exhibited excellent free radicals (DPPH, ABTS, O2−) scavenging and some bactericidal activities. PBS-quercetin films with superior functional properties have many possibilities for active food packaging applications.

Fabrication and Characterization of Polyoxometalate based Nano-hybrids: Evaluation of their role in Biological Activity

2019 ◽  
Vol 35 (4) ◽  
pp. 475-484
Author(s):  
SHIVA ARUN ◽  
◽  
PRABHA BHARTIYA ◽  
AMREEN NAZ ◽  
SUDHEER RAI ◽  
...  
Keyword(s):  
Biological Activity ◽  
Fabrication And Characterization
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