Industrial Technology Research Institute

Hung-Jen Yang

Nan-Kuang Yao

Shaw-Hwa Parng

Jhy-Wen Wu

Mei-Ya Wang

The present invention relates to a gravity-driven fraction separator and method thereof. The gravity-driven fraction separator is substantially a substrate having a microchannel structure arranged thereon, in which the microchannel structure is extending longitudinally on the substrate while sloping with respect to the level of the substrate by a specific angle. As a micro fluidics is being filled in a loading well situated upstream of the microchannel structure, the micro fluidics is driven by gravity to flow downstream in the microchannel structure while filling a plurality of manifolds formed in a area situated downstream of the microchannel structure, so that accurate quantification and separation of the micro fluidics using the plural manifolds, each having a specific length, can be achieved and provided for posterior inspection and analysis.

Gravity-driven fraction separator and method thereof

A microfluidics switch with moving planes has a first substrate with some holes and a second substrate with some micro-channels. Herein, the relative planes of both substrates are covered by a hydrophobic material. Therefore, while the substrates are neighboring and relatively moving, the overlap relation between the holes and the micro-channels are varied and a switch function is provided. Further, by using the hydrophobic material, while the distance between substrates is smaller than the height of drop of each liquid inputted into the holes, the fluids can not fluid between the planes and then different micro-channels are isolated from each other.

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Hsinchu, Taiwan

Hung-Jen Yang