Showing papers in "Materials Science and Engineering: C in 2013"

TL;DR: The photocatalytic degradation of organic dyes such as methylene blue and methyl orange in the presence of various percentages of composite catalyst under visible light irradiation was carried out by new thermal decomposition method, which is simple and cost effective.

TL;DR: This review discusses the application of chitosan and its blends with other natural polymers such as starch and other ingredients for example essential oils, and clay in the field of edible films for food protection.

TL;DR: In this study, the catalysts were prepared by thermal decomposition method, which was employed for the first time in the preparation of ZnO/Ag nanocomposite catalysts, and results suggest better photocatalytic properties for 10 wt.% Ag sample compared to other samples.

TL;DR: The photocatalytic activities of prepared catalysts were evaluated using the degradation of aqueous methylene blue solution as a model compound under visible light irradiation and results suggested that the prepared CeO 2/V2O5 and CeO2/CuO nanocomposites can generate more electrons and holes under visibleLight irradiation.

TL;DR: Positive results of MTT assay and DNA quantification L929 mouse fibroblast cells indicated that the scaffold made from the combination of natural polymer (gelatin) and synthetic polymer (PCL) may serve as a good candidate for tissue engineering applications.

TL;DR: The magnetic properties, synthesis methods and some medical applications, including the hyperthermia, magnetic resonance imaging (MRI), magnetic separation and drug delivery of cobalt ferrite nanoparticles are introduced.

TL;DR: This review article concentrates on the electrochemical biosensor systems with conducting polymers, including polypyrrole, polythiophene, poly(3,4-ethylenedioxythiophene), polycarbazole, polyaniline, polyphenol,poly(o-phenylenediamine), polyacetylene, polyfuran and their derivatives.

TL;DR: The three-stage mechanism of fatigue failure of these porous structures is described and studied in detail, and it was found that the absolute S-N curves of these four porous structures are very different.

TL;DR: C-dots synthesized by the highly economical plant based method using Indian water plant Trapa bispinosa peel extract were found to be exceptionally biocompatible against MDCK cells.

TL;DR: In vivo histocompatibility study in mice indicates a muted immune response to subcutaneous SU-8 implants, comparable to that of FDA approved implant materials such as silicone elastomer, Buna-S and medical steel.

TL;DR: This study demonstrated the feasibility of mass producing biocompatible PLA/TPU scaffolds with tunable microstructures, surface roughnesses, and mechanical properties that have the potential to be used as artificial scaffolds in multiple tissue engineering applications.

TL;DR: Results showed that Ti2Cu phase and Cu-rich phase were synthesized in the Ti-Cu sintered alloy, which significantly increases the hardness and the compressive strength compared with cp-Ti and slightly improves the corrosion resistance.

TL;DR: The newly developed nickel-free high nitrogen austenitic stainless steel is a reliable substitute for the conventionally used medical stainless steels.

TL;DR: A brief summary on the different ferrite nano-magnetic particles and coatings used in nanomedicine is given.

TL;DR: Two modified scaffolds added to the thermosensitive chitosan/glycerophosphate hydrogels to reinforce two hydrogel constructs which were used as scaffold for hyaline cartilage regeneration showed support of the chondrogenic phenotype for chondrocytes and could be employed for cartilage tissue engineering.

TL;DR: These results could be utilized to understand the extension and rupture mechanism of coronary arteries and has implications for interventions and surgeries, including balloon-angioplasty, bypass, and stenting.

TL;DR: The biological safety and glass forming tendency in Ti of 27 elements is critically reviewed to be used as a basis for the future designing of novel amorphous Ti-based implant alloys entirely free of harmful additions.

TL;DR: The CI of sound human tooth enamel and synthetic hydroxyapatite was measured by X-ray diffraction and Fourier Transform Infrared spectroscopy, at room temperature and after heat treatment, and both indices showed similar qualitative behavior for heat-treated samples.

TL;DR: In this article, a study was conducted to assess whether porous Selective Laser Melting (SLM)-NiTi is a suitable carrier material for human mesenchymal stem cells (hMSC).

TL;DR: An overview of recent scientific achievements in the development of new synthetic SPMNP probes whereby the sensitive and target-specific observation of biological events at the molecular and cellular levels is feasible is presented.

TL;DR: The oral administrations of chitosan/insulin nanoparticles were effective in lowering the blood glucose level of alloxan-induced diabetic mice and showed promising effects as potential insulin carrier system in animal models.

TL;DR: It can be suggested that magnetic chitosan nanoparticles could serve as a promising adsorbent for Cr(VI) in wastewater treatment technology.

TL;DR: In vitro and in vivo assays were carried out to evaluate the applicability of a dextran hydrogel loaded with chitosan microparticles containing epidermal and vascular endothelial growth factors, for the improvement of the wound healing process and disclosed that these systems are biocompatible, contributed to the re-establishment of skin architecture and can be used in a near future for the controlled delivery of other bioactive agents used in regenerative medicine.

TL;DR: Assessment of the tensile properties of the scaffolds revealed that for a scaffold with 50% chitosan, glutaraldehyde, as a cross-linking agent, created much tighter polymeric network compared to N,N-(3-dimethylaminopropyl)-N'-ethyl carbodiimide (EDC), in the case of gelatin scaffolds, EDC was identified as the stronger cross-linker.

TL;DR: Electrospinning of fibrous scaffolds containing nano-hydroxyapatite (nHAp) embedded in a matrix of functional biomacromolecules offers an attractive route to mimicking the natural bone tissue architecture.

TL;DR: Study of fibroblast cells interaction with prepared polyurethanes showed promising cells viability, and MQAP based samples with higher concentration of QASs showed better adhesion strength, surface hydrophilicity and antibacterial activity (about 95% bacterial reduction).

TL;DR: Gum tragacanth (GT) is one of the most widely used natural gums which has found applications in many areas because of its attractive features such as biodegradability, nontoxic nature, natural availability, higher resistance to microbial attacks and long shelf-life properties.

TL;DR: With a simplified strategy, this electrochemical aptasensor shows a good sensitivity to AFM1 in the range of 6-60 ng·L(-1), with the detection limit of 1.98 ng· L(-1).

TL;DR: The prepared nanohybrids system offers a novel formulation that combines the unique properties of a biodegradable material, gelatin, and graphene for biomedical applications, and the gelatin-GNS with good stability and biocompatibility can be selected as an ideal drug carrier to be applied in biomedicine studies.

TL;DR: All the alloying elements showed hardening and strengthening effects on magnesium, and Cytotoxicity tests indicated that Ga had the lowest toxicity, followed by Sn, and the most severe toxicity was observed in the case of In.