Samagya Banskota grew up in a family of doctors in Nepal, aware from a young age of how physicians could change people’s lives. Today she is a biomedical engineer at Boston University, studying ways to create safer, more effective therapies for a multitude of diseases. Banskota is creating so-called viruslike particles to deliver gene-editing technologies to cells. These engineered particles have protein structures that resemble those of viruses and can target specific cells in the body, but...