Maiti, Prabal K. ; Messina, Renee (2008) Counterion distribution and ζ-potential in PAMAM dendrimer Macromolecules, 41 (13). pp. 5002-5006. ISSN 0024-9297
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Official URL: https://pubs.acs.org/doi/abs/10.1021/ma7025435
Related URL: http://dx.doi.org/10.1021/ma7025435
Abstract
Using several hundred nanosecond long fully atomistic molecular dynamics simulations, we investigate the monomer and counterion local concentrations in poly amido amide (PAMAM) dendrimer systems for various generations at neutral pH. We also calculate the ζ potential as a function of dendrimer generation. It is found that the ζ potential increases with dendrimer generation, but slowly at high generation. The ζ potential behavior is remarkably well reproduced when employing Monte Carlo simulations and the Poisson−Boltzmann theory for colloidal particles with size and effective charge of the dendrimer as relevant input parameters from the fully atomistic simulations.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Chemical Society. |
ID Code: | 113300 |
Deposited On: | 24 May 2018 08:21 |
Last Modified: | 24 May 2018 08:21 |
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