Research on the Preparation and Antibacterial Property of Nanometer-Magnesium Oxide Powder

2014 ◽  
Vol 1033-1034 ◽  
pp. 1063-1067
Author(s):  
Bo Zhou ◽  
Jun Liu ◽  
Jie Zhang
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Property ◽  
Solid Phase ◽  
Raw Materials ◽  
Circle Method ◽  
Phase Method ◽  
Structure And Property ◽  
Solid Phase Method ◽  
Ft Ir

With the H2C2O4·2H2O and Mg(NO3)2·6H2O as the raw materials, nanometer-MgO powder was synthesized at different temperature by the low temperature solid phase method. After the characterization of the structure and property of this kind of nanometer-MgO powder with TG, XRD, SEM and FT-IR, etc, the antibacterial property of nanometer-MgO powder to Escherichia Coli and Staphylococcus Aureus was examined through the bacteriostatic circle method. The results indicated that the powder was single crystal, complete crystallization and uniform distribution with the 10 nm of particle size. It had better resistance and capacity of killing bacteria and the diameter of the bacteriostatic circle was greater than 19 mm.

Synthesis and characterization of cellulose carbamate by liquid-solid phase method

2017 ◽  
Vol 18 (1) ◽  
pp. 88-94 ◽  
Author(s):  
Li-Kun Xiong ◽  
Guo-Ming Yu ◽  
Cui-Yu Yin
Keyword(s):  
Solid Phase ◽  
Synthesis And Characterization ◽  
Phase Method ◽  
Cellulose Carbamate ◽  
Solid Phase Method

Synthesis and characterization of lactic acid esterified starch by an in-situ solid phase method

2020 ◽  
Vol 156 ◽  
pp. 1316-1322
Author(s):  
Ping Li ◽  
Xiaoyu He ◽  
Yingfeng Zuo ◽  
Xianjun Li ◽  
Yiqiang Wu
Keyword(s):  
Lactic Acid ◽  
Solid Phase ◽  
Synthesis And Characterization ◽  
Phase Method ◽  
Solid Phase Method

Research on Electrochemical Properties of LiMnPO4 Synthesized by High Temperature Solid-Phase Method

2012 ◽  
Vol 487 ◽  
pp. 714-718 ◽  
Author(s):  
Sheng Kui Zhong ◽  
Ying Mei Zhang ◽  
Wei Li ◽  
Yue Bin Xu
Keyword(s):  
High Temperature ◽  
Solid Phase ◽  
Raw Materials ◽  
Particle Surface ◽  
Lithium Ion ◽  
Xrd Analysis ◽  
Spherical Particles ◽  
Phase Method ◽  
Solid Phase Method ◽  
Olivine Structure

LiMnPO4cathode material for lithium ion batteries was synthesized by high temperature solid-phase method using MnCO3, Li2CO3, NH4H2PO4as raw materials. The structure of samples was identified by XRD analysis and the particle surface morphology was examined by SEM. The results of XRD showed that the LiMnPO4sample sintered at 700°C for 20h had single ordered olivine structure. The SEM pattern showed that spherical particles distributed uniformly. Respectively, it figured out that the initial charge and discharge capacities of the samples at 0.05C rate were 133.9 and 66.4mAh•g-1.

scholarly journals Effect of Waste Glass Powder on Phase, Microstructure and Mechanical Properties of Mullite Based Porous Ceramics with Coal-series Solid Waste as Raw Materials

2020 ◽  
Author(s):  
Wei Lian ◽  
Yan Liu ◽  
Wenjie Wang ◽  
Yangtao Dong ◽  
Sheng Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Glass Powder ◽  
Solid Phase ◽  
Raw Materials ◽  
Porous Ceramics ◽  
Volume Density ◽  
Synthesis Temperature ◽  
Phase Method ◽  
Microstructure And Mechanical Properties ◽  
Solid Phase Method

Abstract Mullite based porous ceramics were successfully prepared by using a solid-phase method with gangue, slime and sawdust as raw materials. The effects of the content of glass powder and calcining temperature on microstructure and mechanical properties of the samples were systematically studied. It is found that glass powder can prevent the formation of Kyanite and reduce the synthesis temperature of mullite. The samples with 4% glass powder have a large amount of mullite calcined at 1150°C for 3h. Meanwhile, alumina in the sample is completely converted into mullite at 1180°C for 3h. Mullite content reaches 64.2wt%. The minimum apparent porosity is 31.22%, while the maximum volume density and diameter shrinkage are 1.74g/cm 3 and 8.48%, respectively. The ratio of pores of <8μm to those of 8~20μm is varied from 7:2 to 2:7, due to the addition of the glass powder. With increasing content of mullite, the flexural properties of the samples are increased from 7.7MPa to 28.36MPa. Therefore, with solid wastes as the resource, the porous ceramics have a bright prospect.

Preparation and Characterization of Fe Doped Bi2Ga4O9 Ceramics

2014 ◽  
Vol 552 ◽  
pp. 283-285
Author(s):  
Huan Huan Chen ◽  
Xiao Yan Zhang ◽  
Xi Wei Qi ◽  
Zhao Jie Zhou ◽  
Gui Fang Sun
Keyword(s):  
Grain Size ◽  
Solid Phase ◽  
Sem Analysis ◽  
Phase Method ◽  
Second Phase ◽  
Doping Content ◽  
Fe Doping ◽  
Sintering Process ◽  
Solid Phase Method

A series of Fe-doped Bi2(FexGa1-x)4O9 (x=0.1,0.2,0.3,0.4,0.5) ceramics were synthesized by solid-phase method with sintering process. The influences of Fe doping content on phase, morphology, dielectric properties are discussed. XRD results show that there is no second phase in Fe-doped Bi2(FexGa1-x)4O9 ceramics. The SEM analysis indicates the grain size of as-prepared doped samples are relatively uniform and estimated to be about 1–4μm. The permittivity of as-prepared doped samples increases and the dielectric loss decrease compared to pure Bi2Ga4O9 ceramics.

Research on Grafted Chitosan in Heterogeneous System

2011 ◽  
Vol 239-242 ◽  
pp. 3275-3278
Author(s):  
Juan Qin Xue ◽  
Dan Dan Wen ◽  
Wei Bo Mao ◽  
Yun Feng Xue ◽  
Ye Wei Du
Keyword(s):  
Reaction Time ◽  
Solid Phase ◽  
Raw Materials ◽  
Sodium Thiosulfate ◽  
Ammonium Molybdate ◽  
Phase Method ◽  
Cobalt Metal ◽  
Experimental Conditions ◽  
Metallic Salt ◽  
Solid Phase Method

With phthalic anhydride, urea, metallic salt and ammonium molybdate as raw materials, Cobalt metal phthalocyanines is prepared by solid-phase method, and the cobalt metal phthalocyanine is modified by the shun dl-aspartic acid anhydride. In the homogeneous conditions, the effects of the reaction temperature, the reaction time, phthalocyanine dosage and initiator dosage are studied. The experimental results show that the grafting polymerization products with the highest grafted rate can be prepared under the optimal experimental conditions, which are found to be 60°C for the temperature, 3h for the reaction time, 0.08g for the potassium persulfate and sodium thiosulfate. The product is analyzed by means of IR, the results show that the chitosan is grafted successfully, and the reaction may occurs on the amino and the hydroxyl of chitosan.

Synthesis and characterization of fluorescein- and rhodamine-labeled probes for vasotocin receptors

1989 ◽  
Vol 257 (6) ◽  
pp. E804-E808
Author(s):  
A. Buku ◽  
S. Masur ◽  
P. Eggena
Keyword(s):  
Cellular Localization ◽  
Solid Phase ◽  
Arginine Vasotocin ◽  
Epifluorescence Microscopy ◽  
Phase Method ◽  
Toad Urinary Bladder ◽  
Mercaptopropionic Acid ◽  
Solid Phase Method ◽  
Fluorescent Analogues

Fluorescent analogues of vasotocin, [1-(beta-mercaptopropionic acid), 9-(p-aminofluoresceinylphenylalanine)]arginine vasotocin [[MPA1, (p-NH2flu)Phe9]AVT] and [1-(beta'-mercaptopropionic acid), 9-(p-amino rhodaminylphenylalanine)]AVT [[MPA1, (p-NH2rhod)-Phe9]AVT], were synthesized by the solid-phase method. These compounds yielded half-maximal hydrosmotic responses (half-maximal values) in the toad urinary bladder at 2 X 10(-9) M. Epifluorescence microscopy showed punctate basal localization of analogues on the majority of bladder epithelial cells within 20 min. The cellular localization was prevented by vasotocin. These fluorescent analogues may serve as useful probes for vasotocin receptors in toad bladder and in tissues from other species that use vasotocin as their antidiuretic-pressor hormone.

Preparation and Characterization of Fe2O3 Nanoparticles by Solid-Phase Method and Its Hydrogen Peroxide Sensing Properties

2015 ◽  
Vol 4 (3) ◽  
pp. 1069-1077 ◽  
Author(s):  
Chen Hao ◽  
Yuru Shen ◽  
Zhiyuan Wang ◽  
Xiaohong Wang ◽  
Feng Feng ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Solid Phase ◽  
Phase Method ◽  
Fe2o3 Nanoparticles ◽  
Sensing Properties ◽  
Solid Phase Method

Peculiarities of a solid-phase method for the Al-Fe/SiO2 and Al-Co/SiO2 powder catalysts production

2019 ◽  
pp. 63-68
Author(s):  
V.A. Artyukh ◽  
◽  
V.N. Borsch ◽  
V.S. Yusupov ◽  
S.Ya. Zhuk ◽  
...  
Keyword(s):  
Solid Phase ◽  
Phase Method ◽  
Solid Phase Method ◽  
Sio2 Powder

Synthesis and biological activity of new metallocenic angiotensin II analogs

1988 ◽  
Vol 53 (11) ◽  
pp. 2914-2919 ◽  
Author(s):  
Pierrette Maes ◽  
Annie Ricouart ◽  
Emmanuel Escher ◽  
André Tartar ◽  
Christian Sergheraert
Keyword(s):  
Amino Acids ◽  
Biological Activity ◽  
Angiotensin Ii ◽  
Solid Phase ◽  
Rabbit Aorta ◽  
Phase Method ◽  
Solid Phase Method

Analogs of angiotensin II in which phenylalanine in position 8 was replaced with cymantrenylalanine or with its triphenylphosphine photosubstitution product were synthesized by the solid-phase method. On rabbit aorta strips, these peptides were found to be pure antagonists of angiotensin II. Their relative affinities are higher than most other analogs substituted in position 8 with bulky amino-acids.

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