Thanks to researchers at the University of California, Davis and SRI International, people suffering from stroke, Mobius Syndrome, or battlefield injuries can now gain control over the muscles in their face. They have proved that Implanting an artificial muscle in the temple area could enable people to wink and eventually smile again. So far, they have successfully experimented on cadavers.

Highlights of the study
a. This study was conducted on cadavers.
b. Researchers made an incision and implanted a "sling" of Gore-Tex, a waterproof and breathable fabric found in trousers and jackets.
c. Researchers then placed another sling at the lower eye by using a similar incision used for a lower eyelid reduction.
d. Both slings were anchored by the nose and attached to an artificial muscle hidden in the temple.
e. This artificial muscle consisted of a soft acrylic or silicon centre sandwiched between two layers of charged, FDA-approved black silicon.
f. Researchers passed an electric current through the silicon to draw the two outer layers together.
g. This squishes the soft inner layer into four to five times its original size.
h. This draws the sling back and closes the eye.
i. Researchers say that a similar procedure could be used to draw up the corners of the mouth into a smile.