Lysiosquillina maculata zoeae: Stomatopod crustaceans begin their life as transparent, alien-like larvae bearing almost no resemblance to their adult progenitors. The jeweled eyes depicted here are the result of a reflecting pigment layer overlying the retina in the larval compound eyes. This reflecting pigment is predicted to aid in camouflaging an otherwise conspicuous retina, allowing larvae to go unnoticed by visual predators.
Gonodactylus childi zoea: Stomatopod crustaceans begin their life as transparent, alien-like larvae bearing almost no resemblance to their adult progenitors. This first-stage larva has a prominent yellow, yolk sack and shows early the signs of compound eye-shine. The eye-shine is thought to function as an ocular camouflage from visual predators when larvae emerge from the burrow and become suspended in the water column.
Scaled Version of an Iron Planet: This micro-sized iron sphere was formed as a result of a milling processes. Samples were collected from the wall behind the milling machine. The milling process imparted a magnetic field to the spheres which deposited on along the studs in the wall.
The Surface of Mars: The surface of Mars in this image is actually the surface of a silicon wafer with Carbon Nanotubes (CNTs) growing from its surface. Debris on the surface changes the chemistry of the CNT growth resulting in the “craters” on the Martian surface. The “canal” is a result of an uneven coating of the catalyst film layer.
Neural Stem Cells: there's beauty in science!: Volocity 3D reconstruction of a confocal image of mice embryonic neural stem cells (NSCs) cultured in collagen matrices for 3 days. The image shows the differentiation of neurospheres into astrocytes (green), near the center, and neurons (red), that migrate away from the neurosphere. Neurons are stained with antibodies against βIII-tubulin, an early neuronal marker, and astrocytes are labeled with GFAP, a glial cell marker expressed in astrocytes.
Evolution of Texture (preferred orientation) with plastic deformation: Texture is defined as the distribution of crystallographic orientation within the sample and a sample with random orientation has no texture. Figs.1 & 2 shows the initial (before experiment) and final texture (after experiment) of Mg and Al alloys sheet materials using neutron diffraction technique. Also, Al and Mg being FCC and HCP material showed very different texture before and after the experiment.
A Molecule Bound on a β-Amyloid Protein Fibril: β-Amyloid protein forms fibrils which are believed to be related to Alzheimer’s disease. In the picture, a 12 protein fragment of a β-Amyloid fibril is depicted in blue, with the fibril surface in gray. Two binding sites of Congo-red, a molecule used to detect the fibrils and inhibit their toxicity, are shown in red. The binding locations of Congo-red were predicted using computational docking. Docking was done using Dock 6, UCSF. Image was produced using the UCSF Chimera package.
MICROSTRUCTURE OF HUMAN DENTIN: The scanning electron micrograph (SEM) of fractured surfaces show the microstructure of human dentin. The main structural features of dentin are the tubules occupied by cell processes and fluid, the highly mineralized peritubular cuffs (ring shape) and the intertubular dentin, which consists mainly of collagen and deposited apatite. The dentin tubules span the entire thickness of dentin and extend radially from the pulp to the dentin-enamel junction (DEJ). (a) Top view of the dentin microstructure; (b) Side vie of the dentin microstructure.
The brain of a rat: A section of the hypothalamus of a rat brain was immunohistochemically stained with antibodies against Orexin-A and cfos. The neurons labeled with the brown stain are immunoreactive for the peptide, Orexin-A. The nuclei that are labeled with the black stain are immunoreactive for c-fos, a marker for neuronal activation.
Stretching a cell using single and dual diode laser bars: A model cell immersed in a fluid is subjected to light rays from single and dual diode laser bars. Due to the refractive index mismatch between the cell and the fluid, optical forces are exerted on the cell's membrane leading to stretching forces in both cases. Using a dual diode bar the cell is trapped and stretched in place while using a single diode bar, the cell translates but is also stretched as the fluid drag forces act as another diode bar as explained using the cartoon. Our numerical results show that the same equilibrium deformation is attained for both cases. Cell are colored by the membrane's elastic energy.
Numerical red blood cell versus in-vitro red blood cell: A numerically simulated red blood cell is shown together with in-vitro red blood cell. This is to show that advances in numerical techniques can simulate cells and lead to a better understanding on biological phenomena hand in hand with experimental techniques. Both cells are being stretched using optical forces from a diode laser bar . The combined numerical and experimental results can lead to identifying the cell's elastic properties and therefore their nature.
Change in surface morphology of the carbide-coated-CoCrMo alloy specimen: The surface of the carbide-coated-CoCrMo alloy is a continuous network of carbide crystals that creates this unusual “brain-coral” like pattern. Temperatures above 950ºC are used to grow the carbide structure on the CoCrMo alloy substrate. The brain-coral surfaces are being investigated for use to improve artificial joint implants. This image was taken using a scanning electron microscope (SEM-JEOL).
Wear tracks on the carbide-coated CoCrMo alloy specimen: The image is the surface morphology of the carbide-coated specimen after wear testing. The wear tracks (depicted as the line markings) are embedded on the continuous network of carbide crystals. This image is of an entire carbide-coated CoCrMo specimen (15mm in diameter and 7mm thick) taken using a scanning electron microscope (SEM-JEOL).
Micro CT of Spider Exoskeleton: This image shows a spider exoskeleton, as taken by a micro CT scanner. The micro CT scanner employs the same technology as a medical CAT scan, but with a micrometer level resolution. The image's simple outline form results from the skeleton's low density, exterior structure.
Micro CT of Poison Dart Frog: This image shows the skeletal structure of a poison dart frog, only 3 cm in length, as taken by a micro CT scanner. The micro CT scanner employs the same technology as a medical CAT scan, but with a resolution on the micrometer level, allowing even the smallest skeletal details to be clearly visible.
Microstructure Revealed Through Etching: A copper jacket has been sectioned, polished, and etched to reveal the highly textured microstructure developed from the drawing process observed through increasing magnification in an metallurgical microscope.
Mislocalization on neurons in Neural cadherin (N-cad) mutants in the zebrafish hindbrain: Neural tube formation is disrupted in the N-cad mutants in the zebrafish. The neural folds fail to meet at the midline thereby giving rise to a T-shaped neural tube. The image is a cross-section of the zebrafish hindbrain labelled with phalloidin in green (labels cell surfaces), HuC in red (labels neurons) and Dapi in blue (labels the cell nucleus). This image was taken using a Zeiss LSM 510 meta confocal microscope. Neurons fail to migrate to basal regions and are clustered in the ventral region.
Localization of dividing cells and differentiated neurons in the zebrafish hindbrain: Cells divide on the apical side along the hindbrain ventricles while neurons are found in more basal regions of the neural tube. The image is a cross-section of the zebrafish hindbrain labelled with dividing cells (labeled by an antibody against phosphorylated Histone H3) in green,neurons are labeled in pink and cell nuclei are stained with DAPI in blue. This image was taken using a Zeiss LSM 510 meta confocal microscope.
