A mechanical hand utilizing DARPA-developed neural technologies has
become the first to allow a paralyzed patient to feel physical
sensations through a prosthesis. The 28 year-old test subject was able
to determine which mechanical finger was being touched whilst
blindfolded, with total accuracy.
We've previously heard about wound dressings that kill bacteria,
but now researchers at Australia's Swinburne University of Technology are
taking a different approach. They're creating a dressing material that
attracts bacteria out from within the wound, so that the material and
the microbes can then just be pulled off and discarded.
Working with a team of UCLA scientists, a man with protracted and complete paralysis has recovered sufficient voluntary control to take charge of a bionic exoskeleton and take many thousands of steps. Using a non-invasive spinal stimulation system that requires no surgery, this is claimed to be the first time that a person with such a comprehensive disability has been able to actively and voluntarily walk with such a device.
We've already heard about an electronics-packing mouthguard that can be used to detect serious impacts to the head.
Now, scientists at the University of California, San Diego have
developed one that could provide continuous readings of users' health
markers including lactate, cortisol and uric acid. It may be used to
monitor the well-being of people such as diabetics, to track the
performance of athletes, or to detect stress in soldiers.
A new system for growing heart tissue in the lab may make future heart, liver, and lung repair much easier. University of Toronto scientists have developed asymmetrical honeycomb-shaped 2D meshes of protein scaffolding that stick together like Velcro and imitate the environments in which tissue and muscle cells grow in the body.
A robot-assisted system developed at the University of Twente promises
to make medical procedures that use needles more precise. The system
allows flexible needles to be steered in real time to their target,
which negates issues with tissue and organs deforming from the contact
pressure or from any unforeseen obstacles that lie between the needle
and its target.
Norovirus is a nasty bug that brings about inflammation in the stomach and intestines leading to pain, nausea, diarrhea and sometimes even death. It affects around 20 million people per year in the US, but despite its rampant nature, questions remain over how exactly it is transmitted. To shed further light on how one of the world's most common pathogens spreads between humans, scientists have built a vomiting machine to study its behaviour when projected into the air.
If someone is wheezing, it usually means that they have a respiratory problem. Soon, however, a wheeze-analyzing wearable device may allow doctors to know what sort of respiratory problem a patient has – and how serious it is.
"Ignorance is bliss," so the old saying goes, but who wouldn't give their brainpower a boost if they had the chance? By altering a single gene to inhibit the activity of an enzyme called phosphodiesterase (PDE4B), researchers have given mice the opportunity to see what an increase in intelligence is like. While many people would welcome such a treatment, the scientists say their research could lead to new treatments for those with cognitive disorders and age-related cognitive decline.
Because they often have weakened immune systems and/or blood flow
restrictions, diabetics run a heightened risk of serious infection from
even the smallest of open wounds. That's why a team of scientists from
Egypt's Alexandria University have developed a means of getting those
wounds to heal faster – silver-impregnated dressings.