Nanomedicine
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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 15 | News
Scientists
at Weill Cornell Medical College have discovered that the single
protein, alpha 2 delta, exerts a spigot-like function that controls the
volume of neurotransmitters and other chemicals that flow between the
synapses of brain neurons. The surprising finding tells us not only how
brain cells communicate, but also how a certain pain drug works.
May 14 | News
A
research team at Rutgers University has been able to take a new
pharmacological approach to activate the immune cells to prevent cancer
growth through stimulation of the opiate receptors found on immune
cells.
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 1 | News
With
the development of synchrotron infrared spectroscopy, scientists at
Lawrence Berkeley National Laboratory have observed, in real time the
process of protein phosphorylation—a chemical interaction that controls
everything from cell proliferation to differentiation to metabolism—in
living cells stimulated by nerve growth factor.
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
Researchers
at Northwestern University's Department of Radiation Oncology and
Argonne National Laboratory recently deployed a new non-destructive
X-ray microscopy solution from Xradia to image cryogenically preserved
cells and advance studies of intra-cellular biology.
Apr 24 | News
Engineers
at the University of Sheffield have developed a method of making
medical devices called nerve guidance conduits. Based on laser direct
writing, which enables the fabrication of complex structures from
computer files via the use of CAD/CAM, the polymer-based material will
assist nerves damaged by traumatic accidents to repair naturally.
Apr 10 | News
Combining two strategies that are designed to improve the results of cancer treatment—angiogenesis inhibitors and nanomedicines—may only be successful if the smallest nanomedicines are used. A new study by researchers at Harvard University and Massachusetts General Hospital has found that normalizing blood vessels within tumors can actually block the delivery of larger nanotherapy molecules.
