نتایج جستجو برای: tissue scaffolds

تعداد نتایج: 929354  

Gelatin is considered as a partially degraded product of collagen and it is a biodegradable polymer which can be used to produce scaffolds for tissue engineering. Three-dimensional, porous gelatin scaffolds were fabricated by thermally induced phase separation and freeze-drying method. Their porous structure and pore size were characterized by scanning electron microscopy. Scaffolds with differ...

2008
Stephen Badylak

● To understand the composition and organization of extracellular matrix (ECM) in tissues and organs ● To recognize the utility of scaffolds derived from ECM in the field of tissue engineering ● To comprehend the importance of mechanical behavior and mechanical design in the use of ECM scaffolds for tissue repair ● To identify the process by which ECM scaffolds are produced ● To understand some...

Abdorreza Sheikh-Mehdi Mesgar Setareh Khosrovan, Zahra Mohammadi,

Abstract This work introduces the novel gelatin/chitosan blend scaffolds containing different amounts of functionalized multi-walled carbon nanotubes (f-MWCNTs) up to 0.1wt%, which were prepared by freeze drying (freezing and lyophilization). The composite scaffolds were characterized by Fourier transformed infrared spectroscopy (FTIR) to distinguish the functional groups and different bonds in...

Journal: :Macromolecular bioscience 2010
Harini G Sundararaghavan Robert B Metter Jason A Burdick

The structural and mechanical properties of tissue engineered environments are crucial for successful cellular growth and tissue repair. Electrospinning is gaining wide attention for the fabrication of tissue engineered scaffolds, but the small pore sizes of these scaffolds limit cell infiltration and construct vascularization. To address this problem, we have combined electrospinning with phot...

2012
Anja Walther Birgit Hoyer Armin Springer Birgit Mrozik Thomas Hanke Chokri Cherif Wolfgang Pompe Michael Gelinsky

Textile scaffolds can be found in a variety of application areas in regenerative medicine and tissue engineering. In the present study we used electrostatic flocking-a well-known textile technology-to produce scaffolds for tissue engineering of bone. Flock scaffolds stand out due to their unique structure: parallel arranged fibers that are aligned perpendicularly to a substrate, resulting in me...

Journal: :Journal of biomedical materials research 2001
P X Ma R Zhang G Xiao R Franceschi

Engineering new bone tissue with cells and a synthetic extracellular matrix (scaffolding) represents a new approach for the regeneration of mineralized tissues compared with the transplantation of bone (autografts or allografts). In the present work, highly porous poly(L-lactic acid) (PLLA) and PLLA/hydroxyapatite (HAP) composite scaffolds were prepared with a thermally induced phase separation...

2014
Kailash Chandra Gupta Adnan Haider Yu-ri Choi Inn-kyu Kang

Nanofibrous scaffolds are artificial extracellular matrices which provide natural environment for tissue formation. In comparison to other forms of scaffolds, the nanofibrous scaffolds promote cell adhesion, proliferation and differentiation more efficiently due to having high surface to volume ratio. Although scaffolds for tissue engineering have been fabricated by various techniques but elect...

Journal: Nanomedicine Journal 2013

Aligned and random nanocomposite nanofibrous scaffolds were electrospun from polycaprolactone (PCL), poly (vinyl alcohol) (PVA) and hydroxyapatite nanoparticles (nHA). The morphology and mechanical characteristics of the nanofibers were evaluated using scanning electron microscopy and tensile testing, respectively. Scanning electron microscopy revealed fibers with an average diameter of 123 ± 3...

Journal: :Chemical Papers 2021

This article presents a thermal sintering method to fabricate porous bone tissue engineering scaffolds based on polycaprolactone (PCL), polylactic acid (PLA), and their composites. The mechanical properties, structure, biodegradability, biocompatibility of sintered were evaluated. showed porosity in the range 86–91% with pore size 75 m $$\mu$$ 400 . PCL/PLA composite Young’s modulus around 49 M...

2009
Kelly Alvarez Hideo Nakajima

Bone tissue engineering is an emerging interdisciplinary field in Science, combining expertise in medicine, material science and biomechanics. Hard tissue engineering research is focused mainly in two areas, osteo and dental clinical applications. There is a lot of exciting research being performed worldwide in developing novel scaffolds for tissue engineering. Although, nowadays the majority o...

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