Posts Tagged ‘lasers’
Tiny probe beams light into single cell
STANFORD (US) — Very small, sophisticated devices known as light resonators can be inserted inside cells without damaging them, a new study proves. Continue…
Monday, February 18, 2013 15:32 - 0 Comments
Science & Technology - Jan 4, 2013 9:57 - 0 Comments
Short laser pulses ‘tune’ gold nanoparticles
RICE (US) — At different wavelengths, pulsed laser light can individually activate different types of nanoparticles—in this case, shells, rods, and solid spheres mixed together. (more…)
Health & Medicine - Dec 27, 2012 13:33 - 1 Comment
Invisible ‘knife’ focuses sound waves to slice
U. MICHIGAN (US) — A lens coated in carbon nanotubes that converts light to sound may eventually lead to an invisible scalpel for noninvasive surgery. (more…)
Science & Technology - Dec 24, 2012 11:57 - 0 Comments
To check the time, force molecules to ‘chill’
COLUMBIA U. (US) — Scientists have created a new type of ultracold strontium molecule, made of pairs of atoms cooled to nearly absolute zero, or close to minus 460 degrees Fahrenheit. (more…)
Top Stories - Dec 10, 2012 16:17 - 1 Comment
Zapped by laser, nanobubbles kill cancer
RICE (US) — Activated by a pulse of laser light, nanobubbles can kill diseased cells while leaving healthy cells untouched. (more…)
Health & Medicine - Nov 30, 2012 12:27 - 1 Comment
‘Stunningly clear’ view of blood vessels
STANFORD (US) — A new technique that uses carbon nanotubes and lasers allows researchers to view pulsing blood vessels of living animals with unprecedented clarity. (more…)
Science & Technology - Nov 27, 2012 16:36 - 0 Comments
Scotch tape ‘smart’ claw grabs water
PURDUE (US) — After the holiday gift wrapping is done, Scotch tape may have a new job as a shape-changing “smart material” that can collect water samples for environmental testing. (more…)
Health & Medicine - Nov 21, 2012 14:51 - 0 Comments
Tiny probes light up to spot signs of disease
WASHINGTON U.-ST. LOUIS (US) — Scientists have designed very small probes that can bind to biomarkers of disease and, when swept by an infrared laser, light up to reveal their location. (more…)
Top Stories - Nov 19, 2012 11:33 - 2 Comments
Tractor beam is ‘science fiction made real’
NYU (US) — A tractor beam can pull microscopic particles and has a range of potential uses, from microfluidics to far-out tasks like grabbing dust from comet tails. (more…)
Top Stories - Nov 6, 2012 12:15 - 1 Comment
This laser is as small as a virus
NORTHWESTERN (US) — Researchers have created miniature laser devices that are the size of a virus particle and that operate at room temperature. (more…)
Science & Technology - Oct 22, 2012 11:58 - 0 Comments
Nano-origami: RNA folding in real time
STANFORD (US) — Optical tweezers and sub-nanoscale precision have allowed biophysicists to follow the process—and the consequences—of RNA folding in real time. (more…)
Science & Technology - Oct 22, 2012 9:49 - 0 Comments
‘Motion detector’ shrinks to microscale
CALTECH / U. ROCHESTER (US) — A new class of microsensors could be used in consumer electronics, as well as oil and gas exploration and biomedical situations in which more traditional sensors can’t operate. (more…)
Top Stories - Oct 15, 2012 11:18 - 1 Comment
Laser pulses freeze electrons in motion
U. ARIZONA (US) — Physicists have used the world’s fastest laser pulses to freeze the motion of electrons and atoms. (more…)
Top Stories - Sep 21, 2012 11:38 - 0 Comments
Laser zooms in on tiny molecules
UC SANTA BARBARA / USC (US) — A new laser-powered spectrometer will allow scientists to study tiny moving molecules at very high resolution. (more…)
Health & Medicine - Aug 13, 2012 15:06 - 0 Comments
Markers could help lasers find skin cancer
U. MISSOURI (US) — Attaching “enhancers” to cancer cells could help photoacoustic scans, which use lasers to detect early signs of melanoma, identify other types of cancer. (more…)
Science & Technology - Jul 27, 2012 12:02 - 0 Comments
New nano-laser sets the record for tiny
U. TEXAS – AUSTIN (US) — Physicists have developed the world’s smallest semiconductor laser, a breakthrough for emerging photonic technology with applications from computing to medicine. (more…)
Science & Technology - Jul 27, 2012 11:50 - 0 Comments
Tiny electronics take big hits from radiation
VANDERBILT (US) — The amount of damage that radiation causes in electronic materials may be at least 10 times greater than previously thought. (more…)
Top Stories - Jun 27, 2012 10:32 - 1 Comment
Laser scalpel would leave skin unharmed
CALTECH (US) — A new way to focus light into tissue paves the way for incision-free surgery that leaves skin intact. (more…)
Science & Technology - May 2, 2012 10:35 - 0 Comments
Quantum ‘nail polish’ yields laser lights
BROWN (US) — Engineers can now produce red, green, and blue laser light from a single type of nanoscale crystal, which could lead to more colorful digital displays. (more…)
