Fig. 5: Detecting extracellular signals.
From: Lipid droplets as endogenous intracellular microlenses
a Schematic (side view) of the enhanced detection of cancer cells in fluid by a lipid droplet inside the adipose cell. b Fluorescence images (top view) of the detecting process. The yellow and red dotted circles indicate the lipid droplet (diameter: 20 μm) and the cancer cell, respectively. The mitochondria of the cancer cell were marked by Mito-Tracker (green). The red arrow indicates the direction of fluid flow in the capillary. c The corresponding intensity mapping of the fluorescence emitted from the cancer cell mitochondria
