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USD student invited to share research with Congress at Posters on the Hill event

VERMILLION, S.D. -- University of South Dakota student David Christianson has been selected to present his research poster at the 18th annual Posters on the Hill in Washington, D.C., April 28-29.

Christianson, from Yankton, S.D., will present the results of his research “Design of Nanoscale Compositions for Remineralization of Human Dentin,” one of only 60 posters (out of 600 applications) to be presented at this prestigious undergraduate research event. Christianson is the only student from South Dakota invited to participate at Posters on the Hill where research posters are on display to Congress, federal agency funding officers and invited guests in the Rayburn House Office Building.

Grigoriy Sereda, Ph.D., associate professor of chemistry, serves as Christianson’s mentor and supervises his undergraduate research in the field of materials chemistry, which includes application of nanoparticles in dentistry and drug delivery. In Sereda’s lab, Christianson has worked to develop Langmuir isotherms, exploring the binding affinity of various molecular functional groups to titanium dioxide nanoparticles.

“In the laboratory, David has demonstrated the ability to perform sound scientific research,” Sereda noted. “Perhaps, more importantly, David has the ability to think abstractly and offer potential solutions to conceptual problems. This contribution of insight has led to some of the research that my group has performed this last year, specifically the functionalization of silk floss as a pH indicator which is one of our group’s intellectual disclosures submitted this year to USD. David is listed as a co-inventor of this work.”

Sereda will accompany Christianson to Washington, D.C. as they serve as advocates for science and education in South Dakota as they meet with lawmakers. Posters on the Hill provide students like Christianson an opportunity to also share personal stories and their discoveries with members of Congress and professional scientists. A photo of Christianson is available for download at


Founded in 1862 and the first university in the Dakotas, the University of South Dakota is the only public liberal arts university in the state, with 202 undergraduate and 78 graduate programs in the College of Arts & Sciences, School of Education, Knudson School of Law, Sanford School of Medicine, School of Health Sciences, Beacom School of Business and College of Fine Arts. With an enrollment of nearly 10,000 students and more than 400 faculty, USD has a 16:1 student/faculty ratio, and it ranks among the best in academics and affordability. USD’s 18 athletic programs compete at the NCAA Division I level.

This material is available in an alternate format upon request. Please contact University Relations at 605-677-5759. If you are a person with a disability and need a special accommodation to fully participate in any university activity or event, please contact Disability Services at 605-677-6389 as soon as possible, but no later than 48 hours before the event, so that appropriate arrangements may be made.


Hanna DeLange
USD News