biology

DNA Data Storage: Biology as Hard Drive In 2012, George Church's lab at Harvard encoded a 53,000-word book into DNA. Not a metaphor. They took the digital file—including images and JavaScript code—and converted it to DNA sequences. They synthesized those sequences, stored them in a

Xenobots: Living Robots Made from Cells In 2020, a team of researchers created something that didn't quite fit existing categories. They took cells from frog embryos—specifically, skin cells and heart cells from Xenopus laevis, the African clawed frog—and arranged them into tiny blobs, about half a

Directed Evolution: Engineering Enzymes Frances Arnold couldn't design a better enzyme. So she evolved one. In the early 1990s, Arnold was trying to engineer subtilisin—a protease enzyme used in laundry detergents—to work in organic solvents instead of water. This would be useful industrially, but it was

The Minimal Genome: How Simple Can Life Be? In 2010, Craig Venter's team announced they had created the first synthetic cell. They had chemically synthesized an entire bacterial genome—over a million base pairs—assembled it piece by piece, and transplanted it into a cell whose original genome

Synthesis: The Designed Biosphere Let's pull it together. We've traced synthetic biology from its foundations—the engineering mindset, standardized parts, design-build-test-learn—through its applications: minimal genomes, directed evolution, xenobots, DNA storage, genetic circuits, living materials. What emerges is a discipline, still young but maturing, that treats

Living Materials: Self-Healing and Growing Concrete cracks. It's one of the most ubiquitous construction materials on Earth, and it always cracks—from thermal expansion, settling, loading, age. Once cracked, water seeps in, corrodes the steel reinforcement, and the structure degrades. Maintenance is perpetual. What if the concrete could