Patent ID: 6855538
Filing Date: 2005-02-15
Classification: B41J,C12Q,Y10T

Abstract:
1. A microarray print head, said print head comprising: a plurality of glass or quartz spotting capillary tubes disposed in a support that maintains a fixed spacing between said spotting capillaries and that permits the spotting capillary tubes to move in a direction parallel to the long axis of said capillary tubes, wherein said capillary tubes: have an internal diameter ranging from about 20 μm to about 100 μm; have an aperture ID or OD ranging from about 20 μm to about 75 μm; have an outside diameter ranging from about 0.4 mm to about 1 mm; have a center-to-center spacing ranging from about 1 mm to about 10 mm; have a load volume ranging from about 0.05 μL to about 1 μL; and range in number from about 2 to 256; wherein said capillary tubes are in fluid communication with a manifold.