Staining and visualisation of tiny tiny leaf sections via transmission electron microscopy. Samples are fixed in resin and sectioned to 15microns and placed on tiny grids. These are then stained and placed in the TEM. Under vacuum, electrons are fired at the samples and an image captured... not unlike light microscopy. Researchers then marvel at the insides of little cells and the strange things they do. Thanks @emunituct ! #research#science#sciencecommunication#transmissionelectronmicroscopy#plants
Ain't no ordinary pixelated fuzz! At 500,000x magnification (you read that right, a half million times magnified!) I was able to view the crystalline lattice structure of my palladium nanoparticle samples today. What does that mean exactly? Light from an electron laser passes through the spaces between atoms but is blocked by the atoms themselves; resulting in a crosshatched design. The image is so incredibly sensitive from the natural vibrations of each atom and high magnification that clapping your hands from across the room is enough to send it all into a blur!
Negative stain TEM image of a novel tymovirus, Naranjilla Chlorotic Mosaic Virus (NarCMV) isolated from symptomatic leaves of a popular citrus variety, naranjilla, which is commonly cultivated in the Andes for fresh fruit and juice production. Previously there had been no other reports of viral infections on naranjilla, however this new virus represents a potential significant threat to the economy of Ecuador. Pseudocolored
Image courtesy: Joe Mowery - USDA ARS @joe_mowery
Mitochondria in a cardiac muscle cell. Most of us have learned that mitochondria are the “powerhouse of the cell”. But did you know that they evolved from bacteria? Millions of years ago (when all life was made of single cells), mitochondria were a type of bacteria that adapted itself to living inside of eukaryotic cells in a process called endosymbiosis. This is evidenced by the fact that the DNA in our nucleus doesn’t contain the instructions to make mitochondria, instead mitochondria carry their own genome. Furthermore, the DNA of the mitochondria itself is structured in such a way that it more closely resembles bacterial DNA than our own. Crazy right?! @thermosciemspec #science#evolution#cell#biology#microscopy#electronmicroscopy#transmissionelectronmicroscopy#mitochondria#sciart#art#themoreyouknow
Did you know the brain of a fruit fly, roughly the size of a poppy seed, contains 100,000 neurons? Scientists were able to capture nearly 21 million images using transmission electron microscopy, meaningwe can now trace the brain in detail (the colored threads pictured here). Image from @cellpress.