Cargando…
Joule Heating Effects on Transport-Induced-Charge Phenomena in an Ultrathin Nanopore
Transport-induced-charge (TIC) phenomena, in which the concentration imbalance between cations and anions occurs when more than two chemical potential gradients coexist within an ultrathin dimension, entail numerous nanofluidic systems. Evidence has indicated that the presence of TIC produces a nonl...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7761093/ https://www.ncbi.nlm.nih.gov/pubmed/33256113 http://dx.doi.org/10.3390/mi11121041 |
_version_ | 1783627487522062336 |
---|---|
author | Wang, Zhixuan Hsu, Wei-Lun Tsuchiya, Shuntaro Paul, Soumyadeep Alizadeh, Amer Daiguji, Hirofumi |
author_facet | Wang, Zhixuan Hsu, Wei-Lun Tsuchiya, Shuntaro Paul, Soumyadeep Alizadeh, Amer Daiguji, Hirofumi |
author_sort | Wang, Zhixuan |
collection | PubMed |
description | Transport-induced-charge (TIC) phenomena, in which the concentration imbalance between cations and anions occurs when more than two chemical potential gradients coexist within an ultrathin dimension, entail numerous nanofluidic systems. Evidence has indicated that the presence of TIC produces a nonlinear response of electroosmotic flow to the applied voltage, resulting in complex fluid behavior. In this study, we theoretically investigate thermal effects due to Joule heating on TIC phenomena in an ultrathin nanopore by computational fluid dynamics simulation. Our modeling results show that the rise of local temperature inside the nanopore significantly enhances TIC effects and thus has a significant influence on electroosmotic behavior. A local maximum of the solution conductivity occurs near the entrance of the nanopore at the high salt concentration end, resulting in a reversal of TIC across the nanopore. The Joule heating effects increase the reversal of TIC with the synergy of the negatively charged nanopore, and they also enhance the electroosmotic flow regardless of whether the nanopore is charged. These theoretical observations will improve our knowledge of nonclassical electrokinetic phenomena for flow control in nanopore systems. |
format | Online Article Text |
id | pubmed-7761093 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-77610932020-12-26 Joule Heating Effects on Transport-Induced-Charge Phenomena in an Ultrathin Nanopore Wang, Zhixuan Hsu, Wei-Lun Tsuchiya, Shuntaro Paul, Soumyadeep Alizadeh, Amer Daiguji, Hirofumi Micromachines (Basel) Article Transport-induced-charge (TIC) phenomena, in which the concentration imbalance between cations and anions occurs when more than two chemical potential gradients coexist within an ultrathin dimension, entail numerous nanofluidic systems. Evidence has indicated that the presence of TIC produces a nonlinear response of electroosmotic flow to the applied voltage, resulting in complex fluid behavior. In this study, we theoretically investigate thermal effects due to Joule heating on TIC phenomena in an ultrathin nanopore by computational fluid dynamics simulation. Our modeling results show that the rise of local temperature inside the nanopore significantly enhances TIC effects and thus has a significant influence on electroosmotic behavior. A local maximum of the solution conductivity occurs near the entrance of the nanopore at the high salt concentration end, resulting in a reversal of TIC across the nanopore. The Joule heating effects increase the reversal of TIC with the synergy of the negatively charged nanopore, and they also enhance the electroosmotic flow regardless of whether the nanopore is charged. These theoretical observations will improve our knowledge of nonclassical electrokinetic phenomena for flow control in nanopore systems. MDPI 2020-11-26 /pmc/articles/PMC7761093/ /pubmed/33256113 http://dx.doi.org/10.3390/mi11121041 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Wang, Zhixuan Hsu, Wei-Lun Tsuchiya, Shuntaro Paul, Soumyadeep Alizadeh, Amer Daiguji, Hirofumi Joule Heating Effects on Transport-Induced-Charge Phenomena in an Ultrathin Nanopore |
title | Joule Heating Effects on Transport-Induced-Charge Phenomena in an Ultrathin Nanopore |
title_full | Joule Heating Effects on Transport-Induced-Charge Phenomena in an Ultrathin Nanopore |
title_fullStr | Joule Heating Effects on Transport-Induced-Charge Phenomena in an Ultrathin Nanopore |
title_full_unstemmed | Joule Heating Effects on Transport-Induced-Charge Phenomena in an Ultrathin Nanopore |
title_short | Joule Heating Effects on Transport-Induced-Charge Phenomena in an Ultrathin Nanopore |
title_sort | joule heating effects on transport-induced-charge phenomena in an ultrathin nanopore |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7761093/ https://www.ncbi.nlm.nih.gov/pubmed/33256113 http://dx.doi.org/10.3390/mi11121041 |
work_keys_str_mv | AT wangzhixuan jouleheatingeffectsontransportinducedchargephenomenainanultrathinnanopore AT hsuweilun jouleheatingeffectsontransportinducedchargephenomenainanultrathinnanopore AT tsuchiyashuntaro jouleheatingeffectsontransportinducedchargephenomenainanultrathinnanopore AT paulsoumyadeep jouleheatingeffectsontransportinducedchargephenomenainanultrathinnanopore AT alizadehamer jouleheatingeffectsontransportinducedchargephenomenainanultrathinnanopore AT daigujihirofumi jouleheatingeffectsontransportinducedchargephenomenainanultrathinnanopore |