Simulations of latex particles immersed in dendrimer solutions.
(2009) In Langmuir 25(11). p.6106-6112- 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:
https://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 (ACS)
- external identifiers
-
- wos:000266604000019
- pmid:19466775
- scopus:66749146672
- pmid:19466775
- ISSN
- 0743-7463
- DOI
- 10.1021/la900102r
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Theoretical Chemistry (S) (011001039)
- id
- ba4d5d86-c670-436c-abec-77515e5f99a2 (old id 1412044)
- date added to LUP
- 2016-04-01 12:37:16
- date last changed
- 2023-03-18 21:42:52
@article{ba4d5d86-c670-436c-abec-77515e5f99a2, 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 = {{0743-7463}}, language = {{eng}}, number = {{11}}, pages = {{6106--6112}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Langmuir}}, title = {{Simulations of latex particles immersed in dendrimer solutions.}}, url = {{http://dx.doi.org/10.1021/la900102r}}, doi = {{10.1021/la900102r}}, volume = {{25}}, year = {{2009}}, }