| 摘要 |
<p>Bead manipulating chucks for selective pick up and discharge of polymer beads for chemical synthesis, whereby bead collection zones (BCZ) are recessed from bead contact surfaces (BCS). A voltage can be applied to a bead electrode (9) relative to shield material (10) to allow attraction of beads to the bead collection zone (BCZ). The strong dependence of the electrostatic image force on bead diameters provides a mechanism that selects bead sizes that are retained by the bead manipulating chuck.</p> |
