Images

These colorful fractions were obtained upon purifying a synthetic small-molecule through flash column chromatography. Though most of these were impurities (bright colors in organic chemistry is usually not a great sign), it served as a reminder to…

The adaptation of the opportunistic human pathogen Pseudomonas aeruginosa often produces phenotypic diversity. Here, mutants isolated from a genetic screen show notable differences in phenotype: the production of pigments, size, shape, and texture. The…

What you’re seeing is the brain of an axolotl, an organism known for its ability to regenerate many organs including the limb, heart, and spinal cord. The different colors (blue, green, red) represent some of the neuronal cell types present within…

Gene therapy is an approach to treating genetic diseases by re-introducing a functional copy of a gene into cells to replace the mutated, disease-causing gene. To get these genes into the cells, scientists create a vector by packaging the DNA encoding…

The intricate network of blood microcirculation in the human body is a closed and complex one. The hierarchy of blood flow in the human body takes blood from the heart to deep organs systems, through arteries that branch out into smaller arterioles and…

Zebrabow embryos express random combinations of red, green, and blue fluorescent proteins, revealing a spectrum of unique hues. These same hues can be used to ‘barcode’ individual stem cells to track their birth and contribution to tissues as the embryo…

  Have you ever experienced itchy, watery eyes as a result of seasonal allergies? The objects in this picture are to blame. This microscope image shows conjunctival tissue from an eye in the presence of a single mast cell. Mast cells are important…

And how! Depicted here are intricate collagen fibers, the structural glue and the most abundant protein in the mammalian body. Collagen proteins occupy the extracellular space in connective tissues, and form fibers that provide the physical scaffold for…

Plants, like animals, require a circulatory system that allows water and nutrients to move throughout them. While animals do this by a pump (the heart), plants do this by a system of tubes, found within the stem. This image is a cross section of a Lily…

The Drosophila neuromuscular junction is a beautiful and yet powerful model synapse for in vivo studies of development, physiology, cell biology and plasticity. This illustration by Saskia Van Vactor shows a field of ventral longitudinal body wall…