micro filter Micro-engineered filters were designed and fabricated with different shape, size and density of the holes. The micro holes are highly regular distributed with high precision size definition allowing filtration with high throughput. Main features Highly transparent Low background fluorescence High precision holes arrays Biocompatible Easy for manipulation with ring Configurations Cylindrical holes Conical holes Funnel holes specifications Filter size13mmArea with holes9mmThickness20umHole shapeCylindrical/Conical/FunnelHole size5-20umHole numbers 2*105