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So chitosan is suitable for the packaging structure design and food preservation[6].
L:.Food Chemistry.Vol.101(1) (2007), p.308-313
A and Ozogul.Y: Food Chemistry.Vol.85(2004),p.49-57
K and Dutta.J: Food Chemistry.
S and Benjakul.S:Food Chemistry.Vol.121(1) (2010),p. 29-38.

This ‘green’ chemistry knows number of potential applications.
Structuring of the community working on biomineralization.
This subtle chemistry resists our comprehension.
Perrin, Structure et squelettogenèse chez le genre Corallium.
Sommerdijk, Well controlled bio-inspired synthesis of composites: producing and tuning structures as nature does.

Then the electronic structure was calculated for every selected cluster.
More correct results may be obtained when using of quantum chemistry during the geometry optimization procedure.
But in spite of a qualitative estimates of the calculated electronic structure, we can infer that the structures associated with clusters GBSi69O3Cn and GBSi69O4Cn can be used as model structures to study the processes for compensation of oxygen-containing defects by carbon atoms at the GBs in poly-Si and thermal donors in silicon.
Conclusion A study of the atomic configurations and electronic structure of the "core" of Σ5 θ = 37° [001]/(130) tilt grain boundary in poly-Si, contaminated by oxygen in the form of SiO3 or SiO4 complexes with different numbers of the incorporated carbon atoms was performed by a quantum chemistry method in the cluster approximation.
Chemistry Vol. 10 (1989), p. 209

Study of an Inorganic Ion Exchanger Li2TiO3 Jinhe Jiang MicroScale Science Institute , Department of Chemistry and Chemical Engineering ,Weifang University, Weifang, 261061,China Corresponding author.
In this paper, the solid state reaction crystallization method was used to synthesize the Li2TiO4 of spinel-type oxide, whose composition and structure are different from those in literature [3-4], and the property of its ion exchange selective to Li+ was studied.
The structure of compound metal oxide Li2TiO3 crystallized at 750℃ was much perfect.
Li: Synthesis of Li4Mn0.5Ti0.5O4 and its selectivity to Li+ exchange, J.Chinese Journal of Applied Chemistry. 2006,23(4),357

In addition, loading the photo-catalyst uniformly and firmly on carriers, and keeping high catalytic activity and meeting specific physics and chemistry performance are also the key of current study [2-3].
Seen from the Fig.3, we found the structure of TiO2 was mainly anatase type.
The FE-SEM observation verified the formation of nano/micro composite structure.
Jin: Progress in Chemistry, Vol. 17 (2005), p.8

We estimated electron energy structures of nanoparticles and experimentally determined that such nonlinearity is directly related to peculiarities of the energy structure.
These structures are the heterogeneous medium formed by liquid or solid dielectric matrices (e. g., polymer glasses and oils) and nanoparticles of dielectrics (Al2O3, SiO2, MgO, etc.).
The estimated energy band gap structure of Al2O3, SiO2 and ZnO nanoparticles array.
Zhang: The Journal of Physical Chemistry C 112 (2008), p. 17512
De Angelis: The Journal of Physical Chemistry C 116 (2012), p. 5932

The effects of the different binders on the structure and texture of zinc ferrite sorbents were investigated.
The spinel structures are present in the sorbents that have been calcined at 750 0C..
It indicates that spinel structure of ZnFe2O4cannot be affected by different binders.
Spinel structure of ZnFe2O4 cannot be affected by different binders, and its particle diameter is micron level. 4.
,Preparation of zinc ferrite by high-energy ball-milling and microstructure characterization by Rietveld's analysis[J] Materials Chemistry and Physics .2003, 82(1):27-37 [10] Zhao Js, Shi Qc.

X-ray diffraction revealed that the as-prepared nanoscale ceria powder had cubic fluorite structure, TEM image showed that the ceria powder was weakly agglomerated with a particle size of about 10 nm.
Colloid chemistry theory suggests that under the same external conditions and the same concentration, light transmittance indicates small colloidal particle size, heavy transmittance indicates large particle size.
Sample structure Fig.1 X-ray diffraction pattern of the as-prepared nanoscale CeO2 powder The colloid prepared under A3B2C4 was filtered and washed with distilled water and ethanol in succession for several times, the resultant was dried in air and calcined at 80oC for 20 h.
X-ray diffraction pattern of the as-prepared nanoscale CeO2 powder was shown in Fig.1, indicating that the as-prepared CeO2 powder has cubic fluorite structure compared with the PDF card (PDF#01-081-0792).
Journal of Solid State Chemistry. 181(2008) 1614-1620.

It revealed that organisms form their biominerals by different mechanisms compared to classical crystallization known from chemistry.
This so-called Müller bodies are spherical crystalline structures, with a diameter of 3-3.5 µm.
These alveolar vesicles (alveoli) are vacuole-like structures located beneath the plasma membrane.
Nevertheless, potential mineralized structures are often still described only as ‘electron dense’.
Da Vison, Active biological participation in lacustrine barium chemistry, Geochim.

A similar structure of this rhombohedral has been reported [3,5,8].
Parr, Density functional theory of electronic structure, The Journal of Physical Chemistry. 100 (1996) 12974-12980
Nakajima, The crystal structure of Bi 2 Te 3− x Se x. 
Journal of Physics and Chemistry of Solids 24 (1963) 479-485
Crystal structures.