Patent ID: 7094345
Filing Date: 2006-08-22
Classification: B01D,B01L,C02F,C30B,G01N,Y10S,Y10T

Abstract:
1. A microfluidic system, comprising: a first microchannel formed in a substrate; a first communication port coupling the first microchannel to a surface of the substrate; and a capping module forming a chamber and having a matrix having an affinity for selected molecules disposed in the chamber and a trapping filter forming a sidewall of the chamber for compartmentalizing the matrix on the capping module, wherein the trapping filter includes a semipermeable membrane that is permeable to fluids and impermeable to the matrix, wherein the capping module is adapted to be stacked on the substrate and placed in communication with the first microchannel, the capping module further comprising a first connector port extending through the semipermeable membrane for placing the chamber in fluid communication with the first communication port, and a second connector port extending through the semipermeable membrane for connecting the chamber in fluid communication with a second communication port that couples a second microchannel to a surface of the substrate, thereby forming a fluid path between the first microchannel and the second microchannel.