Mineralization of calcite ribbons on an Allium fistulosum L. bulb inner membrane in an ethanol–water mixed solvent under control of polyacrylic acid by a double diffusion method

CrystEngComm ◽  
2010 ◽  
Vol 12 (11) ◽  
pp. 3593 ◽  
Author(s):  
Lei Liu ◽  
Bo Hu ◽  
Shao-Feng Chen ◽  
Shu-Juan Liu ◽  
Jun Jiang ◽  
...  
Keyword(s):  
Polyacrylic Acid ◽  
Mixed Solvent ◽  
Double Diffusion ◽  
Diffusion Method ◽  
Allium Fistulosum ◽  
Inner Membrane

Preparation of Nano-CaCO3/Fast-Growing Poplar Composite by the Diffusion Method

2012 ◽  
Vol 184-185 ◽  
pp. 1129-1133
Author(s):  
Zhen Jia ◽  
Guo Liang Li ◽  
Jian Li ◽  
Cheng Yu Wang ◽  
Zhi Jun Zhang
Keyword(s):  
Double Diffusion ◽  
Wood Properties ◽  
Diffusion Method ◽  
Vacuum Impregnation ◽  
Gap Filling ◽  
Characterization Methods ◽  
Performance Indexes ◽  
Sample Characterization ◽  
And Performance ◽  
Filling Mechanism

This paper introduced gap filling mechanism of wood and inorganic composite and used the mechanism to optimize the wood properties of poplar. Through double diffusion method of the vacuum impregnation, CaCO3 and poplar composite was prepared. Using Sample characterization methods and performance indexes, prepared wood inorganic nanometer composite (WINC) was with hydrophobic and higher hardness.

scholarly journals Studies of Human Erythrocyte Catalase by Fluorescent Antibody Technic The Distribution of Catalase in Acatalasia and Hypocatalasia

Blood ◽  
1969 ◽  
Vol 34 (1) ◽  
pp. 25-31
Author(s):  
TAKEMITSU HOSOI ◽  
SEIJI YAHARA ◽  
HOWARD B. HAMILTON ◽  
NORIO FUJIKI ◽  
TERUO SASAKI ◽  
...  
Keyword(s):  
Red Blood Cells ◽  
Human Erythrocyte ◽  
Blood Cells ◽  
Fluorescent Antibody ◽  
Double Diffusion ◽  
Human Erythrocytes ◽  
Red Cells ◽  
Diffusion Method ◽  
Cellular Distribution ◽  
Erythrocyte Catalase

Abstract In order to investigate the cellular distribution of catalase in normal, hypocatalasic and acatalasic red blood cells, the fluorescent antibody labelling technic was employed. Sensitive anticatalase sera were produced in rabbits by immunization with purified catalase extracted from human erythrocytes. Specificity against human erythrocyte catalase was confirmed by Ouchterlony’s double diffusion method. The distribution of catalase is fairly homogeneous in normal and hypocatalasic red cells, but in acatalasic cells fluorescence due to the presence of catalase was not observed. By this method the amount of catalase in hypocatalasic red cells was judged to be between that of normal and acatalasic red cells.

Application of Serum Alpha Feto-Protein Assay in Mass Survey of Primary Carcinoma of Liver

1974 ◽  
Vol 02 (03) ◽  
pp. 241-245 ◽  
Author(s):  
The Co-ordinating Group For The Res
Keyword(s):  
Liver Cancer ◽  
Early Detection ◽  
Primary Liver Cancer ◽  
Double Diffusion ◽  
Primary Carcinoma ◽  
Diffusion Method ◽  
Mass Survey ◽  
Protein Assay ◽  
Alpha Feto Protein ◽  
Counter Current

The results of AFP screening by Ouchterlony double diffusion method and counter current electrophoresis in 343,999 persons for mass survey of primary liver cancer are presented. Through the observation that while AFP was positive, the results of other examinations were largely negative, and the appearance of obvious signs was found later than AFP screening, it is suggested that AFP screening has some significance in early detection of primary liver cancer. In endemic areas of primary liver cancer, repeated AFP screenings are recommended.

Regression of Sarcoma-180 after cis-Dichlorodiammineplatinum (II) : A Fine Structural Study

1972 ◽  
Vol 30 ◽  
pp. 68-69
Author(s):  
Ajit Sodhi
Keyword(s):  
Immune System ◽  
Plasma Cells ◽  
Tumor Regression ◽  
Morphological Changes ◽  
Double Diffusion ◽  
Cellular Level ◽  
Diffusion Method ◽  
Sarcoma 180 ◽  
Before And After ◽  
And Control

Sarcoma-180, a transplantable tumor in Swiss White mice regresses completely after a single intraperitoneal injection of cis-Dichlorodiammineplatinum (II). Fine structural studies before and after cis (Pt (NH3)2C12) treatment show certain morphological changes indicative of possible mechanisms involved in the tumor regression. The mitotic activity of tumor cells is inhibited soon after platinum injection possibly due to its interaction with DNA. Appearance of plasma cells (Fig. 1) and lymphocytes within the tumor mass after a 4-6 days period of platinum treatment indicates a possible enhancement of the immune system. The plasma cells display a well developed RER and a typical nuclear morphology. Further studies on spleen of both treated and control animals show an increase in the number of plasma cells after about 5 days of platinum treatment (Fig. 2).The increase in the lymphocytes and the plasma cells indicates an immune system at the cellular level as these antibody producing cells directly come in contact with the Sarcoma-180 cells. Also the double diffusion method on agar plates indicates the enhanced humoral antibody production against Sarcoma-180 as opposed to the controls.

Synthesis of Nano Calcium Phosphate via Biomimetic Method for Bone Tissue Engineering Scaffolds and Investigation of its Phase Transformation in Simulated Body Fluid

2013 ◽  
Vol 587 ◽  
pp. 86-92 ◽  
Author(s):  
Majid Raz ◽  
F. Moztarzadeh ◽  
Mohammad A. Shokrgozar ◽  
M. Tahriri
Keyword(s):  
Phase Transformation ◽  
Calcium Phosphate ◽  
Simulated Body Fluid ◽  
Body Fluid ◽  
Double Diffusion ◽  
Dicalcium Phosphate ◽  
Diffusion Method ◽  
Tissue Engineering Scaffolds ◽  
Hydroxy Apatite ◽  
Hydrogel Matrix

In this study the formation of calcium phosphate phase via double diffusion method into a hydrogel matrix was investigated and its phase transformation in simulated body fluid was studied. White precipitate was formed within the hydrogel, due to the diffusion of calcium and phosphate ions through the hydrogel matrix in similar pH to human body. Phase composition, microstructure and structural groups in the composite samples were also characterized by X-Ray Diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infra-red (FTIR) analyses. Microstructure of precipitates formed within middle hydrogel, showed that detected materials are composed of carbonated hydroxyapatite and dicalcium phosphate dihydrate (DCPD, brushite). The particle size was about 10 nm .Analysis results showed that after incubation in simulated body fluid, dicalcium phosphate dehydrate phase transformed into crystalline hydroxy apatite.

DEMONSTRATION OF THYROGLOBULIN IN LYMPH VESSELS OF TSH STIMULATED GUINEA PIGS BY THE INDIRECT IMMUNOFLUORESCENCE TECHNIQUE

1973 ◽  
Vol 74 (4) ◽  
pp. 666-674 ◽  
Author(s):  
W. Böcker ◽  
H. Lietz
Keyword(s):  
Guinea Pig ◽  
Guinea Pigs ◽  
Polyacrylamide Gel Electrophoresis ◽  
Gel Filtration ◽  
Double Diffusion ◽  
Diffusion Method ◽  
Second Step ◽  
Fluorescence Staining ◽  
Lymph Vessels ◽  
Indirect Immunofluorescence Technique

ABSTRACT The presence of thyroglobulin in intra- and extrathyroidal lymph vessels of TSH-stimulated guinea pigs was demonstrated immunohistochemically. Guinea pig thyroglobulin was purified by gel filtration on Sephadex G-200 and tested by the double diffusion method and by polyacrylamide gel electrophoresis. Antibodies to guinea pig thyroglobulin were obtained in rabbits by immunisation of the animals with this antigen. Indirect fluorescence staining was performed on formol fixed paraffin embedded tissue with rabbit anti-guinea pig thyroglobulin serum in the first step and fluorescein-labelled antirabbit IgG from the goat in the second step of the incubation process.

scholarly journals NEW APPROACHES FOR THE LABORATORY RECOGNITION OF M TYPES OF GROUP A STREPTOCOCCI

1971 ◽  
Vol 134 (5) ◽  
pp. 1298-1315 ◽  
Author(s):  
Jiri Rotta ◽  
Richard M. Krause ◽  
Rebecca C. Lancefield ◽  
William Everly ◽  
Henry Lackland
Keyword(s):  
Double Diffusion ◽  
Specific Protein ◽  
Diffusion Method ◽  
Group A Streptococci ◽  
Protein Antigens ◽  
Agar Gel ◽  
Group A ◽  
Complete Series ◽  
Specific Reactions

The successful classification of Group A streptococci by the capillary precipitin technique requires a complete series of M type antisera which are sufficiently potent and specific to give unequivocal type-specific reactions with all the serotypes. Specific antisera for this purpose have been prepared by absorption with heterologous streptococci. Unabsorbed antisera have been employed here in the Ouchterlony double-diffusion agar-gel test to identify the M type of streptococci. Techniques have been developed for making this method of M typing fully reliable. The results reported here confirm and amplify the original findings of Michael and Massell (3). With crude HCl extracts and unabsorbed M type antisera, a precipitin line due to the M protein and another to the group-specific carbohydrate are the two major reactions observed. These reactions, however, are usually readily distinguishable. There was a surprising lack of cross-reactive precipitin lines due to non-type-specific protein antigens in the extracts. Although many of the unabsorbed M type antisera can be employed in the double-diffusion tests, the group-specific antibody must be removed from some of the unabsorbed antisera to avoid confusing cross-reactions. Absorption of these antibodies has been achieved by means of a specific immunoabsorbent column prepared from para-aminophenyl-ß-N-acetylglucosamine and cyanogen bromide-activated Sepharose. Excellent agreement was observed between the M typing results obtained on 117 field strains by the conventional capillary precipitin method and the Ouchterlony double-diffusion method.

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