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Bloodstream

Researchers have been experimenting with real micro-sized robots that literally swim throu...

In the 1960s science fiction film Fantastic Voyage, audiences thrilled to the idea of shrinking a submarine and the people inside it to microscopic dimensions and injecting it into a person’s bloodstream. At the time it was just fantasy and as fantastic an idea as its title suggested. Today, however, micro-miniature travelers in your body have come one step closer to reality. Researchers from the Max Planck Institute have been experimenting with real micro-sized robots that literally swim through your bodily fluids and could be used to deliver drugs or other medical relief in a highly-targeted way.  Read More

Johns Hopkins engineers have developed a device that provides new insights into how  cance...

There is not a lot known about how exactly tumor cells travel to different parts of the body to form secondary cancers, a process known as metastasis. But now engineers from John Hopkins University have created a device that is offering an entirely new perspective, allowing researchers an up-close look at the cells as they spread and potentially unearthing new methods of treatment.  Read More

The 3D printed liver mimicking device completely neutralizes toxins in the blood (Image: U...

What if you could 3D print small devices that mimicked some of the functions of human organs, to address specific issues? That's what scientists at the University of California, San Diego have done by 3D-printing a liver-like device that's claimed capable of safely detoxifying blood.  Read More

The prototype MEDIC device

Figuring out how much medication a patient should be taking can be a tricky business. Although things like age and weight are used as guidelines, factors such as the individual person's metabolism can have a marked effect on how effective the drugs are. With that in mind, scientists at the University of California, Santa Barbara have developed an implantable device that provides continuous real-time readings on how much medication is currently in a person's bloodstream.  Read More

A rendering of the nanosponges attracting bloodstream-borne toxins

If you’ve seen many old westerns, then you’ll likely have watched a few scenes where one cowboy has to suck rattlesnake venom out of another one’s leg. Things would have been much easier for those cowboys if nanosponges had been around at the time. Developed by scientists at the University of California, San Diego, the tiny sponges mimic red blood cells, and are able to soak up lethal toxins – including snake venom and bacteria – from the bloodstream.  Read More

A syringe containing the oxygen microparticle solution

Six years ago, Dr. John Khier of Boston Children’s Hospital began investigating the idea of using injectable oxygen on patients whose lungs were incapacitated or whose airways were blocked. He was prompted to do so after a young girl that he was caring for passed away – she succumbed to a brain injury, which resulted when severe pneumonia caused her lungs to stop working properly, which in turn caused her blood oxygen levels to drop too low. Now, Khier is reporting that his team has injected gas-filled microparticles into the bloodstreams of oxygen-deprived lab animals, successfully raising their oxygen levels back to normal levels within seconds.  Read More

Wirelessly powered self propelled medical implants could be used to transport drugs and se...

With the wait still on for a miniaturization ray to allow some Fantastic Voyage-style medical procedures by doctors in submarines, tiny electronic implants capable of traveling in the bloodstream show much more promise. While the miniaturization of electronic and mechanical components now makes such devices feasible, the lack of a comparable reduction in battery size has held things back. Now engineers at Stanford University have demonstrated a tiny, self-propelled medical device that would be wirelessly powered from outside the body, enabling devices small enough to move through the bloodstream.  Read More

A new device known as NIRS uses light to non-invasively monitor blood oxygenation in the b...

Approximately one third of stroke patients experience another stroke while they’re still in the hospital. Nurses therefore keep a close eye on them, and arrange for them to be taken for tests if a subsequent stroke is suspected. Unfortunately these tests can be invasive, and in some cases are even potentially harmful to the patient. A new device being developed at the Mayo Clinic in Florida, however, could watch for strokes simply by shining light onto a patient’s forehead.  Read More

The growth of these blood vessels was caused and directed by the microvascular stamp

In the not-too-distant future, wounds may be covered not just with regular bandages, but with special "microvascular stamps" that promote and direct the growth of new blood vessels. A team of scientists from the University of Illinois have already created such a dressing, which could ultimately have applications far beyond the healing of cuts.  Read More

A nanoparticle-based process allows blood clots to show up on a new type of CT scan (Image...

Every year, millions of people come into emergency rooms complaining of chest pains, yet those pains are only sometimes due to heart attacks. Unfortunately in many of those cases, the only way to be sure of what’s going on is to admit the patient for an overnight stay, and administer time-consuming and costly tests. Now, however, a new procedure could reveal the presence and location of a blood clot within hours. It’s made possible by the injection of nanoparticles, each containing a million atoms of bismuth – a toxic heavy metal.  Read More

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