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。
Corn Silk is one good and cheap drug ,it has light and sweet tastes and tepidity nature.It has many kinds of chemical element,it can hypoglycemic,antihypertensive,hypolipidemic,antibacterial,discharge bile,hemostasis,anti-tumor,and enhance immunity,and so on.At present,it can therapy lots of clinic diseases. We synthe…
Polyvinylpyrrolidone(PVP)-coated monodispersed core-shell Fe3O4/Au magnetic-optic multifunctional nanoparticles were synthesized in the presence of PVP polymer as the surfactant by using a modified polyol process.The nanoparticles were investigated by means of TEM,XRD,VSM and UV-Vis.The formation of the core shell nan…
Polyimide(PI) is widely used as alignment layers in liquid crystal display industry, owing to their many excellent properties, such as heat resistance, dielectric properties, mechanical properties, chemical resistance, film-forming ability. One of the important parameters of alignment layers is pretilt angles of liqui…
By the methods of limited oxygen index(LOI)and dynamic combustion,the synergistic flame-retarding property and mechanism of a novel silicon-containing flame retardant(SFR-H)and inorganic hydroxide were studied.And the mechanism of the synergistic flame-retardant was also studied by analyzing the structure and its comp…
The research was founded on the conductive silicon rubber used in the tactile sensor,studying the influence of adding nano-Al2O3 materials on the electrical performances.Analyses were made on the phenomenon produced by filling nano-Al2O3with different contents through experiments,researching the micro and macro mechan…
In this work,a highly selective and sensitive dihydrogen phosphate membrane sensor based on cobalt modified carbon fiber microelectrode is reported.On optimal conditions,the sensor shows a linear dynamic range between 1.0×10-6 and 1.0×10-3 mol·L-1,with a nice Nernstian behavior at pH 4.0.The detection limit of the ele…
This paper concentrates on the Raman optical properties of N-In codoped p-type ZnO thin films grown by ultrasonic spray pyrolysis.We have studied the room temperature of Raman spectra of p-type ZnO thin films with different hole densities combining the Lorentzian mode and the coupled LO phonon-plasmon mode(CPPM) theor…
Microlayered conductive carbon black filled polypropylene/polypropylene(PPCB/PP) composites were prepared via the microlayered coextrusion system designed in our lab.SEM and TGA results show that the alternating stratified structure is formed and the carbon black particles are selectively located in PPCB layers,formin…
OBJECTIVE To determine the partition of hydroxycamptothecin in the phases of liposome and water and to evaluate the influence on the partition coefficients and binding Gibbs energy between the molecules of drug and water. METHODS Equilibrium dialysis technique was used to study the liposome/water partition coefficient…
Star-shaped poly(D,L-lactide)(3)was synthesized from D,L-lactide(1)using tin octoate[Sn(Oct)2] as the catalyst and pentaerythritol(2)as the core by melt polymerization.The structure was confirmed by 1H NMR and GPC.The influence of polymerization time,reaction temperature,Sn(Oct)2 amount and n(2)∶n(1)on the viscosity-a…
A new modified starch–porous starch can be produced by means of hydrolyzing raw starch with enzyme which can act on it at the temperature lower than that needed for starch gelatinization. It can be used as the core of fine capsules,the replacement of fat,and adsorptive material,for absorbing different functional subst…
With cheap D,L-Lactic acid(D,L-LA) and valine(Val) as the stanting materials,and SnO as the catalyst,a novel biomaterial,poly(lactic acid-co-valine)co-Val),was directly synthesized via melt copolycondensation.The copolymer was characterized with viscosity measurements,FTIR,1H NMR,DSC,XRD and GPC.The effects of feed mo…
New Gemini phosphate amphoteric surfactant was synthesized using dodecyl dimethyltriamine epichlorohydrin and sodium dihydrogen phosphate. The optimum processing condition and optimum technological parameters were obtained. Finally the application property of the product was studied.
The CS nanoparticles were prepared by ionotropic gelation of CS with tripolyphosphate(TPP)in different concentrations.The influences on the preparation of CS nanoparticles,including the concentrations of CS and TPP solution,the CS ∶TPP weight ratio and the pH in this reaction system were observed.When the concentratio…
Objective:To prepare stealth liposome to carry paclitaxel(PSP) and to evaluate its acute toxicity,anticancer effect and stability.Methods:PSP was prepared, in which oleic acid, cholesterol and PEG-DSPE(polylene glycol derivative of distearoylphos-phatidyl ethanolamine, mean molecular weight of PEG:2000) were included.…
In order to enhance the anti-corrosive performance of hot-rolled wire rod and get rid of corrosion associated with transportation and stocking, the steel scales on the wire rods of high-carbon steel, medium carbon steel and mild steel were investigated by using infrared absorption spectrometry, scanning electron micro…
Multi-layered Ti/TiN films,single layer TiN films and gradient TiN films were deposited on uranium substrates by arc ion plating.The anodic polarization experiments in 50 μg/g Cl- solution indicate that E corr of the sample at a pulse bias of ?800 V increases to about 714 mV,with an I corr decrease of about two orders…
The ultrasonic wave cleaning technique can be used to clean objects due to the cavitate effect generated by ultrasonic generator and energy converter,which effectively solves the problem of cleaning of machine joints and inner faces of tubes of chemical tools.We developed a full-automatic ultrasonic cleaner based on b…
A Maillard reaction was carried out between 1 g of polylysine (PL) produced through fermentation of Streptomyces albus and 9 g of dextran with 40 kD molecular weight. The covalent attachment of PL to dextran was confirmed by SDS-PAGE and the absorbance measurement of Maillard reaction system at 420 nm wavelength was c…
Silica sol was prepared using TEOS as the precursor and HNO3 as the catalyst by sol-gel process.The effects of the ratio of the reactants and reaction conditions on the particle size and particle size distribution of SiO2 sols were inspected during the sol-gel processing in this paper.The results showed that with the…