Abstract: The present invention provides methods of making a population of nucleic acid molecules, wherein each nucleic acid molecule comprises a predetermined nucleic acid sequence, each of said methods comprising the steps of: (a) synthesizing, on a substrate, a population of nucleic acid molecules wherein: i) each synthesized nucleic acid molecule comprises a predetermined nucleic acid sequence; and ii) each synthesized nucleic acid molecule is localized to a defined area of said substrate; (b) harvesting said population of synthesized nucleic acid molecules from said substrate to yield harvested nucleic acid molecules; and (c) introducing said harvested nucleic acid molecules into vector molecules.

Abstract: The present invention provides devices, systems and methods for RNA isolation from biological samples containing white blood cells, such as whole blood. The devices have a device body that includes a first chamber having a first membrane that selectively binds white blood cells, a second chamber having a second membrane that reversibly binds RNA and a plurality of ports that are removably attached to a reagent pack and waste receptacle via a valving system controlled by a control unit.