发明名称 |
APPARATUS AND METHODS FOR MULTIANALYTE HOMOGENEOUS FLUOROIMMUNOASSAYS |
摘要 |
Methods and apparatus for evanescent light fluoroimmunoassays are disclosed. The apparatus employs a planar waveguide (124) with an integral semi-cylindrical lens (502), and has multi-analyte features and calibration features, along with improved evanescent field intensity. A preferred embodiment of the biosensor (120) and assay method have patches (662) of capture molecules (720) each specific for a different analyte (210), disposed adjacent within a single reservoir (660). The capture molecules (720) are immobilized to the patches (662) on the waveguide surface by site-specific coupling of thiol groups on the capture molecules (720) to photo-affinity crosslinkers (706), which in turn are coupled to the waveguide surface (700) or to a non-specific-binding-resistant coating (702) on the surface (700). The patches (662, 664, 666) of different antibodies are produced by selectively irradiating a portion (714) of the waveguide surface (700) during the process of coupling the photo-affinity crosslinkers (706), the selective irradiation involving a mask (712), a laser light source, or the like. |
申请公布号 |
WO9427137(A3) |
申请公布日期 |
1995.01.19 |
申请号 |
WO1994US05567 |
申请日期 |
1994.05.18 |
申请人 |
UNIVERSITY OF UTAH RESEARCH FOUNDATION |
发明人 |
HERRON, JAMES, N.;CHRISTENSEN, DOUGLAS, A.;WANG, HSU-KUN;CALDWELL, KARIN, D.;JANATOVA', VERA;HUANG, SHAO-CHIE |
分类号 |
G01N33/533;G01N21/25;G01N21/64;G01N21/77;G01N33/542;G01N33/543 |
主分类号 |
G01N33/533 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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