Zebrafish embryo showing the alignment of cells involved in the formation of the neural tube, which will become the spinal cord and brain.

Differentiated human induced pluripotent stem cells (iPSCs) following differentiation protocol. Cell nuclei were stained with DAPI (blue), nestin (red) and beta3-tubulin/Tuj1 (green). Note the fate de...

Blood vessels and astrocytes in aging rat retina, confocal imaging, 40x. Blood vessels are shown in blue; astrocytes (supportive cells of the nervous system) are mostly in red. As organisms age, ...

Eye of a 24 hr zebrafish embryo stained for paxillin (green) and laminin (red). Images made available by Mark Cooper thru The Zebrafish A Living Laboratory.

Human umbilical vein endothelial cells stained initially for nuclei with DAPI (blue) and for vascular endothelial cadherin (red).

Fluorescent micrograph of A549 cells (adenocarcinomic human alveolar basal epithelial cells) showing the nucleus (blue) and mRNAs of TFRC (transferrin receptor) identified by fluorescently labeled oli...

A heat map (color intensity look up) of a confocal image of a fruit fly (Drosophila) ovary stained with Dapi. Honorable Mention, 2011 Olympus BioScapes Digital Imaging Competition®.

Patient-derived glioma stem cells treated with a PLK1 (serine/threonine-protein kinase) inhibitor and stained for nuclei (blue), alpha-tubulin (green), phospho-histone H3 (red).

Fluorescence micrograph of a neuron regenerating in culture. Honorable Mention, 2006 Olympus BioScapes Digital Imaging Competition.

Human umbilical vein endothelial cells stained initially for nuclei with DAPI (blue) and for vascular endothelial cadherin (red).