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

Olympic Gold Medalist Alysa Liu Has Her Eyes On A Brand New Sport

March 6, 2026

Fresh off one of the greatest comeback stories in sports history, Alysa Liu already has her next adventure in mind. The 20-year-old double gold medalist who dazzled the world with her free skate at the 2026 Milan Cortina Winter Olympics to become the first American woman to win individual figure

Read More
Happy News

Pokemon Just Turned 30, But This Little Game Was Supposed To Fail

March 6, 2026

Thirty years ago, a young Japanese game designer named Satoshi Tajiri walked into Nintendo with an idea that nobody expected to change the world. Tajiri had grown up completely obsessed with collecting insects, earning himself the childhood nickname Dr. Bug, and as the forests near his home in Tokyo were

Read More
Happy News

Escaped Dog Returns With The Proudest Walk of Shame

March 6, 2026

Ericka Tucker has a dog with one very particular and very impressive talent: the uncanny ability to slip out of a securely fenced yard without anyone witnessing exactly how she does it, earning herself the nickname the shapeshifter from her own family. After one recent great escape, however, the little

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.