The University of Toronto's Molly Shoichet, a cell and tissue engineer, has made groundbreaking contributions to medicine and research. Her journey began with a fascination for polymers, which led her to abandon medical school and pursue a PhD in polymer science and engineering. Shoichet's research focuses on hydrogels, polymer chains that can absorb large amounts of water, enabling slow medication release, stem cell impact, and access to hard-to-reach areas like the retina and brain. She has founded startups, won awards, and made breakthroughs in spinal cord injuries, blindness, post-operative pain, stroke, and cancer. Her leadership roles include serving as Ontario's chief scientist and scientific director of various initiatives at U of T. Shoichet's dedication to the next generation of researchers is evident through her lab's tradition of hanging PhD graduates' names on lab coats. Her impact extends beyond academia, as she has been inducted into Canada's national academies and recognized with prestigious awards for her scientific and engineering contributions.