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

Tiny Light-Activated Device Dissolves After Healing the Heart

A team of engineers at Northwestern University has developed the world’s smallest pacemaker—and it’s activated by light. Measuring just 1.8 millimeters wide, the rice-sized device can be injected with a syringe, then safely dissolves once its job is done. Designed especially for newborns and patients needing temporary pacing, it eliminates the risks of traditional devices that require wires and surgical removal.

What makes this pacemaker groundbreaking isn’t just its size. It’s powered by a battery formed from the body’s own fluids and activated by a soft, wearable patch that shines light through the chest to trigger gentle pulses. Once the patient’s heart stabilizes, the pacemaker naturally breaks down, leaving no trace behind. Researchers believe this innovation could one day lead to a new era of smart, dissolvable medical devices with applications beyond the heart.

PrevPreviousA Cleaner Coastline: Surprising Progress in Australia’s Plastic Fight
NextMacKenzie Scott Has Quietly Given Away $19 Billion, And She’s Not Done YetNext

Recent Articles

Happy News

Team USA Rises to 3rd Place at Olympics With Only Days Remaining

February 19, 2026

Team USA is riding high at the Milan Cortina 2026 Winter Olympics, currently sitting in third place with 24 total medals as the Games enter their final stretch. With the closing ceremony scheduled for Sunday, February 22, American athletes still have multiple opportunities to climb the medal standings and potentially

Read More
Happy News

Smart Underwear That Tracks Your Gas Was Just Invented

February 19, 2026

Scientists at the University of Maryland have created what might be the most unexpectedly useful invention of the year: smart underwear that tracks how often you pass gas, and yes, you read that correctly. The tiny device clips discreetly onto your underwear and monitors your gut bacteria activity around the

Read More
Happy News

The Olympian Who Delivered Pizzas Between League Races

February 19, 2026

A British sprinter who once ran the 100 meters in under 10 seconds while delivering pizzas to make ends meet is now competing at his third Winter Olympics representing Jamaica’s bobsleigh team after coming out of retirement. Joel Fearon stunned the athletics world by breaking the revered 10 second barrier

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.