We present a unique design for a flow cell with a small working volume that
allows rapid displacement of media viewed under high power and short worki
ng distance objectives. The flow cell has a small internal depth (ca. 0.033
cm) and volume (ca. 0.05 mL) and is easy to handle. Made of Delrin(R), the
flow cell is biologically inert. We have used the flow cell for fluorescen
ce imaging of PC12 cells loaded with tetramethylrhodamine dextran (TMRD) an
d other dyes.