Category Health/Medical

Smart Microrobots that can Adapt to their Surroundings

Scientists at EPFL and ETH Zurich have developed tiny elastic robots that can change shape depending on their surroundings.
Credit: EPFL

One day we may be able to ingest tiny robots that deliver drugs directly to diseased tissue, thanks to research being carried out at EPFL and ETH Zurich. The group of scientists – led by Selman Sakar at EPFL and Bradley Nelson at ETH Zurich – drew inspiration from bacteria to design smart, biocompatible microrobots that are highly flexible. Because these devices are able to swim through fluids and modify their shape when needed, they can pass through narrow blood vessels and intricate systems without compromising on speed or maneuverability...

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Fighting Deadly Drug Resistant Bacteria in Intestines with New Antibiotic

Illustration of a Clostridium difficile bacterium
Credit: CDC/ James Archer

A new antibiotic developed by a Flinders University researcher is being heralded as a breakthrough in the war against a drug resistant superbug. Bacteria are winning the fight against antibiotics as they evolve to fight off traditional treatments, threatening decades of advancements in modern medicine, with predictions they will kill over 10 million people by 2050. The scientific development of new, effective and safe antibiotics is crucial in addressing the ever-growing threat posed by drug resistant bacteria around the world.

Clostridium difficile infection (CDI) is a potentially deadly infection in the large intestine most common in people who need to take antibiotics for a long period of time, particularly ...

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Engineered Light to Improve Health, Food

Taking the lid off led light: Sandia National Laboratories researcher Jeff Tsao and coauthors say that controlled lighting at LED wavelengths and intensities has nearly unlimited potential for social and scientific advances.
Credit: Courtesy Sandia National Laboratories, photographer Randy Montoya

Intentionally controlled light can help regulate human health and productivity by eliciting various hormonal responses. Tailored LED wavelengths and intensities also can efficiently stimulate plant growth, alter their shapes and increase their nutritional value, opening a new world of scientific and technological possibilities for indoor farming.

“LED lighting is only in its infancy,” the authors write. “We now stand at the threshold of what might be called engineered light.”
“That’s not to ig...

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Novel Materials Convert Visible into Infrared Light

Billions of molecular lightbulbs, powered by invisible infrared photons, generate visible light.
Credit: Melissa Ann Ashley

Discovery opens up new routes for photodynamic therapy and drug development. Columbia University scientists, in collaboration with researchers from Harvard, have succeeded in developing a chemical process to convert visible light into infrared energy, allowing innocuous radiation to penetrate living tissue and other materials without the damage caused by high-intensity light exposure.

“The findings are exciting because we were able to perform a series of complex chemical transformations that usually require high-energy, visible light using a noninvasive, infrared light source,” said Tomislav Rovis, professor of chemistry at Columbia and co-author of the study...

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