Materials Literature
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The codons of D-ANase gene from Alcaligenes A-6 were substituted by the codons abundant in E. coli.,then the D-ANase gene was synthesized by the two-step method based on PCR technology. Synthetic gene and pET-32 a vector were digested with BglⅡ and XhoⅠ,ligated by T4 DNA ligase. The ligation mixture transformed into E…
The aim of this paper was to verify a possible correlation between the pore-size of meso- porous silica nanoparticles (MSNs) and the sizes of gold nanoparticles (AuNPs) obtained by an impreg- nation of gold(III) chloride hydrate solution in the MSNs, followed by a specific thermal treatment. Mesoporous silica nanopart…
External corrosion and stress corrosion cracking(SCC) have been observed in a thin layer electrolyte under disbonded coating shielding cathodic protection(CP).In this work,characteristic and evolution of the thin layer electrolyte environment(potential,pH,etc.) on pipeline steel under disbonded coatings were investiga…
N 作文作为一个例子。NTE 开始温度， NTE 操作温度范围和 NTE 的系数随着减少在一个宽范围显然变化，这被发现微观结构的谷物尺寸水平。为在 NTE 系数的绝对值拓宽 NTE 操作温度范围和减少的机制基于挫败的磁性的相互作用并且磁性的订的 grain-size-dependence 被建议。现在的学习显示 antiperovskite 锰氮化物的 NTE 性质能被微观结构规模的控制定制。
Copolymerized phenolic resin modified bamboo fiber composites(PR-BF) were prepared by a two step process i.e.firstly the bamboo fiber was immersed in an ultrasound irradiated bath of proper water solution of copolymerized phenolic resin and then undergone a heat treatment.The PR-BF composite was characterized by FTIR…
A chemodosimeter toward cyanide based on phenazine disulfonylindole(PDSI)was designed and synthesized.PDSI expressed obvious intramolecular charge transfer(ICT)absorption band at 750nm.After the addition of cyanide,the C=N+double bond was broken and neutralized and this ICT band dramatically decreased for the decreasi…
High-quality graphene coating was directly grown on stainless steel meshes via chemical vapor deposition process, during which the morphology of the stainless steel was transformed rugged. When the graphene-coated stainless steel meshes were applied as current collectors of supercapacitors, the changes of the appearan…
Hierarchical Cu2O/Au/CuO nanostructures have been achieved by water-based green fabrication at a low temperature.Precluding the requirement of the template removal,the generation of hierarchical architecture relied on the catalytic activity of gold nanoparticles attached on the Cu2O nanocubes.Notably,we creatively dev…
The electro-polymerization behavior of aniline in reverse(W/O) microemulsion was investigated. The experiment results show that the cyclic voltammetry polymerization behavior of aniline in W/O microemulsion is different from that in aqueous solution remarkably. With the increase of scan cycle, the oxidation potential…
为催化反应能注射的串联的空 mesoporous nanostructures 的设计新活力进 nanostructures 的发展。在这研究，我们为合成报导一个万用的合作指导模板的涂层方法空并且有改变作文(从 0 ～ 100% 的 ZrO2 内容) 的蛋黄壳 mesoporous 锆钛氧化物 nanospheres，高表面区域(465 m2 ? 慣慴祬楴? 敲捡潴吗？
Fluorine-doped hydroxyapatite(FHA) and calcium deficient hydroxyapatite(CDHA) were coated on the surface biodegradable magnesium alloy using electrochemical deposition(ED) technique. Coating characterization was investigated X-ray diffraction(XRD), Fourier-transformed infrared spectroscopy(FTIR), transmission electron…
Surface Acoustic Wave(SAW)devices on flexible polyimide substrates were developed. The ZnO piezoelectric layers were deposited on a flexible polyimide substrate by low temperature reactive magnetron sputtering,then the layers were characterized by the X-ray Diffraction(XRD),Sanning Electron Microscope(SEM),and the Ato…
Brine resource is rich in China,but its exploitation has been a problem.Hypersaline brine will corrode equipment and materials seriously during the brine exploitation and transportation.The corrosion problem can cause great
The existing concepts of the mechanisms of forming fragmented structures under the conditions of severe plastic deformation of crystalline solids are analytically reviewed. The translational and rotational plasticity modes that develop at micro and mesoscopic structural levels, respectively, are sequentially taken int…
抗体指向的交货是有效策略在焦点的区域改进 nanoscale 成像代理人的诊断成像结果。包含 superparamagnetic 氧化铁的双指向微粒 poly 从 amphiphilic 块共聚物被准备(乙烯乙二醇) 有不同指向的 -poly(-caprolactone)(PEG-b-PCL ) 结合到木钉块的远侧的目的 ligands cRGD 和 scFv-ErbB 单身者链抗体。乳癌动物模特儿被下的注射建立 BT474 房间进 BALB/c-nu 雌裸体老鼠然后采用了估计双 ligand 的潜力在 1.5 T 临床的 MRI 扫描仪上作为一个新奇 MRI 对比代理人指向了磁性的微粒。在收到双 ligand 的动物的肿瘤的 T…
The most important interface-related quantities determined by band alignment are the barrier heights for charge trans- port, given by the Fermi level position at the interface. Taking Pb（Zr, Ti）O3 （PZT） as a typical ferroelectric material and applying X-ray photoelectron spectroscopy （XPS）, we briefly review the inter…
To counteract the hysteresis introduced by a harmonic drive and to improve the precision of a Double Gimbal Magnetically Suspended Control Moment Gyroscope(DGMSCMG)gimbal system,a modeling method of hysteresis characteristics of the harmonic drive was proposed.Firtly,the firstorder reversal curve method was used to ca…
The double perovskite oxide barium erbium niobate,Ba2ErNbO6(BEN) was synthesized by solid state reaction technique.Rietveld refinement of the X-ray diffraction pattern of the sample showed cubic(Fm3m) phase at room temperature.Fourier transform infrared spectrum showed two primary phonon modes of the sample at around…
In this paper, phase composition of the Mn+1-AXnphases by self-propagating high-temperature synthesis(SHS) was determined using Ti, Cr, Al, and carbon black as raw materials. And, phase composition and microstructures of the Mn+1AXnphases-contained bulk by SHS with the pseudo-hot isostatic pressing(SHS/PHIP) were inve…
Three-arm poly(propylene oxide)(PPO) was used as a macroinitiator for the ring-opening polymerization(ROP) of D-lactide to obtain three-arm poly(propylene oxide)-block-poly(D-lactic acid)(PPOPDLA).PPO-PDLA copolymer was then reacted with stannous octoate [Sn(Oct)2]to obtain Sn(Oct) endcapped PPO-PDLA[PPO-PDLA-Sn(Oct)]…