3D microscope
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Scientists unveil 3D microscope that visualizes cells without damaging them
There's a problem in cell biology research: to study what happens inside a cell, it has to be destroyed. When scientists use a traditional microscope to observe a cell, they use stains -- chemicals that color parts of the cell to make them visible. However, these stains cause damage and kill the cell prematurely. This might not be a problem for long though, as scientists at the Swiss Federal Institute of Technology (EPFL) have developed a technique to look inside living cells without damaging them.
Engineers create 3D microscope lens, see the tiny elephants in your ear
The ability to view tiny images in the third D has been made possible by Lei Li and Allen Yi of Ohio State University. The two have crafted a one-of-a-kind 3D lens that, unlike other three-dimensional microscopes that capture images by circling around the subject, sees teeny objects while stationary. Although the engineers crafted the lens on a precision cutting machine using a diamond blade themselves, they say it can be produced using traditional molding methods. At the size of a fingernail, the thermoplastic material, aka acrylic glass, was cut with 10 nanometer spacing (that's tiny) to ensure a flat plane. The top is surrounded by eight facets -- sort of like a gem stone, but not symmetric -- allowing the viewer to see 9 different angles at once. This should pave way for scientists to get better angles of microscopic objects, but they can always try using the 3DS and some DIY lens attachments, right?
