Materials Literature
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There is enormous excitement and expectation surrounding the multidisciplinary field of nanomedicine - the application of nanotechnology to healthcare - which is already influencing the pharmaceutical industry. This is especially true in the design, formulation and delivery of therapeutics. Currently, nanomedicine is…
BACKGROUND: It has recently been demonstrated that zinc oxide nanoparticles (ZnO NPs) induce death of cancerous cells whilst having no cytotoxic effect on normal cells. However, there are several issues which need to be resolved before translation of zinc oxide nanoparticles into medical use, including lack of suitabl…
Icosahedrite, ideally Al 63 Cu 24 Fe 13 , is a new mineral from the Khatyrka River, southeastern Chukhotka, Russia. It occurs as dark gray-black anhedral to subhedral grains up to 100 μm across, closely associated with spinel, diopside, forsterite, nepheline, sodalite, corundum, stishovite, khatyrkite, cupalite, and a…
BACKGROUND AND OBJECTIVE: Recent rapid advances in nanotechnology raise concerns about development, production route, and diffusion in industrial and consumer products of titanium dioxide nanoparticles (TiO2-NPs). In fact, compared to recent increase in applications of this nanomaterial, the health effects of human ex…
We have investigated the magnetic and electrical response of the sol-gel synthesized NiFe2O4 nanoparticles. Changes in the impedance plane plots with temperature have been discussed and correlated to the microstructure of the material. Thermally activated hopping carriers between Fe3+-Fe2+ and Ni2+-Ni3+ ions have been…
Monte Carlo softwares are widely used to understand the capabilities of electron microscopes. To study more realistic applications with complex samples, 3D Monte Carlo softwares are needed. In this article, the development of the 3D version of CASINO is presented. The software feature a graphical user interface, an ef…
Abstract The European Food Safety Authority has developed a practical approach for assessing potential risks arising from applications of nanoscience and nanotechnologies in the food and feed chain. Guidance is provided on: (i) the physico‐chemical characterisation requirements of engineered nanomaterials used e.g. as…
Nanotechnology has wide applications in many fields, especially in the biological sciences and medicine. Nanomaterials are applied as coating materials or in treatment and diagnosis. Nanoparticles such as titania, zirconia, silver, diamonds, iron oxides, carbon nanotubes, and biodegradable polymers have been studied i…
The aim of this study was to develop novel biomedicated nanofiber electrospun mats for controlled drug release, especially drug release directly to an injury site to accelerate wound healing. Nanofibers of poly(vinyl alcohol) (PVA), poly(vinyl acetate) (PVAc), and a 50:50 composite blend, loaded with ciprofloxacin HCl…
Cellulose, potato starch, and eucalyptus wood saw dust were transformed into porous carbons with micropore surface areas of up to 2387 m2/g. The specific capacitance of the produced carbons approaches 236 F/g (100 F/cc) when measured in a symmetric configuration in an organic electrolyte. Charge-discharge tests showed…
The MAX phases are a group of layered ternary compounds with the general formula Mn+1AXn (M: early transition metal; A: group A element; X: C and/or N; n = 1–3), which combine some properties of metals, such as good electrical and thermal conductivity, machinability, low hardness, thermal shock resistance and damage t…
이 논문은 전투차량의 주 장갑재료로 사용되는 금속장갑재료의 개발현황 및 방탄성능에 영향을 미치는 조직학적 요인들을 중심으로 방탄성 향상을 위한 요소기술을 살펴보고, 향후 금속장갑재의 발전전망에 대하여 서술하였다. 금속장갑재는 요구되는 방호특성에 따라 사용되는 합금계가 다르지만 강도와 인성을 최적화하여 위협 탄에 대한 관통저항성 및 취성파단에 대한 저항성을 극대화하는 것이 필요하며, 이를 위해서는 금속재료의 방탄조건에서 특정적으로 나타나는 단열전단현상을 이해하고 적절히 제어하는 기술이 요구된다. This paper describes the state of the ar…
NEW modified anti-corrosive polyesteramide resins were obtained by condensation polymerization reaction between phthalic anhydride (PA) and N, N- bis - (2-hydroxyethyl) linseed oil fatty acid amide (HELA) which was partially replaced with 7- (2,3dihydroxepropyl) theophyline as the ingredient source of the polyol used.…
Strontium carbonates (SrCO3) microcrystals have been synthesised through a modified homogeneous precipitation method, in which urea plays an important role. Compared to the direct precipitation approach, the present homogeneous precipitation method tends to provide an appropriate chemical microenvironment for the form…
Poly(3-bromothiophene) (PBrT) was electrochemically synthesised on nano-WO3 surface in the ionic liquid 1-butyl-3-metyllimidazolium hexafluorophosphate ([BMIM]PF6) by potentiodynamic method. The PBrT/WO3 films were characterised by Fourier transform infrared spectroscopies, scanning electron microscopy and energy-disp…
The precautionary principle provides a framework for regulating emerging technologies in general and nanomaterials in particular. It counsels action in the presence of uncertainties about risk instead of assuming that nanomaterials are safe unless proven hazardous. Nanomaterials are regulated under different statutory…
The preparation of natural rubber/wood flour (NR/WF) composites and the influence of WF content, modification, and particle size on the vulcanizing behavior, mechanical properties, and water absorption of NR/WF composites are described. Results show that the addition of WF into NR delayed the scorching time and vulcan…
In this paper, the global study trends for material behaviors are investigated regarding the static and dynamic hardenings and final fractures of marine structural steels. In particular, after reviewing all of the papers published at the 4th and 5th ICCGS (International Conference on Collision and Grounding of Ship),…
The photochromic polymer and sol-gel hybrid materials containing azo isoxazole derivatives were prepared. These new materials were used to form transparent films on glass plates by spin-coating technique. The maximum absorption band of the film was observed at 412–414 nm and 422 nm for polymer and hybrid materials, re…
The fabrication of free-standing ultra-thin porous silicon membrane structures using xenon difluoride (XeF2)-based isotropic dry etching of thin silicon wafers is reported. Using this technique, the authors demonstrate 1, 5 and 10 µm-thick porous silicon membranes that are stable and self-supporting and of relatively…