Category Health/Medical

Spider Silk could be used as Robotic Muscle

The experimental setup used to study the behavior of spider dragline silk. The cylindrical chamber at center allowed for precise control of humidity while testing the contraction and twisting of the fiber.
Credit: Photo courtesy of the researchers

Unusual property of the ultrastrong material could be harnessed for twisting or pulling motions. Researchers have found that spider silk produces a strong twisting motion when exposed to humidity, and may be usable for future artificial muscles or actuators. Spider silk, already known as one of the strongest materials for its weight, turns out to have another unusual property that might lead to new kinds of artificial muscles or robotic actuators, researchers have found.

The resilient fibers, the team discovered, respond very strongly to ...

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Nanotechnology makes it possible for Mice to see in Infrared

This graphical abstract shows how injectable photoreceptor-binding particles with the ability to convert photons from to high-energy forms allow mice to develop infrared vision without compromising their normal vision and associated behavioral responses.
Credit: Ma et al./Current Biology

Mice with vision enhanced by nanotechnology were able to see infrared light as well as visible light, reports a study published February 28 in the journal Cell. A single injection of nanoparticles in the mice’s eyes bestowed infrared vision for up to 10 weeks with minimal side effects, allowing them to see infrared light even during the day and with enough specificity to distinguish between different shapes...

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Colon Cancer Growth reduced by Exercise

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Could short bursts of high-intensity exercise immediately reduce the growth of colorectal cancer cells?

Exercise may play a role in reducing the growth of colon cancer cells according to new research published in The Journal of Physiology. The study found that after a short session of high intensity interval training (HIIT), growth of colon cancer cells was reduced, and this also increased indicators of inflammation.

For a long time, the focus on exercise has been on the positive changes in the body that occur following a longer period of training. However, these findings suggest that the effects following a single session of HIIT, an exercise regime involving short, high energy bursts are also important...

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Mobile Bedside Bioprinter can Heal Wounds

A close up view of the skin bioprinter nozzle.
Credit: WFIRM photo

Imagine a day when a bioprinter filled with a patient’s own cells can be wheeled right to the bedside to treat large wounds or burns by printing skin, layer by layer, to begin the healing process. That day is not far off. Wake Forest Institute for Regenerative Medicine (WFIRM) scientists have created such a mobile skin bioprinting system – the first of its kind – that allows bi-layered skin to be printed directly into a wound.

“The unique aspect of this technology is the mobility of the system and the ability to provide on-site management of extensive wounds by scanning and measuring them in order to deposit the cells directly where they are needed to create skin,” said Sean Murphy, Ph.D...

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