Bone microstructure by collagenase etching.

Abstract:

:A novel technique has been developed for microstructural studies of bone. The spatial organizations of the mineral and collagen fibres in bone have been a matter of discussion for some time, with numerous diverse observations arising from various preparative techniques. In this latest investigation details of the mineral structure are clearly revealed in the SEM by treating a cut and polished surface of bone with collagenase to remove the major organic component. This new procedure has minimal effect on the mineral and hence reveals microstructural detail which is far closer to that in vivo than in previous investigations. This paper concentrates on two aspects of the studies, namely the detailed morphology of the mineral component and the arrangement of the collagen fibres in the osteons of compact bone. Firstly, the mineral component is revealed as comprising 'crystallites' (approximately 20 nm diam.) which aggregate to form larger contiguous 'spheroidal particles' (approximately 100 nm diam.), which in turn form 'granules' (approximately 500 nm diam.). Secondly, the regions from which collagen fibres have been removed are clearly revealed, showing that within an osteon, alternating lamellae have collagen fibres oriented approximately parallel to and circumferential to the Haversian canal respectively.

journal_name

Biomaterials

journal_title

Biomaterials

authors

Green M,Isaac DH,Jenkins GM

doi

10.1016/0142-9612(85)90002-x

subject

Has Abstract

pub_date

1985-05-01 00:00:00

pages

150-2

issue

3

eissn

0142-9612

issn

1878-5905

pii

0142-9612(85)90002-X

journal_volume

6

pub_type

杂志文章
  • Protein repellent properties of covalently attached PEG coatings on nanostructured SiO(2)-based interfaces.

    abstract::In this study, we report the systematic comparison of different poly(ethylene glycol) (PEG) self-assembled monolayers on glass with respect to their protein adsorption and cell adhesion resistance. Combining PEGylation with micellar nanolithography allowed the formation of gold nanoparticle arrays on glass and selecti...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2007.07.038

    authors: Blümmel J,Perschmann N,Aydin D,Drinjakovic J,Surrey T,Lopez-Garcia M,Kessler H,Spatz JP

    更新日期:2007-11-01 00:00:00

  • Creating stiffness gradient polyvinyl alcohol hydrogel using a simple gradual freezing-thawing method to investigate stem cell differentiation behaviors.

    abstract::Polyvinyl alcohol (PVA) cylindrical hydrogel with a stiffness gradient was prepared using a simple liquid nitrogen (LN2)-contacting gradual freezing and thawing method in order to investigate the effects of substrate stiffness on stem cell differentiation into specific cell types. The prepared cylindrical PVA hydrogel...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2014.11.017

    authors: Kim TH,An DB,Oh SH,Kang MK,Song HH,Lee JH

    更新日期:2015-02-01 00:00:00

  • Treating metastatic triple negative breast cancer with CD44/neuropilin dual molecular targets of multifunctional nanoparticles.

    abstract::Metastasis of cancer makes up the vast majority of cancer-related deaths, and it usually initiates from tumor cells invasiveness and develops through tumor neovasculature. In this work, we have fabricated a CD44/neuropilin dual receptor-targeting nanoparticulate system (tLyP-1-HT NPs) with endogenous or FDA approved c...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2017.05.022

    authors: Liang DS,Zhang WJ,Wang AT,Su HT,Zhong HJ,Qi XR

    更新日期:2017-08-01 00:00:00

  • Integrin beta1 silencing in osteoblasts alters substrate-dependent responses to 1,25-dihydroxy vitamin D3.

    abstract::Surface microroughness increases osteoblast differentiation and enhances responses of osteoblasts to 1,25-dihydroxyvitamin D3 [1alpha,25(OH)2D3]. The observations that beta1 integrin expression is increased in osteoblasts grown on Ti substrates with rough microarchitecture, and that it is regulated by 1alpha,25(OH)2D3...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2006.02.022

    authors: Wang L,Zhao G,Olivares-Navarrete R,Bell BF,Wieland M,Cochran DL,Schwartz Z,Boyan BD

    更新日期:2006-07-01 00:00:00

  • Transection of peripheral nerves, bridging strategies and effect evaluation.

    abstract::Disruption of peripheral nerves due to trauma is a frequently occurring clinical problem. Gaps in the nerve are bridged by guiding the regenerating nerves along autologous grafts or artificial guides. This review gives an overview on the different methods of nerve repair techniques. Conventional suturing techniques ar...

    journal_title:Biomaterials

    pub_type: 杂志文章,评审

    doi:10.1016/s0142-9612(03)00504-0

    authors: IJkema-Paassen J,Jansen K,Gramsbergen A,Meek MF

    更新日期:2004-04-01 00:00:00

  • A highly tumor-targeted nanoparticle of podophyllotoxin penetrated tumor core and regressed multidrug resistant tumors.

    abstract::Podophyllotoxin (PPT) exhibited significant activity against P-glycoprotein mediated multidrug resistant (MDR) tumor cell lines; however, due to its poor solubility and high toxicity, PPT cannot be dosed systemically, preventing its clinical use for MDR cancer. We developed a nanoparticle dosage form of PPT by covalen...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2015.02.041

    authors: Roy A,Ernsting MJ,Undzys E,Li SD

    更新日期:2015-06-01 00:00:00

  • Tailor-made purified human platelet lysate concentrated in neurotrophins for treatment of Parkinson's disease.

    abstract::Human platelet lysates (PLs), which contain multiple neurotrophins, have been proposed for treating neurodegenerative disorders, including Parkinson's disease (PD). However, current PLs suspended in plasma have high protein content and contain fibrinogen/fibrin and, following activation, also proteolytic and thromboge...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2017.07.018

    authors: Chou ML,Wu JW,Gouel F,Jonneaux A,Timmerman K,Renn TY,Laloux C,Chang HM,Lin LT,Devedjian JC,Devos D,Burnouf T

    更新日期:2017-10-01 00:00:00

  • Mechanical loading of bovine pericardium accelerates enzymatic degradation.

    abstract::Bioprosthetic heart valves fail as the result of two simultaneous processes: structural deterioration and calcification. Leaflet deterioration and perforation have been correlated with regions of highest stress in the tissue. The failures have long been assumed to be due to simple mechanical fatigue of the collagen fi...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/s0142-9612(99)00013-7

    authors: Ellsmere JC,Khanna RA,Lee JM

    更新日期:1999-06-01 00:00:00

  • Effect of bilobalide on peripheral nerve regeneration.

    abstract::The present study provides in vivo trials of silicone rubber chambers filled with different concentrations of bilobalide (0, 50, 100, 200, 400 microM) to bridge a 15 mm sciatic nerve defect in rats. Collagen was also filled in the chambers to prevent the bilobalide from leakage. Histological and electrophysiological t...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/s0142-9612(03)00548-9

    authors: Chen YS,Liu CJ,Cheng CY,Yao CH

    更新日期:2004-02-01 00:00:00

  • Human corneal endothelial cell growth on a silk fibroin membrane.

    abstract::Tissue engineering of the cornea could overcome shortages of donor corneas for transplantation and improve quality. Our aim was to grow an endothelial layer on a substratum suitable for transplant. Silkworm (Bombyx mori) fibroin was prepared as 5 μm thick transparent membranes. The B4G12 cell line was used to assess a...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2010.12.034

    authors: Madden PW,Lai JN,George KA,Giovenco T,Harkin DG,Chirila TV

    更新日期:2011-06-01 00:00:00

  • Study of a (trimethylenecarbonate-co-epsilon-caprolactone) polymer part 1: preparation of a new nerve guide through controlled random copolymerization using rare earth catalysts.

    abstract::Random copolymers of trimethylene carbonate and epsilon-caprolactone have been synthesized through ring-opening polymerization using rare earth alkoxides as initiator. The structure of the copolymers has been characterized by 1H and 13C NMR. Their thermal behaviour, their permeability to liquid and their mechanical pr...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/s0142-9612(01)00029-1

    authors: Schappacher M,Fabre T,Mingotaud AF,Soum A

    更新日期:2001-11-01 00:00:00

  • Stemness and transdifferentiation of adipose-derived stem cells using L-ascorbic acid 2-phosphate-induced cell sheet formation.

    abstract::Cell sheet technology has emerged as an important tissue engineering approach. Adipose-derived stem cells (ASCs) have valuable applications in regenerative medicine, but their stemness and differentiation capabilities in the cell sheet format have not been well investigated. In this study, we found that l-ascorbate 2-...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2014.01.015

    authors: Yu J,Tu YK,Tang YB,Cheng NC

    更新日期:2014-04-01 00:00:00

  • Templated agarose scaffolds for the support of motor axon regeneration into sites of complete spinal cord transection.

    abstract::Bioengineered scaffolds have the potential to support and guide injured axons after spinal cord injury, contributing to neural repair. In previous studies we have reported that templated agarose scaffolds can be fabricated into precise linear arrays and implanted into the partially injured spinal cord, organizing grow...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2012.10.070

    authors: Gao M,Lu P,Bednark B,Lynam D,Conner JM,Sakamoto J,Tuszynski MH

    更新日期:2013-02-01 00:00:00

  • Blood-compatible biomaterials by surface coating with a novel antithrombin-heparin covalent complex.

    abstract::Covalent antithrombin-heparin complex (ATH) was covalently grafted to a polycarbonate urethane (Corethane) endoluminal graft (a kind gift of Corvita Corporation) after being activated using 0.3% m/m NaOCl in 0.15 M phosphate pH 6.0. ATH graft density (1.98 x 10(-7) mol/m2) was 6 times the maximum amount of unfractiona...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/s0142-9612(01)00135-1

    authors: Klement P,Du YJ,Berry L,Andrew M,Chan AK

    更新日期:2002-01-01 00:00:00

  • PEGylated dendrimer-entrapped gold nanoparticles for in vivo blood pool and tumor imaging by computed tomography.

    abstract::We report the synthesis and characterization of dendrimer-entrapped gold nanoparticles (Au DENPs) modified by polyethylene glycol (PEG) with enhanced biocompatibility for computed tomography (CT) imaging applications. In this study, amine-terminated poly(amidoamine) dendrimers of generation 5 (G5.NH(2)) modified by PE...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2011.10.052

    authors: Peng C,Zheng L,Chen Q,Shen M,Guo R,Wang H,Cao X,Zhang G,Shi X

    更新日期:2012-02-01 00:00:00

  • Molecular imaging based on metabolic glycoengineering and bioorthogonal click chemistry.

    abstract::Metabolic glycoengineering is a powerful technique that can introduce various chemical groups to cellular glycan by treatment of unnatural monosaccharide. Particularly, this technique has enabled many challenging trials for molecular imaging in combination with click chemistry, which provides fast and specific chemica...

    journal_title:Biomaterials

    pub_type: 杂志文章,评审

    doi:10.1016/j.biomaterials.2017.04.003

    authors: Yoon HY,Koo H,Kim K,Kwon IC

    更新日期:2017-07-01 00:00:00

  • Anticomplementary activity of dextran derivatives.

    abstract::Substitution with carboxylic and benzylamine sulphonated groups conferred on dextran both antithrombic activity and the capacity to inhibit formation of the amplification C3 convertase of complement. In dextrans substituted with carboxylic groups (greater than 40%), a high content of sulphonate (greater than 10%) resu...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/0142-9612(85)90040-7

    authors: Mauzac M,Maillet F,Jozefonvicz J,Kazatchkine MD

    更新日期:1985-01-01 00:00:00

  • Ultraviolet light crosslinking of poly(trimethylene carbonate) for elastomeric tissue engineering scaffolds.

    abstract::A practical method of photocrosslinking high molecular weight poly(trimethylene carbonate)(PTMC) is presented. Flexible, elastomeric and biodegradable networks could be readily prepared by UV irradiating PTMC films containing pentaerythritol triacrylate (PETA) and a photoinitiator. The network characteristics, mechani...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2010.07.102

    authors: Bat E,Kothman BH,Higuera GA,van Blitterswijk CA,Feijen J,Grijpma DW

    更新日期:2010-11-01 00:00:00

  • Hydrophobic penetrating peptide PFVYLI-modified stealth liposomes for doxorubicin delivery in breast cancer therapy.

    abstract::Based on the hydrophobic interaction with biomembranes, PFVYLI (PFV), a hydrophobic penetration peptide (HPP), was initially introduced to modify doxorubicin-loaded stealth-sustained liposomes (PFV-SSLs-DOX) against different breast cancer cell phenotypes irrespective of their receptor expression or antigen presence. ...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2013.11.088

    authors: Cai D,Gao W,He B,Dai W,Zhang H,Wang X,Wang J,Zhang X,Zhang Q

    更新日期:2014-02-01 00:00:00

  • An improvement in sintering property of beta-tricalcium phosphate by addition of calcium pyrophosphate.

    abstract::The sintering behavior of calcium pyrophosphate (CPP, Ca2P2O7)-doped beta-tricalcium phosphate [TCP, Ca3(PO4)2], prepared by solid state reaction, was investigated in-situ, using dilatometry. Pure beta-TCP undergoes phase transition to alpha-TCP at about 1200 degrees C; hence pure beta-TCP ceramics should be sintered ...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/s0142-9612(01)00201-0

    authors: Ryu HS,Youn HJ,Hong KS,Chang BS,Lee CK,Chung SS

    更新日期:2002-02-01 00:00:00

  • The use of glass substrates with bi-functional silanes for designing micropatterned cell-secreted cytokine immunoassays.

    abstract::It is often desirable to sequester cells in specific locations on the surface and to integrate sensing elements next to the cells. In the present study, surfaces were fabricated so as to position cytokine sensing domains inside non-fouling poly(ethylene glycol) (PEG) hydrogel microwells. Our aim was to increase sensit...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2011.04.026

    authors: Seo JH,Chen LJ,Verkhoturov SV,Schweikert EA,Revzin A

    更新日期:2011-08-01 00:00:00

  • A study on the adsorption structure of an adhesive monomer for precious metals by surface-enhanced Raman scattering spectroscopy.

    abstract::In order to clarify the role of a primer on the adhesion between dental precious metals and resin, surface-enhanced Raman scattering (SERS) technique has been applied to the structural analysis of the adhesive monomer, 6-(N-(4-vinylbenzyl)propylamino)-1,3,5-triazine-2, 4-dithione (VBATDT) adsorbed on colloidal Au surf...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/s0142-9612(98)00238-5

    authors: Suzuki M,Fujishima A,Miyazaki T,Hisamitsu H,Kojima K,Kadoma Y

    更新日期:1999-05-01 00:00:00

  • A synthetic stroma-free germinal center niche for efficient generation of humoral immunity ex vivo.

    abstract::B cells play a major role in the adaptive immune response by producing antigen-specific antibodies against pathogens and imparting immunological memory. Following infection or vaccination, antibody-secreting B cells and memory B cells are generated in specialized regions of lymph nodes and spleens, called germinal cen...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2018.02.039

    authors: Roh KH,Song HW,Pradhan P,Bai K,Bohannon CD,Dale G,Leleux J,Jacob J,Roy K

    更新日期:2018-05-01 00:00:00

  • Migration of lymphocytes on fibronectin-coated surfaces: temporal evolution of migratory parameters.

    abstract::Lymphocytes typically interact with implanted biomaterials through adsorbed exogenous proteins. To provide a more complete characterization of these interactions, analysis of lymphocyte migration on adsorbed extracellular matrix proteins must accompany the commonly performed adhesion studies. We report here a comparis...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/s0142-9612(99)00154-4

    authors: Bergman AJ,Zygourakis K

    更新日期:1999-12-01 00:00:00

  • An cell-assembly derived physiological 3D model of the metabolic syndrome, based on adipose-derived stromal cells and a gelatin/alginate/fibrinogen matrix.

    abstract::One of the major obstacles in drug discovery is the lack of in vitro three-dimensional (3D) models that can capture more complex features of a disease.Here we established a in vitro physiological model of the metabolic syndrome (MS) using cell-assembly technique (CAT), which can assemble cells into designated places t...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2010.01.111

    authors: Xu M,Wang X,Yan Y,Yao R,Ge Y

    更新日期:2010-05-01 00:00:00

  • Inactivation of encapsulated cells and their therapeutic effects by means of TGL triple-fusion reporter/biosafety gene.

    abstract::The immobilization of cells within alginate-poly-l-lysine-alginate (APA) microcapsules has been demonstrated to be an effective technology design for long term delivery of therapeutic products. Despite promising advances, biosafety aspects still remain to be improved. Here, we describe a complete characterization of t...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2012.10.076

    authors: Santos E,Larzabal L,Calvo A,Orive G,Pedraz JL,Hernández RM

    更新日期:2013-01-01 00:00:00

  • A sandwiched microarray platform for benchtop cell-based high throughput screening.

    abstract::The emergence of combinatorial chemistries and the increased discovery of natural compounds have led to the production of expansive libraries of drug candidates and vast numbers of compounds with potentially interesting biological activities. Despite broad interest in high throughput screening (HTS) across varied fiel...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2010.09.026

    authors: Wu J,Wheeldon I,Guo Y,Lu T,Du Y,Wang B,He J,Hu Y,Khademhosseini A

    更新日期:2011-01-01 00:00:00

  • Micro-patterned cell-sheets fabricated with stamping-force-controlled micro-contact printing.

    abstract::Cell-sheet-engineering based regenerative medicine is successfully applied to clinical studies, though cell sheets contain uniformly distributed cells. For the further application to complex tissues/organs, cell sheets with a multi-cellular pattern were highly demanded. Micro-contact printing is a quite useful techniq...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2014.08.043

    authors: Tanaka N,Ota H,Fukumori K,Miyake J,Yamato M,Okano T

    更新日期:2014-12-01 00:00:00

  • Patient-derived scaffolds uncover breast cancer promoting properties of the microenvironment.

    abstract::Tumor cells interact with the microenvironment that specifically supports and promotes tumor development. Key components in the tumor environment have been linked to various aggressive cancer features and can further influence the presence of subpopulations of cancer cells with specific functions, including cancer ste...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2019.119705

    authors: Landberg G,Fitzpatrick P,Isakson P,Jonasson E,Karlsson J,Larsson E,Svanström A,Rafnsdottir S,Persson E,Gustafsson A,Andersson D,Rosendahl J,Petronis S,Ranji P,Gregersson P,Magnusson Y,Håkansson J,Ståhlberg A

    更新日期:2020-03-01 00:00:00

  • Cardiomyocyte-targeted siRNA delivery by prostaglandin E(2)-Fas siRNA polyplexes formulated with reducible poly(amido amine) for preventing cardiomyocyte apoptosis.

    abstract::A cardiomyocyte-targeted Fas siRNA delivery system was developed using prostaglandin E(2) (PGE(2))-modified siRNA polyplexes formed by a reducible poly(amido amine) to inhibit cardiomyocyte apoptosis. PGE(2), which was used as a specific ligand for cardiomyocyte targeting, was conjugated to the terminal-end of the sen...

    journal_title:Biomaterials

    pub_type: 杂志文章

    doi:10.1016/j.biomaterials.2008.07.047

    authors: Kim SH,Jeong JH,Ou M,Yockman JW,Kim SW,Bull DA

    更新日期:2008-11-01 00:00:00