Muscle relaxants delivered to the ureter can reduce contractions that cause pain when passing a stone.

Gel cushion used to elevate polyps during endoscopy could reduce the risk of tearing the colon lining.

Noninvasive device could benefit patients with kidney disease, congestive heart failure, or dehydration.

Technique could improve machine-learning tasks in protein design, drug testing, and other applications.

Neural network that securely finds potential drugs could encourage large-scale pooling of sensitive data.