Materials Literature
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Onion-like carbon (OLC) was synthesized by annealing nanodiamond in low vacuum (1 Pa) at the temperatures from 500 to 11400°C. The high-resolution transmission electron microscope images, X-ray diffraction patterns and Raman spectra showed that, when the annealing temperatures were lower than 900°C, there was no OLC f…
To explore the antimicrobial activity of microcapsules encapsulated with mixture of herbs like neem, tulsi and turmeric, and its application on cellulosic fabric in the form of microcapsules. The microcapsules were prepared from the mixture of herbs by plain diffusion method, a natural encapsulation technique with yea…
The repeatability of the adsorption and removal of fibrinogen and fetal bovine serum on hydroxyapatite (HAp) nanocrystal sensors was investigated by Fourier transform infrared (FTIR) spectroscopy and quartz crystal microbalance with dissipation (QCM-D) monitoring technique. The HAp nanocrystals were coated on a gold-c…
We report the thermal conductivities of Ge1Sb4Te7 and nitrogen-doped Ge1Sb4Te7 thin films at temperatures ranging from 300 to 520 K using the 3ω method. Thermal conductivity of Ge1Sb4Te7 increases abruptly during the transition from the amorphous to crystalline phase. Nitrogen doping effectively suppresses the crystal…
Three new scandium silicates with framework structures made of octahedra and tetrahedra, KSrScSi2O7, NaBaScSi2O7 and RbBaScSi3O9, were obtained through a high-temperature flux-growth technique. Their crystal structures have been determined from single-crystal intensity data (Mo K α radiation, CCD area detector, 293 K;…
Due to the broad spectrum and versatility of electromagnetics, progress and new discoveries in this field have not made a uniform history. The same and similar phenomena are reinvented by researchers whose interests center on different frequency ranges. Surface waves make an illustrating example. Starting from the wor…
Electron−phonon (e-ph) coupling dynamics in Au nanorods are studied with femtosecond transient depolarization experiments. Au nanorods exhibit strongly anisotropic e-ph coupling dynamics. It is considered to arise from different weights of pump energy assigned to two polarization directions because of the anisotropy o…
A deep understanding of the recombination dynamics of ZnO nanowires (NWs) is a natural step for a precise design of on-demand nanostructures based on this material system. In this work we investigate the influence of finite-size on the recombination dynamics of the neutral bound exciton around 3.365 eV for ZnO NWs wit…
This article features solvent-stabilized nanoparticles of photoconductive metal phthalocyanines (MPcs) with small particle sizes and narrow size distributions, which are tractable building blocks for photoelectric devices. The preparation and stabilization mechanism of 1,2-dichloroethane (DCE)-stabilized oxovanadium p…
In this paper, the research progress of compounding method using pristine clay and commercialised rubber latex to produce rubber/layered silicate nanocomposites, namely, latex compounding method, is summarised. The properties of a series of rubber/clay nanocomposites prepared by latex compounding method are systematic…
Based on the experiments of laser penetration brazing for Mg alloy and steel dissimilar materials, the microstructure and interface characteristics of butt joints were investigated by optical microscopy, scanning electron microscope with energy dispersive spectrometer and tensile testing. It was found that the strong…
The ordering of octahedral Al 3+ , Fe 3+ , and Mg 2+ cations in dioctahedral 2:1 phyllosilicates was studied theoretically. Quantum mechanical calculations based on density functional theory (DFT) were performed for optimizing different cation distributions along the octahedral sheet. Three systems of two species (Al…
Abstract Nanoindentation is a suitable tool for characterizing the local mechanical properties of shape memory alloys (SMA) and to study their pseudoelastic behavior. There is a special interest in indenting with different indenter tips (as not all tips are associated with strain states that predominantly induce the m…
The paper addresses the temperature and electric field dependence on the conductivity of the conductive armor and stress grading tapes on form-wound motor coils. The temperature and electric field dependence is measured in the laboratory, and the nonlinear dependency is used in transient FEM simulations of the potenti…
Dendrimers are global macromolecules with promising biomedical application. In order to investigate their blood compatibility, different generations of polyamidoamine (PAMAM) dendrimers terminated with different types of surface functional groups were incubated with red blood cells (RBC) for time course of haemolysis…
Research Article| February 01, 2010 Influences of alkalinity and pCO2 on CaCO3 nucleation from estimated Cretaceous composition seawater representative of "calcite seas" Janie Lee; Janie Lee * Department of Oceanography, Texas A&M University, College Station, Texas 77843, USA *E-mail: jlee@ocean.tamu.edu. Search for o…
The results have been considered of the research on the possibility of cubic boron nitride (cBN) and cubic carbon nitride (c-C 3 N 4 ) dynamic synthesis in hyperhigh-speed pulse jet of boron-carbon electric-discharge plasma, which flows into the space with a nitrogen medium. The source of the plasma is a high-current…
Ab initio study of a carbon nanotube-SiO2 interface reveals that the energetic preference for the nanotube to bind on particular sites on the O-terminated surface differs substantially from that on the Si-terminated surface. Besides, the chemical reactivity at the interface leads to electron-transfer from the nanotube…
Uniformly and vertically well-aligned ZnO nanorods were fabricated in-situ and ex-situ on ZnO films using a catalyst-free metal-organic chemical vapor process. Microstructural properties of the initial growth of ZnO nanorods on ZnO films with different surface roughnesses were investigated. We observed that the ZnO na…
I show that the growth of Trichodesmium, the primary diazotrophic phytoplankton in tropical and subtropical oceans, can be limited by Ni availability in both trace metal–defined culture media and natural seawater when the supply of Fe and P is sufficient. I further show that the increase of Ni concentrations elevates…