Three-dimensional manipulations of nanoliter water-drops on open platforms using magnetically controlled hydrophobic ferro-drops

Kai Zhang, Qionglin Liang, Guoan Luo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Here we present a novel and extremely simple method that can manipulate magnetic label-free nanoliter water-drops using
micro-nanoliter magnetically controlled hydrophobic ferro-drops used as magnetic mediators. Water-drops and ferro-drops
can be dynamically connected under interface force of water/oil, allowing water-drops to be rapidly motioned on threedimensional
open platforms and transferred through space like micro-pipette. Each generated water-drop can be selectively
encapsulated with a drop of mineral oil for preventing evaporation and then completely transferred to surfaces of water-phase,
oil-phase and solid-phase without any liquid residue due to magnetic repulsion.
Original languageEnglish (US)
Title of host publication16th International Conference on Miniaturized Systems for Chemistry and Life Sciences
StatePublished - 2012

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