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Polychromatic scanning electron microscopy of 3D vaccine consisting of microsized, porous silica rods. Source: James C. Weaver, Wyss Institute |
Using computer software programs, scientists combined brain MRIs from 20 healthy people into this composite image, in which ellipsoids represent normal anatomical variations. Pink purple ellipsoids, signifying the greatest variation, occur in brain regions that are uniquely human for example, regions that control language and logical reasoning. Blue ellipsoids, representing slight variations, occur in brain regions that control sensation and movements. Ultimately, this baseline data on interpersonal variability will allow scientists to distinguish normal anatomical variation from abnormal brain loss, such as that seen in Alzheimer's disease. Source: Paul Thompson, University of California, Los Angeles |
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The image on the left shows skin cells (green dots) and neurons (red cell) marking the shape of the embryo. The image on the right shows the skin cells connected by the software to make a computerized model of how the embryo folds and twists. |
Researchers achieved an improved contrast ratio using two-step fluorescent microscopy. The figure at the right, labeled a, is bone cancer tissue, imaged using one-step fluorescence, compared with the figure, labeled b, that depicts the same tissue imaged with two-step fluorescence microscopy. |
Mark Pollock rises to a standing position as trainer Simon O'Donnell spots. He was able to assist in taking steps while receiving transcutaneous spinal stimulation and using the exoskeleton. Photo credit: Courtesy of Mark Pollock. |
Study participant Mark Pollock, who is affected by a spinal cord injury, receives spinal stimulation while taking steps in battery-powered exoskeleton, with UCLA researchers Yury Gerasimenko, left, and Parag Gad, right. Credit: Courtesy of Mark Pollock. |
Tucked inside the plastic cube is a powerful, high-resolution, lens-less microscope the size of a bumblebee’s hair bristle. Capable of using sunlight as the light source, the mini microscope can image blood cells and microscopic organisms with comparable clarity to a conventional light microscope. Source: Changhuei Yang |
This fluorescence microscopy image shows the distribution of two nanoparticles pumped gently into the brain. One particle (red) bound to brain tissue near the site of infusion while the other particle penetrated outwards several millimeters (green). Nanoparticles can be filled with either drugs or DNA for treatment of diseases including brain tumors, Alzheimer's, and Parkinson's. Visual studies like this help determine what properties are best suited to deliver therapy to these diseases. |
Growth of blood vessels (red) enables implanted HEALs to grow and function in the mouse. This miniature human liver was removed from a HEAL-humanized mouse. Source: Sangeeta Bhatia, MIT |
Diffusion Tensor Imaging Deformation. Ellipsoidal tensor glyphs visualize fluid registration. Source: David Shattuck, and Paul M. Thompson |
Nerve cells, tagged with fluorescent red dye, grow on a bioengineered scaffold that creates a ring-shaped pattern. The scaffolding consists of meningeal fibroblasts-cells that form the connective tissue surrounding the brain and spinal cord. Scaffolding such as this may one day form the basis of implants for repairing severed spinal cords or damaged nerves. Source: Thomas Beebe, University of Delaware. |