ENHANCED DIFFUSIOOSMOSIS AND THERMOOSMOSIS IN POLYELECTROLYTE-BRUSH-FUNCTIONALIZED NANOCHANNELS

Simple item page
dc.contributor.advisorDas, Siddharthaen_US
dc.contributor.authorMaheedhara, Rajaen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2018-09-13T05:33:19Z
dc.date.available2018-09-13T05:33:19Z
dc.date.issued2018en_US
dc.description.abstractOne of the holy grails of nanofluidic systems is to ensure significant flow rates without applying a large pressure gradient. This has motivated researchers to study different mechanisms of liquid transport in nanochannels involving physical effects that exploit the large surface-to-volume ratio of such nanochannels. This thesis will focus on two highly efficient non-pressure-driven flow mechanisms in nanochannels functionalized by grafting the inner walls of nanochannels with end-charged polyelectrolyte (PE) brushes. We study two mechanisms to achieve flow augmentation: (i) ionic diffusioosmosis (IDO), triggered by the application of an external concentration gradient, and (ii) ionic thermoosmosis (ITO), triggered by a temperature gradient. We find a non-intuitive scenario where the flow in nanochannels can be significantly augmented by grafting the nanochannels with PE brushes. Given the difficulty in attaining a desirable flow strength in nanochannels, we anticipate that this thesis will serve as an important milestone in the area of nanofluidics.en_US
dc.identifierhttps://doi.org/10.13016/M2ZW18W52
dc.identifier.urihttp://hdl.handle.net/1903/21326
dc.language.isoenen_US
dc.subject.pqcontrolledFluid mechanicsen_US
dc.subject.pqcontrolledNanoscienceen_US
dc.subject.pquncontrolledDiffusioosmosisen_US
dc.subject.pquncontrolledEnhancementen_US
dc.subject.pquncontrolledNanochannelsen_US
dc.subject.pquncontrolledPolyelectrolyteen_US
dc.subject.pquncontrolledPolymeren_US
dc.subject.pquncontrolledThermoosmosisen_US
dc.titleENHANCED DIFFUSIOOSMOSIS AND THERMOOSMOSIS IN POLYELECTROLYTE-BRUSH-FUNCTIONALIZED NANOCHANNELSen_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Maheedhara_umd_0117N_19278.pdf
Size:
5.66 MB
Format:
Adobe Portable Document Format
Download

Collections

UMD Theses and Dissertations
Mechanical Engineering Theses and Dissertations