Patent ID: 9636675
Date: 2017-05-02
CPC Classifications: B01L,B03B,B81B,B81C,B82B,G01N,G03F

Claim:
1. An apparatus comprising: an inlet configured to receive a fluid; an outlet configured to exit the fluid; and a nanopillar array connected to the inlet and the outlet, the nanopillar array configured to allow the fluid to flow from the inlet to the outlet; wherein the nanopillar array includes nanopillars arranged to separate entities by size; wherein the nanopillars are arranged to have a gap separating one nanopillar from another nanopillar; wherein the gap is constructed to be in a nanoscale range; wherein the nanopillar array comprises an oxide layer applied on the nanopillars, the oxide layer causing the gap to be uniform along a vertical axis of the one nanopillar and the another nanopillar; and wherein the oxide layer causes unevenness in a diameter of the nanopillars to be uniform, resulting in the gap being uniform along the vertical axis of the one nanopillar and the another nanopillar.