نتایج جستجو برای: composite scaffold

تعداد نتایج: 144623  

Suitable alternatives are made for damaged or diseased organs and tissues in tissue engineering by combining cellular and molecular biology with materials and mechanical engineering. Fibrin is a critical blood component responsible for homeostasis, used extensively as a biopolymer scaffold in tissue engineering. This study summarizes the latest developments in organ and tissue regeneration usin...

2013
Lei Chen Wei-Min Zhu Zhi-Qiang Fei Jie-Lin Chen Jian-Yi Xiong Ju-Feng Zhang Li Duan Jianghong Huang Zhiyong Liu Daping Wang Yanjun Zeng

OBJECTIVE To examine the biocompatibility of a novel nanohydroxyapatite/poly[lactic-co-glycolic acid] (nHA/PLGA) composite and evaluate its feasibility as a scaffold for cartilage tissue engineering. METHODS Chondrocytes of fetal rabbit were cultured with nHA/PLGA scaffold in vitro and the cell viability was assessed by MTT assay first. Cells adhering to nHA/PLGA scaffold were then observed b...

2015
Amy Fu Giyoong Tae Julia A. Kornfield

Statement of Purpose: Corneal blindness deprives 10 million people worldwide of their sight. Current treatments for corneal blindness mainly rely on implants that replace the injured tissue and have been clinically unsuccessful thus far. The goal of this project is to prevent corneal blindness by developing clinically-viable scaffolds that promote orderly corneal wound healing using biochemical...

Journal: :Genetics and molecular research : GMR 2015
H Wu G H Liu Q Wu B Yu

We prepared a bone scaffold material comprising a PLGA/β-TCP core and a Type I collagen cladding, and recombined it with bone marrow stroma stem cells (BMSCs) to evaluate its potential for use in bone tissue engineering by in vivo and in vitro experiments. PLGA/β-TCP without a cladding was used for comparison. The adherence rate of the BMSCs to the scaffold was determined by cell counting. Cell...

Journal: :Biomaterials 2012
Nora T Khanarian Nora M Haney Rachel A Burga Helen H Lu

Regeneration of the osteochondral interface is critical for integrative and functional cartilage repair. This study focuses on the design and optimization of a hydrogel-ceramic composite scaffold of agarose and hydroxyapatite (HA) for calcified cartilage formation. The first study objective was to compare the effects of HA on non-hypertrophic and hypertrophic chondrocytes cultured in the compos...

Journal: :Journal of materials science. Materials in medicine 2009
Chiara Vitale-Brovarone Francesco Baino Marta Miola Renato Mortera Barbara Onida Enrica Verné

Glass-ceramic macroporous scaffolds were prepared using glass powders and polyethylene (PE) particles of two different sizes. The starting glass, named as Fa-GC, belongs to the system SiO(2)-P(2)O(5)-CaO-MgO-Na(2)O-K(2)O-CaF(2) and was synthesized by a traditional melting-quenching route. The glass was ground and sieved to obtain powders of specific size which were mixed with PE particles and t...

2014
Jongman Lee Hui-suk Yun

The functionality of porous three-dimensional (3D) magnesium phosphate (MgP) scaffold was investigated for the development of a novel protein delivery system and biomimetic bone tissue engineering scaffold. This enhancement can be achieved by incorporation of hydroxyapatite (HA)-containing polymeric microspheres (MSs) into a bulk MgP matrix, and a paste-extruding deposition (PED) system. In thi...

Journal: :Bio-medical materials and engineering 2014
Fujun Wang Abedalwafa Mohammed Chaojing Li Peng Ge Lu Wang Martin W King

Various tissue-engineered vascular grafts have been studied in order to overcome the clinical disadvantages associated with conventional prostheses. However, previous tissue-engineered vascular grafts have possessed insufficient mechanical properties and thus have generally required either preoperative cellular manipulation or the use of bioreactors to improve their performance. In this study, ...

Journal: :The Journal of bone and joint surgery. British volume 2011
H-C Lim J-H Bae H-R Song S H Teoh H-K Kim D-H Kum

Medial open-wedge high tibial osteotomy has been gaining popularity in recent years, but adequate supporting material is required in the osteotomy gap for early weight-bearing and rapid union. The purpose of this study was to investigate whether the implantation of a polycaprolactone-tricalcium phosphate composite scaffold wedge would enhance healing of the osteotomy in a micro pig model. We ca...

2016
Jiling Yi Feng Xiong Binbin Li Heping Chen Yixia Yin Honglian Dai Shipu Li

This study is aimed to evaluate the degradation characteristics, cell viability and host tissue responses of PDLLA/PRGD/β-TCP (PRT) composite nerve scaffold, which was fabricated by poly(d, l-lactic acid) (PDLLA), RGD peptide(Gly-Arg-Gly-Asp-Tyr, GRGDY, abbreviated as RGD) modified poly-{(lactic acid)-co-[(glycolic acid)-alt-(l-lysine)]}(PRGD) and β-tricalcium phosphate (β-TCP). The scaffolds' ...

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