Demetra Chengelis Czegan PhD

 
 
Assistant Professor of Chemistry
Seton Hill Faculty
 
 

About

Joined Seton Hill: 2009
Hometown: Ashland, OH
Personal Areas of Interest:
Academic Areas of Interest: Chemistry, Inorganic Chemistry, Analytical Chemistry, Instrumental Analysis, Physics; Art Conservation & Conservation Science, Spectroscopy, Inorganic nanomaterials

Education

  • Ph.D., University of Pittsburgh
  • M.S., University of Pittsburgh
  • B.A., Seton Hill University

Publications

  • Chengelis, D. A.; Yingling, A. M.; Badger, P. D.; Shade, C. M.; Petoud, S. “Incorporating lanthanide cations with cadmium selenide nanocrystals: A strategy to sensitize and protect Tb(III)” J. Am. Chem. Soc., 127(48) pp 16752-3, 2005
  • Chengelis, D. A.; Yingling, A. M.; Filipczyk, G.; Petoud, S. “Lanthanide complexes with more intense luminescence: a strategy for the formation of polymetallic lanthanide dendrimer complexes and semiconductor nanocrystal compounds,” Proc. SPIE, 6370(34), 2006
  • Zhang, J.; Shade, C. M.; Chengelis, D. A.; Petoud S. “A strategy to protect and sensitize near infrared luminescent Nd3+ and Yb3+: Organic tropolonate ligands for the sensitization of Ln3+ doped NaYF4 Nanocrystals,” J. Am. Chem. Soc., 129(48) pp 14834-5, 2007
  • White, K. A.; Chengelis, D. A.; Zeller, M.; Geib, S. J.; Szakos, J.; Petoud, S.; Rosi, N. L. “Near-infrared emitting ytterbium metal–organic frameworks with tunable excitation properties,” Chem. Commun., 30, pp. 4506-8, 2009
  • White, K. A.; Chengelis, D. A.; Gogick, K. A.; Stehman, J.; Rosi, N. L.; Petoud, S. “Near-infrared luminescent lanthanide MOF barcodes,” J. Am. Chem. Soc., 131(50), pp 18069–71, 2009
  • An, J.; Shade, C. M.; Chengelis Czegan, D. A., Petoud, S.; Rosi, N. L. “Zinc-adeninate metal-organic framework for aqueous encapsulation and sensitization of near-infrared and visible emitting lanthanide cations,” J. Am. Chem. Soc., 133(5), pp 1220-3, 2011
  • PATENTS: Petoud, S.; Chengelis, D. A.; Yingling, A. M. “Semiconductor nanocrystals as novel antennae for lanthanide cations and associated methods” University of Pittsburgh Patent No. 1040 214001-01240 (1165-1), Publication numbers: US2006208225, WO2006098923, filed 2005. Petoud, S.; Rosi, N. L.; White, K. A.; Chengelis Czegan, D. A. “Lanthanide sensitization using metal-organic frameworks,” filed 2008.

Awards

  • University of Pittsburgh: Graduate Excellence Fellowship, Chair Scholar Award – Kaufman Fellowship, Safford Award for Excellence as a Graduate Student Teacher
  • Seton Hill University: Elizabeth Seton Presidential Scholarship, M.L. Bettwy Chemistry Scholarship, Alpha Lambda Delta National Honor Society, USAA All American Collegiate Scholar, Who’s Who Among Colleges and Universities, Dean’s List (8 consecutive semesters), Honor’s Program

Organizations

  • ACS Student Affiliates (Seton Hill faculty advisor)
  • Society of Analytical Chemists of Pittsburgh
  • Spectroscopy Society of Pittsburgh
  • Womens Chemist Committee - ACS Pittsburgh (Seton Hill campus liaison)
  • American Chemical Society

Presentations

  • Chengelis, D. A.; Whitmore, P. “Conservation science: Linking chemistry and art,” 223rd ACS National Meeting, Orlando, FL, 2002
  • Chengelis, D. A.; “Pursuing a graduate degree in chemistry: academics, research, and student life in graduate school,” Chemistry Seminar Lecture Series, Seton Hill University, Greensburg, PA, 2004
  • Chengelis, D. A.; Cessarich, J.; Petoud, S. “Coordination and photophysical properties of luminescent flavonoid-lanthanide complexes,” 229th ACS National Meeting; San Diego, CA, 2005
  • Chengelis, D. A.; Cessarich, J.; Petoud, S. “Spectrophotometric investigation into the coordination of flavonoids with NIR lanthanide cations,” Engineering Department Symposium; University of Pittsburgh, 2005
  • Chengelis Czegan, D. A.; “Photophysical Study of Luminescent Lanthanide Complexes and Nanoparticles in Solution,” School of Arts & Science Grad Expo, University of Pittsburgh, 2007
  • Chengelis, D. A.; Yingling, A. M.; Badger, P. D.; Shade, C. M.; Petoud, S. “Incorporating lanthanide cations with cadmium selenide nanocrystals: A strategy to sensitize and protect Tb(III)” J. Am. Chem. Soc., 127(48) pp 16752-3, 2005