Skip to content
  • Happy Health
  • Happy Mindset
  • Animal Wonders
  • About Us
    • Team
  • Subscribe
Menu
  • Happy Health
  • Happy Mindset
  • Animal Wonders
  • About Us
    • Team
  • Subscribe
Happy News

The Blood Robots That Sound Like Pure Science Fiction

Swiss scientists at ETH Zurich have developed tiny robots that can swim through your bloodstream and navigate directly to your brain to fight strokes, delivering medication exactly where it’s needed without flooding your entire body with high doses that cause dangerous side effects. The microscopic marvel consists of a spherical gel capsule embedded with medication and equipped with iron oxide nanoparticles that doctors can control from outside the body using magnetic fields, allowing them to steer the robot through the powerful currents of blood pumping through vessels at incredible speeds. Researchers combined three different magnetic navigation strategies that enable them to guide the robot through all regions of head arteries, a remarkable feat considering the force and velocity of blood flow that the navigation system must withstand.

Once the capsule reaches its destination, doctors heat it using a high frequency magnetic field, causing the gel structure to dissolve and release the medication precisely where it’s needed to treat strokes or tumors. The robots are also equipped with tantalum nanoparticle contrast agents that allow doctors to track their journey through the body in real time, though these particles are heavier and more difficult to control. While the technology hasn’t been tested on humans yet, it has already worked successfully in tests on pigs and a sheep, as reported in the journal Science. Lead researcher Fabian Landers marveled at the challenge, saying “it’s incredible how much blood is pumped through our vessels and at what speed,” but the breakthrough proves that targeted drug delivery that once seemed like pure science fiction is now becoming a lifesaving reality.

PrevPreviousThe Seabird Everyone Thought Was GONE Forever Just Came Home
NextPope Francis Brings Indigenous Artifacts Back To CanadaNext

Recent Articles

Happy News

Fish Communication Finally Understood By Humans

February 5, 2026

Scientists have identified and matched underwater sounds to specific fish species living off the coast of British Columbia in a discovery that could help improve how fish populations are monitored and protected. This will finally answer the age old question of what noises fish make to speak to each other

Read More
Happy News

Cows Are Even Smarter Than We Thought

February 5, 2026

Veronika the cow has amazed researchers by using a broom to scratch specific areas of her body demonstrating tool use, a skill that was not previously known to be possessed by cattle and calling into question the previous assessment of the cognitive abilities of these farm animals. Study leader Alice

Read More
Happy News

An iPhone Photo Solved A 60 Year Botanical Mystery

February 5, 2026

A plant long presumed extinct in the wild has been rediscovered in Australia ending nearly six decades without a confirmed sighting. Researchers say the small slender shrub called Ptilotus senarius had not been recorded since 1967 and was effectively written off as lost until new evidence emerged last summer on

Read More
« Previous Next »
  • Privacy Notice
  • Accessibility Notice
  • Do Not Sell or Share My Personal Information
  • Unsubscribe
  • Terms and Conditions
  • Privacy Policy
  • Privacy Notice
  • Accessibility Notice
  • Do Not Sell or Share My Personal Information
  • Unsubscribe
  • Terms and Conditions
  • Privacy Policy
Copyright © 2026 HappyNews.