Abstract：
:The influence of crystallization, upon heat treatment, on the properties of high-velocity oxy-fuel (HVOF) sprayed hydroxyapatite (HA) coatings was investigated. The characterization of the HA coating was performed by X-ray diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR). Differential Scanning Calorimeter (DSC) was employed to determine the crystallization temperature of the amorphous phase in an as-sprayed HA coating. The study demonstrated the effect of crystallization on the coating properties by considering the changes in materials chemistry, crystallinity level, and mechanical performance. Results showed that complete crystallization of the amorphous phase occurred at approximately 700 degrees C and the crystallization temperature was dependent on sample heating rate in the DSC test. The changes of ion groups were detected by FTIR, before and after the phase transformation. The crystallization of the coating after annealing at 750 degrees C resulted in a significant increase of the coatings' adhesive strength and shear strength, which attained maximum values 34 +/- 3 and 14.1 -/+ 0.8 MPa, respectively. Young's modulus increased from 21 +/- 1 to 25 +/- 2 GPa. Microhardness measurements confirmed the changes in coating properties. It is also found that the transformation from the amorphous phase has crystalline HA as the only resultant phase detected by XRD.
journal_name
Biomaterialsjournal_title
Biomaterialsauthors
Li H,Khor KA,Cheang Pdoi
10.1016/s0142-9612(01)00326-xkeywords:
subject
Has Abstractpub_date
2002-05-01 00:00:00pages
2105-12issue
10eissn
0142-9612issn
1878-5905pii
S0142-9612(01)00326-Xjournal_volume
23pub_type
杂志文章相关文献
BIOMATERIALS文献大全abstract：:We report here the study of the biocompatibility of a bone graft material, the Pyrost, using a previously established in vitro model of human osteoblasts. The effect of this material on cell proliferation was evaluated by the MTS assay. Results indicated the absolute absence of cytotoxic or cytostatic effect of Pyrost...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/s0142-9612(98)00090-8
更新日期：1998-10-01 00:00:00
abstract：:Bioelectrical phenomenon in natural bone has been well recognized for its role in bone development and fracture healing. For example, the piezoelectricity induced modulation in cellular functionality assists in the repair and regeneration of bone tissue. Against this backdrop, we review here the origin of dielectric a...
journal_title：Biomaterials
pub_type： 杂志文章,评审
doi：10.1016/j.biomaterials.2020.120280
更新日期：2020-11-01 00:00:00
abstract：:Non-viral carriers for gene therapy have been developed to minimize carrier cytotoxicity and to enhance transfection efficiency. Previously, we synthesized a 9-arginine-based reducible high molecular weight peptide for gene delivery. For the reducible poly(oligo-D-arginines) (rPOA), 9-arginine oligopeptides are connec...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2010.08.038
更新日期：2010-12-01 00:00:00
abstract：:A major obstacle in the development of efficient therapies for progressive liver fibrosis is the lack of representative in vitro models of liver fibrosis to aid in understanding the mechanisms of the disease and to promote the development of pharmaceuticals. Our aim was to develop a relevant in vitro mouse liver fibro...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2020.120335
更新日期：2020-12-01 00:00:00
abstract：:The development of three-dimensional (3D) biomimetic scaffolds which provide an optimal environment for cells adhesion, proliferation and differentiation, and guide new tissue formation has been one of the major goals in tissue engineering. In this work, a processing technique has been developed to create 3D nanofibro...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2009.04.024
更新日期：2009-09-01 00:00:00
abstract：:Polydimethacrylate resins were prepared by photopolymerization of Bis-GMA, TEGDMA, UDMA or Bis-EMA (4) monomer, initiated by camphoroquinone/N,N-dimethylaminoethyl methacrylate system. The study of physical properties of these resins showed that TEGDMA seems to create the most dense polymer network, which however is t...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/s0142-9612(02)00380-0
更新日期：2003-02-01 00:00:00
abstract：:Despite recent advances in cardiovascular medicine, ischemic diseases remain a major cause of morbidity and mortality. Although stem cell-based therapies for the treatment of ischemic diseases show great promise, limited availability of biologically functional stem cells mired the application of stem cell-based therap...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2014.06.037
更新日期：2014-10-01 00:00:00
abstract：:Biological heart prostheses present medium and long-term problems, owing to progressive deterioration and calcification of the tissue. To study the latter problem, we compared the effectiveness of anticalcification treatments in calf pericardium samples implanted into female Wistar rats after the following procedures:...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/0142-9612(91)90208-r
更新日期：1991-03-01 00:00:00
abstract：:We investigated the morphological effect of phase-separated block copolymer surfaces composed of poly(2-methacryloyloxyethyl phosphorylcholine (MPC)) (PMPC) and poly(dimethylsiloxane) (PDMS) on protein adsorption and cell adhesion behavior. We observed three different types of phase-separated surface morphologies by T...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2009.06.031
更新日期：2009-10-01 00:00:00
abstract：:To enable the synthesis of hydrogels containing microporosity, a family of pore generating additives (porogens) were synthesized from poly(ethylene glycols) (PEGs) with different molecular weights using naphthyl acetic acid. The products formed were characterized by UV-vis, differential scanning calorimetry and soluti...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/0142-9612(93)90206-h
更新日期：1993-11-01 00:00:00
abstract：:Poly(trimethylene carbonate) (PTMC) with molecular weights greater than 100 kg/mol is known to degrade readily in vivo while PTMC of less than 70 kg/mol is resistant to degradation. The reason for the molecular weight dependent degradation rate of PTMC is unclear, and may be due to differences in macrophage behavior o...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2014.07.023
更新日期：2014-11-01 00:00:00
abstract：:The polymerization of N,N' carbonylbis (caprolactam) (CBC) and polyol in the presence of alcoholate as catalyst produced cross-linked poly(ester-urea)s via ring opening addition reaction. In contrast to conventional synthetic routes, the use of non-toxic CBC eliminates the need for toxic isocyanate-based monomers. The...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2003.09.110
更新日期：2004-06-01 00:00:00
abstract：:The goal of this study was to develop a polymeric carrier for delivery of anti-tumor drugs and sustained release of these agents in order to optimize anti-tumor activity while minimizing systemic effects. We used oligo(poly(ethylene glycol) fumarate) (OPF) hydrogels modified with small negatively charged molecules, so...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2010.06.054
更新日期：2010-11-01 00:00:00
abstract：:Recent studies suggest that bone marrow stromal cells are a potential source of osteoblasts and chondrocytes and can be used to regenerate damaged tissues using a tissue-engineering (TE) approach. However, these strategies require the use of an appropriate scaffold architecture that can support the formation de novo o...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2006.07.034
更新日期：2006-12-01 00:00:00
abstract：:We synthesized arginine-conjugated polypropylenimine dendrimer G2 (DAB-8), PPI2-R for gene delivery systems. Synthesized PPI2-R could retard plasmid DNA at a weight ratio of 4 completely and PPI2-R polyplexes showed a fluorescence of less than 10% over a charge ratio of 2 by PicoGreen reagent assay, suggesting its goo...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2006.12.013
更新日期：2007-04-01 00:00:00
abstract：:A tissue-engineered bone has become a viable alternative to autologous bone for bone augmentation in atrophy alveolar ridge. The aim of the present study was to evaluate porous beta-tricalcium phosphate (beta-TCP) combined with autologous osteoblasts to augment edentulous alveolar ridge in a canine model. Autologous o...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2008.12.067
更新日期：2009-05-01 00:00:00
abstract：:Cell labeling using magnetic nanoparticles is an increasingly used approach in noninvasive behavior tracking, in vitro separation of cancer stem cells (CSCs), and CSC-based research in cancer therapy. However, the impact of magnetic labeling on the biological properties of targeted CSCs, such as self-renewal, prolifer...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2012.01.058
更新日期：2012-05-01 00:00:00
abstract：:Local contact stresses at the bone-cement interface are thought to play an important role in the initiation of component loosening. A reduced-modulus bone cement can lower these local contact stresses. The viscoelastic properties of such a cement raised the question of long term subsidence of the implant system. In th...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/s0142-9612(97)00115-4
更新日期：1998-09-01 00:00:00
abstract：:The heart possesses a complex three-dimensional (3D) laminar myofiber organization; however, because engineering physiologically relevant 3D tissues remains a technical challenge, the effects of cardiomyocyte alignment on excitation-contraction coupling, shortening and force development have not been systematically st...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2020.120204
更新日期：2020-10-01 00:00:00
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
更新日期：2004-04-01 00:00:00
abstract：:Literature has shown that slowing down the curing rate of light-initiated resin composites by lowering the light intensity of the light source improved the integrity of the adhesive composite-cavity interface as a result of a more gradual contraction stress development. This study investigated how the curing rate coul...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/s0142-9612(96)00074-9
更新日期：1996-12-01 00:00:00
abstract：:The design of new bioactive scaffolds mimicking the physiologic environment present during tissue formation is an important frontier in biomaterials research. Herein, we evaluated scaffolds prepared from blends of two biopolymers: silk fibroin and hyaluronan. Our rationale was that such blends would allow the combinat...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2009.06.008
更新日期：2009-10-01 00:00:00
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
更新日期：2002-01-01 00:00:00
abstract：:Generation of specific lineages of cells from embryonic stem (ES) cells is pre-requisite to use these cells in pre-clinical applications. Here, we developed a recombinant E-cadherin substratum for generation of hepatic progenitor populations at single cell level. This artificial acellular feeder layer supports the ste...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2010.11.045
更新日期：2011-03-01 00:00:00
abstract：:The formation of bone tissue in pores, and around, a block made of partially dehydroxylated porous hydroxyapatite ceramic and implanted into a rat's femur using X-ray diffraction (XRD), infrared spectroscopy (IRS) and histological methods were investigated. Structural characteristics and composition of new bone tissue...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/s0142-9612(98)00024-6
更新日期：1998-07-01 00:00:00
abstract：:Titanium (Ti) osseointegration is critical for the success of dental and orthopedic implants. Previous studies have shown that surface roughness at the micro- and submicro-scales promotes osseointegration by enhancing osteoblast differentiation and local factor production. Only relatively recently have the effects of ...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2011.01.029
更新日期：2011-05-01 00:00:00
abstract：:The discovery of electric fields in biological tissues has led to efforts in developing technologies utilizing electrical stimulation for therapeutic applications. Native tissues, such as cartilage and bone, exhibit piezoelectric behavior, wherein electrical activity can be generated due to mechanical deformation. Yet...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2017.09.024
更新日期：2017-12-01 00:00:00
abstract：:Graphene oxide (GO) immunotoxicity is not clarified well up to date. Herein we reported the effects of GOs with and without polyvinylpyrrolidone (PVP) coating on human immune cells such as dendritic cells (DCs), T lymphocytes and macrophages. Human immune cells such as dendritic cells (DCs), T lymphocytes and macropha...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2013.03.024
更新日期：2013-07-01 00:00:00
abstract：:Collagen has been widely used for tissue engineering. Here, we applied bioactive laminin-derived peptides as an additive for collagen, laminin-111, and fibronectin matrices resulting in peptide/collagen, peptide/laminin-111, and peptide/fibronectin matrices. Several syndecan-binding peptides, including AG73 (RKRLQVQLS...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2011.02.052
更新日期：2011-07-01 00:00:00
abstract：:This paper completes the model of biodegradation for biodegradable polymers that was previously developed by Wang et al. (Wang Y, Pan J, Han X, Sinka, Ding L. A phenomenological model for the degradation of biodegradable polymers. Biomaterials 2008;29:3393-401). Crystallisation during biodegradation was not considered...
journal_title：Biomaterials
pub_type： 杂志文章
doi：10.1016/j.biomaterials.2008.10.001
更新日期：2009-01-01 00:00:00
