Plants native to the Mojave Desert may one day help provide relief to millions of people who suffer from two prominent tropical diseases.
Image of dotted dalea (Psorothamnus polydenius). Source: http://ww1.clunet.edu/wf/
Scientists at Ohio State University found that extracts of the dotted dalea (Psorothamnus polydenius) and the Mojave dalea (Psorothamnus arborescens) can kill the parasites, which are a kind of protozoa that cause the diseases leishmaniasis and African sleeping sickness. While both diseases are rare in North America, they are prevalent in dozens of countries worldwide, particularly developing nations. If left untreated, the diseases can be fatal.
The drugs currently used to treat both illnesses are costly and some are toxic, said Karl Werbovetz, a study co-author and an assistant professor of medicinal chemistry and pharmacognosy at Ohio State. Also, the chance of these parasites developing resistance to these medications is increasing.
Karl Werbovetz | EurekAlert!
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Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
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The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
An interdisciplinary group of researchers interfaced individual bacteria with a computer to build a hybrid bio-digital circuit - Study published in Nature Communications
Scientists at the Institute of Science and Technology Austria (IST Austria) have managed to control the behavior of individual bacteria by connecting them to a...
Physicists in the Laboratory for Attosecond Physics (run jointly by LMU Munich and the Max Planck Institute for Quantum Optics) have developed an attosecond electron microscope that allows them to visualize the dispersion of light in time and space, and observe the motions of electrons in atoms.
The most basic of all physical interactions in nature is that between light and matter. This interaction takes place in attosecond times (i.e. billionths of a...
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