scholarly journals Fabrication techniques involved in developing the composite scaffolds PCL/HA nanoparticles for bone tissue engineering applications

2021 ◽  
Vol 32 (8) ◽  
Author(s):  
Sivasankar Murugan ◽  
Sreenivasa Rao Parcha
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Freeze Drying ◽  
Composite Scaffold ◽  
Sol Gel ◽  
Bone Tissue Regeneration ◽  
Thermally Induced Phase Separation ◽  
Engineering Applications ◽  
Thermally Induced

AbstractA fine-tuned combination of scaffolds, biomolecules, and mesenchymal stem cells (MSCs) is used in tissue engineering to restore the function of injured bone tissue and overcome the complications associated with its regeneration. For two decades, biomaterials have attracted much interest in mimicking the native extracellular matrix of bone tissue. To this aim, several approaches based on biomaterials combined with MSCs have been amply investigated. Recently, hydroxyapatite (HA) nanoparticles have been incorporated with polycaprolactone (PCL) matrix as a suitable substitute for bone tissue engineering applications. This review article aims at providing a brief overview on PCL/HA composite scaffold fabrication techniques such as sol–gel, rapid prototyping, electro-spinning, particulate leaching, thermally induced phase separation, and freeze-drying, as suitable approaches for tailoring morphological, mechanical, and biodegradability properties of the scaffolds for bone tissues. Among these methods, the 3D plotting method shows improvements in pore architecture (pore size of ≥600 µm and porosity of 92%), mechanical properties (higher than 18.38 MPa), biodegradability, and good bioactivity in bone tissue regeneration.

scholarly journals 3D Printed Polycaprolactone/Gelatin/Bacterial Cellulose/Hydroxyapatite Composite Scaffold for Bone Tissue Engineering

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1962 ◽  
Author(s):  
Abdullah M. Cakmak ◽  
Semra Unal ◽  
Ali Sahin ◽  
Faik N. Oktar ◽  
Mustafa Sengor ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
3D Printing ◽  
Bone Tissue Engineering ◽  
Bacterial Cellulose ◽  
Bone Tissue ◽  
Composite Scaffold ◽  
Bone Tissue Regeneration ◽  
Engineering Applications ◽  
Bioactive Materials ◽  
Degradation Rates

Three-dimensional (3D) printing application is a promising method for bone tissue engineering. For enhanced bone tissue regeneration, it is essential to have printable composite materials with appealing properties such as construct porous, mechanical strength, thermal properties, controlled degradation rates, and the presence of bioactive materials. In this study, polycaprolactone (PCL), gelatin (GEL), bacterial cellulose (BC), and different hydroxyapatite (HA) concentrations were used to fabricate a novel PCL/GEL/BC/HA composite scaffold using 3D printing method for bone tissue engineering applications. Pore structure, mechanical, thermal, and chemical analyses were evaluated. 3D scaffolds with an ideal pore size (~300 µm) for use in bone tissue engineering were generated. The addition of both bacterial cellulose (BC) and hydroxyapatite (HA) into PCL/GEL scaffold increased cell proliferation and attachment. PCL/GEL/BC/HA composite scaffolds provide a potential for bone tissue engineering applications.

Preparation of PLLA/HAP/β-TCP Composite Scaffold for Bone Tissue Engineering

2014 ◽  
Vol 513-517 ◽  
pp. 143-146 ◽  
Author(s):  
Xue Jun Wang ◽  
Tao Lou ◽  
Jing Yang ◽  
Zhen Yang ◽  
Kun Peng He
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Lactic Acid ◽  
Phase Separation ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Composite Scaffold ◽  
Thermally Induced Phase Separation ◽  
Composite Scaffolds ◽  
Thermally Induced

In this study, a nanofibrous poly (L-lactic acid) (PLLA) scaffold reinforced by Hydroxyapatite (HAP) and β-tricalcium phosphate (β-TCP) was fabricated using the thermally induced phase separation method. The composite scaffold morphology showed a nanofibrous PLLA matrix and evenly distributed β-TCP/HAP particles. The composite scaffold had interconnective micropores and the pore size ranged 2-10 μm. Introducing β-TCP/HAP particles into PLLA matrix significantly improved the mechanical properties of the composite scaffold. In summary, the new composite scaffolds show a great deal promise for use in bone tissue engineering.

PCL and PCL/PLA Scaffolds for Bone Tissue Regeneration

2013 ◽  
Vol 683 ◽  
pp. 168-171 ◽  
Author(s):  
Tatiana Patrício ◽  
Antonio Gloria ◽  
Paulo J. Bártolo
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Tissue Regeneration ◽  
Cell Attachment ◽  
Bone Tissue Regeneration ◽  
Engineering Applications ◽  
Printing System

This paper investigates the use of PCL and PCL/PLA scaffolds, produced using a novel additive biomanufacturing system called BioCell Printing, for bone tissue engineering applications. Results show that the BioCell Printing system produces scaffolds with regular and reproducible architecture, presenting no toxicity and enhancing cell attachment and proliferation. It was also possible to observe that the addition of PLA to PCL scaffolds strongly improves the biomechanical performance of the constructs.

scholarly journals Development of Fe3O4 integrated polymer/phosphate glass composite scaffolds for bone tissue engineering

2020 ◽  
Vol 1 (9) ◽  
pp. 3466-3475
Author(s):  
Raji Govindan ◽  
Sekar Karthi ◽  
Govindan Suresh Kumar ◽  
Easwaradas Kreedapathy Girija
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Phosphate Glass ◽  
Freeze Drying ◽  
Composite Scaffold ◽  
Glass Composite ◽  
Composite Scaffolds

A multifunctional Fe3O4 integrated polymer/phosphate glass composite scaffold is developed using a freeze drying technique for tissue engineering.

Production of Bioactive Nano-Hydroxyapatite/Polysaccharide Composites for Bone Tissue Engineering

2008 ◽  
Vol 587-588 ◽  
pp. 22-26
Author(s):  
Ana L. Daniel-da-Silva ◽  
A.M. Gil ◽  
Rui N. Correia
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Freeze Drying ◽  
Mechanical Performance ◽  
Calcium Phosphates ◽  
Thermally Induced ◽  
Co Precipitation

Porous κ-carrageenan based composites with potential application in bone tissue engineering have been prepared by in situ co-precipitation of nanoparticles of calcium phosphates, followed by thermally induced gelification and freeze-drying. The scaffolds showed macroporous structure with interconnected porosity. The variation of the biopolymer concentration affected the microstructure and compressive mechanical performance of the composites. The in vitro bioactivity was assessed by soaking the composites in simulated body fluid (SBF) and the formation of an apatite layer on their surface was found.

scholarly journals In vitro and in vivo studies of a gelatin/carboxymethyl chitosan/LAPONITE® composite scaffold for bone tissue engineering

RSC Advances ◽  
2017 ◽  
Vol 7 (85) ◽  
pp. 54100-54110 ◽  
Author(s):  
Li Tao ◽  
Liu Zhonglong ◽  
Xiao Ming ◽  
Yang Zezheng ◽  
Liu Zhiyuan ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Freeze Drying ◽  
Composite Scaffold ◽  
Carboxymethyl Chitosan ◽  
In Vivo Studies ◽  
Potential Use

In the present study, we fabricated a biocomposite scaffold composed of carboxymethyl chitosan (CMC), gelatin and LAPONITE® (Lap) nanoparticles via freeze-drying and investigated its potential use in bone tissue engineering.

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