Hidden within our bones, marrow sustains life by producing billions of blood cells daily, from oxygen-carrying red cells to immune-boosting white cells. This vital function is often disrupted in ...

The School of Engineering and Applied Science, the Perelman School of Medicine, and the Children's Hospital of Philadelphia collaborated to micro-engineer a chip that models human bone marrow. Credit: ...

Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing. For many years, ...