MIT Technology Review’s 35 Innovators Under 35 highlights nine young scientists transforming biotech. Paschal Kija, 28, created the Mkanda Salama, a $70 device that stopped postpartum hemorrhage in 73% of women within 20 minutes, addressing a leading cause of maternal deaths in Tanzania. Xiao Yang, 34, developed flexible, neuron-like brain electrodes inspired by kirigami, using honeycombed spiral sheets to study brain cells with minimal tissue damage. Sarah Grandinette, 26, designed a personalized gene-editing therapy for baby KJ Muldoon Jr., correcting a rare genetic disorder; he responded well after his first dose at seven months. Yuancheng (Ryan) Lu, 34, advanced cellular reprogramming to reverse vision loss in mice; a similar therapy by Life Biosciences is now in human trials for eye disease. Samuel King, 27, used generative AI to design synthetic bacteriophages that replicate and infect bacteria, opening possibilities for drug development and environmental cleanup. These innovators represent the future of biotech, from maternal health to anti-aging and AI-driven biology.