As electronic, thermoelectric and computer technologies have been miniaturized to nanometer scale, engineers have faced a challenge studying fundamental properties of the materials involved; in many cases, targets are too ...
Nanophysics
Jun 8, 2022
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674
When proteins get "out of shape", the consequences can be fatal. They lose their function and in some cases form insoluble, toxic clumps that damage other cells and can cause severe diseases such as Alzheimer's or Parkinson's. ...
Biochemistry
Feb 11, 2013
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0
(Phys.org)—Biological systems are characterized by a form of molecular recycling – and proteins do not escape this fate. In particular, unneeded or damaged proteins biochemically marked for destruction undergo controlled ...
As any cook knows, some liquids mix well with each other, but others do not. For example, when a tablespoon of vinegar is poured into water, a brief stir suffices to thoroughly combine the two liquids. However, a tablespoon ...
General Physics
Jan 29, 2021
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269
Photodetectors made from graphene can process and conduct light signals as well as electric signals extremely fast. Within picoseconds the optical stimulation of graphene generates a photocurrent. Until now, none of the available ...
Nanophysics
Jan 31, 2012
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0
To undergo high-resolution imaging, cells often must be sliced and diced, dehydrated, painted with toxic stains, or embedded in resin. For cells, the result is certain death.
Optics & Photonics
Nov 16, 2017
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516
(PhysOrg.com) -- IBM scientists have demonstrated a promising and practical method that effectively eliminates the mechanical wear in the nanometer-sharp tips used in scanning probe-based techniques. This discovery can potentially ...
Nanophysics
Sep 7, 2009
8
0
Looking at the precise three-dimensional arrangement of atoms within a protein helps us to understand how it can perform its functions. Although electron cryo-microscopy (cryo-EM) has developed rapidly as an important structural ...
Nanophysics
Oct 22, 2020
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338
(Phys.org) —In a dark, starless patch of intergalactic space, astronomers have discovered a never-before-seen cluster of hydrogen clouds strewn between two nearby galaxies, Andromeda (M31) and Triangulum (M33). The researchers ...
Astronomy
May 8, 2013
15
0
For decades, scientists have used techniques such as X-ray crystallography and nuclear magnetic resonance (NMR) imaging to gain invaluable insight into the atomic structure of molecules. Such efforts have long been hampered ...
Nanophysics
Apr 18, 2014
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