in this article, zno and zno:mn nanoparticles prepared by reverse micelle method. the various crystalline properties of these nanoparticles such as size, d-spacing, strain, stress, dislocation density and texture coefficient have been calculated with the help of xrd spectrum. the xrd results indicated that the synthesized zno and zno:mn nanoparticles have a pure wurtzite (hexagonal phase) struc...

EMA is a method to estimate the dielectric response of a compound material [1]. We study a nanocrystalline film compound manufactured under highly nonequilibrium conditions, composed of crystalline silicon, c-Si, amorphous silicon, a-Si, and voids. The structure of crystalline silicon can be modified by introducing amorphous silicon. So, the optical properties can be changed because another pha...

We discuss the macroscopic properties of several classes of polar liquid crystalline phases. We focus on polar biaxial liquid crystalline phases made of achiral molecules with ̄uidity in two and three spatial dimensions. The classes we examine include polar biaxial nematic phases, orthogonal biaxial smectic phases with anisotropic in-plane ̄uidity and tilted polar biaxial smectic phases with in...

zno and zro2 photo catalysts were synthesized by sol-gel auto combustion method. the products were characterized by x-ray diffraction (xrd) and scanning electron microscopy (sem). structural and morphological properties of nano particles were investigated and the average crystalline size of zno and zro2 was obtained 44 and 51 nm, respectively. also, photo catalytic degradation of nitro phenol f...

the synthesis of nano- structured cobalt through a controlled chemical process followed by heat treating at various temperatures is studied. the product is characterized by icp, xrd, fesem , and tem, indicating that the as- synthesized particles have an amorphous structure with 1.76 for co/b ratio, an average size of 50 nm. the transformation of intermediate phases into single phase nano- cryst...

Serological reactions are becoming increasingly important in the development of quantitative methods for the determination and characterization of native proteins. These reactions provide a basis for analytical methods that combine high sensitivity with a high degree of specificity. In contrast to conventional methods, which distinguish different proteins by their chemical and physical properti...

A series of anthraquinone-imide-based dimers, C5 -AQI-Si2, C5 -AQI-Si3, C5 -AQI-Si4, and C5 AQI-Si8, have been prepared by the hydrosilylation of N-(hex-5-enyl)-6-(40-((S)-2-methylbutoxy)phenyl)anthraquinone-2,3-dicarboxylic imide and hydride-terminated siloxanes with different lengths. Their liquid crystalline behaviors, and piezochromic and near-infrared electrochromic properties have been ch...

Phosphorene, also known as monolayer black phosphorous, has been widely used in electronic devices due to its superior electrical properties. However, its relatively low Young's modulus, low fracture strength and susceptibility to structural failure has limited its application in nano devices. Therefore, in order to design more mechanically reliable devices that utilize phosphorene, it is neces...

Biological systems provide many examples of specifically tailored, nanostructured molecules with highly optimized properties and characteristics. These biomaterials are composite materials and consist of an inorganic component and a special organic matrix. Crystalline bacterial cell surface layers (S-layers( are the outermost cell envelope component of many eubacteria and archaea and are compos...