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Online since: December 2012
Authors: Paul Emile Poleni, Nazare Pereira-Rodrigues, Denis Guimard, Yasuhiko Arakawa, Yasuyuki Sakai, Teruo Fujii
AFM data revealed that the coating of parylene-C changed the roughness of PDMS, which impacted the supramolecular structure of the adsorbed type I collagen.
Although parameters other than roughness, such as the surface chemistry of ParC, might influence the observed collagen microstructure, the collagen deposition process is based on passive overnight adsorption, and thus likely to be more dependent on preparation conditions of the collagen solution (concentration, temperature), rather than surface chemistry.
Protein adsorption on model surfaces with controlled nanotopography and chemistry.
Substrate chemistry influences the morphology and biological function of adsorbed extracellular matrix assemblies.
The effect of surface chemistry on the formation of thin films of native fibrillar collagen.
Although parameters other than roughness, such as the surface chemistry of ParC, might influence the observed collagen microstructure, the collagen deposition process is based on passive overnight adsorption, and thus likely to be more dependent on preparation conditions of the collagen solution (concentration, temperature), rather than surface chemistry.
Protein adsorption on model surfaces with controlled nanotopography and chemistry.
Substrate chemistry influences the morphology and biological function of adsorbed extracellular matrix assemblies.
The effect of surface chemistry on the formation of thin films of native fibrillar collagen.
Online since: November 2011
Authors: Bao Sen Wang, Gui Yang Liu, Li Li Zhang, Ying He, Jun Ming Guo
Their phase structures are characterized by X-ray diffraction (XRD).
The possible reasons responsible for the quick fading of capacity are generally believed to originate from the Jahn-Teller distortion of the cubic spinel structure of LiMn2O4 during discharging with increasing Mn3+ in the structure, the gradually dissolution of Mn3+ to electrolyte via disproportionation reaction and the decomposition of organic solvent at higher potentials [5, 6].
This study focuses on the effect of Al3+ content on the structure of the LiAlxMn2-xO4 materials and their electrochemical performances comparison with the pristine LiMn2O4.
Hence, the improved cyclic stability of the Al-doped spinel should be attributed mainly to the suppression of Jahn–Teller distortion of the cubic spinel with a decreased Mn3+ in the structure.
Acknowledgements The present work was supported by the National Natural Science Foundation of China (No.51062018) and by the Key Subject of Materials Physics and Chemistry of Honghe University.
The possible reasons responsible for the quick fading of capacity are generally believed to originate from the Jahn-Teller distortion of the cubic spinel structure of LiMn2O4 during discharging with increasing Mn3+ in the structure, the gradually dissolution of Mn3+ to electrolyte via disproportionation reaction and the decomposition of organic solvent at higher potentials [5, 6].
This study focuses on the effect of Al3+ content on the structure of the LiAlxMn2-xO4 materials and their electrochemical performances comparison with the pristine LiMn2O4.
Hence, the improved cyclic stability of the Al-doped spinel should be attributed mainly to the suppression of Jahn–Teller distortion of the cubic spinel with a decreased Mn3+ in the structure.
Acknowledgements The present work was supported by the National Natural Science Foundation of China (No.51062018) and by the Key Subject of Materials Physics and Chemistry of Honghe University.
Online since: May 2012
Authors: Huan Pang, Jia Wei Deng, Shao Mei Wang, Jiang Shan Zhang
Cubic-like Nickel Oxide Nanostructures as Large Specific Capacitance and Long-life Supercapacitors
Jiawei Deng, Huan Pang *, Shaomei Wang, Jiangshan Zhang
Key Laboratory for Clearer Energy and Functional Materials of Henan Province, College of Chemistry and Chemical Engineering Department, Anyang Normal University, Anyang, 455000 Henan, P.R.
SEM, TEM and XRD have been employed for the morphology and structure characterization.
These results suggest that both the morphology and structure have important effects on the high performance supercapacitors.
The monodispersed anamorphic cubic NiO nanostructure is obtained by thermal decomposition of anamorphic cubic nanostructured nickel oxalate precursor, which is synthesized by a very simple wet chemistry approach at the room temperature.
The cubes structures have been maintained completely shown in the Fig. 1a, d.
SEM, TEM and XRD have been employed for the morphology and structure characterization.
These results suggest that both the morphology and structure have important effects on the high performance supercapacitors.
The monodispersed anamorphic cubic NiO nanostructure is obtained by thermal decomposition of anamorphic cubic nanostructured nickel oxalate precursor, which is synthesized by a very simple wet chemistry approach at the room temperature.
The cubes structures have been maintained completely shown in the Fig. 1a, d.
Online since: April 2020
Authors: Libor Topolář, Michaela Hoduláková
The results show the time of „critical changes" in the internal structure of the material can be determined.
These changes are probably related to the quality of the particle’s bonds in the inner material structure, which is reflected in the propagation of mechanical waves.
The changes occurring during hydration of the material (inside the structure), changes the passing of the mechanical waves.
Liska, Lea's chemistry of cement and concrete, Butterworth-Heinemann, (2019)
Kurdowski, Cement and concrete chemistry, Springer Sci.
These changes are probably related to the quality of the particle’s bonds in the inner material structure, which is reflected in the propagation of mechanical waves.
The changes occurring during hydration of the material (inside the structure), changes the passing of the mechanical waves.
Liska, Lea's chemistry of cement and concrete, Butterworth-Heinemann, (2019)
Kurdowski, Cement and concrete chemistry, Springer Sci.
Online since: August 2011
Authors: Jing Hua Yu, Pei Ni Zhao, Shen Guang Ge, Jia Dong Huang
In this paper, three kinds of molecularly imprinted sol-gel film (MISF) which have good thermal and chemical stability and three-dimensional network porous structure have been developed.
Molecularly imprinted polymers (MIPs) are an artificially synthesized macromolecular material, which has prearrangement of structure and specific molecular recognition ability2-6.
It is highly cross-linked, has good thermal and chemical stability, and has three-dimensional network porous structure which enhance the preconcentration time of sample.
Based on these superiorities of sol-gel, the molecular imprinting sol-gel (MIS) will be one ideal material for analytical chemistry sensors.
The three-dimensional network porous structure of the MISFs can enhance the preconcentration time of sample and makes the regents contact the template molecules easy which achieves a more complete reaction.
Molecularly imprinted polymers (MIPs) are an artificially synthesized macromolecular material, which has prearrangement of structure and specific molecular recognition ability2-6.
It is highly cross-linked, has good thermal and chemical stability, and has three-dimensional network porous structure which enhance the preconcentration time of sample.
Based on these superiorities of sol-gel, the molecular imprinting sol-gel (MIS) will be one ideal material for analytical chemistry sensors.
The three-dimensional network porous structure of the MISFs can enhance the preconcentration time of sample and makes the regents contact the template molecules easy which achieves a more complete reaction.
Online since: October 2010
Authors: Simone C.Gallani Rodrigues, Meiry Glaúcia Freire Rodrigues, Herve M. Laborde, M.B. Queiroz
Basal spacing, interlamellar structure clay have been characterized using X-ray diffraction (XRD) technique.
To explain such effect, one needs to look at the chemical structure of gasoline.
Comprehensive Supramolecular Chemistry Vol. 7 (1996), p. 219
[7] H. van Olphen: An Introduction to Clay Colloidal Chemistry (Wiley, New York, 1977), p. 66–67
Stewart: Structure and Organic Matter Storage in Agricultural Soils (CRC Press, Boca Raton, FL, 1995)
To explain such effect, one needs to look at the chemical structure of gasoline.
Comprehensive Supramolecular Chemistry Vol. 7 (1996), p. 219
[7] H. van Olphen: An Introduction to Clay Colloidal Chemistry (Wiley, New York, 1977), p. 66–67
Stewart: Structure and Organic Matter Storage in Agricultural Soils (CRC Press, Boca Raton, FL, 1995)
Online since: July 2012
Authors: Huan Pang, Shao Mei Wang, Jiang Shan Zhang, Hang Zhang, Ya Hui Ma, Xue Xue Li, Guo Chang Li
Synthesis of porous cubic nickel oxide nanostructures and their electrochemical property
Shaomei Wang, Huan Panga , Hang Zhang, Yahui Ma, Xuexue Li,
Guochang Li and Jiangshan Zhang
Key Laboratory for Clearer Energy and Functional Materials, College of Chemistry and Chemical Engineering Department, Anyang Normal University, Anyang, 455000 Henan, P.R.
TEM have been employed for the morphology and structure characterization.
The monodispersed porous cubic nickel oxide nanostructures were obtained by thermal decomposition of cubic nickel oxalate precursor, which is synthesized by a very simple wet chemistry approach at the room temperature.
TEM have been employed for the morphology and structure characterization.
The monodispersed porous cubic nickel oxide nanostructures were obtained by thermal decomposition of cubic nickel oxalate precursor, which is synthesized by a very simple wet chemistry approach at the room temperature.
Online since: November 2013
Authors: Iulia Florea, Vasile Soare, Ioan Carcea, Costel Roman, Oana Bălţătescu, Raluca Maria Florea
This opens the door to a large number of rich chemistries which would otherwise contain unacceptable volume fractions of intermetallic compounds to be useful in structural applications.
All the research done on high entropy alloys have shown that to have a bigger performance in studying these alloys must take into account the relationship between alloy and its organizational structure.
Conclusions Due to the mixing entropy effects on solidification it was found that high entropy alloys can easily form the structure FCC or BCC.
[7] X.Yang, Y.Zhang, Prediction of high-entropy stabilized solid-solution in multicomponent alloys, Materials Chemistry and Physics 132, pp.233-238, (2012)
[8] Y.Zhang, Mechanical properties and structures of high entropy alloys and bulk metallic glasses composites, Materials Science Forum 654-656, pp.1058-1061, (2010)
All the research done on high entropy alloys have shown that to have a bigger performance in studying these alloys must take into account the relationship between alloy and its organizational structure.
Conclusions Due to the mixing entropy effects on solidification it was found that high entropy alloys can easily form the structure FCC or BCC.
[7] X.Yang, Y.Zhang, Prediction of high-entropy stabilized solid-solution in multicomponent alloys, Materials Chemistry and Physics 132, pp.233-238, (2012)
[8] Y.Zhang, Mechanical properties and structures of high entropy alloys and bulk metallic glasses composites, Materials Science Forum 654-656, pp.1058-1061, (2010)
Online since: October 2010
Authors: Dong Qing Yuan, Jian Ting Xu
When the sample is irradiated with 5 pulses, there is a periodicity ripples structures, which can be seen from Fig. 1(a) and the magnified images are shown in Fig. 1(e).
The periodic ripples structures are very clear and continuum nearly, with a spacing at the order of irradiation wavelength were observed.
The direction of the grooves were uncertainty.The periodic ripples structures coverd on island structures.
The array was structured by line scanning, at the laser fluence of 1J/cm2 with speed v=500μm/s.
Bäuerle, Laser Processing and Chemistry (second ed.), Springer-Verlag, Berlin Heidelberg, New York (1996)
The periodic ripples structures are very clear and continuum nearly, with a spacing at the order of irradiation wavelength were observed.
The direction of the grooves were uncertainty.The periodic ripples structures coverd on island structures.
The array was structured by line scanning, at the laser fluence of 1J/cm2 with speed v=500μm/s.
Bäuerle, Laser Processing and Chemistry (second ed.), Springer-Verlag, Berlin Heidelberg, New York (1996)
Online since: August 2025
Authors: Marwa M. EL-Tyieb, Adel M.A. Elhdad, Hussein M. Ahmed, Safaa M. Ragheeb
XRD analysis confirmed the successful synthesis of Al-NPs with a well-defined crystalline structure and desirable crystallite size.
TEM is a critical technique for characterizing the morphology, size, and structure of Al-NPs.
XRD is widely used for nanoparticle characterization, providing insights into crystal structure, phase composition, lattice parameters, and grain size.
Ahmed, “Effective granular activated carbon for greywater treatment prepared from corncobs,” Egyptian Journal of Chemistry, 2022
Ahmed, “Removal of Cadmium, Nickel, and Zinc from aqueous solutions by activated carbon prepared from corncob - waste agricultural materials,” Egyptian Journal of Chemistry, 2021
TEM is a critical technique for characterizing the morphology, size, and structure of Al-NPs.
XRD is widely used for nanoparticle characterization, providing insights into crystal structure, phase composition, lattice parameters, and grain size.
Ahmed, “Effective granular activated carbon for greywater treatment prepared from corncobs,” Egyptian Journal of Chemistry, 2022
Ahmed, “Removal of Cadmium, Nickel, and Zinc from aqueous solutions by activated carbon prepared from corncob - waste agricultural materials,” Egyptian Journal of Chemistry, 2021