Colloidal stability of dextran-modified latex particles toward adsorption of concanavalin A

1998 ◽  
Vol 276 (5) ◽  
pp. 427-433 ◽  
Author(s):  
C. S. Chern ◽  
C. K. Lee ◽  
Y. J. Tsai ◽  
C. C. Ho
Keyword(s):  
Concanavalin A ◽  
Colloidal Stability ◽  
Latex Particles

scholarly journals Agglutination study of poly(allyl-α-d-glucopyranose/styrene) latex particles in the presence of Concanavalin A

2005 ◽  
Vol 41 (2-3) ◽  
pp. 203-208 ◽  
Author(s):  
Jung Yul Lee ◽  
In Woo Cheong ◽  
Jung Hyun Kim
Keyword(s):  
Concanavalin A ◽  
Latex Particles

Mechanical Stability Test for Hevea Latex

1950 ◽  
Vol 23 (4) ◽  
pp. 981-994
Author(s):  
H. G. Dawson
Keyword(s):  
High Speed ◽  
Colloidal Stability ◽  
Mechanical Stability ◽  
Stability Test ◽  
Simple Method ◽  
Latex Particles ◽  
Interfacial Film ◽  
Total Solids ◽  
Stability Time

Abstract The mechanical stability test is a rapid, simple method of estimating the colloidal stability or quality of Hevea latex by high-speed stirring. Latex particles start to agglomerate as soon as the peripheral speed of the agitator reaches a certain minimum value. Progressive flocculation continues until mechanical coagulation occurs. The end point is defined as the time in seconds required to coagulate 0.5 to 1.0 per cent of the total solids. If the shear is constant, the time is proportional to the colloidal stability, which depends upon the interfacial film between the latex particles and the serum. The mechanical stability time depends critically on the size, the total solids, and the temperature of sample.

scholarly journals DETECTION OF HBs ANTIGEN WITH LATEX PARTICLES COATED WITH HUMAN ANTIBODY PREPARED BY AFFINITY CHROMATOGRAPHY ON CONCANAVALIN A-SEPHAROSE

1975 ◽  
Vol 28 (5-6) ◽  
pp. 269-277 ◽  
Author(s):  
HIROSHI ISHIYAMA ◽  
JUNICHI YASUDA ◽  
KENJI OKUYAMA ◽  
KAZUSHIGE MASUDA ◽  
HIROYOSHI ITO
Keyword(s):  
Affinity Chromatography ◽  
Concanavalin A ◽  
Human Antibody ◽  
Latex Particles ◽  
Hbs Antigen

scholarly journals THE COMPARATIVE CHARACTERISTIC OF FUNCTIONAL ACTIVITY PERITONAL MACROPHAGES AT IMMUNE DAMAGE OF A LIVER OF CELLULAR AND ANTIBODY GENESIS IN MICE

2009 ◽  
Vol 55 (1) ◽  
pp. 36-42
Author(s):  
T.V. Martynova ◽  
◽  
I.N. Alexeyeva ◽  
Keyword(s):  
Free Radical ◽  
Concanavalin A ◽  
Inflammatory Reaction ◽  
Functional Activity ◽  
Gamma Globulin ◽  
Single Injection ◽  
Peritoneal Macrophages ◽  
Comparative Characteristic ◽  
Dead Cell ◽  
Latex Particles

The aim of present work was to compare the functional activity of peritoneal macrophages (Mf) at T-cellular and antibody in­duced hepatitis in mice of CBA line. T-cellular hepatitis was caused by concanavalin A (ConA), antibody-induced hepatitis was caused by administration of xenogenic anti-liver antibo­dies: gamma-globulin fractions of antihepatocytotoxic serum (g-AHCS). It was found that single injection of ConA or g-AHCS caused damage of liver with cytolytic syndrome through 20 hours. Functional activity of Mf in these conditions was sig­nificantly different. Application of ConA resulted in the decrease in phagocytosis of latex particles and oxygen-dependent me­tabolism; application of g-AHCS - to increase of these processes. Weakening of Mf activity may be one of the reasons for the decrease of dead cell eliminations that results in the maintenance of inflammatory reaction. At the same time significant amplification of phagocytic Mf activity may be one of the path­ways of free radical endogenic sources increase that causes cell alteration and plays its role as mediators at inflammation.

Charging and colloidal stability of electrostatically stabilized latex particles

2004 ◽  
pp. 108-113
Author(s):  
J. Sefcik ◽  
M. Verduyn ◽  
G. Storti ◽  
M. Morbidelli
Keyword(s):  
Colloidal Stability ◽  
Latex Particles

Erythrocytes and latex particles enhance blastogenesis of concanavalin—A stimulated spleen lymphoid cells from copper deficient rats

1990 ◽  
Vol 10 (3) ◽  
pp. 303-314
Author(s):  
Tim R Kramer ◽  
W Thomas Johnson ◽  
Mary Briske-Anderson
Keyword(s):  
Concanavalin A ◽  
Lymphoid Cells ◽  
Latex Particles

Interactions between dextran-modified poly(methyl methacrylate) latex particles and concanavalin A

2001 ◽  
Vol 279 (5) ◽  
pp. 420-426 ◽  
Author(s):  
C.-S. Chern ◽  
C.-K. Lee ◽  
Y.-J. Tsai
Keyword(s):  
Methyl Methacrylate ◽  
Concanavalin A ◽  
Latex Particles ◽  
Poly Methyl Methacrylate

scholarly journals Effect of Water and Salt on the Colloidal Stability of Latex Particles in Ionic Liquid Solutions

2021 ◽  
Vol 6 (1) ◽  
pp. 2
Author(s):  
Dóra Takács ◽  
Matija Tomšič ◽  
Istvan Szilagyi
Keyword(s):  
Ionic Liquid ◽  
Electrostatic Interactions ◽  
Colloidal Stability ◽  
Interfacial Structure ◽  
Surface Layers ◽  
Latex Particles ◽  
Low Concentrations ◽  
Ethylammonium Nitrate ◽  
Liquid Solutions ◽  
Added Salt

The colloidal stability of sulfate (SL) and polyimidazolium-modified sulfate (SL-IP-2) latex particles was studied in an ionic liquid (IL) of ethylammonium nitrate (EAN) and its water mixtures. Aggregation rates were found to vary systematically as a function of the IL-to-water ratio. Repulsive electrostatic interactions between particles dominated at low IL concentrations, while they were significantly screened at intermediate IL concentrations, leading to destabilization of the dispersions. When the IL concentration was further increased, the aggregation of latex particles slowed down due to the increased viscosity and finally, a striking stabilization was observed in the IL-rich regime close to the pure IL solvent. The latter stabilization is due to the formation of IL layers at the interface between particles and IL, which induce repulsive oscillatory forces. The presence of the added salt in the system affected differently the structure of the interfaces around SL and SL-IP-2 particles. The sign of the charge and the composition of the particle surfaces were found to be the most important parameters affecting the colloidal stability. The nature of the counterions also plays an important role in the interfacial properties due to their influence on the structure of the IL surface layers. No evidence was observed for the presence of long-range electrostatic interactions between the particles in pure ILs. The results indicate that the presence of even low concentrations of water and salt in the system (as undesirable impurities) can strongly alter the interfacial structure and thus, the aggregation mechanism in particle IL dispersions.

Impact of Monovalent and Divalent Cations on the Colloidal Stability of Negatively Charged Latex Particles Decorated with Poly(ethylene glycol)

2016 ◽  
Vol 55 (3) ◽  
pp. 606-614 ◽  
Author(s):  
Larissa H. N. Nukui ◽  
Leandro R. S. Barbosa ◽  
Denise F. S. Petri
Keyword(s):  
Ethylene Glycol ◽  
Colloidal Stability ◽  
Divalent Cations ◽  
Poly Ethylene Glycol ◽  
Latex Particles ◽  
Poly Ethylene
Sign in / Sign up

Export Citation Format

Share Document