Materials Literature
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Hybrid nanofibers of poly(lactic acid) and polycaprolactone have been developed by embedding cancerous drug through electrospinning technique. The composition of polymer has been varied to check the compositional effect on properties. The quality of nanofibers has been testified through surface morphology, wetting pro…
Nanotechnology is essentially related with the synthesis of nanoparticles of varying size and shapes. With the search of environment- friendly protocols for the synthesis of nanoparticles a diverse group of biological agents have been emerged. These biological agents are safe, eco-friendly and lead to green synthesis…
Atomic-scale simulations are performed to study the effect of solute segregation on the shear-induced motion of select grain boundaries in the classical $α$-Fe/C system. At shear rates larger than the solute diffusion rate, we observe a transition from coupled motion to sliding. Below a critical solute excess, the bou…
We develop an effective potential approach for assessing the flow of charge within a two-dimensional donor-acceptor/metal network based on core-level shifts. To do so, we perform both density functional theory (DFT) calculations and x-ray photoemission spectroscopy (XPS) measurements of the core-level shifts for three…
Optical losses and energy-transfer upconversion (ETU) in sputter-deposited polycrystalline ErxY2-xSiO5thin film waveguides are investigated. We find that the high temperature anneal that is necessary for crystallization and optical activation of Er induces grain growth that causes large propagation losses. Through min…
We have investigated the process of nucleation and growth and its reversal (i.e., dissolution) of ordered poly(γ-benzyl l -glutamate) (PBLG) objects in thin film solutions containing a few percent of α-helical PBLG dissolved in chloroform. Nucleation, growth, and dissolution rate were controlled by adding and removing…
In order to investigate the magnetic and the electrical properties of Mn2-xCuxSb (x =0.06, 0.10, and 0.15), the magnetization and the electrical resistivity measurements were carried out in the temperature range from 10 K to 300 K under magnetic fields up to μ0H=5 T. The Curie temperature TCof Mn1.94Cu0.06Sb was deter…
SbBiTe alloys have been some of the most efficient thermoelectric materials near room temperature. Here we synthesized a complete nanocomposite using γ‐ray irradiation, in which Au/AuTe 2 nanoparticles are dispersed uniformly without aggregation in the Sb 1.6 Bi 0.4 Te 3 matrix. The lattice thermal conductivity was si…
Abstract Crystals of EuPO 4 , EuAsO 4 , and EuSbO 4 were grown by chemical vapor transport. These compounds exhibit complex anions and they crystallize in different structures. The modelling of the chemical transport experiment was carried out with the program TRAGMIN. By means of different spectroscopic methods struc…
Atmospheric normal glow discharge plasma‐enhanced chemical vapor deposition (ANGD‐PECVD) holds great potential for the industrial in‐line continuous growth of vertically oriented graphene (VG) nanosheets. However, conventional single‐pin‐to‐plate electrode arrangement owns the drawback of producing a non‐uniform elect…
The complexation behavior of a bis-strapped porphyrin ligand (1) towards Cd(II) has been investigated by (1)H and (113)Cd NMR spectroscopy with the help of X-ray diffraction structures. The presence of an overhanging carboxylic acid group on each side of the macrocycle is responsible for the instantaneous insertion of…
The syntheses, structures, and magnetic properties are reported of a new Mn8 cluster obtained from the reaction of ferrocene-1,1'-dicarboxylic acid (fdcH2) with [Mn12O12(O2CMe)16(H2O)4] and mononuclear Mn salts under different conditions and limited light exposure. The product was obtained in two forms: [Mn8O4(fdc)6(D…
This Letter designed an extra high reflection filter by using multilayers with a negative k, commonly referred to as gain layers. The gain layer was fabricated by embedding CdS quantum dots in a dielectric layer. Experimental results indicated that the effective k value is around -0.0008. The associated optical and ph…
The aim of the study is to synthesize a thiolated Pluronic copolymer, Pluronic-poly (acrylic acid)-cysteine copolymer, to construct a mixed micelle system with the Pluronic-poly (acrylic acid)-cysteine copolymer and Pluronic L121 (PL121) and to evaluate the potential of these mixed micelles as an oral drug delivery sy…
ZrB2 powders were synthesized by mechanical alloying (MA) of the mixture of elemental Zr and B powders using WC vial and balls. The effect of the initial composition, the milling time on MA and the phase changes during MA were investigated. Well-crystallized ZrB2 powder with micrometer size was received by directly ba…
Electrical conductivity and dielectric properties of silver iodide doped silver ion mixed-former conducting glasses have been studied in this paper. The frequency dependence of conductivity has been analyzed following the random free-energy barrier model. The charge carrier relaxation time and the activation energy fo…
The series of zirconium(IV) and hafnium(IV) phthalocyanine complexes [PcM(FcCOCHCOR)2] (Pc = phthalocyaninato; M = Zr; R = CF3 (1), CH3 (2), C6H5 (3), Fc ((C5H5)Fe(C5H4), 4), as well as M = Hf ; R = CF3 (5), CH3 (6), C6H5 (7), and Fc (8)) were synthesized. A single-crystal X-ray diffraction analysis of the structure o…
We numerically calculated the photonic band structure of a cholesteric blue phase II (BPII) liquid crystal using two models, the tensor order parameter model and the double-twist cylinder (DTC) model. The tensor order parameter model was derived numerically from the Landau-de Gennes theory, whereas the DTC model simpl…
Natural fibre-reinforced composites have attracted great research and economic interests because of their outstanding ‘green’ characteristics compared with glass fibre-reinforced composites. It is very important to understand the processing effect on the natural fibre-reinforced composites mechanical properties becaus…
Sonnenschutz für Nanopartikel: Unbeabsichtigt durch UV-Licht ausgelöste Freisetzung stört bei der photodynamischen Therapie. Das Einschließen von hochkonvertierenden Nanopartikeln, die Photoschalter enthalten, in ein UV-Strahlung abblockendes amphiphiles Polymer unterbindet den Einphotonenprozess und lässt nur die zwe…