News tagged with optical tweezers
Small optical force can budge nanoscale objects
Nov 17, 2009 |
4.8 / 5 (13) |
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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.
Tailoring the optical dipole force for use on molecules
Oct 29, 2009 |
3.5 / 5 (6) |
1
(PhysOrg.com) -- "Scientists have been working with dipole fields for quite some time," Peter Barker tells PhysOrg.com. "However, most of the work is focused on very small particles, like atoms, or on larger particles, such a ...
Nanotechnology gets a new light touch
Oct 02, 2009 |
4.9 / 5 (8) |
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(PhysOrg.com) -- Building the super-fast computers of the future has just become much easier thanks to an advance by Australian researchers that lets them grab hold of tiny electronics components and probe ...
New Nanochemistry Technique Encases Single Molecules in Microdroplets
Sep 22, 2009 |
5 / 5 (2) |
1
(PhysOrg.com) -- Inventing a useful new tool for creating chemical reactions between single molecules, scientists at the National Institute of Standards and Technology have employed microfluidics -- the manipulation ...
Acoustic tweezers can position tiny objects
Nanotechnology / Nanomaterials
Aug 28, 2009 |
5 / 5 (7) |
1
(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 ...
Gene transcribing machine takes halting, backsliding trip along the DNA
Jul 30, 2009 |
5 / 5 (4) |
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(PhysOrg.com) -- The body's nanomachines that read our genes don't run as smoothly as previously thought, according to a new study by University of California, Berkeley, scientists.
Integrated optical trap holds particles for on-chip analysis
Jun 30, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- A new type of optical particle trap can be used to manipulate bacteria, viruses and other particles on a chip as part of an integrated optofluidic platform. The optical trap is the latest ...
Liquid lens creates tiny flexible laser on a chip
May 11, 2009 |
2.3 / 5 (3) |
1
(PhysOrg.com) -- Like tiny Jedi knights, tunable fluidic micro lenses can focus and direct light at will to count cells, evaluate molecules or create on-chip optical tweezers, according to a team of Penn State engineers. ...
The Power of Light: Moving Macroscopic Amounts of Matter
Jan 29, 2009 |
3.3 / 5 (12) |
17
(PhysOrg.com) -- Since 1970, scientists have been working with “optical tweezers” - lasers that move microscopic amounts of matter using forces originating from the light matter interaction. Now, for the first ...
'Femtomolar Optical Tweezers' May Enable Sensitive Blood Tests
Nov 13, 2008 |
4.7 / 5 (3) |
1
(PhysOrg.com) -- Cutting-edge “tweezers” are so sensitive that they can feel the tell-tale tug of tiny concentrations of pathogens in blood samples, yet don’t ever need to be sterilized—or even held—as they ...
