Báo cáo hóa học: " In situ Precursor-Template Route to Semi-Ordered NaNbO3 Nanobelt Arrays" pptx

... Access In situ Precursor-Template Route to Semi-Ordered NaNbO 3 Nanobelt Arrays Junshu Wu, Dongfeng Xue * Abstract We exploited a precursor-template route to chemically synthesize NaNbO 3 nanobelt ... precursor was calcined in air to yield single-crystalline monoclinic NaNbO 3 nanobelt arrays. The proposed scheme for NaNbO 3 nanobelt formation starting from Nb me...

Ngày tải lên: 21/06/2014, 08:20

... leads to a reduction in the (113) intensity and the (119) facet intensity (blue line in Fig. 1g) starts to rise as the multifaceted ‘‘U’’ stripes are transformed to ‘‘V’’-shaped stripes. Termination ... Continuation of buffer growth, results in the appearance of faint additional diffraction streaks inclined by 25° to the surface normal, as indicated by the dashed lines in the...

Ngày tải lên: 21/06/2014, 08:20

... result from TEM. Principle of In Situ Mineralization of Magnetite in Chitosan Hydrogel The principle of magnetite mineralization in chitosan hydrogel was similar to that of mineralization in magnetic bacteria. ... stirring to obtain homogeneous solution, in which the molar ratio of aldehyde/amino groups was equal to 1:5. The solution was held until chitosan hydrogel formed c...

Ngày tải lên: 21/06/2014, 20:20

... structure. In this research, a weak acid-modified water -in- oil microemulsion is devel- oped to encapsulate the bFGF within MSNs in situ. The in vitro releasing kinetics of bFGF from MSNs has been investigated ... 1 to day 5 were the HUVEC cell culture media without adding MSNs. The cell viability was obtained by using the MultiTox-Fluor Multiplex Cytotoxicity Assay. According to...

Ngày tải lên: 22/06/2014, 00:20

... mixed in different volumes to create the desired Au:Pt mole ratio in the final solution, ranging from 1:0,1:0.25, 1:0.75 to 1:1. After incubating the surface for 8 h, rinsing with water and drying ... results points to the possible core–shell structure formation during in situ syn- thesis of Au–Pt NPs on the surface from the observed increase in nanoparticle size going from pur...

Ngày tải lên: 22/06/2014, 00:20

... prepared by hot-pressing the pellets between two aluminum plates and then quenching them in icy water, was mostly a-phase, indicating that the shear force during electrospinning might favor the ... profound shear-thinning behavior as the / increased. Percolation threshold represents a starting point of a three-dimensional MWNT network in the matrix, and can be determined from the starting...

Ngày tải lên: 22/06/2014, 01:20

... is an exchange- able interlayer anion [2]. In LDH, the hydroxide sheets stacked with strong interaction due to high intergallery charge density [9]. Pure inorganic LDH is incompatible with the ... nanoparticles in EPDM matrix. Conclusions The EPDM/MgAl-LDH nanocomposites were success- fully prepared by a solution blending route using dodecyl sulfate modified LDH in toluene. XRD patte...

Ngày tải lên: 22/06/2014, 22:20

... putida strain growing on 2-butyne- dioate or propynoate as sole carbon source. To investigate the acetylene bond biodegradation, we used in situ proton nuclear magnetic resonance ( 1 H-NMR) in water ... [11–15]. While, except in propynoate, the triple bond in a-alkynoates do not carry a proton, the substrates are ÔinvisibleÕ in 1 H-NMR. The incorporation of protons from the solv...

Ngày tải lên: 08/03/2014, 08:20

... one of the mediators of tolerance induction. In peripheral lymphoid organs immature DCs are incapa- ble of mobilizing CTL responses and have been reported to induce tolerance. In contrast, if ... activators of innate immune responses, inducing DCs maturation and inflammatory cytokine secretion by innate immune cells and as a conse- quence they promote antitumor immune responses when coa...

Ngày tải lên: 18/06/2014, 15:20

... protein responsible for binding to and activat- ing the VEGFRs that are known to trigger angiogenesis. We previously showed that QK can bind to the VEGFRs, initi- ate VEGF-induced signaling cascades ... also known as kinase-insert domain-containing receptor (KDR) [2]. In animal models of chronic ischemia, manoeuvres that increase VEGF levels by intramuscular injection or vascu- lar in...

Ngày tải lên: 18/06/2014, 15:20