Patent ID: 9364795
Filing Date: 2016-06-14
CPC Classification: B01D,B01L,G01N

Claim Text:
1. Device for separating and concentrating particles present in a fluid, comprising: a first microchannel, having at least one first aperture; at least one second microchannel, having at least one second aperture, and an end, wherein the first microchannel extends along a line which circumscribes the second microchannel such that the first microchannel surrounds at least part of the second microchannel at said end; the first microchannel and the second microchannel are connected, at said end, by at least one nanochannel, the nanochannel(s) forming a restriction between the first microchannel and the second microchannel, the geometry of which is fixed during a predetermined time period; and a cap bounding the first microchannel, the second microchannel and the nanochannel at said end, the first microchannel and the second microchannel being made in a first substrate, said first aperture and said second aperture opening into a same face of this substrate.