Posts Tagged ‘gold’
Cow blood prevents globs of nano gold
RICE (US) — A protein from bovine blood can keep gold nanoparticles from clumping in a solution—a discovery that could lead to improved biomedical applications. Continue…
Wednesday, May 15, 2013 16:06 - 1 Comment
Health & Medicine - Apr 19, 2013 11:07 - 0 Comments
Are those tiny gold particles bad for you?
STONY BROOK (US) — Pure gold nanoparticles found in everyday items such as personal care products can inhibit fat storage, slow wound healing, and accelerate wrinkling. (more…)
Science & Technology - Mar 19, 2013 15:46 - 1 Comment
Do earthquakes have the Midas touch?
U. QUEENSLAND (AUS) — Earthquakes may be one of the primary ways that gold and quartz deposits form, a new study suggests. (more…)
Health & Medicine - Feb 5, 2013 12:30 - 0 Comments
Gold shell keeps radiation in one spot
U. MISSOURI (US) — Scientists have created a gold-plated nanoparticle “holding cell” for intense radioactive particles that keeps them in place at the cancer site. (more…)
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…)
Top Stories - Dec 10, 2012 11:48 - 0 Comments
‘Waveguide’ emits tiny point of light
CALTECH (US) — A new device can focus light into a point just a few nanometers across and may lead to next-generation applications in computing and imaging. (more…)
Society & Culture - Nov 1, 2012 12:23 - 5 Comments
For 8 million US households, pawn shops pay
VANDERBILT (US) — The pawn shop—once a somewhat shady last resort to hawk jewelry for quick cash—has evolved into a viable alternative for families with bad credit under economic stress. (more…)
Health & Medicine - Aug 29, 2012 9:11 - 0 Comments
Gold ‘hot spot’ sensor catches tiniest virus
NYU (US) — A new ultra-sensitive biosensor can identify the smallest single virus particles in solution, which could shrink the wait for test results from weeks to minutes. (more…)
Health & Medicine - Jul 16, 2012 16:15 - 0 Comments
Prostate cancer drug derived from tea, gold
U. MISSOURI (US) — Scientists have found a more efficient way to target prostate tumors—gold nanoparticles and a compound found in tea leaves. (more…)
Science & Technology - Sep 20, 2011 14:02 - 2 Comments
Fatal attraction: Cells ingest nanotubes
BROWN U. (US) — Carbon nanotubes and other long nanomaterials can spell trouble for cells. The reason: Cells mistake them for spheres and try to engulf them. (more…)
Science & Technology - Aug 30, 2011 11:06 - 0 Comments
Gold wires get ‘brittle-like’ at nanoscale
RICE (US) — Tiny gold wires often used in high-end electronic applications are known for being flexible and conductive—qualities that don’t necessarily apply at the nanoscale. (more…)
Science & Technology - Jul 14, 2011 16:44 - 0 Comments
Tiniest gold has strength of Goliath
U. BUFFALO (US) — At an atomic scale, the narrowest bridge of gold, made of a single atom, is paradoxically the strongest, according to new research. (more…)
Earth & Environment - Apr 22, 2011 16:52 - 7 Comments
Gold rush stripping Peruvian Amazon
DUKE (US) — Deforestation in parts of the Peruvian Amazon has increased six-fold in recent years, as small-scale miners, enticed by record gold prices, blast and clear the lowland rainforest. (more…)
Science & Technology - Feb 15, 2010 12:50 - 0 Comments
Gold nanowire bond stays strong naturally
RICE (US)—Welding uses heat to join pieces of metal in everything from circuits to skyscrapers. But researchers have found a way to beat the heat on the nanoscale. (more…)
Science & Technology - Jul 30, 2009 14:41 - 0 Comments
Golden combo yields do-it-all nanotool
U. WASHINGTON (US)—Think of it as the Swiss Army knife approach to nanotechnology. Researchers have combined two nanoparticles into one tiny package the could be used for a range of applications—from medical imaging to solar cells. (more…)
Science & Technology - May 27, 2009 12:28 - 0 Comments
Nanocircuits built with ‘hairy’ DNA sheets
CORNELL (US)—Researchers have created thin sheets of gold nanoparticles held together by strands of DNA. The work could prove useful for making thin transistors or other electronic devices. (more…)
