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. 2005 Jan;12(1):28–39. doi: 10.1128/CDLI.12.1.28-39.2005

FIG. 3.

FIG. 3.

The principle of optical detection of Ab binding to surfaces of sensor chips in a BIAcore immunoassay device. Binding of Abs to a sensor chip is detected by the internal reflection of incident, polarized light off the chip surface. The angle of internal reflectance is dependent on the mass of Abs binding to the chip surface. Reproduced with permission from BIAcore, Inc.