Three scientists were awarded this year’s Nobel Prize in Chemistry for developing a groundbreaking method to “snap molecules together,” enabling advances in cell exploration, DNA mapping, and precision drug design for diseases like cancer.
Carolyn R. Bertozzi, K. Barry Sharpless, and Morten Meldal were recognized for their work on click chemistry, described as “molecular Lego.” Sharpless, who also won a Nobel in 2001, first introduced the concept of using chemical “buckles” to connect molecules, while Meldal and Sharpless independently identified ideal candidates for these reactions. These discoveries paved the way for applications in medicine and materials science.

Bertozzi elevated click chemistry by adapting it for use in living organisms, avoiding toxic catalysts like copper. Her innovation allows scientists to track cancer cells and develop treatments that target specific tissues, potentially transforming personalized medicine.
The Nobel committee noted the broader implications of this work, highlighting its potential to solve major challenges in chemistry and biology. “This is an incredible opportunity to inspire young scientists,” Meldal said. Bertozzi echoed the sentiment, expressing gratitude for the newfound energy and attention the prize brings to the field.

Sharpless attributed his success to curiosity and a love for the periodic table. “Prizes aren’t why I do science. It’s a compulsion,” he said. His collaborators believe click chemistry’s applications are just beginning, with much more to be discovered.
This year’s Nobel announcements continue with literature, peace, and economics prizes later this week. Winners receive a cash award of 10 million Swedish kronor (nearly $900,000), to be presented on December 10, the anniversary of Alfred Nobel’s death.