Patent ID: 9174211
Filing Date: 2015-11-03
Classification: B01L,Y10T

Abstract:
1. A micro-fluidic device comprising: a substrate; a cavity in the substrate; and a plurality of micro-pillar columns located in the cavity; wherein the plurality of micro-pillar columns is configured to create a capillary action when a fluid sample is provided in the cavity, wherein a micro-fluidic channel is present between two walls of any two adjacent micro-pillars in a same micro-pillar column, wherein each of the two walls comprises a sharp corner along a direction of a propagation path of the fluid sample in the micro-fluidic channel thereby forming a first capillary stop valve, and wherein each micro-pillar column includes a notch located in a sidewall of the cavity, wherein the notch is provided adjacent to a micro-pillar located at one edge of each micro-pillar column, wherein the notch in conjunction with the micro-pillar located at that one edge of each micro-pillar column functions as a second capillary stop valve, and wherein each notch of each adjacent micro-pillar column is located in an opposite sidewall of the cavity.