Tiny pacemaker developed by scientists can fit in a syringe

Smaller than a rice grain, the dissolvable soft device is meant to help newborn babies with congenital heart defects.
By
Teodosia Dobriyanova
 on 
A collage shows the tiny pacemaker placed on a fingerprint next to a rice grain for scale; in the background, a more zoomed-in image shows the pacemaker next to a needle boar.
Watch Next
Mashable Now

From quick hits to deep dives, this Mashable series cuts through the noise to explain what on Earth is going on and what you should know about it.


Scientists at Northwestern University unveiled what may be the world's tiniest pacemaker, with new research published in Nature on Wednesday.

Smaller than a grain of rice, the soft device fits in a syringe, so that it can be inserted non-invasively. When no longer needed, the tiny pacemaker dissolves, so that there's no need for a removal surgery.

According to professor Igor Efimov, a co-lead in the study, about one percent of children worldwide are born with congenital heart defects. And though they only need a pacemaker for about a week after a surgery, after which the heart begins to self-repair, those seven days, Efimov said in a press release, are absolutely crucial.

Picture of Teodosia
Teodosia Dobriyanova
Video Producer

Teodosia is a video producer at Mashable UK, focussing on stories about climate resilience, urban development, and social good.


More from Mashable Now
A wounded sea turtle swims again thanks to 3D printed harness
Photograph shows Charlotte the sea turtle swimming under water after she's been fit with the 3D-printed harness

F1 racer takes life-size Lego car for a spin
Two McLaren P1s appear to be racing each other – the Lego-made version on the front and the original at the back. Caption reads: "Lego Racer"

Land, air, and space footage captures the surging Hurricane Milton
Satellite footage captures Hurricane Milton as is brews near Florida's West Coast


This quirky EV dates back to the 1940s
A split screen in B&W shows Peugeot's retro VLV from the back (left) and its front opened to show the E batteries' storage (right); caption reads: "Vintage EV"

Latest Videos

Ryan Coogler and Michael B. Jordan on 'Sinners' unique spin on vampirism
By Kristy Puchko and Warren Shaw
Ryan Coogler and Michael B. Jordan talking about 'Sinners'


'Until Dawn' filmmakers on 'The Last of Us' effect on video game adaptations
By Kristy Puchko and Warren Shaw
David F. Sandberg and Gary Dauberman talking 'Until Dawn'



Pedro Pascal and Bella Ramsey vibing to 'Xanadu' is deeply healing
Bella Ramsey and Pedro Pascal sit across a table from one another.

'Pee-wee as Himself' trailer: Meet Paul Reubens, the genius behind your favorite playhouse
Pee-wee Herman adjusts his bow-tie in the mirror.



'I Know What You Did Last Summer' trailer teases familiar faces, fresh slaughter
A group of teenagers sit in a car at night.
The biggest stories of the day delivered to your inbox.
These newsletters may contain advertising, deals, or affiliate links. By clicking Subscribe, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy.
Thanks for signing up. See you at your inbox!
close