Showing papers in "Materials Science and Engineering: C in 2007"

TL;DR: Post-processing of these scaffolds to improve internal proliferation is expected to yield considerable benefits as tissue engineering matures as a subdiscipline and the limits of the basic electrospinning process are more widely realized.

TL;DR: Nanocrystalline calcium phosphate based bioceramics are the new rage in biomaterials research as discussed by the authors, which is mainly concentrated on bioactive and bioresorbable ceramics, i.e., hydroxyapatite, bioactive glasses, tricalcium phosphates and biphasic calcium phosphates.

TL;DR: In this paper, a 3-dimensional (3-D) network was synthesized via a biological route by soaking both phosphorylated and unphosphorylated BCs in 1.5 simulated body fluid (SBF).

TL;DR: In this paper, a restricted set of nanostructure classes was suggested to build from the constituting elementary units, namely, 0D clusters and particles, 1D nanotubes and nanowires, 2D nanoplates and layers.

TL;DR: In this article, a lead magnesium niobate-lead titanate (PMN-PT) ferroelectric powder was used to develop a particulated composite based on a silicone elastomer matrix, with improved dielectric permittivity.

TL;DR: The adsorption properties of apatite nanocrystals appear to be strongly dependent on the composition of the hydrated layer and on ageing in aqueous media as discussed by the authors.

TL;DR: Cell printing opens the possibility to programmed deposition of scaffold structure and cell type, thus controlling the type of tissue that can be regenerated within the scaffold, and suggests that the printing method could be used for hierarchical design of functional cardiac patches, balanced with porosity for mass transport and structural support.

TL;DR: The presentation will report the recent research on development of a novel multi-nozzle biopolymer deposition system for freeform fabrication ofBiopolymer-based tissue scaffolds and cell-embedded tissue constructs and results of study on deposition feasibility and 3D structural formability of alginate-based scaffolds will be reported.

TL;DR: In this paper, the authors combined reverse micelle and hydrolysis to synthesize composite nanoparticles consisting of anatase-titania photocatalytic shell and nickel ferrite magnetic core.

TL;DR: A characterization of differently sized aluminum powders, by using specific surface measurements, Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), and X-ray Photoelectron Spectroscopy (XPS), was performed in order to evaluate their performance in solid propellant.

TL;DR: In this article, the authors made an attempt to synthesize nanocrystalline bioactive hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2, HAp) ceramic powder using a simple low-temperature sol-gel technique and studied its densification behavior.

TL;DR: In this article, the structural, mechanical, and biological properties of hydroxyapatite thin films are described and future directions in pulsed laser deposition of hydroxypatite are discussed.

TL;DR: In this article, the sintering and grain growth of hydroxyapatite green bodies are analyzed in order to identify the optimum heat treatments for the preparation of porous hydroxypatite scaffolds.

TL;DR: This review describes recent advances of nanostructured materials for biomedical applications and several current interests in biomedical applications for modified and functionalized nanostructure materials are emphasized.

TL;DR: In this article, the in vitro degradation behaviors of these scaffolds were systematically monitored for varying time periods of 1, 7, 14, 21 and 28 days post-immersion in simulated body fluids (SBF).

TL;DR: In this article, a surface modification technique of the poly(e-caprolactone) membrane by coating with electrospun nanofibers was reported, where the purpose was to mimic the architecture of the natural extracellular matrix and create nanotopography for enhanced cellular attachment.

TL;DR: In this paper, the influence of binder concentration in the slurry for pre-coated particle on the properties of hydroxyapatite part fabricated by three-dimensional printing (3DP) was demonstrated.

TL;DR: In this article, the analysis of microstructure and phases formed during water quenching of β Ti-20Nb alloy through different cooling rates was carried out using X-ray diffractometry (XRD), scanning (SEM) and transmission electron microscopy (TEM).

TL;DR: In this paper, size-controlled synthesis of hydroxyapatite nanorods was carried out by chemical precipitation method using citric acid, sodium dodecyl sulphate, and sodium dodecaylbenzene sulphonate as organic modifiers and starting from calcium nitrate, phosphoric acid, and ammonia solution.

TL;DR: In this article, the effect of powder morphology on densification at 1250°C was studied with different amount of rod-shaped and spherical nanopowders and it was observed that an increase in high aspect ratio powder content in the compacts decreased sintered density under pressureless sintering condition.

TL;DR: In this paper, a sol-gel method using eucalyptus bleached kraft pulp as cellulose source and tetraethyl orthosilicate (TEOS) as the silica precursor in the presence of heteropoly acids (HPAs) as catalysts.

TL;DR: In this paper, temperature-sensitive poly(N-isopropylacrylamide) gels were synthesized with micron-sized iron and iron oxide (Fe3O4) particles to investigate their viability for combined hyperthermia and drug release applications.

TL;DR: In this paper, the authors describe biomimetic calcium phosphate (Ca-P) coatings formation under simulated physiological conditions on Ti surfaces that go through nitric acid treatment (NT), which is used to treat Ti specimens so that Ti specimens could have the ability to induce Ca-P formation.

TL;DR: In this paper, the authors used the multi-wall carbon nanotubes (MWCNT) to develop a new material for sensing macro-scale strain for polyisoprene composites.

TL;DR: The aim of this study is to prepare lysozyme-imprinted polymers which can be used for the purification of Lysozyme from aqueous solutions and egg white and to determine the lyso enzyme activity using Micrococcus lysodeikticus as substrate.

TL;DR: In this article, the authors describe calcination of calcium phosphate ceramics (hydroxyapatite, HA) at 200, 400, 600, 800 and 1000°C to observe the phase change using X-ray diffraction.

TL;DR: A qualitative study on adhesion of the oral bacteria Porphyromonas gingivalis on titanium (Ti), titanium nitride (TiN), fluorine modified hydroxyapatite (FHA), and zinc modified FHA (Zn-FHA) thin films is investigated in this paper.

TL;DR: In this article, the variability of mechanical properties of Bombyx mori silk is investigated at both the intraspecific and intraindividual levels, and the dependence of such parameters as Young's modulus and tensile strength upon the diameter of silk was also analyzed, and distinct size effects were observed in these properties.

TL;DR: In this article, the authors obtained a novel nanofibrous collagen-GAG scaffold by electrospinning with collagen and chondroitin sulfate (CS), a widely used GAG.