Three-dimensional Manipulations of Nanoliter Water-drops on Open Platforms Using Magnetically Controlled Hydrophobic Ferro-drops
نویسندگان
چکیده
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.
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