Atomistic study of a nanometer-scale pump based on the thermal ratchet concept

Elton Oyarzua, J. H. Walther, Harvey Zambrano

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In this study, a novel concept of nanoscale pump fabricated using Carbon Nanotubes (CNTs) is presented. The development of nanofluidic systems provides unprecedented possibilities for the control of biology and chemistry at the molecular level with potential applications in low energy cost devices, novel medicaltools, and a new generation of sensors. CNTs offer a number of attractive features for the fabrication of fluidic nanodevices including fast flow, useful electronic and thermal properties, high mechanical strength and biocompatibility. Therefore, the transport of liquids in CNTs is now of great interest in nanofluidics. Thermophoresisis the phenomenon observed when a mixture of two or more types of motile objects experience a force induced by a thermal gradient and the different types of objects respond to it differently, inducing a motion and segregation of the objects. Using molecular dynamics simulations, we explore the possibility to design thermophoretic pumping devices fabricated of CNTs for water transport in nanoconduits. The design of the nanopumps is based on the concept of the Feynman-Smoluchowski ratchet.
Original languageEnglish
Publication date2015
Number of pages1
Publication statusPublished - 2015
Event 68th Annual Meeting of the American Physical Society's Division of Fluid Dynamics (DFD) - Boston, United States
Duration: 22 Nov 201524 Nov 2015


Conference 68th Annual Meeting of the American Physical Society's Division of Fluid Dynamics (DFD)
CountryUnited States
Internet address

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