High-powered microscope can scan cells without destroying them

Confocal microscopes are pretty wild. The instruments can capture cell division in realtime, but the downside is the lasers in existing ones tend to fry the cells they're studying. Researchers from the Hong Kong University of Science and Technology m...

Scientists map every atom inside a nanoparticle

Even the smallest defects can create serious problems. It's a good thing, then, that researchers have found a way to map nanoparticles at an "unprecedented" level of detail -- they've located the 3D positions of all 23,000 atoms in an iron-platinum...

This is the world’s smallest and happiest snowman

The holiday season gets bigger and more hectic every year -- and maybe you're looking for a smaller, more adorable way to celebrate. Here's one: the world's smallest snowman. This microscopic frosty was built by the nanofabrication lab at London's We...

Scientists find the first known dinosaur brain tissue fossil

That lump you see above many not look like much at first blush, but it's a big deal for paleontology: scientists say they have discovered that the sample has the first known example of a dinosaur brain tissue fossil. The team used a scanning electron...

Electron showers could create the nano-spacesuit of the future

Electron showers could create the nanospacesuit of the future

Historically, whenever man or beast's been bombarded with massive amounts of radiation the results have either been gruesome or wholly fantastical (see: any superhero origin story). But recent research out of Japan indicates that a barrage of electrons could actually help scientists revolutionize microbiology and, more excitingly, space travel. The experiment, conducted by a team from the Hamamatsu University of Medicine, found that the larvae of fruit flies hit with this electron rush were able to withstand an electron microscope's hostile vacuum unharmed and even grew to be healthy adults. The results weren't so rosy for the untreated group which, understandably, suffered a grislier fate: death by dehydration. The magic, it turns out, is in that subatomic spray, as the group treated with an electron shower benefited from a polymerizing effect or, more plainly, a bonding of molecules just above the skin's surface that yielded a tough, protective nano-layer measuring between 50- to 100-billionths of a meter thick. Finesse that technique some and it's easy to why one NASA scientist thinks this could lead to the creation of a super-thin "space shield... that could protect against dehydration and radiation."

The process is still far from foolproof, however, seeing as how an increase in the microscope's resolution requires an equal boost in radiation -- all of which is fatal to the insects. So, in order to go deeper and get a more close-up view of the larvae's internals, the team's currently exploring new methods of fabricating these "nano-suits" using an array of chemicals. If you're wondering just how far-off we are from practical human application, then consider this: the amount of radiation required to form the bonded layer is akin to "sunbathing naked on the top of Everest under a hole in the ozone." Which is to say, keep dreaming. And get Jeff Goldblum on the phone while you're at it... we have a promising idea for a Return of the Fly sequel.

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Via: Wired

Source: ScienceNOW

Scientists generate 281-gigapixel cell map using electron microscope

Scientists generate 281gigapixel cell map using electron microscope

Electron microscopes can produce incredibly detailed and even 3D views of sub-cellular structures, but often at the cost of losing the bigger picture. Researchers at Leiden University in the Netherlands, however, have leveraged a technique called virtual nanoscopy that enables researchers to observe the whole of a cell and its intricate details in a single image. With the method, the team stitches together nanometer resolution photographs of what's gone under the scope to create a map with adjustable zoom a la Google Maps. Their study created a 281-gigapixel image (packed with 16 million pixels per inch) of a 1.5-millimeter-long zebrafish embryo. If you'd like to take a gander at the ultra-high resolution fish or read up on the group's findings for yourself, check out the source links below.

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Scientists generate 281-gigapixel cell map using electron microscope originally appeared on Engadget on Wed, 08 Aug 2012 04:32:00 EDT. Please see our terms for use of feeds.

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  • Source:The Journal of Cell Biology, (2)
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    Scientists generate 281-gigapixel cell map using electron microscope

    Scientists generate 281gigapixel cell map using electron microscope

    Electron microscopes can produce incredibly detailed and even 3D views of sub-cellular structures, but often at the cost of losing the bigger picture. Researchers at Liedel University in the Netherlands, however, have leveraged a technique called virtual nanoscopy that enables researchers to observe the whole of a cell and its intricate details in a single image. With the method, the team stitches together nanometer resolution photographs of what's gone under the scope to create a map with adjustable zoom a la Google Maps. Their study created a 281-gigapixel image (packed with 16 million pixels per inch) of a 1.5-millimeter-long zebrafish embryo. If you'd like to take a gander at the ultra-high resolution fish or read up on the group's findings for yourself, check out the source links below.

    Filed under:

    Scientists generate 281-gigapixel cell map using electron microscope originally appeared on Engadget on Wed, 08 Aug 2012 04:32:00 EDT. Please see our terms for use of feeds.

    Permalink PhysOrg  |  sourceThe Journal of Cell Biology, (2)  | Email this | Comments