Abstract

This paper presents a nanovalve that uses electrodeposited nanostructures on a solid-state Ag-Ge-Se electrolyte to regulate liquid flow in micro/nano-fluidic channels. The valve uses the extremely rough surface morphology of electrodeposits to manipulate hydrophobicity, thereby closing and opening the nanovalves. Electrodeposited nanostructures can be grown and retracted on the electrolyte surface by applying voltages between 5V and -20V at room temperature. The nanovalve successfully closes and opens de-ionized water (DI) flow in a 20μm tall and 500μm wide microfluidic channel. Closing and opening a single nanovalve takes 5.3 min and 3 min, respectively, with a power consumption of 0.08 mW and 0.17mW, respectively. A triple nanovalve takes 3.8min and 2.5min to close and open, representing a 28% and 17% decrease in valving time as compared to a single nanovalve.

Original languageEnglish (US)
Title of host publicationTechnical Proceedings of the 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009
Pages525-528
Number of pages4
StatePublished - Dec 1 2009
EventNanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling - 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009 - Houston, TX, United States
Duration: May 3 2009May 7 2009

Publication series

NameTechnical Proceedings of the 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009
Volume3

Other

OtherNanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling - 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009
CountryUnited States
CityHouston, TX
Period5/3/095/7/09

Keywords

  • MEMS
  • Nanovalve
  • Solid-state electrolyte

ASJC Scopus subject areas

  • Biotechnology
  • Biomedical Engineering
  • Biomaterials

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