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The structures of samples were characterized by IR, XRD, SEM etc.
Ag+ can destroy microbial protein structure by slow-release technology.It can kill microorganisms or make their produce function disorder, so as to achieve the antibacterial effect[9].
In this paper, carboxymethyl was first introduced in the molecular structure of chitosan, translated into carboxymethyl chitosan(CAS) then which reacted with silver nitrate and nanometer titanium dioxide solution fully.So, carboxymethyl chitosan composite hemostatic materials were got.
The structure of carboxymethyl chitosan complexes( Ag+ and nano TiO2 ) were characterized by FTIR ,XRD and SEM.And the blood coagulation- hemostatic properties were observed.
Results and discussion Structure test and analysis.

The structure of the composite was studied by X-ray diffraction and infrared spectroscopy.
And the structure of the specimens was also confirmed by the FTIR spectra with the wave number ranging from 400 to 4000 cm-1.
The results indicated that SF with β-sheet structure existed in the composite; HA in the hardening body of the composite was similar to that of pure CPC (Fig.3 (b)).
The adding of SF had no significant effect on the structure of the composite.
Ding: Materials Chemistry and Physics Vol. 120 (2010) ,p.282 [4] F.

All the diffraction peaks are associated with the JCPDS card no. 036-1451 of the hexagonal ZnO structure.
The electron mobility in the lattice structure decreases and further increases the resistivity at low doping concentration.
Lee, Nanocomposites of reduced graphene oxide nanosheets and conducting polymer for stretchable transparent conducting electrodes, Journal of Materials Chemistry, 22 (2012) 23759-23766
Meng, Initial study on the structure and optical properties of Zn1-xFexO films, Thin Solid Films, 515 (2007) 5462-5465
Pan, Local Fe structure and ferromagnetism in Fe-doped ZnO films, Journal of Physics Condensed Matter, 18, (2006), 7471-7479

Its structure was characterized by gas chromatograph, and the effects of various factors on transesterification rate were studied.
Applications of sonochemistry have been developed in virtually all areas of chemistry and related chemical technologies [6].

The Preparation and Sunlight Activity of Nanocomposite Photocatalysts for Degradation of Methyl Orange Solution Limei Duan1a, Jinghai Liu1b, Xiuting Xu1c, Ling Xu1d, Zongrui Liu1e* 1 College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities, Tongliao 028043, China aduanlmxie@126.com, bjhliu2008@sinano.ac.cn, e liuzr716@163.com (* corresponding author) Keywords: Nanocomposite; Photocatalyst; Methyl orange; Degradation; Sunlight Abstract: Applying one-step solvothermal synthesis method, different CdS/TiO2 nanocomposite materials are obtained by changing the ratio of sulfur and titanium sources.
The composite structure and morphology are determined by XRD and TEM.

That can cause an inhomogeneity of a melt and diverse structure of solidified polymer.
Asian Journal of Chemistry, Volume 25, Issue 9 (2013) 5124-5128.

The purity of the both chemicals is higher than 99%.The other chemicals were analytical reagents, purchased from local chemistry market and had no further purification before use.
To sum up, the RSD of the hydrogels were mainly decided by the structure which was mainly influenced by the three factors and their interactions.
Certainly, all of these are for trying to gain a better understanding of structure-property relationship.
The better control of the structure will achieve the better physical properties.
The structure and the methods of its controlling will be further studied, and the biological evaluation of the PCH will be executed.

The structure of the as-prepared hybrid nanofibers were characterized by fourier transform infrared spectra, scan electron microscopy and UV–visiable absorption spectroscopy.
As shown in Fig. 4a, an almost homogenous structure and smooth surface of the CPPN with diameters in the range of 200-300 nm was obtained.
It was observed some scalelike structures were found on the surface of CPPN, which indicated that FePc were immobilized on CPPN surface.
The morphology and structure of the product were characterized.
Chen, “Click” chemistry for facile immobilization of iron phthalocyanines onto electrospun nanofiber surface, Chem.

Costa 1,d 1 Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810193, Aveiro-Portugal 2 Department of Chemistry, University of Aveiro, 3810-193, Aveiro-Portugal a jjunior@cv.ua.pt, b jsilva@dq.ua.pt, c margarida@cv.ua.pt, d elisabete@cv.ua.pt Keywords: biomaterial, chitosan, brushite, calcium phosphate, composite, scaffold.
The obtained scaffolds showed a regular macroporous and interconnected structure with brushite particles uniformly distributed in the chitosan matrix.
The scaffold micro-structures were characterized by scanning electron microscopy (SEM; Hitachi S-4100).
W a v e n u m b e r (c m -1 ) 0 10 20 30 40 50 60 70 80 Chitosan/Brushite 1:1 Scaffold Chitosan/Brushite 3:1 Scaffold Chitosan Scaffold Intensity (a. u.) 2θθθθ Brushite Chitosan All the scaffolds prepared in the present work exhibit a porous structure.
The presence of pores in the scaffolds can be attributed to the nucleation and growth of ice crystals during the freezing step and to their subsequent sublimation during freeze-drying, leaving behind free open pores in the scaffold structure [2].

Shukla1,a* and Ashutosh Tiwari 2, b 1 Department of Polymer Science, Bhaskaracharya College of Applied Sciences, University of Delhi, New Delhi 110 075, India 2 Biosensors and bioelectronics Centre, Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden sarojshukla2003@yahoo.co.in, b ashti@ifm.liu.se * Corresponding author Key words : Composite materials, FTIR, Electrical properties Abstract:A polysaccharide based bioplolymer, chitosan was grafted with polyaniline through a simple room temperature oxidative-radical copolymerization method employing CuSO4 as a polymerizing agent.
Fig.4.XRD spectra of CHIT-g-PANI SEM: The scanning electron microscopic photograph of CHIT-g-PANI shown in fig -5, confirms the formation of multi-component structure, one is plate like and other is agglomerated particles.
The homogenous fractal like structure is implications of successful graft co-polymerisation.