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Stochastic pumping of ions based on colored noise in bacterial channels under acidic stress
dc.contributor.author | López Peris, María Lidón | |
dc.contributor.author | Queralt-Martín, María | |
dc.contributor.author | Alcaraz, Antonio | |
dc.date.accessioned | 2016-10-19T10:54:27Z | |
dc.date.available | 2016-10-19T10:54:27Z | |
dc.date.issued | 2016-06 | |
dc.identifier.citation | LÓPEZ, M. Lidón; QUERALT-MARTÍN, María; ALCARAZ, Antonio. Stochastic pumping of ions based on colored noise in bacterial channels under acidic stress. Nanoscale, 2016, vol. 8, no 27, p. 13422-13428. | ca_CA |
dc.identifier.uri | http://hdl.handle.net/10234/163667 | |
dc.description.abstract | Fluctuation-driven ion transport can be obtained in bacterial channels with the aid of different types of colored noise including the biologically relevant Lorentzian one. Using the electrochemical rectification of the channel current as a ratchet mechanism we observe transport of ions up to their concentration gradient under conditions similar to that met in vivo, namely moderate pH gradients and asymmetrically charged lipid membranes. We find that depending on the direction of the concentration gradient the channel can pump either cations or anions from the diluted side to the concentrated one. We discuss the possible relevance of this phenomenon for the pH homeostasis of bacterial cells | ca_CA |
dc.description.sponsorShip | Financial support from Generalitat Valenciana (project PROMETEO/GV/0069), the Ministry of Economy and Competitiveness of Spain (project no. FIS2013-40473-P), and Universitat Jaume I (project no. P1.1B2015-28) is acknowledged. | ca_CA |
dc.format.extent | 6 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Royal Society of Chemistry | ca_CA |
dc.relation.isPartOf | Nanoscale Volume 8, Issue 27, July 2016 | ca_CA |
dc.rights | © The Royal Society of Chemistry 2016 | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | bacterial cells | ca_CA |
dc.subject | stochastic systems | ca_CA |
dc.subject | white noise | ca_CA |
dc.subject | ions | ca_CA |
dc.title | Stochastic pumping of ions based on colored noise in bacterial channels under acidic stress | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1039/C6NR02638A | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | http://pubs.rsc.org/-/content/articlehtml/2016/nr/c6nr02638a | ca_CA |
dc.type.version | info:eu-repo/semantics/acceptedVersion |
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