It is powerful because an AFM can generate
images at atomic resolution with angstrom scale resolution height information, with minimum sample preparation.
Not exact matches
The resulting
atomic -
resolution topographic
images reveal positions and orientations of atoms and molecules, and also provide a detailed look
at structural defects in the surface.
In 1990, Henderson was the first to use an electron microscope to produce «a three - dimensional
image of a protein
at atomic resolution.
Researchers have gone on to study «proteins that cause antibiotic resistance» and to produce three - dimensional
images of the Zika virus
at atomic resolution, permitting scientists to hunt for weaknesses that new pharmaceuticals could exploit.
Atomistic models and
atomic -
resolution STEM HAADF (scanning transmission electron microscopic high - angle annular dark - field)
images showing three examples of segregation - induced superstructures observed
at randomly - selected general grain boundaries of a nickel - bismuth (Ni - Bi) polycrystalline alloy.
Then in 1990, after 15 years» work refining sample preparation and electron detection, Henderson succeeded in using an electron microscope to create an
image of a large bacterial cell membrane protein called bacteriorhodopsin, and do it
at atomic resolution.
Cryo - electron microscopy fires electrons
at proteins that have been frozen in solution, providing
images of such high
resolution that scientists can create models down to the
atomic level.
The first included pictures of individual nanoparticles»
atomic structures
at 100,000 - times magnification — the highest
resolution images ever taken of nanoparticles in a liquid environment.
On page 206 of this issue, Han et al. report
images of halogen bonding
at atomic resolution (4).
The microscope captures 3D
images about once per second
at resolutions of about 200 to 250 nanometers, not
atomic resolution, but still
at a dynamic level never before seen.
GERBER: Our sole idea in developing AFM was to
image nonconductive surfaces, such as ceramics or biological materials,
at atomic resolution by scratching a very fine needle on a long arm, or cantilever, over that surface.