Gallery

The following is a sampling of images from the MEIAF facility, many with MEIAF's new cryo stage. Cryo stage samples are obtained in high vacuum after etching and coating (the standard procedure with frozen material).

MEIAF stores all image and elemental analysis data to a networked hard disk that is tape-archived daily. MEIAF users can also transport digital data copied to either CDs or Jaz disks. Portable media are supplied by users.

Users in collaboration with MEIAF are currently innovating in quantitatively analyzing digital electron micrographs. MEIAF encourages collaboration of this nature and, except where confidentiality is required and guaranteed, also encourages users to consider comprehensive research of our digital image collection.

Cryo Images

Portion of a coated, freeze-fractured cross-section of an apple. The surface of the apple is at the top of the image

Yeast cells, visible after freeze-fracturing and coating a cluster of bakerís yeast

Yeast cells, visible after freeze-fracturing and coating a cluster of bakerís yeast

Cross section of a cell of a leaf that has been freeze-fractured, etched, and coated with gold (imaged in high vacuum)

Two fungi spores on the edge of the cross-section of a freeze-fractured leaf, coated with gold and imaged in high vacuum

Portion of a cross section of a freeze-fractured leaf, where the palisade mesophyll, the spongy mesophyll, and the bundle sheath can be distinguished. Coated with gold and imaged in high vacuum.

Detail of the palisade mesophyll

Detail of an aphid head, frozen and coated with gold

Aphid on a leaf, frozen and coated with gold, and imaged in high vacuum

Non-Cryo Images

Uncoated, hydrated bacterial cells (Escherichia coli)

Surface of the carapace of a live specimen of Daphnea sp.

Image of the uncoated fracture surface of a ceramic matrix composite consisting of NextelTM 720 fibers and a mullite-alumina porous matrix after long-term exposure at elevated temperatures followed by unidirectional tensile tests

Tips of the columns of uncoated yttria-stabilized zirconia thermal barrier coating

Protein fibrils marked with gold on graphite

Back of the head of an uncoated ant

Uncoated 100% cotton paper imaged at 60% relative humidity

Rhodococcus erythropolis biofilm on sand with hexadecane as the carbon source

Uncoated surface of a eucalyptus leaf

Image of a portion of an uncoated eye of a wasp

The head of a flea

Portion of the surface of a fresh leaf of Geranium sp.

Detail of the cross section of a eucalyptus leaf, uncoated

Micrograph of the oxidation layer and base area of a thermally treated yttria-stabilized zirconia thermal barrier coating. (The image is the result of mixing the signals of the backscatter and secondary electron detectors.)

Uncoated pyrite formation from an undersea chimney

Formation from an undersea chimney, uncoated

Portion of an uncoated hypocotyl of Arabidopsis thaliana

Uncoated surface of laser cut on human tooth

Surface of an uncoated leaf, Quercus sp.

Nanotubes formed by deposition of TiO2 on a tubular structure of aluminum oxide after the aluminum oxide is etched

Live foraminiferan

Edge of a Pseudomonas aeruginosa biofilm cultured on a polyester membrane overlying Luria broth agar

Uncoated and fully hydrated mussel thread, damaged by bacteria

Formation of a drusen in the macular tissue of an eye

Human red blood cell with two 1Ķm diameter beads attached to its surface, used in drug-delivery research

Uncoated foraminiferan fossil

Mouse fibroblast cells on glass, uncoated

Skeleton of organism found in a fully hydrated mud sample from the Salton Sea

Thermally treated yttria-stabilized zirconia thermal barrier coating

Mineral formation from an undersea chimney, fully hydrated

Tungsten oxide photocatalytic film on titanium substrate

High magnification image of a tungsten oxide film on titanium substrate with measurements of the tungsten fibers

A photocatalytic film of tungsten oxide on titanium substrate, forming rounded particles

Uncoated recycled paper imaged at 60% relative humidity

Backscatter image of the filament of a car light bulb (courtesy of FEI).

Portion of a root in a sample of soil from Segdwick Reserve

Close up of mycelia growing in a sample of deep soil

Mycelia in a 3-m. deep soil sample from Segdwick Reserve

Portion of the tooth surface of an uncoated fossilized jaw from an extinct reptile (the marks on the teeth provide information about the eating habits of the species)

Completely hydrated vesicle

Backscattered electron image of the cross-section of a mullite/alumina porous matrix fiber-reinforced ceramic composite with monazite (bright) used as a sealant

Uncoated shell of a marine snail (from the collection of the Santa Barbara Museum of Natural History)

Portion of a fully hydrated aquatic worm

Remains of the shell of a non-coated marine diatom, with mineral particles inside

Non-coated marine diatom with mineral crystals growing on it

Non-coated marine diatom