Nanotechnology
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May 21 | News
A
year-long evaluation of the effect of quantum dots in primates has
found the nanoparticles to be safe, encouraging doctors and scientists
who are hoping to use them to battle diseases like cancer. Cadmium
selenide quantum dots were the variety used in the study.
May 18 | News
Scientists
had originally thought they could create a “magic bullet” to patrol for
cancer cells in the body, but only 5% of injected nanoparticles reach
the targeted tumor using current delivery techniques. A Johns Hopkins
University scientist is now working on techniques to specify
nanoparticle size and shape and improve the chances that the drug will
find its target.
May 9 | News
As medical researchers and engineers try to shrink diagnostics to fit in a person's pocket, one question is how to easily move and mix small samples of liquid. University of Washington researchers have built and patented a surface that, when shaken, moves drops along certain paths to conduct medical or environmental tests.
May 7 | News
A team of scientists, led by Lawrence Berkeley National Laboratory, has figured out how to grow light-emitting nanocrystals small enough to not disrupt cell activity but bright enough to be imaged one at a time.
May 7 | News
One
exhale and a new device from researchers at Stony Brook University in
New York could screen for anything from diabetes to lung cancer. Based
on a sensor chip built from electrospun nanowires that can detect minute
amounts of chemical compounds, the device has yet to reach clinical
trials. But its inventors anticipate the device to someday cost only
$20.
May 4 | News
Over the past several decades, scientists have faced challenges in developing new antibiotics even as bacteria have become increasingly resistant to existing drugs. One strategy that might combat such resistance would be to overwhelm bacterial defenses by using highly targeted nanoparticles to deliver large doses of existing antibiotics. In a step toward that goal, researchers have developed a nanoparticle designed to evade the immune system and home in on infection sites, then unleash a focused antibiotic attack.
May 2 | News
University of California, Los Angeles researchers and their colleagues have developed a novel screening technology that allows large batches of metal-oxide nanomaterials to be assessed quickly, based on their ability to trigger certain biological responses in cells as a result of their semiconductor properties.
Apr 30 | News
Engineers
are developing new and innovative ways of coating medical materials
with nano-sized particles of silver, an element that has long been known
for its antimicrobial properties. However, a recent paper from the
University of Notre Dame highlights the fact that a vast majority of
bacteria are actually neutral, or even beneficial. Overuse of nanosilver
might harm their useful functions in daily life, the paper reports.
Apr 26 | News
Until
the development of a new nanomaterial-based sensor in Germany, the
brain’s magnetic field was measurable only under technical laboratory
conditions. This prevented the technology’s use in medical applications.
The new sensors, however, operate at normal conditions. Neither cooling
nor external magnetic bias fields are required.
Apr 25 | News
You wouldn't know it from appearances, but a metal cube the size of a toaster, created at the University of Alberta, is capable of performing the same genetic tests as most fully equipped modern laboratories—and in a fraction of the time. At its core is a small plastic chip developed with nanotechnology that holds the key to determining whether a patient is resistant to cancer drugs or has viruses like malaria.
