Delbert Day is known for co-inventing radioactive glass microspheres.
Delbert Day is known for co-inventing radioactive glass microspheres. Photo by B.A. Rupert, Missouri S&T.

An expert in developing specialty glasses for use in health care, transportation infrastructure and other applications, Delbert Day is known for co-inventing radioactive glass microspheres. Now marketed as TheraSphere, Day’s product is used at over 200 sites worldwide to treat patients with inoperable liver cancer. Work by Day and other Missouri S&T researchers has led to the development of bioactive glass fibers – called Mirragen – that help speed the healing of chronic, non-healing wounds. A 1958 graduate in ceramics engineering, Day is the only S&T faculty member to be named to the National Academy of Engineering.

Share This Story

Spark a Memory?

Share your story! Fill out the form below to share your fondest memory or anecdote of S&T. If you'd prefer not typing, you can also share by phone at 833-646-3715 (833-Miner150).

Float like a butterfly

Float like a butterfly

Few have shared the ring with Muhammad Ali or been praised by the New York Times as “one of America’s…

Chase Barnes and Auburn Meister

Chase Barnes and Auburn Meister

Chase Barnes met Auburn Meister during Opening Week in August 2015 at his fraternity, Sigma Phi Epsilon. “We kept hanging…

Remembering Bataan

Remembering Bataan

Gene Boyt, who earned a degree in mechanical engineering; Robert Silhavy, ceramic engineering; and John McAnerney, civil engineering, were called…

Movie magic

Movie magic

The technology used to create Davy Jones from “Pirates of the Caribbean: Dead Man’s Chest” and characters from other films…

Kala Longman and Maxwell Rose

Kala Longman and Maxwell Rose

Kala Longman and Maxwell Rose met in 2015 thanks to mutual campus interests and a similar friend group. But it…

Cheryl D.S. Walker: engineer, curator, lawyer, poet

Cheryl D.S. Walker: engineer, curator, lawyer, poet

Cheryl D.S. Walker, who earned a bachelor’s degree in electrical engineering in 1986, has many talents and many pursuits. Dedicated…