Watch this human-produced 'heart' beat in mesmerizing color

Scientists are bringing the magic of the animal kingdom to the world of technology.
Researchers have created a material that can change colors just like a chameleon, Science reported. In a study published in the journal Science Robotics on Wednesday, researchers used a combination of a special gel and heart muscle cells from rats to mimic the way that chameleon skin absorbs certain wavelengths of light and reflects others. The gel is designed to have "a network of tiny pores" that allows only certain colors to appear, Science explained. With each "beat" of the heart muscles, the gel's structure changes on a microscopic level, causing different colors to be reflected by the substance.
This material could be used to test new medications, Science News reported: Because the color changes are synced to the beat of the heart cells, testing medications that change heart rate could have proof in stunning color. As scientists continue to experiment with the substance, it could even be used to build robots with the ability to camouflage themselves to blend into their environment, just like a chameleon.
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.

Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
Watch the mesmerizing gel in action below, or read more at Science. Shivani Ishwar
Sign up for Today's Best Articles in your inbox
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
Shivani is the editorial assistant at TheWeek.com and has previously written for StreetEasy and Mic.com. A graduate of the physics and journalism departments at NYU, Shivani currently lives in Brooklyn and spends free time cooking, watching TV, and taking too many selfies.
-
Book reviews: ‘Red Scare: Blacklists, McCarthyism, and the Making of Modern America’ and ‘How to End a Story: Collected Diaries, 1978–1998’
Feature A political ‘witch hunt’ and Helen Garner’s journal entries
By The Week US Published
-
The backlash against ChatGPT's Studio Ghibli filter
The Explainer The studio's charming style has become part of a nebulous social media trend
By Theara Coleman, The Week US Published
-
Why are student loan borrowers falling behind on payments?
Today's Big Question Delinquencies surge as the Trump administration upends the program
By Joel Mathis, The Week US Published
-
Myanmar quake deaths rise as survivor search intensifies
speed read The magnitude-7.7 earthquake in central Myanmar has killed a documented 2,000 people so far, and left scores more trapped beneath rubble
By Peter Weber, The Week US Published
-
'Like a sound from hell': Serbia and sonic weapons
The Explainer Half a million people sign petition alleging Serbian police used an illegal 'sound cannon' to disrupt anti-government protests
By Abby Wilson Published
-
Israel detains director after West Bank settler clash
speed read The director of Oscar-winning documentary 'No Other Land' was arrested and beaten
By Rafi Schwartz, The Week US Published
-
Turkey arrests Istanbul mayor, a top Erdogan rival
Speed Read Protests erupted in Turkey after authorities detained Istanbul Mayor Ekrem Imamoglu
By Peter Weber, The Week US Published
-
Israel strikes Gaza, breaking ceasefire
Speed Read 326 Palestinians were killed in the first major attack since Netanyahu's government signed a ceasefire agreement with Hamas
By Peter Weber, The Week US Published
-
The arrest of the Philippines' former president leaves the country's drug war in disarray
In the Spotlight Rodrigo Duterte was arrested by the ICC earlier this month
By Justin Klawans, The Week US Published
-
Houthis vow retaliation amid US airstrikes
Speed Read Trump promises the US will use 'overwhelming lethal force' against the Houthis until they stop attacking Red Sea ships
By Peter Weber, The Week US Published
-
Pakistan train hostage standoff ends in bloodshed
Speed Read Pakistan's military stormed a train hijacked by separatist militants, killing 33 attackers and rescuing hundreds of hostages
By Peter Weber, The Week US Published