Molecules made in labs often have a downside that nature mysteriously avoids. The problem is that many molecules are chiral, which means they have an asymmetrical structure. A consequence of chirality is that when we synthesize ...
Nanophysics
Sep 25, 2017
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17
Sensitive sensors must be isolated from their environment as much as possible to avoid disturbances. Scientists at ETH Zurich have now demonstrated how to remove from and add elementary charges to a nanosphere that can be ...
Nanophysics
Jun 28, 2017
1
229
A team of engineering researchers from the University of Victoria (UVic) and the University of Rochester (UR) has developed a way to detect single molecules using a light-based technology inspired by the "whispering gallery" ...
Optics & Photonics
Jul 28, 2016
0
1319
Ever since Kepler's observation in the 17th century that sunlight is one of the reasons that the tails of comets to always face away from the sun, it has been understood that light exerts pressure in the direction it propagates. ...
Optics & Photonics
Apr 25, 2016
105
503
The probe of an atomic force microscope (AFM) scans a surface to reveal details at a resolution 1,000 times greater than that of an optical microscope. That makes AFM the premier tool for analyzing physical features, but ...
Nanophysics
May 1, 2015
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1315
After using optical tweezers to squeeze a tiny bead attached to the outside of a human stem cell, researchers now know how mechanical forces can trigger a key signaling pathway in the cells.
Cell & Microbiology
Feb 10, 2015
0
611
A large international team of astronomers led by Jun Hashimoto (National Astronomical Observatory of Japan) and Ruobing Dong (Princeton University) has used the High Contrast Instrument for the Subaru Next Generation Adaptive ...
Astronomy
Nov 11, 2012
0
0
(Phys.org)—Researchers from the NIST Center for Nanoscale Science and Technology have developed on-chip optomechanical sensors for atomic force microscopy (AFM) that extend the range of mechanical properties found in commercial ...
Nanophysics
Oct 25, 2012
0
0
(Phys.org)—Using a microscopic optical sensor that can be batch-fabricated on a silicon chip at low cost, researchers from the NIST Center for Nanoscale Science and Technology have measured the mechanical motion between ...
Optics & Photonics
Sep 20, 2012
0
0
(Phys.org)—A refined method developed at the National Institute of Standards and Technology (NIST) for measuring nanometer-sized objects may help computer manufacturers more effectively size up the myriad tiny switches ...
Optics & Photonics
Sep 6, 2012
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