Materials Literature
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Magnetic iron oxide nanoparticles are considered for various diagnostic and therapeutic applications in brain including their use as contrast agent for magnetic resonance imaging or as tool for magnetic drug delivery. However, little is known so far on the consequences of a treatment of brain cells with such nanoparti…
Studies on potential toxicity of engineered nanoparticle (ENP) in biological systems require a proper and accurate particle characterization to ensure the reproducibility of the results and to understand biological effects of ENP. A full characterization of ENP should include various measurements such as particle size…
We report the fabrication of organic Schottky diodes on indium tin oxide (ITO) coated glass by electrochemically polymerized polycarbazole (PCz) with configuration ITO/PCz/Al. The diode has been characterized in respect of electrical and optical properties. The study involves estimation of optical bandgap of the polym…
Nanofibrous electrospun poly (epsilon-caprolactone) (ePCL) scaffolds have inherent structural advantages, but lack of bioactivity has limited their usefulness in biomedical applications. Thus, here we report the development of a hybrid, nanostructured, extracellular matrix (ECM) mimicking scaffold by a combination of…
The objective of the present experiment was to evaluate potential toxicological effects of hydrocolloids of silver and alloys of silver/copper and silver/palladium nanoparticles, administrated to chicken embryo. Hydrocolloids (0.3 ml), containing 50 ppm of nanoparticles, were injected in ovo prior to incubation of egg…
Gold nanoparticles were synthesized using a seed-mediated wet chemical approach with a polymerizable surfactant, 11-(acryloyloxy)undecyltrimethylammonium bromide. The polymerizable surfactant forms a bilayer on the surface of the gold nanoparticles with the quaternary positive head groups facing the bulk water, and th…
We have investigated the structural, optical, and electrical properties of alumina-doped zinc oxide (AZO) thin films, grown by pulsed laser deposition. The optical transmittance of the films is over 80% in the visible region, and the absorption edge shifts from about 380 nm of the undoped sample to 320 nm of the AZO f…
AIMS: We synthesized a novel system of docetaxel-loaded, trastuzumab-functionalized nanoparticles (NPs) of biodegradable copolymers for targeted and synergistic chemotherapy. MATERIALS & METHODS: NPs of two component biodegradable copolymers were prepared by a modified solvent extraction/evaporation method with D-alph…
Electrodeposition of nanowire array in porous anodic alumina (PAA) templates combine the performance benefits offered by crystallographic texture control, lattice thermal conductivity suppression through boundary scattering of phonons, elastic relaxation of misfit strain, and scalablity essential for high efficiency t…
Abstract magnified image The ring‐opening polymerization (ROP) of trimethylene carbonate (TMC) was evaluated in bulk at 60–110 °C using various catalyst systems based on bio‐friendly metals, including the metal bis(trimethylsilylamides) Mg[N(SiMe 3 ) 2 ] 2 , Ca[N(SiMe 3 ) 2 ] 2 (THF) 2 , Y[N(SiMe 3 ) 2 ] 3 , (BDI)Fe[N…
Phase pure ZrB2 and HfB2 powders were synthesized by boro/carbothermal reduction (BCTR) of ZrO2 and borothermal reduction of HfO2, respectively. Combining the thermodynamic calculations and XRD results, the reaction process of BCTR of synthesized ZrB2 powder was shown. The ZrB2 powder synthesized at 1650 °C showed a b…
Dielectric properties of textile materials have been used in process and quality control in relation to the moisture content, unevenness, drying, static generation, etc. Although dielectric properties of fibres and fibrous assemblies have been the subject of study of many researchers for a long time, the understanding…
OBJECTIVES: Polymeric nanoparticles have been extensively studied as drug carriers. Chitosan and its derivatives have attracted significant attention in this regard but have limited application because of insolubility in biological solution. In this work, we attempted to utilize cholesterol-modified glycol chitosan (C…
Thermophysical, magnetic, and dielectric properties of multiferroic BiFeO3 and Bi0.95La0.05FeO3 ceramic compounds were comprehensively studied. Anomalies of the permittivity near an antiferromagnetic phase transition related to the structural variations were detected. The temperature T N was determined from the temper…
Low temperature charge transport in vanadium oxide (VOx) thin films processed using pulsed dc sputtering is investigated to understand the correlation between the processing conditions and electrical properties. It is identified that the temperature dependent resistivity ρ(T) of the VOx thin films is dominated by a Ef…
We propose the existence of an optimal Seebeck coefficient (Sopt) for three-, two-, and one-dimensional thermoelectric materials. This assertion is supported by an exhaustive comparison with experimental data of well characterized bulk thermoelectrics, all of which have shown that the power factor is maximized when So…
In this article, the authors describe new approaches to synthesize and pattern surfaces with poly[oligo(ethylene glycol) methyl methacrylate] (POEGMA) polymer brushes synthesized by surface-initiated atom transfer radical polymerization. These patterned coatings confer "nonfouling" properties protein and cell resistan…
Materials take on exceptional properties as we enter the nanodomain and Electromaterials: those that transport and/or transfer charge are no exception. As such the ability to impart nanostructure to electrodes is having a dramatic effect on areas such as energy conversion and storage.
This paper summarizes some of the recent work that has been conducted in search of new dielectric ceramic materials that can operate at temperatures between 180 to 350°C. High temperature perovskite relaxor materials were developed with compositions close to morphotropic phase boundaries (MPB) within xBi(Me'Me'')O3-yP…
The electron transport behavior of polymer‐derived amorphous silicon oxycarbonitride ceramics is studied by measuring their temperature‐dependent electrical conductivities. The experimental results are analyzed using theoretical models. The results reveal that the materials exhibit three conduction mechanisms: conduct…