This article presents an innovative new type of micro-fluidic chips; the marangoni effect is used as the driving force of the fluidics, while the fluidics is confined in ”Surface tension-confined micro-fluidics” chips for regularly transportation. "Surface tension-confined micro-fluidics” is an open structure micro-fluidic chip, there is no micro-channels, only hydrophobic and hydrophilic coating patterns on the chips to confined fluidic flow. Normally the fluidics is driven by surface tension force, since there is no micro-channels structure, there is no way to use conventional pumps. In this study we propose a initiative driving force source that can be applied in "Surface tension-confined micro-fluidics " chips；low surface energy surfactants (such as alcohol) after atomization is sprayed on local area of the fluidics so that the fluidics surface can render surface energy gradient, according to the marangoni effect liquids with higher surface energy will attract liquids from lower surface energy area and generate fluidic flow, while the fluidic flow is confined along the hydrophilic pattern channel, with carefully designed patterns one can control the fluidic flow to a designed location. The surfactants spraying nozzle can be moved to any position so that one can easily control the fluidic flow just by simply move the spraying nozzle along the pattern channel. If one want to separate the fluidic flow in to two parts, just move the spraying nozzle to the middle area of the fluidic flow, it will be cut into two parts. By reciprocating oscillate the spraying nozzle one can disturb the fluidics and enhance the mixing efficiency.

This innovative micro-fluidic chip has the following advantages: the process is simple, low cost, easy to integrate and it is easy to use.