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The flaky character and more compact structure of composites were both confirmed by scanning electron microscopy.
They received the Nobel Prize in Chemistry for their work as a result of their discovery [1].
Porous-like surface morphology can be clearly seen in the composite structure, which facilitates the water adsorption required for humidity sensing [21]. 1.3 Humidity sensing studies The variation of electrical resistance and sensing response of PTh with relative humidity in the range of 11%-97% is shown in Fig.3a and 3b respectively.
The accumulation of PTh molecular chains on the graphene sheets, facilitated the water molecules capillary action in the pore-like structures created due to the formation of the composite [22].
Scanning electron microscopy revealed the flaky-agglomerated structures, and X-ray diffraction studies confirmed the crystalline nature of the composite.

Then, microcapsules of oregano essential oil were prepared with oregano essential oil, sodium alginate, Tween 80, and monoglycerides, and their internal structure were observed by SEM, and their oils contain were tested by UV-visible spectrophotometer inspection.
The microcapsules of essential oil was placed on the glass with a blade cut at middle, and then adhered to the sample stage, the internal structure of the cross section observed after sprayed gold by SEM (JSM-6380, JEOL CO.
Fig.2 SEM photos of internal structure of microcapsules of oregano essential oil Fig.1 Antimicrobial activity of oregano essential oil against Botrytis cinerea.
The internal structure of the of oregano essential oil microcapsules under SEM was shown in Fig.2, there were many porous inside of microcapsules, oregano essential oil was embedded in the porous structure of the microcapsules, and the embedding rate of oregano essential oil in microcapsules was 60.5%.
K: Postharvest Biology & Technology, Vol. 32 (2004), p.235-245 [4] Seydim, A.C. and Sarikus, G.: Food Research International Vol. 39 (2006), p.639-644 [5] Govaris, A., Solomakos, N., Pexara, A., and Chatzopoulou, P.S.: International Journal of Food Microbiology Vol. 137 (2009), p.175-180 [6] Goulas, A.E., and Kontominas, M.G.: Food Chemistry Vol. 100 (2007), p.287-296 [7] Liu Guangfa, Wang Jianqing, and Zhao Yazhu: Packaging Engineering Vol.33 (2012), p.20 [8] Pilar Herna´ndez-Mun˜oz, Eva Almenar, Valeria Del Valle, Dinoraz Velez, and Rafael Gavara: Food Chemistry Vol.110 (2008) , p.428-435 [9] Iraj Rasooli, Mohammad Bagher Rezaei, Abdolamir Allameh: Food Control Vol. 17(2006), p.359-364 [10] Wu Caie, Wang Wensheng, and Kou Xiaohong: Journal of Fruit Science Vol. 18(2001), p.368

SEM images revealed the deterioration on the physical structure of cellulose after 24 hrs acetylation.
Acetic anhydride (CH3CO)2O was obtained from the Chemistry Lab of USTP.
The alkali and bleaching treatment resulted to high quality cellulose characterized by clean fiber structure which is necessary for cellulose swellability and increase in the affinity of the cellulose hydroxyls toward the acetylation.
After 24 hrs acetylation, a cylindrical shaped micro-sized fiber with perforated layer can be observed which indicates deterioration on the physical structure of the cellulose acetate sample.
(Editor): Cellulose Chemistry and Properties: Fibers, Nanocelluloses and Advanced Materials, Springer 2016

Such process tasks as roughness and coating making generate current scientific challenges in the field of surface physical chemistry, for example the problem of material adhesive power [5-6].
Physical chemistry of high-molecular compounds is rapidly developing in the frame of fundamental science and different technologies.
Consequently, our structural and chemical conception allows adjusting the precursor activity to its intermolecular structure for the sol-gel process.
The multilayered structure provides high electric strength and thermal conductivity; 5.
Wool, Adhesion at Polymer-Solid interfaces: Influence of Sticker Groups on Structure, Chain Connectivity and Strength, J.

As known, morphology-controlled synthesis of nano- and microcrystals with well-defined shapes is an important goal of modern materials chemistry, because the properties of nano- and microcrystals depend not only on their composition, but also on their structure, phase, shape, size, and size distribution [3].
At a pH of 7 (lower OH- concentration), the crystal growth habit is mainly affected by the interior structure rather than the exterior condition.
So we obtained SrWO4 crystals with olive-like morphology due to its scheelite structure.
WO42- has a tetragonal structure, W6+ is located in the centre of the tetragonal structure with four O2- located in the four apex angle.
The SrWO4 crystals prepared at different concentration of reactants have a good crystallinity and pure scheelite structure.

We investigated the properties of single crystal HEAs with a Im/3m BCC structure and a Fm/3m FCC structure.
The lattice parameter was 3.42 Å for the BCC structure, agreement with previous reports of 3.65 Å [25] and 3.55 Å [26].
The cubic crystal structure was defined as [27]: C11>0, C44>0, C11 – C12>0, C11+2C12>0
Journal of Physics and Chemistry of Solids. 61 (2000) 315
Journal of Physics and Chemistry Solids. 24 (1963) 909

In this context, carbon nanotubes (CNT) represent the most attractive and challenging structures for formation electroconductive polymeric nanocomposites.
However, colloidal materials such as carbon nanotubes do not spontaneously suspend in polymers, thus the chemistry and physics of filler dispersion is a major issue in actual research.
A number of studies about covalent modification have been reported, including oxidation, fluorination [1], and aryl diazonium chemistry [2,3].
The disadvantage of covalent modification is the interference in the electronic structure of CNT and thus certain deterioration of some properties.
The self-assembling of CNT into nanoscale structures is more favourable when using surfactant mixtures of DBSA and CTAB.

The structure and crystal properties of the samples were investigated by X-ray diffraction (XRD).
Moreover, it will destroy the structure and reduce the capability of semiconductor when the doped ratio over the stable range.
The changed structure decreased the crystal sizes and improved the semiconductor properties and H2 sensitivity of SnO2.
[2] Liujiang Xi, Dong Qing, Xincun Tang and Chunjiao Chen: Materials Chemistry and Physics, Vol. 108 (2008), p. 232
Sainkar, et al.: Materials Chemistry and Physics, Vol. 84 (2004), p. 37.

The WO3 film was prepared by dip coating method with WCl6 as the soure of tungsten and P123 as the structure-directing agent.
The films prepared by different methods exhibit different crystal structure, morphology, pore structure and specific surface area.
So we inferred the mass ration could have an important effect on the mesoporous structure of the WO3 film.
These results show that a nice mesoporous structure can result in a desirable electrochromic reversibility.
Frindel, Ryan C.Hayward, et al: Chemistry of Materials Vol. 14 (2002), P. 3284

Synthesis, Crystal Structure and Characterizations of a Novel Open-framework Lanthanide Imidazoledicarboxylate Hui-duan Li 1,a 1 Department of Chemistry and Life Science, Chuxiong Normal University, Yunnan, Chuxiong 675000, PR China alhd08@cxtc.edu.cn Keywords: imidazoledicarboxylate; oxalate; solvothermal synthesis; extra-large channels.
The construction, crystal structure and properties and potential application of metal imidazoledicarboxylate frameworks have currently attracted considerable attention.
Synthesis, crystal structure and structural characterizations for 1 were reported in this paper.
Determination of crystal structure of compound 1 Suitable single crystal of 1 was selected for single-crystal X-ray diffraction analyses.
The structure was solved by direct methods and refined by full-matrix least-squares on F2 using SHELXTL-97 software package.