REENTRANT CAVITY BIOASSAY FOR DETECTING MOLECULAR OR CELLULAR EVENTS

摘要

A reentrant cavity bioassay includes a reentrant cavity and a sample retaining structure. The reentrant cavity includes a reentrant post extending from a first interior surface and terminating proximate to a second interior surface, the gap between the termination of the reentrant post and the second interior surface defining a detection region. The sample retaining structure is configured to retain the sample in the detection region, wherein at least a portion of the sample retaining structure is located within the detection region.