Understanding how thought and emotion are realized in the human brain is a remarkable enterprise. How a mere three-pound collection of nerve cells gives rise to human art, wisdom, and passion is part of the mystery of our existence. (April 29, 2008)

Surgeons currently use common industrial materials inside the body to replace damaged body parts. However, if we want to replace more complicated body parts such as heart tissue or the spinal cord, we need better materials. (February 28, 2008)

Surgeons currently use common industrial materials inside the body to replace damaged body parts. However, if we want to replace more complicated body parts such as heart tissue or the spinal cord, we need better materials. (February 28, 2008)