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

26 Scopus citations


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
Issue number7
StatePublished - Apr 9 2010


  • Capillary jets
  • Gas expansion
  • Microfluidics
  • Nanofluidics

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)


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