Mineralized biomimetic collagen/alginate/silica composite scaffolds fabricated by a low-temperature bio-plotting process for hard tissue regeneration: fabrication, characterisation and in vitro cellular activities

2014 ◽  
Vol 2 (35) ◽  
pp. 5785 ◽  
Author(s):  
HyeongJin Lee ◽  
YongBok Kim ◽  
SuHon Kim ◽  
GeunHyung Kim
In Vivo ◽  
2021 ◽  
Vol 35 (5) ◽  
pp. 2541-2549
Author(s):  
OLE JUNG ◽  
MIKE BARBECK ◽  
LU FAN ◽  
FABIAN KORTE ◽  
CUIFENG ZHAO ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29335-29345 ◽  
Author(s):  
KyoungHo Lee ◽  
Cho-Rong Seo ◽  
Jin-Mo Ku ◽  
Hyeongjin Lee ◽  
Hyeon Yoon ◽  
...  

A new composite scaffold consisting of poly(ε-caprolactone), alginate, and phenamil was manufactured by a combined process, 3D-printing and coating process, for hard tissue regeneration.


2005 ◽  
Vol 284-286 ◽  
pp. 663-666 ◽  
Author(s):  
Noriko Kotobuki ◽  
Koji Ioku ◽  
Daisuke Kawagoe ◽  
Daishiro Nomura ◽  
Hirotaka Fujimori ◽  
...  

We have cultured mesenchymal cells (MSC) on various types of ceramic disks and used these tissue-engineered ceramics for hard tissue regeneration. In this approach, observation of cultured cell morphology is important even if culture substrata are calcium phosphate ceramics, which usually show bioactive nature. However, due to the opaque nature of the ceramics, cells observation is very difficult. Here, we demonstrate light microscopic observation of rat MSC cultured on transparent β-tricalcium phosphate ceramics (β-TCP). The culture was performed in osteogenic medium. Thus, the cell differentiated into bone-forming osteoblasts, which fabricated a mineralized matrix on the ceramic disks. Microscopic observation revealed that the cascade of osteogenic differentiation after attachment/proliferation of MSC on the ceramic disks was similar to that on a culture grade polystyrene dish. These results confirmed the excellent property of β-TCP for MSC culture leading to hard tissue regeneration.


2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Naznin Sultana ◽  
Tareef Hayat Khan

For bone tissue regeneration, composite scaffolds containing biodegradable polymers and nanosized osteoconductive bioceramics have been regarded as promising biomimetic systems. Polymer blends of poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) and poly(L-lactic acid) (PLLA) can be used as the polymer matrix to control the degradation rate. In order to render the scaffolds osteoconductive, nano-sized hydroxyapatite (nHA) particles can be incorporated into the polymer matrix. In the first part of this study, a factorial design approach to investigate the influence of materials on the initial compressive mechanical properties of the scaffolds was studied. In the second part, the protein adsorption behavior and the attachment and morphology of osteoblast-like cells (Saos-2) of the scaffoldsin vitrowere also studied. It was observed that nHA incorporated PHBV/PLLA composite scaffolds adsorbed more bovine serum albumin (BSA) protein than PHBV or PHBV/PLLA scaffolds.In vitrostudies also revealed that the attachment of human osteoblastic cells (SaOS-2) was significantly higher in nHA incorporated PHBV/PLLA composite scaffolds. From the SEM micrographs of nHA incorporated PHBV/PLLA composite scaffolds seeded with SaOS-2 cells after a 7-day cell culture period, it was observed that the cells were well expanded and spread in all directions on the scaffolds.


2016 ◽  
Vol 4 (4) ◽  
pp. 656-665 ◽  
Author(s):  
Jae Yoon Lee ◽  
Jinhyo Chung ◽  
Woo-Jae Chung ◽  
GeunHyung Kim

We propose a new biocomposite consisting of M13-phage-conjugated alginate and PCL micro/nanofibers, and it has potential to be used as an excellent bioactive component for hard tissue regeneration.


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