Materials Literature
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Hybrid gold nanoclusters exhibiting photoregulated release of nitric oxide are obtained by appropriate self-assembling of a suitable host, a photoactivable guest and Au nanoparticles. The excitation of the core, the shell or both components of the nanoclusters with visible light, together with their dark stability and…
A method of tuning a one-dimensional guided-mode resonance grating through the use of an air-pressure-responsive membrane is demonstrated here using finite-element method simulation. The device consists of a titanium dioxide (TiO(2)) grating structure embedded in a flexible polydimethylsiloxane membrane. This grating…
Hybridized sol–gel processing has been adopted to fabricate magnetic CoFe 2 O 4 composite thick films onto Pt/Ti/SiO 2 /Si substrate by the spin coating technique. The process includes the chemical synthesis of CoFe 2 O 4 sol–gel solution, the modified CoFe 2 O 4 particles via high‐energy ball milling, and the synthes…
A new kind of boron nitride (BN) whisker with a novel cap-stacked structure and excellent ultraviolet−visible luminescence properties has been successfully prepared via a facile chemical vapor reaction route. SEM analysis shows that the BN whiskers are uniform with a mean diameter of 1 μm and a length up to at least 1…
With the help of single molecule force spectroscopy and molecular dynamics simulations, we determine the surface-induced structure of a single engineered spider silk protein. An amyloid like structure is induced in the vicinity of a surface with high surface energy and can be prohibited in the presence of a hydrophobi…
The final morphology of the lamellar silsesquioxane produced from the (EtO)3Si(CH2)3NHC(=O)NH(CH2)12NHC(=O)NH(CH2)3Si(OEt)3 (P12) precursor using an acid-catalyst and a large excess of water was changed from rigid platelets (L12) to micro-objects that resemble sea sponges (L12D) upon simple mixing with dimethylsulfoxi…
Protein crystallization continues to be a major bottleneck in X-ray crystallography. Previous studies suggest that symmetric proteins, such as homodimers, might crystallize more readily than monomeric proteins or asymmetric complexes. Proteins that are naturally monomeric can be made homodimeric artificially. Our appr…
Nihility media in the previous literature are usually understood as media with = μ = 0. Transformation optics opens a new perspective for capturing the essence of such media. From this perspective, we generalize the definition of nihility media as transformation media derived from volumeless geometrical elements . A v…
Abstract A new efficient and mild protocol for synthesizing a series of novel bis(dipyrromethanes) with versatile arylene linkers through an indi‐ um(III) chloride‐catalyzed condensation reaction between various dialdehydes and pyrrole has been developed. This protocol is applicable to constructing a variety of bis(di…
Abstract Poly(lactic acid) (PLA) absorbable reinforcement ligaments that are used in orthopedics for the repair and reinforcement of articulation instabilities as well as PLA samples synthesized in the laboratory were studied with respect to their thermal properties, crystallization kinetics, mechanical properties, an…
Single-walled carbon nanotube (SWNT) networks were used to detect hazardous dimethyl-methyl-phosphonate (DMMP) gas in real time, employing two different metals as electrodes. Random networks of SWNTs were simply obtained by drop-casting a SWNT-containing solution onto a surface-oxidized Si substrate. Although the elec…
Polystyrene/poly(4-vinylpyridine) (PS/P4VP) particles with various morphologies such as popcorn-like (A), colloidal molecule NH(3) (B), colloidal molecule H(2)O (C) and mushroom-like (D) were generated by dynamically controlling and stabilizing the phase separation during the seeded swelling polymerization.
Purpose Grain‐oriented steel has a distinctly anisotropic and nonlinear behaviour. Only in rare cases is the magnetisation curve known for directions other than the principal ones. The paper aims at providing a model to obtain these curves for any direction if those in the easy and hard directions are only given. Desi…
There is a need to develop aqueous-phase synthesis methods of sub-10-nm Au nanoparticles (NPs), given their many exciting possibilities in catalysis, sensing, biomedical, and other water-based applications. Synthesizing Au NPs by reducing Au salt onto preformed NPs as seeds is a useful approach because final particle…
Based on the microscopic composition fluctuation model and phenomenological theory, a reasonable and effective characterizing parameter of the diffuseness degree of the diffused phase transition (DPT) was defined. The parameter equals to the temperature interval of and which correspond to the temperatures when reaches…
Epitaxial thin films of cobalt ferrite (CFO) single layer and CFO–lead zirconium titanate (PZT) bilayers were deposited on single crystal MgO (1 0 0) and SrTiO 3 (STO) (1 0 0) substrates by pulsed laser deposition. The structural properties were characterized using x-ray diffraction and atomic force microscopy. The ma…
The inherent or enhanced solid acidity of raw or activated diatomite is found to have significant effects on the synthesis of hierarchically porous diatomite-templated carbon with high surface area and special porous structure. The solid acidity makes raw/activated diatomite a catalyst for the generation of porous car…
Tissue engineering requires complex three-dimensional scaffolds that mimic natural extracellular matrix function. A wide variety of techniques have been developed to create both fibrous and porous scaffolds out of polymers, ceramics, metals, and composite materials. Existing techniques include fiber bonding, electrosp…
Interlayer exchange coupling (IEC) between two ${\text{Ga}}_{0.95}{\text{Mn}}_{0.05}\text{As}$ layers separated by Be-doped GaAs spacers was investigated experimentally using magnetization, magnetotransport and neutron-scattering measurements, which all indicated the presence of robust antiferromagnetic IEC when the G…
Structural and dynamical properties of iodine molecules incorporated in one-dimensional elliptic channels of AlPO(4)-11 (AEL) crystals were studied by means of molecular dynamics (MD) simulations. It was found that the iodine molecules in the AEL channels are restricted in the (101) planes with only two favorite orien…