Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Self-assembling peptides have been previously designed that assemble into macroscopic membranes, nanotapes, and filaments through electrostatic interactions. However, the formation of highly ordered collagen-like fibrils, which display D-periodic features, has yet to be achieved. In this report, we describe for the fi…
This theoretical study discusses the interplay of the magnetic anisotropy and magnetic exchange interaction of two Mn6 complexes and suggests that large magnetic anisotropy is not favoured by a high spin state of the ground state.
We examine how the misorientation of a few stacked graphene layers affects the electronic structure of carbon nanosystems. We present ab initio calculations on bilayer and trilayer systems to demonstrate that the massless fermion behavior typical of single-layered graphene is also found in incommensurate multilayered…
Among several important considerations for implantation of a biomaterial, a main concern is the introduction of infection. We have designed a hydrogel scaffold from the self-assembling peptide, MAX1, for tissue regeneration applications whose surface exhibits inherent antibacterial activity. In experiments where MAX1…
Monodispersed Cu2O nanocubes with approximate average sizes of 40, 65, 100, 230, and 420 nm have been prepared using a seed-mediated synthesis approach in aqueous solution. The standard deviation of the nanocube sizes in each sample is below 10 %.
We report a biomimetic procedure to prepare superhydrophobic cotton textiles. By in situ introducing silica particles to cotton fibers to generate a dual-size surface roughness, followed by hydrophobization with polydimethylsiloxane (PDMS), normally hydrophilic cotton has been easily turned superhydrophobic, which exh…
In addition to identifying the proteins that have a role in underwater adhesion by marine mussels, research efforts have focused on identifying the genes responsible for the adhesive proteins, environmental factors that may influence protein production, and strategies for producing natural adhesives similar to the nat…
Benthic diatom flora of the River Danube was investigated along the river from the source streams to the end of the Hungarian stretch during a four-year period. Characteristic diatom community assemblages were established using KOHONEN Self-Organizing Map (SOM) algorithm. We found five sample clusters, arranged accord…
The electron-doped Ca 0.85 La 0.15 MnO 3 system exhibits a charge ordering transition at ∼135 K ( T CO ) with the antiferromagnetic Néel temperature at 160 K ( T N ). The resistivity data above and below T N (down to 90 K) are found to follow the small polaron hopping conduction mechanism. The corresponding activation…
The accumulation dynamics and the spatial and temporal variation of heavy metals in streams located in different regions in the Republic of Karelia (Northwestern Russia) were determined by collecting attached algal communities dominated by diatoms (Didymosphenia geminaia, Gomphonema spp.), green (Zygnema spp., Mougeot…
Abstract The effects of dynamic vulcanization (DV) and dynamic vulcanization plus compatibilizer (DVC) of paper sludge (PS) filled polypropylene/ethylene propylene diene terpolymer (PP/EPDM) composites on torque development, mechanical properties, water absorption, morphology, and thermal properties were studied. Resu…
The purpose of the paper is (1) to make an inventory of the diatom assemblages of the Hungarian running water types; (2) to assess relationships between the species composition and environmental variables; (3) to adapt existing metrics to the Hungarian situation; and (4) to present a map of the of diatom inferred qual…
Epilithic diatom assemblages were used to evaluate water quality in the Akcay Stream which is one of the essential tributaries of the Buyuk Menderes River in the west of Turkey. This branch was polluted especially by agricultural and urban wastes. In this study, the chemical characteristics and epilithic diatoms were…
We studied electrical transport in magnetic semiconductors, which is determined by scattering of free carriers off localized magnetic moments. We calculated the scattering time and the mobility of the majority- and minority-spin carriers with both the effects of thermal spin fluctuations and of spatial disorder of mag…
The complete sequence of the pha locus responsible for the biosynthesis of poly(hydroxyalkanoates) (PHAs) in Pseudomonas corrugata 388 was determined. As with the other known pseudomonad pha gene loci, the one in P. corrugata 388 also consists of phaC1 (1,680 bps; PHA synthase 1), phaZ (858 bp; PHA depolymerase) and p…
We fabricated aluminum fluoride (AlF(3)) thin films by pulsed DC magnetron sputtering with various CF(4) flow rates and sputtering powers. Our method is distinct from the conventional deposition process in that we used inexpensive Al (99.99% purity) as the target instead of an expensive fluoride compound. The optical…
Abstract Polydimethylsiloxane (PDMS) rubbers exhibit good mechanical properties for biomedical and industrial applications, but their inherently high hydrophobicity limits biomedical applications of this material despite its favorable mechanical properties. In this work, surface modification of PDMS by radio‐frequency…
This paper investigates the sequence of morphological transitions in a nearly hard sphere arrangement confined in a wedge cell. A model that shows smooth transitions between the different particle orderings for a small number of layers is proposed. In this model, both the buckling and the (100) hexagonal close packed…
We have characterized a close-packed structure of confined charged colloidal spheres, which has been recently discovered. Using different microscopy experiments, the vertically arranged hexagonal planes of n - hcp perpendicular are found to continuously evolve from the horizontally oriented stacks of n hexagonal plane…
Diffraction of electromagnetic waves by periodic grating waveguides is investigated by using a rigorous integral equation method, which combines semianalytical techniques and the Method of Moments with entire domain basis functions. The electric field integral equation is employed with unknown function the electric fi…