Hearing loss has many causes including genetic disorders, extended exposure to dangerously loud sounds and normal aging. Hearing aids can’t repair the damage regardless of the cause. Taking a different approach that uses biology and technology, researchers at Princeton are developing a bionic ear that contains biological and electronic materials, including bovine or cow cells, silicone, and silver nanoparticles. The structure of cartilage cells from cows is similar to that of human cells, and bovine cells are much easier to obtain.
Alzheimer's Disease (AD) is a form of dementia that results in memory loss and the decline in other cognitive functions. Scientists have recently discovered nanobodies in camels that can possibly serve as transporters to deliver medicine directly to the brains of patients suffering with Alzheimer's.