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Crystal structure was characterized by XRD.
The XRD peaks confirm the samples forming the delafossite structure phase.
This result confirms that the Cu0.95Pt0.05Fe0.97Sn0.03O2 sample forms phase of the delafossite of hexagonal structure (space group: R-m).
The XRD results reveal the samples forming delafossite structure relating to the peak of CuFeO2-based.
Cox, Transition metal oxides an introduction to their electrical structure and properties, Clarendon Press, Oxford, (1995)

Molecular Regulatory Network Involved in Biofilm Structure Development by Acidithiobacillus thiooxidans Includes Pel Exopolysaccharide Machinery Mauricio Diaza and Nicolas Guilianib Department of Biology, Faculty of Sciences, University of Chile, Santiago, Chile.
Intracellular levels of cyclic diguanylic acid (c-di-GMP) control biofilm formation in bacterial species through its binding to specific c-di-GMP effectors which vary in nature, function, structure and c-di-GMP binding site have been described [3-5].
In the gram-negative bacteria species Pseudomonas aeruginosa, Pel has been involved in cell aggregation and maintenance of the biofilm structure [10].
Nevertheless, further studies have to be performed to: i) understand what kind of biological and/or physical advantages Pel provides for biofilm formation by sulfur-oxidizing Acidithiobacillus compared to iron- and sulfur/iron-oxidizers, ii) decipher the molecular mechanisms involved in the regulation of Pel biosynthesis and iii) determine if Pel interacts with other exopolysacharide such as cellulose and/or extracellular structure such as flagellar apparatus.
Schippers, (Bio) chemistry of bacterial leaching - direct vs. indirect bioleaching, Hydrometallurgy 59 (2001) 159-175

Effect of Stabilizing Agent of Sodium Citrate and Polyethylene Glycol on Structure of Fe3O4 Nanoparticles Roto Rotoa*, Aqidatul Izzab, Eko S.
Kunartic and Suherman Suhermand Department of Chemistry, Faculty of Mathematics and Natural Sciences Universitas Gadjah Mada Yogyakarta Indonesia aroto05@ugm.ac.id, baqizza96@gmail.com, ceko_kunarti@ugm.ac.id, dsuherman.mipa@ugm.ac.id Keywords: Magnetite nanoparticles, sodium citrate, polyethylene glycol Abstract.
Six characteristic peaks at 30.1°, 35.5°, 43.3°, 57.06°, 62.5° and 74.3° were corresponding to the (220), (311), (400), (511), (440), and (533) crystal planes of Fe3O4 with a spinel structure [9, 10].
They are attributed to the Fe‒O stretching mode of magnetite structure [11].
Qiu, Synthesis of hollow Fe3O4 at ZnO at anatase TiO2 core-shell structured spheres, Ceram.

Experimental results (expansion, micro-structure observation and chemical structure analysis of graphite) showed that the optimum volume ratio of concentrated sulfuric acid and concentrated nitric acid was 4:1; the expansion rate was better that added oxidant KMnO4 than added oxidant K2Cr2O7; The best oxidation time (concentrated acid treatment time) was 30~60 min.
Analysis of the chemical structure (IR spectrum).The chemical structural of graphite, graphite intercalation compounds and SG were examined with a Fourier transform infrared spectroscopy.
The chemical structure analysis of graphite intercalation compounds Smaller peaks appeared of the two curves within 1690 ~ 1590 cm-1, which was caused due to H-O-H bending vibrations.
Manthiram: Chemistry of Materials Vol.21(2009), p.5004–5006

To achieve those structures, the Zn powders were annealed at 650°C and 750°C under oxygen environment and atmospheric pressure.
After each experiment, the characterization procedure was done to let us determine and discuss the growth mechanism of those structures.
ZnO structures obtained at 750°C, (a) CL spectra, (b) SEM image, and (c) CL panchromatic image.
Growth and spatially resolved luminescence of low dimensional structures in sintered ZnO.
Materials Chemistry and Physics 83 (2004) 43-47

The structure and mechanical properties were investigated by mechanical tests and SEM observation.
Therefore, difference structures of composites can be developed based on sound wave features.
Results and Discussion Materials’ structures and stiffness.
It is indicated that the sound performance depends on the surface density and the composite structures.
Therefore, the composite structure for sound performance should be determined according to total effect of structure, filler behavior and their relative actions.

The structure and electrochemical properties of the LiFe1-xCaxPO4/C compounds were studied.
The X-ray diffractometer (XRD) results indicated that Ca2+ doping did not affect the structure of the samples, but the unit cell volume of doped sample are slightly increased.
Therefore, we introduced the calcium cations into the lattice of olivine structure for enhancing the electrochemical performance of LiFePO4 cathodes.
Results and Discussion Crystalline Structure.
The lattice parameters of doped sample are slightly increased (see Table 1), indicating that Ca successfully was introduced into LiFePO4 matrix structure.

The composition and structure of these coatings have to be carefully tuned in order to generate a defect-free layer after solidification and to meet the expected service conditions.
Hence a detailed knowledge of the alloying effect on the microstructural features of the carbides (chemistry, shape, content, size, distribution) and on the properties of the matrix (toughness, grain size) is important to develop high-performance Fe-based hardfacing alloys.
The chemistry of these carbides is preferably ruled by strong carbide-forming elements like Ti, W, Mo, Cr, Nb and V [8,9] but distribution and size of secondary carbides also have a great influence on the wear resistance of steels.

In such environment, where their structure changes rapidly, a variety of experimental and theoretical tools are needed to evaluate the temporal evolution of the catalyst structure and activity.
The core-shell structure was prepared using a modified two-steps procedure [6].
This behavior suggests a contraction in the Pt lattice structure induced by the presence of the Ni core.
Analytical Chemistry, 2010. 82(15): p. 6321-6328
Journal of Physical Chemistry B, 2004. 108(10): p. 3262-3276

The main reason for the addition of water in polysulfone dope solution preparation was to enhance the membranes structure.
There are many factors that influenced the formation of membrane structure prepared via phase inversion method.
From the images, it is significant that by increasing water content, the finger-like structure size is increased.
Basically the porosity can be simply defined as weight of water trapped in 1 m3 of membrane structure.
[15] Guillen, G.R., etc., Industrial & Engineering Chemistry Research, 2011. 50(7): p. 3798-3817