Báo cáo hóa học: " Conductance of Graphene Nanoribbon Junctions and the Tight Binding Model" pptx

... considered, the con- ductance of the conduction and valence bands is always symmetrical as determined by the formulation of the energy dispersion relation, equation 1. In the case of graphene nanoribbons, ... graphene nanoribbons and conductance of nanoribbons and graphene metal/semiconductor junctions using a NEGF f ormalism based on the tight binding...

Ngày tải lên: 21/06/2014, 11:20

... geometrical shapes and express the free elastic energy of the membrane in terms of the length of the LNT, its radiu s, the radius of the junction and the tension of the membrane. Variation of the energy ... the second case (Figure 1B), the lipid tube is pulled to the inside of the vesicle and is directly fixed to the tip of the micropip- ett...

Ngày tải lên: 21/06/2014, 03:20

... cap- ability of the microscope was used to perform the experiments of nanoscale patterning on the surfaces of graphene. Results and discussion UV-Vis spectral response The successful synthesis of graphene ... forces. The thick edges of the sheets therein (inset of Figure 3b) reveal that t he layers are atop e ach other with a thickness of about 0.45 µm. HR-TEM...

Ngày tải lên: 21/06/2014, 03:20

... liver, spleen, and kidney can tolerate and maintain their normal function, at higher dose, lot of GO in liver, spleen, and kidney can damage the balance and badly affect the function of these organs, ... effects of graphene oxides on human fibroblast cells and mice with the aim of investigating graphene oxides’ biocompatibility. The graphene oxides were prepare...

Ngày tải lên: 21/06/2014, 08:20

... With the reduction of GO, the atomic ratio of carbon to oxygen increases and the bandgap of GO decreases; meanwhile, the valence band of GO shifts upward. With the increased conductivity of GO, ... reduction, the absorption bands of both C-O and O-H are considerably decreased. The characteristic band of C=O (carboxyl) was not detected by FT-IR. The result...

Ngày tải lên: 21/06/2014, 17:20

... a manner of Equation (21) in the studies [20, 39]. Other authors [21,24,34] took into account several Landau levels, and the others [35–38] performed full summation in the framework of the random ... the same as these of electron Landau levels (3), but have an opposite sign. Hamiltonian of electron-hole pair without taking into account Landau level mixing is just the sum...

Ngày tải lên: 22/06/2014, 00:20

... memory and naïve B cells as defined by the presence or absence of CD27 expression. We studied the effect of CP-870,893 on B cell activation and B cell stimulation of T cells, and we analyzed the effects ... expres- sion. CD40-ligand (CD40L), also known as CD154, is the chief ligand for CD40 and is expressed primarily by acti- vated T cells and platelets [10,11]. The...

Ngày tải lên: 18/06/2014, 15:20

... cutpoint RU). For positive samples, the log of the titer was reported. The minimum required dilution was 1:25 and the limit of detection was 1.40 (the log of 25). Therefore, negative samples were ... day 134, 36, and 92 for ani- mals 1, 2, and 3 respectively. Thus, among the three Ab- 01-dosed animals, animal 2 had the shortest t 1/2 and the fastest onset and t...

Ngày tải lên: 18/06/2014, 16:20

... between the modified DNA and the enzyme, which is irreversibly inactivated and trapped into the DNA [73,74]. The resulting cellular depletion of DNMT activity leads to the passive demethylation of the neosynthesized ... requires the function of specific enzymes, such as DNMT and HDAC. The pharmacologic and/ or genetic inactivation of DNMT and/ or HDAC erases th...

Ngày tải lên: 18/06/2014, 16:20

... with b2-microglobulin above the normal range. A decrease in serum Ig levels during the course of the disease is a common f eature of CLL and correlates with the disease stage and the occurrence of infections ... amount of newly produced B and T lymphocytes [8,9]. Here, we applied the n ew assay, together with the flow cytometry, to quantify the num- ber of rece...

Ngày tải lên: 18/06/2014, 16:20