Showing papers in "Materials Science and Engineering: C in 2014"

TL;DR: Books indicated that the particle size was the essential parameter which determined the antimicrobial effectiveness of the metal nanoparticles, and further studies should be performed to minimize the toxicity of metal and metal oxide nanoparticles to apply as proper alternatives for antibiotics and disinfectants especially in biomedical applications.

TL;DR: In this review, the most recent advances in nonenzymatic glucose sensors are visited, with the focus being on the last five years of research.

TL;DR: These CDs acted as excellent fluorescent probes in cellular imaging of bacteria (Escherichia coli and yeast) and yeast (Saccharomyces cerevisiae) and were characterized by UV-visible, fluorescence, Fourier transform infrared, dynamic light scattering, high-resolution transmission electron microscopic (HR-TEM), and laser scanning confocal microscopic techniques.

TL;DR: The observed characteristics and results obtained in in vitro assays suggest that the copper nanoparticles might be a potential anticancer agent.

TL;DR: The article assesses the recent advancement of biodegradable nanofibers in different biomedical applications, including tissue engineering, drug delivery, biosensor and immunoassay, and the basic theory and parameters of nan ofibers fabrication are introduced.

TL;DR: The results from the antimicrobial assays suggested that green synthesized silver nanoparticles (PLAgNPs) were more potent against pathogenic bacteria than the P. longum fruit extract alone and showed powerful antioxidant properties in in vitro antioxidant assays.

TL;DR: This manuscript scopes to review the mechanism of the calcium carbonate crystal growth highlighting the factors stabilizing the vaterite polymorph in the most cost efficient synthesis routine.

TL;DR: This is the first report on sustainable biosynthesis of zinc oxide nanocrystals employing Nephelium lappaceum L., peel extract as a natural ligation agent using zinc-ellagate complex formation using rambutan peel wastes.

TL;DR: It was concluded that the Cu content affects the Cu existence and the Cu ion release behavior, which in turn influences the antibacterial property.

TL;DR: Application of a water-based binder ensured the manufacture of CaP:CaSO4 constructs on a reliable and repeatable basis, without long term damage of the printhead.

TL;DR: This review focuses from an engineering perspective on the different parameters that should be considered before and during the design of new nDDS, and the different manufacturing techniques available, in such a way to ensure success in clinical application.

TL;DR: Results indicate that the PVA/CNW materials are promising to be used as wound dressing and can be considered as a good barrier against different microorganisms.

TL;DR: The collagen type I-modified PCL/gelatin/collagen type I composite nanofibrous scaffold was successful in maintaining characteristic shape of fibroblasts, besides good cell proliferation, and might be a potential candidate for wound healing and skin tissue engineering applications.

TL;DR: It is concluded that, in majority of cases, the SBF immersion test has been successful in predicting the relative performance of biomaterials in vivo, however, the details of the test protocols and the (expected) mechanisms of bioactivity of tested biomaterial’s should be carefully considered in the design ofSBF immersion tests and in interpretation of their results.

TL;DR: Results indicated that the presence of PEG not only improves PLA processing but also leads to relevant surface, geometrical and structural changes including modulation of the degradation rate of PLA-based 3D printed scaffolds.

TL;DR: It was revealed that the antibacterial abilities of the two nanocomposites against L. monocytogenes are associated with both bactericidal and bacteriolytic effects.

TL;DR: This review summarizes recent advances in the synthesis and self-assembly of PCL-containing amphiphilic block copolymers and their bio-related applications including drug delivery and tissue engineering.

TL;DR: The elasticity modulus of the alloys was sensitive to the zirconium concentrations while remaining within the range of values of conventional titanium alloys.

TL;DR: This review aims to provide the state-of-the-art overview of the recent advances in field, discusses new perspectives and challenges in the regeneration of specific tissues, and highlights some of the limitations of current systems for possible future advancements.

TL;DR: An indication of the potential in-vivo bioactivity of samples was achieved by analysing samples immersed in SBF for up to 28 days by interferometry and complementary SEM micrographs.

TL;DR: The research described here aims to inform researchers interested in melt electrospinning about technical aspects of the process, including rapid fiber characterization using glass microscope slides, allowing influential processing parameters on fiber morphology to be assessed, as well as observed fiber collection phenomena on different collector substrates.

TL;DR: Electrospun silk fibroin scaffolds were modified by γ-glycidoxypropyltrimethoxysilane (GPTMS) for uniform dispersion and enhanced interfacial bonding between HAp and SF fibers and the biocompatibility of the composite scaffolds was confirmed.

TL;DR: In this study gelatin (Gel) modified with calcium phosphate nanoparticles (SG5) and polycaprolactone (PCL) were used to prepare a 3D bi-layer scaffold by collecting electrospun PCL and gelatin/SG5 fibers separately in the same collector to enhance mineralization, thus improving the ability of the scaffold to bond to the bone tissue.

TL;DR: From the TMA correlated with TG analysis and heat capacity data it can be concluded that sintering temperature of the synthetic samples should be chosen in the temperature range of the onset of dehydroxylation and the temperature at which oxyapatite decomposition begins.

TL;DR: A novel ionic liquid modified NiO/CNTs carbon paste electrode (IL/NiO/CNTCPE) fabricated by using hydrophilic ionicLiquid 1-methyl-3-butylimidazolium chloride [MBIDZ]Cl as a binder exhibited a potent and persistent electron mediating behavior followed by well separated oxidation peaks of morphine and diclofenac.

TL;DR: In this paper, a mixture of antibacterial polyethylenimine (PEI) was blended with Silk fibroin (SF) and bionanotextiles were successfully fabricated by electrospinning.

TL;DR: Using carboxyl functionalized silica-coated magnetic nanoparticles (MNPs) as carrier, a novel immobilized porcine pancreatic lipase (PPL) was prepared through the 1-ethyl-3-[3-dimethylaminopropyl] carbodiimide hydrochloride/N-hydroxysuccinimide (EDC/NHS) coupling reaction.

TL;DR: The proposed sensor was successfully applied for the determination of uric acid in biological fluids and increased linearly with the concentration of UA in the range from 0.60 to 100.0 μM, with a detection limit of 0.13 μM.

TL;DR: The results of this study have highlighted the potential application of this bioelectroactive polyurethane as a platform substrate to study the effect of electrical signals on cell activities and to direct desirable cell function for tissue engineering applications.

TL;DR: The adult potato beetle is more appropriate than the larvae as an alternative chitin source because of the fact that its dry weight chitIn content, chitosan yield and purity of chit in are higher than those from the larvae, and its antimicrobial and antioxidant activities are also higher than that from the larva.