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Condensation and Demixing in Solutions of DNA Nanostars and Their Mixtures
[Image: see text] We present a numerical/theoretical approach to efficiently evaluate the phase diagram of self-assembling DNA nanostars. Combining input information based on a realistic coarse-grained DNA potential with the Wertheim association theory, we derive a parameter-free thermodynamic descr...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American
Chemical Society
2017
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5333195/ https://www.ncbi.nlm.nih.gov/pubmed/28157331 http://dx.doi.org/10.1021/acsnano.6b08287 |
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author | Locatelli, Emanuele Handle, Philip H. Likos, Christos N. Sciortino, Francesco Rovigatti, Lorenzo |
author_facet | Locatelli, Emanuele Handle, Philip H. Likos, Christos N. Sciortino, Francesco Rovigatti, Lorenzo |
author_sort | Locatelli, Emanuele |
collection | PubMed |
description | [Image: see text] We present a numerical/theoretical approach to efficiently evaluate the phase diagram of self-assembling DNA nanostars. Combining input information based on a realistic coarse-grained DNA potential with the Wertheim association theory, we derive a parameter-free thermodynamic description of these systems. We apply this method to investigate the phase behavior of single components and mixtures of DNA nanostars with different numbers of sticky arms, elucidating the role of the system functionality and of salt concentration. Specifically, we evaluate the propensity to demix, the gas–liquid phase boundaries and the location of the critical points. The predicted critical parameters compare very well with existing experimental results for the available compositions. The approach developed here is very general, easily extensible to other all-DNA systems, and provides guidance for future experiments. |
format | Online Article Text |
id | pubmed-5333195 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American
Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-53331952017-03-03 Condensation and Demixing in Solutions of DNA Nanostars and Their Mixtures Locatelli, Emanuele Handle, Philip H. Likos, Christos N. Sciortino, Francesco Rovigatti, Lorenzo ACS Nano [Image: see text] We present a numerical/theoretical approach to efficiently evaluate the phase diagram of self-assembling DNA nanostars. Combining input information based on a realistic coarse-grained DNA potential with the Wertheim association theory, we derive a parameter-free thermodynamic description of these systems. We apply this method to investigate the phase behavior of single components and mixtures of DNA nanostars with different numbers of sticky arms, elucidating the role of the system functionality and of salt concentration. Specifically, we evaluate the propensity to demix, the gas–liquid phase boundaries and the location of the critical points. The predicted critical parameters compare very well with existing experimental results for the available compositions. The approach developed here is very general, easily extensible to other all-DNA systems, and provides guidance for future experiments. American Chemical Society 2017-02-03 2017-02-28 /pmc/articles/PMC5333195/ /pubmed/28157331 http://dx.doi.org/10.1021/acsnano.6b08287 Text en Copyright © 2017 American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
spellingShingle | Locatelli, Emanuele Handle, Philip H. Likos, Christos N. Sciortino, Francesco Rovigatti, Lorenzo Condensation and Demixing in Solutions of DNA Nanostars and Their Mixtures |
title | Condensation
and Demixing in Solutions of DNA Nanostars
and Their Mixtures |
title_full | Condensation
and Demixing in Solutions of DNA Nanostars
and Their Mixtures |
title_fullStr | Condensation
and Demixing in Solutions of DNA Nanostars
and Their Mixtures |
title_full_unstemmed | Condensation
and Demixing in Solutions of DNA Nanostars
and Their Mixtures |
title_short | Condensation
and Demixing in Solutions of DNA Nanostars
and Their Mixtures |
title_sort | condensation
and demixing in solutions of dna nanostars
and their mixtures |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5333195/ https://www.ncbi.nlm.nih.gov/pubmed/28157331 http://dx.doi.org/10.1021/acsnano.6b08287 |
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