Zooplankton by Katja Närhi

Zooplankton by Katja Närhi

A cross-section of fresh lung tissue with developing pulmonary cancer. The tissue is stained with fluorescently labeled markers that localize to either live (red) or dead (green) cells. Cell nuclei are indicated with a blue marker. The staining, analysed with a fluorescence microscope, helps the investigator to assess the viability of the tissue. Cross section size is 250 µm.