Posts Tagged ‘quantum dots’
Optical transistors: Why quantum dots could be key
MCGILL U. (CAN) — Researchers have taken an early first step toward developing an optical transistor by showing a new way to control light in the semiconductor nanocrystals known as “quantum dots.” Continue…
Tuesday, April 9, 2013 15:14 - 0 Comments
Health & Medicine - Mar 27, 2013 14:05 - 0 Comments
Color-code test finds 10x more biomarkers
U. WASHINGTON (US) — A new method for color-coding cells lets scientists illuminate 100 biomarkers to help analyze individual cells from cultures or tissue biopsies. (more…)
Science & Technology - Nov 26, 2012 13:05 - 0 Comments
‘Lava dots’ made from molten metal salt
RICE (US) — Thanks to a chance discovery, scientists now know how to make hollow, coated versions of a nanotech staple called quantum dots. (more…)
Science & Technology - Aug 27, 2012 11:48 - 0 Comments
Nano-scale analysis without the destruction
U. SHEFFIELD (UK) — With a new tool, scientists can analyze nanostructures at an unprecedented level of detail without destroying them in the process, say researchers. (more…)
Science & Technology - Jul 30, 2012 13:56 - 18 Comments
Solar cell breaks world record for efficiency
U. TORONTO (CAN) — Engineers have used inexpensive materials to create a solar cell certified at a world-record 7.0 percent efficiency. (more…)
Health & Medicine - Jun 28, 2012 11:25 - 0 Comments
Tag serotonin ‘vacuums’ to track depression
VANDERBILT (US) — Scientists are using tiny fluorescent beads to track a protein that regulates serotonin, a neurotransmitter that plays a key role in mood, appetite, and sleep. (more…)
Health & Medicine - May 21, 2012 10:06 - 0 Comments
Quantum dots may safely treat cancer
U. BUFFALO (US) — Quantum dots may hold promise as tools for treating and detecting diseases like cancer, new research shows. (more…)
Science & Technology - May 9, 2012 14:40 - 0 Comments
Quantum dots shine brighter with acid
VANDERBILT (US) — Researchers have successfully boosted the fluorescent efficiency of white-light quantum dots from an original level of three percent to as high as 45 percent. (more…)
Science & Technology - May 8, 2012 12:12 - 0 Comments
Could bacteria build better computers?
U. LEEDS (UK) — Bacteria that make magnets and wires may someday help build environmentally friendly computers with larger hard drives and faster connections. (more…)
Science & Technology - Jan 17, 2012 12:54 - 0 Comments
Carbon fibers yield graphene quantum dots
RICE (US) — Scientists have developed a one-step chemical process to turn carbon fibers into graphene quantum dots. (more…)
Science & Technology - Dec 8, 2011 8:15 - 0 Comments
Bottle brush molecules filter impurities
U. BUFFALO (US) — Chemists have found a way to create tiny, tube-shaped molecular cages to capture and purify nanomaterials. (more…)
Science & Technology - Jul 20, 2011 10:55 - 0 Comments
Quantum dots leak toxic guts
U. BUFFALO (US) — In their afterlife, quantum dots made from cadmium and selenium release toxic ions into the earth within 15 days of entering the soil. (more…)
Science & Technology - Jul 5, 2011 9:55 - 2 Comments
Tug-of-war gives electrons new spin
U. BUFFALO (US) — At very small scales, it may be possible to create quantum dots that are magnetic, even if their electrons have opposing spins. (more…)
Science & Technology - May 17, 2011 12:29 - 0 Comments
Laser has more bang, less bulk
STANFORD (US) — In a push toward smaller, faster data transmission, researchers have produced a nanoscale laser that is much faster and vastly more energy efficient than anything available today. (more…)
Science & Technology - Mar 1, 2011 9:41 - 0 Comments
One layer triples solar cell prowess
STANFORD (US) — Adding a single layer of organic molecules less than a nanometer thick improves the efficiency of solar cells threefold and could possibly lead to less expensive, more efficient solar panels. (more…)
Science & Technology - Nov 2, 2010 13:17 - 2 Comments
Quantum dots carry drugs sans damage
U. BUFFALO (US) — A novel technology using quantum dots is expected to have major implications for research and treatment of tuberculosis, as well as other inflammatory lung diseases. (more…)
Science & Technology - Aug 25, 2010 14:48 - 1 Comment
Are atom-scale devices on the horizon?
MCGILL (CAN)—Researchers have discovered how to control the piezoelectric effect in nanoscale semiconductors called “quantum dots,” enabling the development of incredibly tiny new products. (more…)
Health & Medicine - Jul 8, 2010 12:01 - 1 Comment
Quantum dots detect rare cancer cells
EMORY/GEORGIA TECH (US)—Scientists have demonstrated that quantum dots—tunable fluorescent nanoparticles—make ideal tools for distinguishing and identifying rare cancer cells in tissue biopsies. (more…)
Science & Technology - Jun 21, 2010 15:21 - 2 Comments
Can quantum dots stop heat loss in solar cells?
U. MINNESOTA (US)—Researchers have cleared a major hurdle in the drive to build solar cells with potential efficiencies up to twice as high as current levels, which rarely exceed 30 percent. (more…)
