I've heard of a technique for amplifying signal of low density antigens by creating layers of avidin-biotin complex, thereby increasing the available biotin targets for the finally added fluorescent-conjugated avidin. Anyone know about this, and do you have references? I've searched, but I guess I can't come up with the proper key words. Thanks. MAK. --- Mark A. KuKuruga, Managing Director University of Michigan Flow Cytometry kukuruga@medmail.med.umich.edu
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