Low energy

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Synopsis: Nuclear physics: Nuclear physics generale: Energy: Low energy:

And we need to incorporate zero waste and low energy technologies into the task of food production. What can achieve the intensification of food supply we require,

The first nanometer resolved image of individual tobacco mosaic virions shows the potential of low energy electron holography for imaging biomolecules at a single particle level--a milestone in structural biology and a potential new tool

The work demonstrates the potential of low energy electron holography as a non-destructive, single-particle imaging technique for structural biology.

"We've shown that by means of low energy holography, it is possible to image individual tobacco mosaic virions deposited on ultraclean freestanding graphene,

Low energy electron holography is a technique of using an electron wave to form holograms. Similar to light optical holography

"The low energy electron holography has two major advantages over conventional microscopy. First, the technique doesn't employ any lenses,

Second, low energy electrons are harmless to biomolecules, "Longchamp said. In many conventional techniques such as transmission electron microscopy, the possible resolution is limited by high-energy electrons'radiation damage to biological samples.

in low energy electron holography, the employed electron doses can be much higher--even after exposing fragile molecules like DNA or proteins to a electron dose more than five orders of magnitude higher

Sufficient electron dose in low energy electron holography makes imaging individual biomolecules at a nanometer resolution possible.

which is conductive, robust and transparent for low energy electrons. To obtain the high-resolution hologram, an atomically sharp, tungsten tip acts as a source of a divergent beam of highly coherent electrons.

"Since low energy electron holography is a method very sensitive to mechanical disturbance, the current nanometer resolution could be improved to angstrom (one ten billionth of a meter)

The article"Low energy electron holographic imaging of individual tobacco mosaic virions"is authored by Jean-Nicolas Longchamp, Tatiana Latychevskaia, Conrad Escher and Hans-Werner Fink.

--but at much lower energy absorption efficiency levels,"said Ramahi.""We can also channel the absorbed energy into a load,

low energy solution to grow food in parts of the world where this was not previously possible.

The image shows the graphene lattice with blue arrows indicating the motion direction of that carbon atoms for one of the low energy phonon modes in graphene.

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