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Online since: June 2012
Authors: Ming Bo Xu, Jie Yang, Yong Kui Huang, Shui Jin Yang
In addition, MCM-48 maintained high surface areas and mesoporous structure after calcined.
The structures of MCM-48 and H4SiW12O40/MCM-48 were characterized by FT-IR spectra.
In these, the calcined MCM-48 maintained high surface areas and mesoporous structure.
It could be seen from the IR of H4SiW12O40/MCM-48 that MCM-48 still maintained mesoporous structure on H4SiW12O40/MCM-48 and four new peaks at 1089.4, 973.8, 926.8, and 802.1 cm-1appeared.
The peaks of 1089.4, 973.8, 926.8, 802.1 cm-1, which were the symbols of Keggin structure of H4SiW12O40, indicated that this kind of structure was not destroyed in the impregnated procedure.
Online since: April 2014
Authors: Pat Sooksaen, Malin Rapp, Kanokporn Potharin
ZnO nano-scale structure can be synthesized in gas phase resulted in various morphologies for different applications.
In the wurtzite structure of ZnO, both polar and non-polar plane exist.
Wurtzite structure of ZnO was obtained for all synthesized conditions.
Yacaman, Synthesis of assembled ZnO structures by precipitation method in aqueous media.
Materials Chemistry and Physics, (2009), 115, 172-178 [3] A.
Online since: September 2008
Authors: Mohsen Shahinpoor
Their NMR studies enable more detailed structural investigations of the nanometer-scale structure and dynamics of PTFE based ionomers.
edition, (2007) 3- Kim K.J. and Shahinpoor, M., Guest Editors, Special Issue: Biomimetics, Artificial Muscles, and Nano-Bio 2004, Journal of Intelligent Material Systems and Structures, 2007; 18: 101, (2007) 4- Shahinpoor, M. and Hans-Jörg Schneider, Editors, -Intelligent Materials‖, Royal Society of Chemistry (RSC) Publishers, Thomas Graham House, Science Park, Milton Road Cambridge CB4 0WF, Great Britain,1 st. edition, (2008) 5- Shahinpoor, M. and K.
Fundamentals,‖ (Review Paper), Smart Materials and Structures Int.
Industrial and Medical Applications,‖ (Review Paper), Smart Materials and Structures Int.
Electroanalytical Chemistry, vol. 480, pp. 186198 20-Nemat-Nasser, S., and J.
Online since: December 2012
Authors: Giulia Canton, Gobind Bisht, Lawrence Kulinsky, Marc Madou
Carbon-MEMS is a well-established technology that allows direct 2D and 3D micro-manufacturing of carbon functional structures, e.g. carbon electrodes [7].
This is achieved by formation of the initial micro-patterned structure through photolithography of SU-8 (a photosensitive epoxy) in single or multiple layers and by subsequent pyrolysis of the processed SU-8 structure in an inert environment (vacuum, Ar, or N2) at 900°C.
For example, they can be functionalized using the versatile functionalization chemistry of carbon to attach a variety of receptor molecules.
Figure 4- Schematic of C-MEMS structure for the fabrication of suspend carbon fibers.
Figure 5– As electrospun SU-8/PEO/ Na3PO4 aligned fibers on the top of the Carbon-MEMS structure.
Online since: August 2012
Authors: Shu Bo Wang, Ya Fei Lv, Jin Hai Wang, Yu Fang Cui, Jin Yan Du, Yao Wu Wang, Yu Ming Shang
The structure of resulting polymers was characterized by FTIR spectroscopy.
The structure of its single cell has been illustrated by many researchers [1,2].
Many families of polymers with different chemical structures have been explored as AEM materials,forexample[4–8].
The structure of GFPEO was showed in Fig. 1.
Chemistry structure of GFPEO Characterization.
Online since: April 2015
Authors: Guo Wei Wang, Ze Hua Zhou, Ze Hua Wang, Han Liu, Jia Shao, Yu Yi, Xin Zhang
Furthermore, the relationship between holding time, cooling method and bonding strength as well as micro-structures of AT13 has not been addressed in the literature.
The aim of this investigation is to understand the influence of various holding times and cooling methods of air heat treatment on the bonding strength and the micro-structure of air plasma-sprayed AT13.
Micro-structure and bonding strength between coating-substrate in various cooling methods.
Materials Chemistry and Physics, 118(2009): 37-45
Comparison of the structure and wear resistance of Al2O3-13 wt.% TiO2 coatings made by GSP and WSP plasma process with two different powders [J].
Online since: May 2006
Authors: Paula M. Vilarinho, Elvira Fortunato, Regina da Conceição Corredeira Monteiro, Viorica Muşat, E. Segal
At 200 ºC, the crystalline structure is well defined in terms of ZnO hexagonal lattice parameters, although residual organic compounds and water were not yet fully removed and an amorphous phase coexists.
The increase of treatment temperature up to 300, 400 and 600ºC leads to a gradual removal of the residual organic compounds and therefore to small change of ZnO crystalline structure in terms of lattice parameters.
Above 150ºC, the formation of ZnO crystalline structure takes place simultaneously with the decomposition of this intermediary compounds.
At 200ºC, the crystalline structure is well defined in terms of ZnO hexagonal lattice parameters.
At 200ºC, the crystalline structure is well defined in terms of ZnO hexagonal lattice parameters, although residual organic compounds and water were not yet fully removed and an amorphous phase coexists.
Online since: December 2013
Authors: Chuan Tang Wang, Qi Wu
The PHD finger is a highly conserved structural domain in roles with regulating transcription and modification of chromatin structure.
SWISS-MODEL Protein Modelling Server (http://swissmodel.expasy.org/) was used to construct the 3D structure of the PHD finger.
The ligaiton scheme of PHD domain in DNMT3L structure model was assumed to be LIM-like [6].
This domain is a common structure found in wide variety of eukaryotic proteins [1].
Ayer, The polybasic region that follows the plant homeodomain zinc finger1 of Pf1 is necessary and sufficient for specific phosphoinositide binding, Biological Chemistry. 281 (2006) 28831-28836
Online since: May 2011
Authors: Lie Feng Liang, Jie Weng, Xiao Yi Han, Xiao Cai Yan
Unfortunately, HA when is formed into porous structures exhibits very low compression strength.
The scaffolds should satisfy biological characteristics such as pore size, porosity, pore interconnectivity, pore shape, material surface chemistry, effective scaffold permeability and scaffolds stiffness that can affect bone regeneration [4,5].
Therefore the major consideration for scaffold fabrication is to maintain mechanical strength with vital porous structure in addition to a specified composition.
Unfortunately, HA when formed as porous structures exhibits very low compression strength.
The structural analysis by XRD as shown in Figure 6 indicates that the adopted manufacturing process did not change the crystalline structure of HA.
Online since: September 2013
Authors: Darinee Phromyothin, Sirapat Pratontep, Pakawat Chittratan, Prawonwan Thanakit, Thanawee Chodjarusawad
Moreover, quantum chemical calculations were used to study the electronic and optical properties of the molecular structure of DTP-C under the density functional theory.
Figure. 1 Structure of DTP-C as chemosensor.
The below 320 nm occurred the trend of absorption enhancement in Fe(II)/DTP-C complex when adding Fe(II) may be result of resonance in the molecular structure.
The electronic structures The electron densities of DTP-C and Fe(II)/DTP-C complex are illustrated in Table 1.
Acknowledgments The authors would like to thank the computational resources at the Laboratory for Computational & Applied Chemistry (LCAC), Kasetsart University, and the large scale simulation research laboratory of NECTEC.