The object
Sangeeta N. Bhatia invented a microfabricated microliver device that patterns human liver cells into stable functional tissue for drug-safety testing. Lemelson-MIT documents the patented device's manufacture and use by pharmaceutical companies, while MIT reports Bhatia's continuing liver-tissue engineering work in 2026.
What Sangeeta did
Invented microfabricated human microliver devices for drug-safety and disease testing.
Why it matters
The microliver transformed otherwise short-lived liver cells into a manufacturable testing device that can reveal toxicity before clinical trials.
Living-status check
MIT published a March 2026 report naming Bhatia as senior author and leader of injectable engineered-liver research.