Materials Literature
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In this research, the effect of adding graphene nanoplatelets on mechanical properties of epoxy resin under flexural bending stress in fatigue conditions was investigated. The fatigue tests of specimens were carried out under displacement-controlled bending loading at different displacement amplitudes at room temperat…
The Ni50Mn37Sb13 ribbons were prepared by melt-spinning technique to overcome the brittleness of bulk. A single phase austenite with L21 structure was confirmed in the as-spun and annealed ribbons at room temperature similar to bulk. We observe increments in the martensite transformation temperature (TM) from 238 K to…
Appearing with a trace! A new colorimetric nanosensor for CrVI from the amyloid fibrils of hen lysozyme has been developed (see picture). This nanosensor, which makes use of hen lysozyme fibrils as CrVI binders and acidified diphenylcarbazide (DPC) as the colorimetric probe, can specifically detect CrVI at the ppb lev…
Knowledge of the spatial distribution and evolution of embedded charge in thin dielectric materials has important applications in semiconductor, high-power electronic device, high-voltage DC power cable insulation, high-energy and plasma physics apparatus, and spacecraft industries. Knowing how, where, and how much ch…
Water-soluble gold nanoparticles (AuNP) stabilized with cavitands having carboxylic acid groups have been synthesized and characterized by a variety of techniques. Apparently, the COOH groups similar to thiol are able to prevent aggregation of AuNP. These AuNP were stable either as solids or in aqueous solution. Most…
Fe doped ZnO thin films with various levels of iron doping concentration (0, 1, 2, 3 at.%) content were produced by sol-gel dip coating method. The influence of Fe doping on the structural, morphological and optical properties of ZnO thin films was investigated. X-ray diffraction has shown that the films are polycryst…
We present an ab initio study of the electronic structure and of the formation energies of various point defects in BaSnO3 and SrGeO3. We show that La and Y impurities substituting Ba or Sr are shallow donors with a preferred 1 + charge state. These defects have a low formation energy within all the suitable equilibri…
ABSTRACT In the present work, chitin films were fabricated from chitin solution dissolved in 8 wt % NaOH/4 wt % urea aqueous systems at low temperature by coagulating with heating without using any coagulant. The formation of the chitin films was confirmed to be an entirely physical process, namely chitin inclusion co…
The development of multivalent protein ligands for nanoparticles lags behind that of multidentate polymers and small-molecule ligands largely because of a lack of thorough understanding of the interaction between nanoparticles and multimeric proteins. Guided by protein crystal structures, we have harnessed recombinant…
A novel approach to the synthesis of protein microcapsules is developed through template-mediated interfacial reaction. Protein-doped CaCO3 templates are first synthetized via coprecipitation and then coated with a catechol-containing alginate (AlgDA) layer. Afterward, the templates are exposed to ethylenediamine tetr…
Gate resistance plays a key role in determining the maximum oscillation frequency (fMAX) of all radio frequency transistors. This letter presents a new graphene device structure having multiple-finger T-shaped gates embedded in the substrate. The structure possesses several advantages over conventional top gate struct…
In the search of an efficient adsorbent for hydrogen fluoride (HF) gas without its chemical decomposition, experimentally synthesized point-defect-containing nitrogen-rich single vacant (SV) 2D sheets are studied using ab initio molecular dynamic simulations at room temperature and 1 atm pressure. Our calculations sho…
Many applications, such as magnets and SMES, are usually charged and discharged under a bias DC current, which may increase the AC loss. For their design, it is necessary to understand and predict the AC loss. This article analises the AC loss in magnet-like coils under DC bias contribution super-imposed to the AC cur…
Current chemotherapy treatments are limited by poor drug solubility, rapid drug clearance and systemic side effects. Additionally, drug penetration into solid tumors is limited by physical diffusion barriers [e.g., extracellular matrix (ECM)]. Nanoparticle (NP) blood circulation half-life, biodistribution and ability…
Intrinsic magnetic properties and magnetovolume effects have been investigated for the Hf0.825Ta0.175Fe2 itinerant-electron system, which exhibits a temperature-induced first-order transition from the ferromagnetic (FM) to the antiferromagnetic (AFM) state. The spontaneous volume magnetostriction contraction due to th…
ABSTRACT T‐shaped coil–rod–coil oligomers, consisting of a dibenzo[a,c]phenazine unit and phenyl groups linked together with acetylenyl bonds at the 2,7‐position of dibenzo[a,c]phenazine as a rigid segment have been synthesized. The coil segments of these new molecules composed of poly(ethylene oxide) (PEO)–poly(propy…
Various rare earth oxide nanostructures were synthesized for the first time by dual-double pulsed gas feeding/pulsed laser deposition. The optically transparent and insulating nanostructures do not exhibit the standard columnar configuration of rare earth oxide thin films but rather dense structures and a significant…
The aim of this study was to investigate the decay resistance of wood- polypropylene composites (WPCs) treated with nano-zinc oxide against the white rot fungus Trametes versicolor and the brown rot fungus Coniophora puteana. WPCs containing different loadings of nano-zinc oxide, namely 0, 1, 2, and 3 percent (by weig…
Scanning probe microscopy has emerged as a powerful and flexible tool for atomically resolved imaging of surface structures. However, due to the amount of information extracted, in many cases the interpretation of such data is limited to being qualitative and semi-quantitative in nature. At the same time, much can be…
Self-assembled films built from nanoparticles with a high dielectric constant are attractive as a foundation for new dielectric media with increased efficiency and range of operation, due to the ability to exploit nanofabrication techniques and emergent electrical properties originating from the nanoscale. However, be…