Simulations of latex particles immersed in dendrimer solutions.
(2009) In Langmuir 25(11). p.61066112 Abstract
 In this work, we present Monte Carlo simulations of mixtures containing negatively charged latex particles and positively charged dendrimers. We focus on the interaction between two latex particles as salt concentration, dendrimer dose, and generation number are varied. Interaction free energies and corresponding stability ratios are calculated. Minimal stability is found near the isoelectric point, i.e., where the amount of adsorbed dendrimer charge matches the charge of the latex particles. Away from the isoelectric point, the stability increases as the latex particles get more and more under or overcompensated, an increase that is more steep on the overcompensated side. Increasing the dendrimer generation leads to a more "patchy"... (More)
 In this work, we present Monte Carlo simulations of mixtures containing negatively charged latex particles and positively charged dendrimers. We focus on the interaction between two latex particles as salt concentration, dendrimer dose, and generation number are varied. Interaction free energies and corresponding stability ratios are calculated. Minimal stability is found near the isoelectric point, i.e., where the amount of adsorbed dendrimer charge matches the charge of the latex particles. Away from the isoelectric point, the stability increases as the latex particles get more and more under or overcompensated, an increase that is more steep on the overcompensated side. Increasing the dendrimer generation leads to a more "patchy" surface. This heterogeneity is particularly relevant close to the isoelectric point. Given the relative simplicity of the model, the simulation results are in surprisingly good agreement with the experimental data. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/record/1412044
 author
 Trulsson, Martin ^{LU} ; Forsman, Jan ^{LU} ; Åkesson, Torbjörn ^{LU} and Jönsson, Bo ^{LU}
 organization
 publishing date
 2009
 type
 Contribution to journal
 publication status
 published
 subject
 in
 Langmuir
 volume
 25
 issue
 11
 pages
 6106  6112
 publisher
 The American Chemical Society
 external identifiers

 wos:000266604000019
 pmid:19466775
 scopus:66749146672
 ISSN
 07437463
 DOI
 10.1021/la900102r
 language
 English
 LU publication?
 yes
 id
 ba4d5d86c670436cabec77515e5f99a2 (old id 1412044)
 date added to LUP
 20090611 08:58:10
 date last changed
 20170101 05:18:23
@article{ba4d5d86c670436cabec77515e5f99a2, abstract = {In this work, we present Monte Carlo simulations of mixtures containing negatively charged latex particles and positively charged dendrimers. We focus on the interaction between two latex particles as salt concentration, dendrimer dose, and generation number are varied. Interaction free energies and corresponding stability ratios are calculated. Minimal stability is found near the isoelectric point, i.e., where the amount of adsorbed dendrimer charge matches the charge of the latex particles. Away from the isoelectric point, the stability increases as the latex particles get more and more under or overcompensated, an increase that is more steep on the overcompensated side. Increasing the dendrimer generation leads to a more "patchy" surface. This heterogeneity is particularly relevant close to the isoelectric point. Given the relative simplicity of the model, the simulation results are in surprisingly good agreement with the experimental data.}, author = {Trulsson, Martin and Forsman, Jan and Åkesson, Torbjörn and Jönsson, Bo}, issn = {07437463}, language = {eng}, number = {11}, pages = {61066112}, publisher = {The American Chemical Society}, series = {Langmuir}, title = {Simulations of latex particles immersed in dendrimer solutions.}, url = {http://dx.doi.org/10.1021/la900102r}, volume = {25}, year = {2009}, }