Báo cáo hóa học: " Quasi-radial growth of metal tube on si nanowires template" pptx

... small tube diameters. Conclusions In conclusion, Si nanowires have been employed as a template for the fabrication o f noble metal tube by the electrochemical method. The growth of metal on Si nanowires ... conducted to reveal the growth process of metal tube, showing that the metal tube grows quasi-radially on the wall of Si nanowire. The quasi-r adial...

Ngày tải lên: 21/06/2014, 05:20

... helpful to create ver- satile one-dimensional Si nanostructures. Conclusion The bulk of previous studies have reported the growth of one-dimensional Si nanostructures (i.e., nanowires and NRs) via the ... catalyst. The triangular confi gurations of the saw-like edg es ar e due to the nucleation of two-dimensional islands during the epitaxial growth on the Si (111) surfac...

Ngày tải lên: 21/06/2014, 01:20

... thickness gold are ‘XRD amorphous’. Conclusions In summary, experiments addressing a possible cata- lytic effect of gold on ZnO growth by r.f. magnetron sputtering under UHV conditions are presented. A moderate ... comparison of possible ZnO morphology differences on a subsequent scanning electron microscopy inspection. The pattern was defined by electron lithography: a 200-nm PMMA-...

Ngày tải lên: 21/06/2014, 02:20

... processed on a GaN -on- silicon substrate by a combination of electron beam (EB) lithography, fast atom beam (FAB) etching of GaN, and deep reactive ion etching (DRIE) of silicon. The patterned growth ... fabricated on a GaN -on- silicon substrate by a combination of E B litho- graphy, FAB etching of GaN and DRIE of silicon [20]. Figure 2 illustrates scanning electron micro...

Ngày tải lên: 21/06/2014, 05:20

... electrodeposition. a ions reduction on the Au electrode and random nucleation, b and c formation of several nanocrystals and growth in size, d preferred growth of a single crystal along a preferential ... Nanoscale Res Lett (2010) 5:1057–1062 123 concentration of metal ions to recover. This deposition mode favors the growth of existing nuclei instead of for- mation of ne...

Ngày tải lên: 21/06/2014, 18:20

... leads to the formation of various textures. By modification of reaction conditions and design of appro- priate reaction route, it may be possible to obtain desired morphology of carbon materials. Herein, ... 5). Conclusions We have demonstrated a convenient chemical route to synthesize carbon hollow spheres, hollow capsules and solid spheres by Mg-reduction of hexachlorobutadiene. Th...

Ngày tải lên: 22/06/2014, 00:20

... same time, the lateral growth of ZnO is greatly limited while the growth along [0001] direction dominates the whole growth process considering the different growth rate of various growth facets which ... vapor deposition [16], metal organic chemical vapor deposition (MOCVD) [17, 18], and solution-based methods have been used [19]. Among the numerous researches on the synthes...

Ngày tải lên: 22/06/2014, 01:20

... Tsutsumi Y, Ozono R, Masaki H, Mori Y, Iba O, Tateishi E, et al.: Implantation of bone marrow mononuclear cells into ischemic myocardium enhances collateral perfusion and regional function via side supply ... culture-modified mononuclear cells confer vascular protection after arterial injury. Circulation 2003, 108:1520-1526. 2. Gulati R, Jevremovic D, Witt TA, Kleppe LS, Vile RG, Lerman A,...

Ngày tải lên: 18/06/2014, 15:20

... greater than the cut-off of the control mean plus 3 SD were color-coded to signify the relative number of standard deviations above these cut-off values. Analysis of con- trols revealed that 5 of the normal ... severe sepsis, conditions characterized by intensive immune activation leading to multiple organ dysfunction. Methods: Using Luciferase Immunoprecipitation Systems (LIPS), a co...

Ngày tải lên: 18/06/2014, 16:20

... cognition, through a * Correspondence: chou@uoregon.edu Motion Analysis Laboratory, Department of Human Physiology, University of Oregon, 97403 Eugene, Oregon, USA Catena et al. Journal of NeuroEngineering ... current informationontheprioritizationof attention following concussions is lacking. This informa- tion would be helpful in understanding the interaction between cognition and mot...

Ngày tải lên: 19/06/2014, 08:20