Patent ID: 7901897

Claim:
A method of detecting one or more target DNA molecules, comprising: (a) providing a tray having multiple wells, each of the wells containing a solution of different DNA molecules; (b) providing multiple projections extending from a substrate, wherein each projection has a surface that is furthest from the substrate, and wherein an array of DNA probes is arranged on the surface such that the surface comprises a plurality of individual positions on each projection; (c) simultaneously placing the projections that extend from the substrate into the wells of the tray, wherein the arrays of DNA probes on the surfaces of the projections contact the solution in the wells of the tray, and wherein the arrays of DNA probes bind to one or more target DNA molecules in the solution if the one or more target DNA molecules are present in the wells; and (d) removing from the wells of the tray the projections that extend from the substrate and then detecting the arrays, thereby detecting one or more target DNA molecules that bound to the arrays prior to removing the projections.