Adsorption and Desorption Studies of Polyadenylic Acid onto Positively Charged Latex Particles

Langmuir ◽  
1995 ◽  
Vol 11 (4) ◽  
pp. 1261-1267 ◽  
Author(s):  
Abdelhamid Elaiessari ◽  
Christian Pichot ◽  
Thierry Delair ◽  
Philippe Cros ◽  
Robin Kuerfurst
Keyword(s):  
Adsorption And Desorption ◽  
Latex Particles ◽  
Polyadenylic Acid ◽  
Positively Charged

Adsorption of oligonucleotides onto negatively and positively charged latex particles

1994 ◽  
Vol 83 (1) ◽  
pp. 25-31 ◽  
Author(s):  
A. Elaissari ◽  
P. Cros ◽  
C. Pichot ◽  
V. Laurent ◽  
B. Mandrand
Keyword(s):  
Latex Particles ◽  
Positively Charged

Preparation and characterization of Ag/AgO nanoshells on carboxylated polystyrene latex particles

2006 ◽  
Vol 21 (2) ◽  
pp. 349-354 ◽  
Author(s):  
Rongwei Zhang ◽  
Dan Zhang ◽  
Hui Mao ◽  
Wenlong Song ◽  
Ge Gao ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Polystyrene Latex ◽  
Infrared Transmission ◽  
X Ray Diffraction ◽  
Latex Particles ◽  
Transmission Electron ◽  
Polystyrene Latex Particles ◽  
Subsequent Decomposition ◽  
Positively Charged

Smooth and uniform Ag/AgO nanoshells (about 3–4 nm) on carboxylated polystyrene latex particles were prepared by electrostatic attraction between negatively charged –COO− on the surface of carboxylated polystyrene latex particles and positively charged Ag(NH3)2+ in the solution, and subsequent decomposition of the silver complex. The resultant nanoparticles were characterized with Fourier transform infrared, transmission electron microscopy, scanning electron microscopy, and x-ray diffraction. The effects of reducing agents, the amount of NaOH and temperature on the morphology of hybrid latex particles were discussed.

Human Fibrinogen Adsorption on Positively Charged Latex Particles

Langmuir ◽  
2014 ◽  
Vol 30 (37) ◽  
pp. 11165-11174 ◽  
Author(s):  
Paulina Żeliszewska ◽  
Anna Bratek-Skicki ◽  
Zbigniew Adamczyk ◽  
Michał Cieśla
Keyword(s):  
Human Fibrinogen ◽  
Latex Particles ◽  
Positively Charged ◽  
Fibrinogen Adsorption

Protamine-DNA interaction

1978 ◽  
Vol 36 (2) ◽  
pp. 200-201
Author(s):  
D.P. Bazett-Jones ◽  
F.P. Ottensmeyer
Keyword(s):  
Small Volume ◽  
Double Helix ◽  
Dna Interaction ◽  
Dark Field ◽  
Sperm Head ◽  
Nuclear Proteins ◽  
Field Electron Microscopy ◽  
Dark Field Electron ◽  
Dna Double Helix ◽  
Positively Charged

Dark field electron microscopy has been used for the study of the structure of individual macromolecules with a resolution to at least the 5Å level. The use of this technique has been extended to the investigation of structure of interacting molecules, particularly the interaction between DNA and fish protamine, a class of basic nuclear proteins of molecular weight 4,000 daltons.Protamine, which is synthesized during spermatogenesis, binds to chromatin, displaces the somatic histones and wraps up the DNA to fit into the small volume of the sperm head. It has been proposed that protamine, existing as an extended polypeptide, winds around the minor groove of the DNA double helix, with protamine's positively-charged arginines lining up with the negatively-charged phosphates of DNA. However, viewing protamine as an extended protein is inconsistent with the results obtained in our laboratory.

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