# Delbert Day

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American engineer

Delbert Day Education Missouri School of Mines Pennsylvania State University Known for TheraSphere and Glasphalt co-invention Title Curator's Professor Emeritus of Materials Sciences (Missouri S&T) Spouse Shirley Ann Day (Foraker) ​ ​ (m. 1956; died 2014)​ [1] Children 2[1] Awards Distinguished Alumni Award (PSU)

**Delbert E. Day**, a Curator's Professor Emeritus of Ceramic Engineering at [Missouri University of Science and Technology](/source/Missouri_University_of_Science_and_Technology), made the first U.S. glass melting experiments in micro-gravity on [NASA](/source/NASA)'s [Space Shuttle](/source/Space_Shuttle).

Day was elected a member of the [National Academy of Engineering](/source/National_Academy_of_Engineering) in 2004 for the development of radiotherapeutic glass microspheres and their transfer to medical applications.[2][3] He is also a fellow of the [Society of Glass Technology](/source/Society_of_Glass_Technology), [American Ceramic Society](/source/American_Ceramic_Society), [National Institute of Ceramic Engineers](/source/National_Institute_of_Ceramic_Engineers), and [National Academy of Inventors](/source/National_Academy_of_Inventors).[4][5][6]

Day earned a [Bachelor of Science](/source/Bachelor_of_Science) degree in [ceramic engineering](/source/Ceramic_engineering) from the [Missouri School of Mines and Metallurgy](/source/Missouri_University_of_Science_and_Technology) (now Missouri S&T) in 1958, and a [Master of Science](/source/Master_of_Science) degree and [doctorate](/source/Doctor_of_philosophy) in ceramic technology from [Pennsylvania State University](/source/Pennsylvania_State_University) in 1959 and 1961, respectively.[7]

Day co-invented [TheraSphere](/source/TheraSphere) glass microspheres for medical and dental applications, and [Glasphalt](/source/Glasphalt) which recycles waste glass for use in [asphalt paving](/source/Asphalt_paving).[7] In 1984, Day founded the Mo-Sci Corporation in Rolla, Missouri, which manufacturers high-tech glass products; as of 2007, the company was solely owned by Day's son, Ted.[8] The company was acquired by [Heraeus](/source/Heraeus) in 2021 after Ted died in 2020.[9]

In 2011, the Delbert Day Cancer Institute was initiated at the [Phelps County](/source/Phelps_County%2C_Missouri) Regional Medical Center (now Phelps Health), funded by a gift from Day's son and daughter-in-law, Ted and Kim Day.[10] The 37,000-square-foot (3,400 m2) facility, completed in January 2017, occupies the first two floors of a new building on the north side of the medical center campus.[11]

Day and his wife, Shirley, donated to his Missouri S&T alma mater for establishment of a Day Family Endowed Scholarship in Materials Science & Engineering.[12]

In May 2019, Day received the Distinguished Alumni Award from Penn State University, their highest honor for alumni.[6]

## References

1. ^ [***a***](#cite_ref-obit_1-0) [***b***](#cite_ref-obit_1-1) ["Shirley Day Obituary"](https://www.legacy.com/us/obituaries/therolladailynews/name/shirley-day-obituary?id=23750417). *Rolla Daily News*. September 12, 2014. Retrieved August 9, 2024 – via Legacy.com.

1. **[^](#cite_ref-2)** ["Delbert Day: glass master and cancer fighter"](https://influence.mst.edu/2011/delbertday/). *Missouri S&T Alumni of Influence*. 2011. Retrieved October 16, 2024.

1. **[^](#cite_ref-3)** Stoltz, Mary Helen (December 13, 2016). ["Biomaterials expert Delbert Day named National Academy of Inventors Fellow"](https://news.mst.edu/2016/12/biomaterials-expert-delbert-day-named-national-academy-of-inventors-fellow/). *Missouri S&T News and Events*. Retrieved October 18, 2024.

1. **[^](#cite_ref-4)** ["Dr. Delbert E. Day"](https://web.archive.org/web/20180122234939/https://mse.mst.edu/facultystaffandfacilities/day/). Missouri University of Science and Technology. Archived from [the original](https://mse.mst.edu/facultystaffandfacilities/day/) on January 22, 2018. Retrieved February 10, 2018.

1. **[^](#cite_ref-5)** ["Dr. Delbert E. Day"](https://www.nae.edu/30136.aspx). National Academy of Engineering. Retrieved February 10, 2018.

1. ^ [***a***](#cite_ref-daa_6-0) [***b***](#cite_ref-daa_6-1) Carroll, Matthew (June 24, 2019). ["Earth and mineral sciences alumnus honored with Distinguished Alumni Award"](https://news.psu.edu/story/578705/2019/06/24/student-success/earth-and-mineral-sciences-alumnus-honored-distinguished). Penn State University. Retrieved August 2, 2019.

1. ^ [***a***](#cite_ref-psu_7-0) [***b***](#cite_ref-psu_7-1) ["Penn State alumnus Delbert Day named National Academy of Inventors Fellow"](http://news.psu.edu/story/457803/2017/03/24/penn-state-alumnus-delbert-day-named-national-academy-inventors-fellow). Pennsylvania State University. March 24, 2017. Retrieved February 10, 2018.

1. **[^](#cite_ref-8)** Milne, Stuart (February 27, 2015). ["Bioactive Glass: An Interview with Ted Day"](https://www.azom.com/article.aspx?ArticleID=11730). AZO materials. Retrieved February 10, 2018.

1. **[^](#cite_ref-9)** Hammerand, Jim (September 24, 2021). ["Heraeus buys Mo-Sci and ETS Technology Holdings"](https://www.medicaldesignandoutsourcing.com/heraeus-buys-mo-sci-and-ets-technology-holdings/). *Medical Design & Outsourcing*. Retrieved October 16, 2024.

1. **[^](#cite_ref-10)** ["A new Day in cancer research"](https://magazine.mst.edu/files/2012/11/SandTSpring2011-WEB.pdf#page=24) (PDF). *Missouri S&T Magazine*. Vol. 85, no. 1. Spring 2011. p. 22. Retrieved February 10, 2018.

1. **[^](#cite_ref-11)** ["McCarthy Completes Construction of Delbert Day Cancer Institute at Phelps County Regional Medical Center"](https://www.mccarthy.com/insights/mccarthy-completes-construction-delbert-day-cancer-institute-phelps-county-regional-medical) (Press release). McCarthy Building Companies. January 18, 2017. Retrieved August 1, 2019.

1. **[^](#cite_ref-12)** Missouri University of Science and Technology. ["Donors: Shirley and Delbert Day"](https://web.archive.org/web/20180211071722/https://mst.academicworks.com/donors/shirley-and-delbert-day). *AcademicWorks*. Archived from the original on February 11, 2018. Retrieved February 10, 2018.

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Adapted from the Wikipedia article [Delbert Day](https://en.wikipedia.org/wiki/Delbert_Day) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Delbert_Day?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.