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May 24 | News
The
contention of a major but controversial new theory to explain
nanocrystal growth is that nanoparticles can act as “artificial atoms,”
forming molecular-type building blocks that can assemble into complex
structures. The conclusion is based on recent observations of growing
nanorods made by Lawrence Berkeley National Laoratory researchers using
transmission electron microscopy and advanced liquid cell handling
techniques.
May 22 | News
Electron
microscopes are often used to study fossils, which are first coated in
an ultra-thin layer of gold to help reveal details. However, removing
this layer often involves harsh chemicals like cyanide. Chemists in the
U.K. have developed a new method using ionic liquid to remove the
plating without destroying fossil features.
May 21 | News
Hundreds
of tiny hollow needles stick out of the membrane of a bacteria that
causes cholera. These are treacherous tools that makes bacterial
pathogens so dangerous. Researchers in the U.S. and Germany have now
seen this structure in 3D detail at atomic resolution. The images may
help drug researchers.
May 21 | News
Blood
tests convey vital medical information, but the sight of a needle often
causes anxiety and results take time. A new device developed by a team
of researchers in Israel, however, can reveal much the same information
as traditional blood test in real-time, simply by shining a light
through the skin.
May 16 | News
Microscopes
provide valuable insights in the structure and dynamics of cells, in
particular when the latter remain in their natural environment. This is
difficult to do, but a team of researchers in Germany and the U.S. have
now developed a new method to visualize cell structures of an eighth of a
micrometer in size in living fish larvae.
May 11 | News
Drawing
on computational tools and scanning transmission electron microscopy, a
team of University of Wisconsin-Madison and Iowa State University
materials experts has examined metallic glasses at the
difficult-to-reach scale of just a few nanometers length. They have
discovered a new nanometer-scale atomic structure that could help
developers fine-tune structures.
May 4 | News
A team of scientists has been working to develop nanocrystallography techniques that can be used in ordinary science settings. They have shown how a powerful method called atomic pair distribution function (PDF) analysis can be carried out using a transmission electron microscope.
Apr 23 | News
Researchers from the Georgia Institute of Technology and University of
California,
San Francisco
have advanced scientists' ability to view a clear picture of a single
cellular
structure in motion. By identifying molecules using compressed sensing,
this
new method provides needed spatial resolution plus a faster temporal
resolution
than previously possible.
Apr 19 | News
Scientists
at the National Center for Electron Microscopy have created the
first-ever atomic-scale real-time movie of nanocrystal growth in liquid.
The movie, which shows nanoparticles of platinum diffusing in liquid
then coalescing into crystals, was made possible with TEAM I, the
world’s most powerful microscope.
Apr 19 | News
The boundary between electronics and biology is blurring with the first detection by researchers at Oak Ridge National Laboratory of ferroelectric properties in an amino acid called glycine. A multi-institutional research team used a combination of experiments and modeling to identify and explain the presence of ferroelectricity in the simplest known amino acid—glycine.
