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。
We describe a wide-field preclinical imaging system optimized for time-gated detection of quantum dot fluorescence emission. As compared to continuous wave measurements, image contrast was substantially improved by suppression of short-lifetime background autofluorescence. Real-time (8 frames/s) biological imaging of…
86 (2009) 17006 Please visit the new website www.epljournal.org Europhysics Letters (EPL) has a new online home at www.epljournal.org Take a look for the latest journal news and information on: • reading the latest articles, free! • receiving free e-mail alerts • submitting your work to EPL
Thai Bombi mori silk fibers were degummed with a papain enzyme derived from local papyrus latex and compared with a traditional alkali/soap method. The efficiency of degumming processes was assessed using percent weight loss, tensile strength and scanning electron microscopy (SEM) measurements, color staining testing…
Cellulose is the most abundant organic compound with the formula (C6H10O5)n. On our globe, approximately 1015 Kg/yr is synthesized and degraded and is found in plenty in nature in the form of cotton, hemp, jute, flax etc. A good percentage of wood also consists of cellulose. Waste management is one of the biggest prob…
Microfibrillar cellulose water suspensions were tested in dynamic rotational rheometers using planar and cylindrical geometries. Within the sample sets, the results showed a clear correlation to measuring conditions, in particular to the geometry gap. This is mainly due to the boundaries of the measuring geometry affe…
The rational design of peptides that fold to form discrete nanoscale objects, and/ or self-assemble into nanostructured materials is an exciting challenge. Such efforts test and extend our understanding of sequence-to-structure relationships in proteins, and potentially provide materials for applications in bionanotec…
Indium oxyhydroxide (InOOH) 1-D nanostructures have been synthesized utilizing the hexamethylene diamine (HMDA)-assisted hydrolysis of In3+ cation method in the solvent poly(ethylene glycol 400) (PEG-400). It was found that the amount of distilled water and the solvent type were two key factors for the synthesis of hi…
The observation that oligo(ethylene glycol) (OEG)-terminated monolayers remained highly protein-resistant for a month at 37 degrees C in PBS buffer while they degraded faster in air can be rationalized by a proposed mechanism formulated from a model study using the first internal hydroperoxide of OEG.
In this work we present a detailed investigation of the Raman properties of a dithienylethene photoswitch interacting with a small gold cluster (Au(19)(+)) using time-dependent density functional theory (TD-DFT). The enhancement mechanism (CHEM) due to the molecule-surface chemical coupling in surface-enhanced Raman s…
Abstract; Polyhydroxybutyrate (PHA) synthesis was based on pure culture of Cupriavidus necator DSMZ 545. Due to the high production cost of PHAs, the use of cheaper and available carbon sources was considered. The aim of this research was to investigate the impact of sugarcane molasses as a low cost substrate and acet…
The present paper reports an ac impedance study of the hydrogen evolution reaction (HER) at nickel-coated carbon fiber (NiCCF) materials. The HER was examined in 0.5 M and 0.1 M NaOH solutions for selected NiCCF composites (and comparatively for Ni wires) that were produced by electro (or electroless) deposition of a…
Erbium organic complexes are receiving increasing attention in view of their application in polymeric telecommunication devices, but their use is limited by small emission quantum yield. Non-radiative deactivation of near IR (NIR) transition in Er3+ organic complexes is discussed on the basis of the electronic–vibrati…
This work presents electrochemical formation of Mg-Li-Ca alloys via codeposition of Mg, Li and Ca on a molybdenum electrode in KCl-LiCl-MgCl(2)-CaCl(2) melts at 943 K. Cyclic voltammograms (CVs) showed that the underpotential deposition (UPD) of calcium on pre-deposited magnesium leads to the formation of a liquid Mg-…
Intricately patterned biosilica obtained from the shell of unicellular algae called diatoms serve as novel templates for fabrication of optoelectronic nanostructures. In this study, the surface of diatom frustules that possessed hierarchical architecture ordered at the micro and nanoscale was coated with a nanostructu…
Neutral organometallic cyclic tri- and tetra-nuclear half-sandwich iridium complexes and , connected with pyridine-4-thiolato ligands, were synthesized and characterized by X-ray crystallography.
A hybrid polymer as the precursor for TiO2/SiO2 composite fibers was prepared by blending polycarbosilane (PCS) and tetrabutyl titanate, named as PCST, which contains unreacted organic tetrabutyl titanate compound. The PCST was characterized by FT-IR, TGA and NMR (1H, 13C and 29Si). The results showed that the PCST co…
By polymerization at 80 degrees C and crystal growth at 0 degrees C, highly oriented polyaniline flake and fiber arrays were self-assembled without any templates or surfactants.
Two-dimensional phase field simulations of ferroelectric nanoparticles with different long-range (LR)-electrostatic and -elastic interactions and different domain wall energy densities are conducted based on the time-dependent Ginzburg–Landau equation. The phase field simulations exhibit vortex patterns of polarizatio…
A simple "one-pot" method utilizing a graphitic carbon source containing poly(ethylene oxide-b-acrylonitrile) diblock copolymer as a structure directing agent was used to synthesize carbon-crystalline titania composites as well as crystalline mesoporous titania materials after oxidative carbon removal.
The characteristics of phase transformation in nanocrystalline alloys were studied both theoretically and experimentally from the viewpoint of thermodynamics. With a developed thermodynamic model, the dependence of phase stability and phase transformation tendency on the temperature and the nanograin size were calcula…