نتایج جستجو برای: elastic cartilage

تعداد نتایج: 104436  

Journal: :Materials Science and Engineering: C 2021

The friction and wear properties of silica/poly(tetrahydrofuran)/poly(?-caprolactone) (SiO2/PTHF/PCL-diCOOH) hybrid materials that are proposed as cartilage tissue engineering were investigated against living articular cartilage. A testing rig was designed to allow fresh bovine force compared for five compositions the biomaterial articulating freshly harvested in diluted calf serum. Under a non...

2011
Soo Yeon Kim Dong Kyun Hong Myung Im Young Lee Jeung Hoon Lee Young Joon Seo

Ectopic ossification refers to the process of new bone formation in sites that normally do not ossify. The auricle is composed of elastic cartilage, and hence is a pliable structure. Auricular ossification is a rare condition that might be caused by injurious processes, including frostbite, physical trauma, and inflammation as well as processes related to metabolic or endocrine disorders. Here,...

Journal: :Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2008
Benjamin D Elder Kyriacos A Athanasiou

This study examined the effects of radial confinement and passive axial compression-induced vertical confinement, on the biomechanical, biochemical, and histological properties of self-assembled chondrocyte constructs. The self-assembled constructs, engineered without the use of an exogenous scaffold, exhibited significant increases in stiffness in the direction orthogonal to that of the confin...

Journal: :Biomechanics and modeling in mechanobiology 2011
Mansoor A Haider Jeffrey E Olander Rachel F Arnold Daniel R Marous April J McLamb Karmethia C Thompson William R Woodruff Janine M Haugh

A phenomenological mixture model is presented for interactions between biosynthesis of extracellular matrix (ECM) constituents and ECM linking in a scaffold seeded with chondrocytes. A system of three ordinary differential equations for average apparent densities of unlinked ECM, linked ECM and scaffold is developed along with associated initial conditions for scaffold material properties. Equa...

2017
Lorenzo Alibardi Victor Benno Meyer-Rochow

During the regeneration of the tail in the arboreal New Zealand gecko (Hoplodactylus maculatus) a new set of tail scales, modified into pads bearing setae 5-20 μm long, is also regenerated. Stages of the formation of these specialized scales from epidermal pegs that invaginate the dermis of the regenerating tail are described on the basis of light and electron microscopic images. Within the peg...

2006
D. J. GOLDSTEIN

(a) by competing for hydrogen bonding sites in the tissue or on the dye particle, it may inhibit staining in which the dye-substrate link is a hydrogen bond; (6) because it is a dipole, urea may have some affinity for charged sites in the tissue, and thus tend to reduce electrostatic staining; (c) urea may in some cases decrease staining by increasing the solubility of the dye; (d) by inhibitin...

2005
Salvatore Federico Alfio Grillo Gaetano Giaquinta Walter Herzog

INTRODUCTION the deep layers because they are softer, a result that is Articular cartilage is a biological composite material made of consistent with experimental evidence [5]. a proteoglycan matrix, and of chondrocyte and collagen fibre inclusions. We have modelled articular cartilage by means of a Implementation of this model into a Finite Element code linearly elastic Transversely Isotropic,...

Journal: :The Journal of Biophysical and Biochemical Cytology 1958
Huntington Sheldon Robert A. Robinson

Normal rabbit ear cartilage studied with the light and electron microscope shows chondrocytes in which large lipide spherules, and an abundance of glycogen, a few small mitochondria, and relatively few elements of the endoplasmic reticulum can be identified. The chondrocytes contain, in addition, a material which stains strongly with acid fuchsin and appears in the electron microscope as a rela...

Journal: :Journal of biomechanics 1989
V C Mow M C Gibbs W M Lai W B Zhu K A Athanasiou

Part I (Mak et al., 1987, J. Biomechanics 20, 703-714) presented the theoretical solutions for the biphasic indentation of articular cartilage under creep and stress-relaxation conditions. In this study, using the creep solution, we developed an efficient numerical algorithm to compute all three material coefficients of cartilage in situ on the joint surface from the indentation creep experimen...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Brian O Diekman Nicolas Christoforou Vincent P Willard Haosi Sun Johannah Sanchez-Adams Kam W Leong Farshid Guilak

The development of regenerative therapies for cartilage injury has been greatly aided by recent advances in stem cell biology. Induced pluripotent stem cells (iPSCs) have the potential to provide an abundant cell source for tissue engineering, as well as generating patient-matched in vitro models to study genetic and environmental factors in cartilage repair and osteoarthritis. However, both ce...

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