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Online since: March 2015
Authors: Magdalena Popczyk, Grzegorz Dercz, Bożena Łosiewicz
The activity of the electrode material depends on the type, structure and chemical composition.
These properties of the structure and chemical composition of the layer depend on the conditions in which it is produced and the kind of metal.
The studies show that the nickel-molybdenum-phosphorus layers, in contrast to the nickel-molybdenum ones, have a nano-crystalline structure.
Budniok: Proc. of the V International Symposium – Forum Chemiczne, Department of Chemistry, Warsaw University of Technology, 1999, p. 173, Warsaw, Poland
Budniok: Proc. of the IV International Symposium – Forum Chemiczne, Department of Chemistry, Warsaw University of Technology, 1998, p. 174, Warsaw, Poland
These properties of the structure and chemical composition of the layer depend on the conditions in which it is produced and the kind of metal.
The studies show that the nickel-molybdenum-phosphorus layers, in contrast to the nickel-molybdenum ones, have a nano-crystalline structure.
Budniok: Proc. of the V International Symposium – Forum Chemiczne, Department of Chemistry, Warsaw University of Technology, 1999, p. 173, Warsaw, Poland
Budniok: Proc. of the IV International Symposium – Forum Chemiczne, Department of Chemistry, Warsaw University of Technology, 1998, p. 174, Warsaw, Poland
Online since: May 2014
Authors: Yuan Tong Gu, Bao Cheng Zhang, Tong Li
Molecular Dynamics (MD) description of living systems in terms of physics and chemistry were studied for decades with many successful applications accomplished [13].
Filopodia is an important cellular structure which initiates the migration of living cells.
Lamellipodia and filopodia are two typical cellular structures in cell migration and spreading.
Conclusion The microfilaments are cryptic cellular structures that are involved in complex cellular activities.
The mechanical properties have dependency on both the networks structures and the material behaviour of F-actin.
Filopodia is an important cellular structure which initiates the migration of living cells.
Lamellipodia and filopodia are two typical cellular structures in cell migration and spreading.
Conclusion The microfilaments are cryptic cellular structures that are involved in complex cellular activities.
The mechanical properties have dependency on both the networks structures and the material behaviour of F-actin.
Online since: October 2011
Authors: Shu Liang Wang, Chun Yuan Huang, Kui Lin Deng, Ting Gao, Peng Fei Zhang, Li Rong Dong, Dan Dan Li, Wen Hui Jin
Drug Release of a pH/Temperature Sensitive Core-shelled Beads from Sodium Alginate and Poly(N-acryloylglycinate)
Kuilin Deng*1, Chunyuan Huang1, Pengfei Zhang2, Lirong Dong1, Dandan Li1, Ting Gao1, Shuliang Wang1, Wenhui Jin1
1College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
2Department of Biochemistry, Baoding University, Baoding 071000, China
Tel: +86-0312-5971137; Fax: +86-0312-5079525; E-mail: huangchunyuan2008@126.com
Keywords: pH/temperature sensitive, Core-shelled structure, Drug release
Abstract: In this paper, a new pH/temperature sensitive hydrogel bead (HME) with core-shelled structure as a drug delivery system was prepared using N-acryloylglycinate and sodium alginate.
The prepared hydrogel show rapid stimulus-response to the variation of temperature and pH due to their unique chemical composition and structure.
In the FTIR spectrum of SA, peaks at 3300 cm-1, 1100 cm-1, and 1700 cm-1 were ascribed to the OH, C-O-C and C=O stretching vibration, respectively, which is consistent with the structure of SA.
The chain of macromolecules contracted and pore structure collapsed when temperature is higher than its LCST.
The highly dense network structure in HME with more PME content resists the diffusion of caffeine molecules.
The prepared hydrogel show rapid stimulus-response to the variation of temperature and pH due to their unique chemical composition and structure.
In the FTIR spectrum of SA, peaks at 3300 cm-1, 1100 cm-1, and 1700 cm-1 were ascribed to the OH, C-O-C and C=O stretching vibration, respectively, which is consistent with the structure of SA.
The chain of macromolecules contracted and pore structure collapsed when temperature is higher than its LCST.
The highly dense network structure in HME with more PME content resists the diffusion of caffeine molecules.
Online since: April 2016
Authors: Rui Ying He, Chang Ping Wei, Guo Dong Wang, Jing San, Chun Jia Peng
Preparation and Photocatalytic Properties of Terrace Composite
SnO2/ TiO2: Cu2+ Film
Guo-dong Wanga , Chang-ping Weib, Rui- ying He, Jing San and Chun-jia Peng
School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, China, 130022
a251514802@qq.com, bchangpingwei@hotmail.com
Keywords: Sol-gel method,SnO2/TiO2 film,Cu-doping,Photocatalysis
Abstract.
The results showed that the SnO2/ TiO2:Cu2+films were anatase structure, the surface were flat and stable without obvious crack, average diameter was about 20 nm.
The mechanization on crystal structure , enery band and photocatalytic properties of Cu2+-doped .in regard to SnO2/TiO2 composite films have been studied, but Cu2+was introduced to TiO2, then composited with pure SnO2 to form terrace structure, has not been reported by anybody.
Crystal plane space group I41 / AMD (141) tetragonal structure, lattice parameters a=0.3784, b=0.3784, c=0.9514 proves that TiO2 film is anatase.
Li: Chinese Journal of Inorganic Chemistry, Vol. 22 (2006) No.12, p.2173
The results showed that the SnO2/ TiO2:Cu2+films were anatase structure, the surface were flat and stable without obvious crack, average diameter was about 20 nm.
The mechanization on crystal structure , enery band and photocatalytic properties of Cu2+-doped .in regard to SnO2/TiO2 composite films have been studied, but Cu2+was introduced to TiO2, then composited with pure SnO2 to form terrace structure, has not been reported by anybody.
Crystal plane space group I41 / AMD (141) tetragonal structure, lattice parameters a=0.3784, b=0.3784, c=0.9514 proves that TiO2 film is anatase.
Li: Chinese Journal of Inorganic Chemistry, Vol. 22 (2006) No.12, p.2173
Online since: December 2012
This scientific field investigates the relationship between the structure of
materials at atomic or molecular scales and their macroscopic properties.
It incorporates elements of applied physics and chemistry.
A major breakthrough in the understanding of materials occurred in the late 19th century, when the American scientist Josiah Willard Gibbs demonstrated that the thermodynamic properties related to atomic structure in various phases are related to the physical properties of a material.
It incorporates elements of applied physics and chemistry.
A major breakthrough in the understanding of materials occurred in the late 19th century, when the American scientist Josiah Willard Gibbs demonstrated that the thermodynamic properties related to atomic structure in various phases are related to the physical properties of a material.
Online since: April 2015
Authors: Ming Jun Peng, Bo Huang, Yong Hua Duan, Sun Yong
Thus, macroalloying has been found to make the crystal structure of TiAl3 transform the tetragonal D022 structure to the cubic Ll2 structure by adding the third elements of Mn, Cr, Nb, Pd or Pt [5-7].
The few ternary L12-TiAl3 phases including only Ti(Al, Zn)3 and (V, Ti)Al3 have been investigated: the addition of Zn to the Al sublattice of TiAl3 stabilizes the cubic L12 structure relative to the tetragonal D022 and D023 structures [13]; the valence electron density, the band structures and the band decomposed charge density for (V, Ti)Al3 in the D022 and L12 structures have been calculated by ab initio method [14].
Fig. 2 Band structures nearby Fermi level of L12-TiAl3 and L12-Ti (Al, Pt)3.
Pomjakusin, Formation and crystal chemistry of cubic ternary phases with filled Th6Mn23-type and AuCu3-type in the systems Ti-MVIII-Al, Intermetallicsl. 12(2004) 563-577
Etourneau, Structural chemistry and phase relations in intermetallic systems Ti-{Pd, Pt}-Al, Intermetallics. 8(2000) 1377-1384
The few ternary L12-TiAl3 phases including only Ti(Al, Zn)3 and (V, Ti)Al3 have been investigated: the addition of Zn to the Al sublattice of TiAl3 stabilizes the cubic L12 structure relative to the tetragonal D022 and D023 structures [13]; the valence electron density, the band structures and the band decomposed charge density for (V, Ti)Al3 in the D022 and L12 structures have been calculated by ab initio method [14].
Fig. 2 Band structures nearby Fermi level of L12-TiAl3 and L12-Ti (Al, Pt)3.
Pomjakusin, Formation and crystal chemistry of cubic ternary phases with filled Th6Mn23-type and AuCu3-type in the systems Ti-MVIII-Al, Intermetallicsl. 12(2004) 563-577
Etourneau, Structural chemistry and phase relations in intermetallic systems Ti-{Pd, Pt}-Al, Intermetallics. 8(2000) 1377-1384
Online since: March 2020
Authors: Da Hong Li, Jian Ping Cao, Xiang Jun Yun, Pawan Kunmar, Wei Li
Analytical Chemistry, 2019. 91(13): p. 8298-8303
The Journal of Physical Chemistry C, 2018. 122(50): p. 28619-28628
Analytical chemistry, 2016. 88(10): p. 5338-5344
Analytical Chemistry, 2018. 90(24): p. 14137-14144
Analytical Chemistry, 2017. 89(22): p. 12306-12313
The Journal of Physical Chemistry C, 2018. 122(50): p. 28619-28628
Analytical chemistry, 2016. 88(10): p. 5338-5344
Analytical Chemistry, 2018. 90(24): p. 14137-14144
Analytical Chemistry, 2017. 89(22): p. 12306-12313
Online since: March 2012
Authors: Qi Feng Liu, Hai Yun Xu, Wen Xian Zhao, Cui Lan Feng
Study on pH Fluorescent Probe Based on Exocyclic Ring-Fused Boron Dipyrromethene Fluorophore
XU Hai-yun*1, 2, LIU Qi-feng1, ZHAO Wen-xian1, FENG Cui-lan1
(1 College of Chemistry and Chemical Technology, Shangqiu Normal University, Shangqiu 476000, China)
(2 Department of Chemistry and Chemical Technology, Huainan Normal University, Huainan 232001, China)
Corresponding author: Xu Hai-yun, associate professor; E-mail: xuhyun@163.com; Research interests: fluorescent probes
Key words 4, 4-Difluoro-4-bora-3a, 4a-diaza-s-indacene (BODIPY) dyes; fluorescent probe; pH-sensor; fused exocyclic rings; photoinduced electron transfer(PET)
Abstract Compound d was prepared by the improved three-step synthetic route using cyclohexene as starting material.
Compared with tradition pH indicator method which is based on colour change, and some other analytical methods, pH fluorescence probe method which is of good selectivity, high sensitivity, small sample size, simpleness and quickness, has been widely applied in the analytical chemistry fields, especially fields of molecular biology, bioanalytical chemistry, cytobiology, iatrology[6].
The Chemistry of fluorescent bodipy dyes: versatility unsurpassed[J].
A multianalyte chemosensor on a single molecule: promising structure for an integrated logic gate[J].
Monitoring pH and solvent proticity with donor-acceptor-substituted biphenyls: a new approach towards highly sensitive and powerful fluorescent probes by tuning the molecular structure[J].
Compared with tradition pH indicator method which is based on colour change, and some other analytical methods, pH fluorescence probe method which is of good selectivity, high sensitivity, small sample size, simpleness and quickness, has been widely applied in the analytical chemistry fields, especially fields of molecular biology, bioanalytical chemistry, cytobiology, iatrology[6].
The Chemistry of fluorescent bodipy dyes: versatility unsurpassed[J].
A multianalyte chemosensor on a single molecule: promising structure for an integrated logic gate[J].
Monitoring pH and solvent proticity with donor-acceptor-substituted biphenyls: a new approach towards highly sensitive and powerful fluorescent probes by tuning the molecular structure[J].
Online since: January 2012
Authors: Chang An Di, Xin Liu, Li Long Gao, De Ren Kong
Article designs and analysis the structure of mechanical protection shell at the structural design, strength analysis, etc.
2.
Structure material of the system selects 30CrMnSi, it is a high-strength alloy steel.
The mechanical structure of the system mainly bases on mechanical shell and cylinder two parts.
The entire structure appears maximum failure stress in the junction between the internal thread and the right-angle of exine.
Simulation results show that the design of the mechanical structure can be used in high overload conditions.
Structure material of the system selects 30CrMnSi, it is a high-strength alloy steel.
The mechanical structure of the system mainly bases on mechanical shell and cylinder two parts.
The entire structure appears maximum failure stress in the junction between the internal thread and the right-angle of exine.
Simulation results show that the design of the mechanical structure can be used in high overload conditions.
Online since: February 2019
Authors: Olga Yu. Makovskaya, T.D. Polshina
Structure of akaganeite – arrangement of octahedral double chains in tunnels with chloride ions in the center of the tunnels.
Chloride ions are balanced by hydrogen ions in structure.
Before sorption, the crystal structure of iron oxyhydrate was saturated by OH groups.
Suib, Synthesis and anion exchange of tunnel structure akaganeite, Chemistry of Materials, 13(12) (2001) 4595-4602
Iler, The Chemistry of silica: Solubility, Polymerization, Colloid and Surface Properties and Biochemistry of Silica, Wiley-Interscience. 1979.
Chloride ions are balanced by hydrogen ions in structure.
Before sorption, the crystal structure of iron oxyhydrate was saturated by OH groups.
Suib, Synthesis and anion exchange of tunnel structure akaganeite, Chemistry of Materials, 13(12) (2001) 4595-4602
Iler, The Chemistry of silica: Solubility, Polymerization, Colloid and Surface Properties and Biochemistry of Silica, Wiley-Interscience. 1979.