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Online since: October 2018
Authors: Scott M. Vickers, Jeffrey Badura, Jeffrey Toth, Ian R. Dunkley
As these two calcium phosphates contribute different functionality, the ideal ratio in which the biphasic chemistry is prepared is critical to how the bone graft substitute performs, and various formulations have been studied over the past two decades.
In another study investigating the differences between biphasic and phase pure calcium phosphate chemistries, bone formation was observed to be maximized by a formulation with a 20/80wt% HA/b-TCP phase ratio and found that phase pure HA as well as pure b-TCP consistently produced the least amount of new bone [2, 6].
This ceramic chemistry is formed into highly porous granules (80%±10%) that offer both micro and macropore size features.
Magnification to examine the surface morphology reveals a microporous surface structure (pore size < 10µm, Figure 1a) for attachment, retention, and proliferation of bone cells.
The authors of this study found that even though these implants were prepared with the resorbable phase pure b-TCP chemistry, ongoing remodeling was still observed five years post-implantation in large defects [8].
Online since: September 2019
Authors: Yuri N. Starodubtsev, Nadezhda P. Tsepeleva, Vladimir S. Tsepelev
The materials possessing similar structure were also termed as “shechtmanit”.
In such non-ordered systems, new space and time structures referred to as dissipative [5] may spontaneously occur.
The relaxation time of the structure and stabilization of the properties can be recommended as the value of ttreat.
Tsepelev: Equilibrium and nonequilibrium states of metal melts, Fundamental studies of the physical chemistry of metallic melts, Academia Books, (2002) 214-228
Earnshaw, Chemistry of the elements, Butterworth–Heinemann, Oxford, 1998
Online since: July 2019
Authors: P.H.M. van Loosdrecht, Djulia Onggo, M.A. Saleh, K.K. Dewi, A.R. Supandi, H. Kuhn, Agustinus Agung Nugroho
In the previous study shows that in the organic-inorganic hybrid, the change of the buckling structure may due to the change of the local structure of the octahedra as well as the change of the local structure of the organic part.
In the case of PEA, this effect is more evident to the change of crystal structure from non-polar to polar structure [5,6].
The results will describe the change of the local structure in the present of different type of organic ligand based on the electronic structure of the Mn2+ ion.
Palstra, Chemistry of Matterials 24 (2011) 133 [7] Seong-Hun Park, In-Hwan Oh, Sungil Park, Younbong Park, Ji Hyun Kim and Young-Duk Huh, Dalton Trans. 41 (2012) 1237-1242
Langford, Inorganic Chemistry, 2nd ed., New York: W.
Online since: June 2010
Authors: Henryk Morawiec, Józef Lelątko, Krystian Prusik, Grzegorz Dercz, Andrzej Drdzeń
Structure of the near stoichiometric thermally treated Co2NiGa Heusler compounds K.
For the alloys quenched from the 1100 0C modulated structures were observed.
Structure of the phases was studied by XRD (Philips Expert) and the high resolution TEM (JEM 3010) operated at 300 kV.
After quenching the metastable state was introduced and as the effect the modulated martensite structure was observed.
Solid State Chemistry 179 (2006) 3225-3533
Online since: June 2017
Authors: Xing Fa Ma, Meng Wang, Shi Sheng Lv, Jian Xun Qiu, Xin Tao Zhang, Guang Li, Xiao Chun He, Ming Jun Gao
Structure and properties Characterization.
Cooper, Aqueous solubilization of C60 fullerene by natural protein surfactants, latherin and ranaspumin-2, Biophysical Chemistry. 214–215 (2016) 27–32
Officer, Effect of π-conjugation on electrochemical properties of poly(terthiophene)s 3′-substituted with fullerene C60, Journal of Electroanalytical Chemistry. 772 (2016) 103–109
Chirita, Optical evidence for chemical interaction of the polyaniline/fullerene composites with N-methyl-2-pyrrolidinone, Journal of Molecular Structure. (2016), in press
Li; Organic/inorganic nanocomposites of ZnO/CuO/chitosan with improved properties, Materials Chemistry and Physics. 178(2016)88-97
Online since: January 2013
Authors: Yin Zhi Jiang, Ya Yi Shi, Da Wei Liang
Synthesis, Crystal Structure and Bio-activity of 1-Phenyl-3-(2-Hydroxyl-Phenyl) -5-(2,4-Chloro-Phenyl)-2-pyrazoline Yinzhi Jiang1, a*, Yayi Shi 1,b, Dawei Liang1,b 1Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018,P.R.
Found that there exist intramolecular H-bonds and the structure was one-dimensional lattice molecular.
Jeong and his coworkers reported the synthesis, inhibiting ldl oxidation activity and structure-activity relationship of the pyrazoline derivates.
So it is very important to study the synthesis, structure and bio-activities of the pyrazoline derivates.
The structure was solved by direct methods (SHELX-97) and expanded with successive Fourier technique.
Online since: October 2021
Authors: Karel Dvořák, Dušan Dolák, Dorothea Sklenářová
In case of silica, alumina, and iron oxides the effect is the opposite and the structure is easier sintering [2].
The structure of sample A burned at 1260 °C (Fig 1c)) is more sintered than sample B burned at 1380 °C (Fig 1h)).
The cracked structure of the CaO crystals of sample A burned at 1380 °C (Fig 1d)) is also evident.
It is known that crystalline limestones are more prone to decomposition of the structure during burning.
Oates, Lime and limestone: chemistry and technology.
Online since: October 2010
Authors: Yong Lan Li, Hong Wei Zhang
Lotus Fiber Production and Its Property Hong Wei Zhang1, a, Yong Lan Li1,b 1Textile Chemistry Department, Changzhou Textile Garment Institute, Changzhou 213164, China aweihongz@126.com, balanlee09@126.com Keywords: Lotus fiber, Component, Structure, Property Abstract.
The components and structure of the lotus fiber have been analyzed and indicated with chemical, infrared spectroscopy (IR), X-ray diffractometer (X-RD) and scanning electron microscope (SEM).
In this paper, lotus fiber was made from wasted lotus stalk with pool dipping, sodium hydroxide boil and hydrogen peroxide bleach methods, and the structure and properties of the lotus fiber were tested and analyzed comprehensively.
Lotus fiber Jute Fig.1 FTIR of lotus fiber and jute Fiber Structure Analyses Scanning electron microscope analyses.
Figure2 illustrates the 500 times magnification SEM photos of cross-section and longitudinal structures of lotus fiber.
Online since: May 2019
Authors: Bin Huan Sun, Yu Lin Li
The structure is shown in fig. 3.
[8] Yang N, Zhu S M, and Zhang D: Chinese Journal of Inorganic Chemistry.
[45] Staudenmaier L: European Journal of Inorganic Chemistry.
[47] Li J H, Kuang D Z, Feng Y L and et al.: Chinese Journal of Analytical Chemistry.
[52] Zhu C L, Song X Y and et al.: Journal of Materials Chemistry.
Online since: June 2014
Authors: Ying Feng Tian, Kui Wang, Xia Ping Zhu, Ya Ting Deng
Copolymerization Kinetics of Polyetyhylenglycol Allylether Type Polycarboxylate Superplasticizer Yingfeng Tian1,a, Xiaping Zhu2,b,*, Yating Deng3,c, Kui Wang4,d 1,2,4College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions, Chengdu 610059,China. 3COFCO Huaxia Great Wall Red Wine Co.
The structure of polycarboxylate superplasticizer had been characterized by IR and 1H-NMR.
The structure of product had also been characterized.
Niu, Model for Molecular Structure of Polycarboxylic Acid Type Superplasticizer and Its High Performance Designing.