Method and apparatus for exposing cells to different concentrations of analytes or drugs

摘要

A tapered microchannel structure allows individual cells to be reacted with a continuum of concentrations or dosages of an analyte or drug from one sample. A dual sandbag structure that divides up a tapered micro channel into thirds permits performing two simultaneous tests on two different sets of cells isolated in the two sandbags by introducing a single analyte or drug into the region between the two sandbag structures.