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Liquid capillary micro/nanojets in free-jet expansion

  • Alfonso M. Gañán-Calvo
  • , Daniel P. DePonte
  • , Miguel A. Herrada
  • , John Spence
  • , Uwe Weierstall
  • , R. Bruce Doak

Research output: Contribution to journalArticlepeer-review

Abstract

A capillary steady microjet produced at the discharge region of a gas jet expanding into vacuum is imaged using scanning electron microscopy. The co-flowing gas focuses by inertia and pulls the liquid fed through a capillary tube concentrically positioned at the discharge orifice. The jet breaks up into well-collimated droplets. Numerical simulation explains the persistence of the liquid phase after discharge into vacuum.

Original languageEnglish (US)
Pages (from-to)822-824
Number of pages3
JournalSmall
Volume6
Issue number7
DOIs
StatePublished - Apr 9 2010

Keywords

  • Capillary jets
  • Gas expansion
  • Microfluidics
  • Nanofluidics

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • General Chemistry
  • General Materials Science

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