US 7,354,389 B2
Microarray detector and methods
Fareed Kureshy, Del Mar, Calif. (US); Vijay K. Mahant, Murrieta, Calif. (US); Shailendra Singh, Carlsbad, Calif. (US); and Xiaohua Shen, San Jose, Calif. (US)
Assigned to Autogenomics, Inc., Carlsbad, Calif. (US)
Appl. No. 10/509,985
PCT Filed May 28, 2003, PCT No. PCT/US03/17073
§ 371(c)(1), (2), (4) Date Nov. 16, 2004,
PCT Pub. No. WO03/100474, PCT Pub. Date Dec. 04, 2003.
Claims priority of provisional application 60/383896, filed on May 28, 2002.
Prior Publication US 2005/0118640 A1, Jun. 02, 2005
Int. Cl. C40B 60/08 (2006.01)
U.S. Cl. 506—37  [435/6] 13 Claims
 
1. An analytic system for optical detection of a plurality of analytes that are bound to a biochip, the analytic system comprising:
a platform functionally coupled to a confocal microscope detector and movable along an x-coordinate, a y-coordinate, and optionally a z-coordinate relative to the detector, wherein the platform is configured to receive a biochip;
wherein the biochip has a plurality of registration markers and further has a plurality of analytes in predetermined positions relative to the registration markers;
a first light source that is configured to illuminate the registration markers at a first angle relative to the z-coordinate to generate registration marker signals, and further comprising a second light source that is configured to sequentially illuminate at least two of the plurality of analytes at a second angle relative to the z-coordinate to generate at least two individual analyte signals, respectively;
a computer configured to determine the position of the biochip with respect to a given x-coordinate value and a given y-coordinate value using the registration marker signals; and
wherein the first and the second angles are different.