Báo cáo hóa học: " Preparation and characterization of spindle-like Fe3O4 mesoporous nanoparticles" pot

... participated in the design of the study and coordination of the work. All authors contributed to interpretation of the results and drafting of the manuscript and they read and approved the final ... the analysis of the FTIR spectra. AJ participated in the FTIR measurements and the analysis of the spectra and carried out the analysis of the water contact angles on nan...

Ngày tải lên: 21/06/2014, 01:20

... manufacturing of carbon/water nanofluids. Introduction As industrial and technological products demand higher standards of function and capacity, the problem of heat dissipation from electrical ... viscos- ity of c arbon/wat er nanofluid is much higher than that of the water. When the carbon/wat er nanofluid was applied to heat exchange, pressure drop of pipeline and energy...

Ngày tải lên: 21/06/2014, 04:20

... 6:89 http://www.nanoscalereslett.com/content/6/1/89 Page 5 of 9 NANO EXPRESS Open Access Preparation and characterization of spindle-like Fe 3 O 4 mesoporous nanoparticles Shaofeng Zhang 1,2 , Wei Wu 1,2 , Xiangheng ... materials preparation, data analysis and drafted the manuscript. WW, XX and JZ participated in the sample characterization. FR conceived and co-wrote the...

Ngày tải lên: 21/06/2014, 06:20

... solutions and then dried in vacuum. Synthesis of Fe 3 O 4 Nanoparticles Fe 3 O 4 nanoparticles were synthesized as reported by Massart et al. [28]. A mixture of 5.406 g of FeCl 3 Á6H 2 O and 2.780 g of ... the surface of Fe 3 O 4 nanoparticles, such as the ratio of water to surfactant (R), the amount of ammonia, and the amount of tetraethoxysi- lane, on the photoluminesc...

Ngày tải lên: 21/06/2014, 20:20

... (&) Á L. Deng Á G. Chen Key Laboratory of Biorheological Science and Technology, Ministry of Education, and Institute of Biochemistry and Biophysics, College of Bioengineering, Chongqing University, 400044 ... different surfaces, and the thick- ness of the MHA film and the protein monolayer was estimated to be 1.51 and 5.53 nm, respectively. The GI- XRD 2h degrees of...

Ngày tải lên: 22/06/2014, 00:20

... photomicrographs of fresh and modified fly ash. (A and B) SEM of fresh fly ash at 1,000 and 2,500 times magnification, (C and D) SEM of ball milled fly ash for 20 h at 1,000 and 3,000 times magnification, (E and ... SEM of ball milled fly ash for 40 h at 1,000 and 3,000 times magnification, (G and H) SEM of ball milled fly ash for 60 h at 1,000 and 3,000 times magnification...

Ngày tải lên: 22/06/2014, 18:20

... 10% Domains of E9 and locations of mutations responsible for drug resistanceFigure 5 Domains of E9 and locations of mutations responsible for drug resistance. The location of the putative exonuclease and ... streptomycin and non-essential amino acids. Vero Cells were obtained from ATCC and were maintained in MEM with Earl's salts and the addition of 10% FBS and...

Ngày tải lên: 20/06/2014, 01:20

... thankful to Professor Les Copeland (Faculty of Agriculture, Food and Natural Resources - The University of Sydney, New South Wales, Australia) and Professor Kaeko Kamei (Department of Biomolecular ... subunits Aa,Bb and g are 95, 56, and 51.5 kDa (UniProt), respectively. The time of hydrolysis is plotted at the top of the figures. Table 3 The values of pI and molecular w...

Ngày tải lên: 20/06/2014, 23:20

... solubility of l-aspartic acid and glycine in chloroform. Only about 25% of the stearic acid chains could be exchanged by Boc-glycine (Boc-Gly). But ligand exchange with the bidentate ligands mercaptosuccinic ... 1,220 and 1, 066 cm -1 . Procedure for surface modification of nanoparticles A solution of carboxylic acid (150 mg) in 5 mL chloroform was added to a reaction vesse l cont...

Ngày tải lên: 21/06/2014, 03:20

... evolution of bacteria and moulds, and then very early recruited in the metazo- ans. Here we report the expression and purification of recombinant geodin and its thermodynamic and spect- roscopic characterization, ... of thermodynamic stability, are of about 80 kJÆmol )1 for human-c S and spherulin 3a, and of 41 and 45 kJÆmol )1 for geodin and protein S, respectivel...

Ngày tải lên: 30/03/2014, 15:20