One might think that the optical tweezer – a focused laser beam that can trap small particles – is old hat by now. After all, the tweezer was invented by Arthur Ashkin in 1970. And he received the Nobel Prize for it this ...
Quantum Physics
Nov 7, 2018
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(PhysOrg.com) -- Engineering researchers have used a very tiny beam of light with as little as 1 milliwatt of power to move a silicon structure up to 12 nanometers.
Nanophysics
Nov 17, 2009
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Three years ago, Arthur Ashkin won the Nobel Prize for inventing optical tweezers, which use light in the form of a high-powered laser beam to capture and manipulate particles. Despite being created decades ago, optical tweezers ...
General Physics
Jun 26, 2021
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(PhysOrg.com) -- Manipulating tiny objects like single cells or nanosized beads often requires relatively large, unwieldy equipment, but now a system that uses sound as a tiny tweezers can be small enough to place on a chip, ...
Nanomaterials
Aug 28, 2009
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What if you could reach through a microscope to touch and feel the microscopic structures under the lens? In a breakthrough that may usher in a new era in the exploration of the worlds that are a million times smaller than ...
General Physics
Sep 13, 2013
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Tiny gold particles are good for transferring heat and could be a promising tool for creating localized heating in, for example, a living cell. In new experiments, German researchers at the Niels Bohr Institute have measured ...
Nanomaterials
Jan 17, 2011
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Optothermal nanotweezers are an innovative optical design method that has revolutionized classical optical techniques to capture a broad range of nanoparticles. While the optothermal temperature field can be employed for ...
Sound waves can precisely position groups of cells for study without the danger of changing or damaging the cells, according to a team of Penn State researchers who are using surface acoustic waves to manipulate cell spacing ...
General Physics
Dec 22, 2014
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As science and technology go nano, scientists search for new tools to manipulate, observe and modify the "building blocks" of matter at the nanometer scale. With this in mind, the recent publication in Nature Nanotechnology ...
General Physics
Mar 2, 2014
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(Phys.org)—Nanotechnology, the manipulation of matter at the atomic and molecular scale, holds great promise for everything from incredibly fast computers to chemical sensors that can sniff out cancer cells. But how does ...
Nanophysics
Jan 11, 2013
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