Research Associate

Refereed Journal Articles

  1. Pirela, S.; Pyrgiotakis, G.; Dhimiter, B.; Treye, T.; Castranova, V.; Demokritou, P. Development and Characterization of an Exposure Platform Suitable for Physico-Chemical, Morphological and Toxicological Characterization of Printer Emitted Particles (PEPs). – Inhalation Toxicology, 2014 – Accepted [pdf]
  2. Pyrgiotakis, G.; McDevitt J. Gao Y.; Branco A; Eleftheriadou M; Lemos B.; Nardell E.; Demokritou P. Mycobacteria inactivation using Engineered Water Nanostructures (EWNS). – Nanomedicine -NBM, 2014 – Accepted [pdf]
  3. Watson, C.; Ge, J.; Cohen, J.; Pyrgiotakis, G.; Engelward, B. P.; Demokritou, P. A High Throughput Screening Platform for Engineered Nanoparticle Mediated Genotoxicity Using CometChip Technology ACS Nano20148 (3), pp 2118–2133 [pdf]
  4. DeLoid, G.; Cohen, J. M.; Darrah, T.; Pyrgiotakis, G.; Wohlleben, W.; Demokritou, P. Nanomaterial Effective Density for In Vitro Dosimetry by Volumetric Centrifugation., Nature Communications, 2013 – [pdf]
  5. G. A. Sotiriou, C. Watson, K. M. Murdaugh, T. H. Darrah, G. Pyrgiotakis, A. Elder, J. D. Brain and P. Demokritou. “Engineering Safer-by-Design, Transparent, Silica-coated ZnO Nanorods with Reduced DNA Damage Potential”. Environmental Science: Nano in press, DOI: 10.1039/C3EN00062A (2014). [pdf]
  6. Pyrgiotakis, G; McDevitt, J; Bordini, A; Diaz, E; Molina, R; Watson C; Lenard S; Fix N; Mizuyama Y; Brain J; Demokritou P. A chemical free, nanotechnology-based method for airborne bacterial inactivation using engineered water nanostructures
     RSC Environmental Science: Nano, 2014, 1, 15-29 [pdf]
  7. Pyrgiotakis, G; Blattmann, C.O.; Pratsinis, S.E.; Demokritou, P. Nanoparticle-nanoparticle interactions in biological media by Atomic Force Microscopy, Langmuir, 2013, 29, 11385-11395 [pdf]
  8. Demokritou, P.; Gass, S.; Pyrgiotakis, G.; Cohen, J. M.; Goldsmith, W.; McKinney, W.; Frazer, D.; Ma, J.; Schwegler-Berry, D.; Brain, J.; et al. An in Vivo and in Vitro Toxicological Characterisation of Realistic Nanoscale CeO2 Inhalation Exposures. Nanotoxicology, 2013, 7, 1338-1350. [pdf]
  9. Safer Formulation Concept for Flame-Generated Engineered Nanomaterials. S. Gass, J. M. Cohen, G Pyrgiotakis, G. A. Sotiriou, R. Derk, L. Rojanasakul, S. E. Pratsinis, P. Demokritou, ACS Environmental Science and Technology. – doi:10.1021/sc300152f [pdf]
  10. An in vivo and in vitro toxicological characterization of realistic nanoscale CeO2 inhalation exposures. P. Demokritou , S. Gass, G. Pyrgiotakis, J. M. Cohen, W. Goldsmith, W. McKinney, D. Frazer, J. Y Ma, D. Schwegler-Berry, J.D. Brain, V. Castranova, Nanotoxicology – doi:10.3109/17435390.2012.666576 [pdf]
  11. A novel method for bacterial inactivation using electrosprayed water nanostructures. G. Pyrgiotakis, J. McDevitt, T. Yamauchi and P. Demokritou, Journal of Nanoparticle Research (2012) 14:1027 -doi: 10.1007/s11051-012-1027-x [pdf]
  12. Interactions of Engineered Nanomaterials in Physiological Media and Implications for In Vitro Dosimetry. Cohen, G. Deloid, G. Pyrgiotakis and P. Demokritou, Nanotoxicology – (2012) – doi: 10.3109/17435390.2012.666576 [pdf]
  13. Raman Spectroscopy for Clinical Oncology. M. B. Fenn, P. Xanthopoulos, G. Pyrgiotakis, S. R. Grobmyer, P. M. Pardalos, and L. L. Hench, Advances in Optical Technologies (2012) doi:10.1155/2011/213783 [pdf]
  14. Modified Na-Bentonite as a Thickening Agent for Water-Borne Paints. F. Karakaş, G. Pyrgiotakis, M.S. Çelik, Brij M. Moudgil, KONA Powder Technology,KONA Powder and Particle Journal, 29, p. 96, 2011 [pdf]
  15. Classification of cancer cell death with spectral dimensionality reduction and generalized eigenvalues. P. Xanthopoulos, G. Pyrgiotakis, M. Guarracino, V. Tomaino, B. Moudgil and P. Pardalos, Artificial Intelligence in Medicine, 53, p119–125, 2011 [pdf]
  16. Raman Spectroscopy and Support Vector Machines for Quick Toxicological Evaluation of Titania nanoparticles, G. Pyrgiotakis, E. Kundakcioglu, P. Pardalos, and B. M. Moudgil, Journal of Raman Spectroscopy – ( DOI 10.1002/jrs.2839 [pdf]
  17. Near-Infrared Absorbing and Luminescent Gold Speckled Silica Nanoparticles for Photothermal Therapy. P. Sharma, S.C. Brown, A. Singh, I. Nobutaka, G. Pyrgiotakis, Vijay Krishna, J. A. Knapik, K. Barr,  S. R. Grobmyer, and B. M. Moudgil, Journal of Materials Chemistry, 20, p. 5182-5185, 2010 [pdf]
  18. X-Ray Photoelectron Spectroscopy of Anatase-TiO2 Coated Carbon Nanotubes, G. Pyrgiotakis and S. Wolfgang, Solid State Phenomena , 162, p 163-177, 2010 [pdf]
  19. Photocatalytic Carbon Nanotube-TiO2 Composites, K. Woan, G. Pyrgiotakis, and W. Sigmund, Advanced Materials, 21, 2233, 2009 [pdf]
  20. Cell death discrimination with Raman spectroscopy and Support Vector Machine, G. Pyrgiotakis, E. Kundakcioglu, K. Finton, K. Powers, P.s Pardalos, B. Moudgil, Annals of Biomedical Engineering, 37 (7), 1464, 2009 [pdf]
  21. A Study of Cell (A549) Particle (Jasada Bhasma) Interactions Using Raman Spectroscopy. G. Pyrgiotakis, T. K. Bhowmick, K. Finton, A.K. Suresh, S.G. Kane, J. R. Bellare and B. Moudgil, Biopolymers, 89 (6), p 555-564, 2008 [pdf]
  22. A Study of the Effect of Jasada Bhasma Particles on Saccharomyces Cerevisiae (yeast) cells by Raman Spectroscopy. G. Pyrgiotakis, T. K. Bhowmick, K. Finton, A.K. Suresh, S.G. Kane, B. Moudgil and J. R. Bellare, Journal of Raman Spectroscopy, 39 (12), 1859, 2008 [pdf]
  23. Processing and Structure Relationships in Electrospinning of Ceramic Fiber Systems. W. Sigmund, J. Yuh, Hyun Park, V. Maneeratana, G. Pyrgiotakis, A. Daga, J. Taylor, and J. C. Nino, Journal of American Ceramics Society 89 (2), p. 395-407 2006 [pdf]
  24. The Effect of Monolayers’ Alkyl Chain Length on Atomic Force Microscopy Anodization Lithography, B.-S. Kim, G. Pyrgiotakis, J. Sauers and W. Sigmund, Colloids and Surfaces A: Physicochem. Eng. Aspects 253,p. 2326, 2005 [pdf]
  25. TiO2-Carbon Nanotube Nanocomposite Particles. S.-H. Lee, G. Pyrgiotakis and W. Sigmund, Annals of the European Academy of Sciences2004 [pdf]
  26. Dip-Pen Nanolithography with Poly(diallyldimethylammonium chloride). B.-S. Kim, G. Pyrgiotakis, W. Sigmund. Journal of Nanotechnology and Nanoscience,4 (3), p. 221-225, 2004 [pdf]
  27. Ceramic slurries for electrodeposition in rapid-prototyping applications. N.J. Manjooran, S.-W. Lee, G. Pyrgiotakis, W. Sigmund, American Ceramic Society Bulletin, 83 (12), p. 9301-9303, 2004 [pdf]
  28. Pyrgiotakis G.; Blattmann C.; Demokritou P.; Real-time Nanoparticle-Cell interactions in   physiological media by Atomic Force Microscopy. Submitted to ACS Sustainable Engineering & Chemistry 2014.
  29. Okello, V.; Gass, S.; Pyrgiotakis, G.; Nian, D.; Mudaugh, K.; Boling, D.; Demokritou, P. Capture, Isolation and Detection of Industrially-relevant Engineered Aerosol Nanoparticles, Submitted toLangmuir2014.

Book Chapters:

  1. Photocatalytic Particles for Biocidal Applications, G. Pyrgiotakis and W. Sigmund Particulate Systems in nano- and bio- technologies. Editors: Wolfgang Sigmund, H. El-Shall, D.O. Shah and B. Moudgil. RCR Press, 2008 ISBN: 9780849374364
  2. Theory and Applications of Colloidal Processing, W. Sigmund, G. Pyrgiotakis and A. Daga. Chemical Processing of Ceramics, 2nd Edition, Editors: Burtrand I. Lee and Sridhar Komarneni, , CRC Press, 2005 ISBN: 1574446487
  3. Dispersion of Nanoparticles J. Cho, G. Pyrgiotakis and W. Sigmund, Dekker Encyclopaedia of Nanoscience and Nanotechnology and Nanoscience, Ed. H. Nalwa, DOI: 10.1081/E-ENN 12003552, by Marcel Dekker Inc. 2004


  1. W. Sigmund, S.-H. Lee, B. Koopman, B. Moudgil, G. Pyrgiotakis, V. Krishna Photocatalytic nanocomposites and applications thereof – Provisional Patent, United States Patent, Patent No. US 7541509 B2, June 2, 2009. [pdf]

Peered Reviewed Proceedings:

  1. A safer formulation concept for flame-generated engineered nanomaterials, S. Gass, G. Pyrgiotakis, J.M. Cohen, G.A. Sotiriou, S.E. Pratsinis, P. Demokritou, Nanotech 2012 Conference Proceedings Vol. 3, ISBN: 978-1-4665-6274-5, Pages: 323 – 326, 2012
  2. A novel method for bacteria inactivation using Engineered Water Nanostructures. G. Pyrgiotakis, J. McDevitt, T. Yamauchi, P. Demokritou, Nanotech 2012 Conference Proceedings Vol. 1, ISBN: 978-1-4665-6276-9, Pages: 421 – 424, 2012
  3. Titania-Carbon Nanotube Composite for Enhanced Photocatalysts, G. Pyrgiotakis and W. Sigmund, 2nd International Conference & Exposition on Advanced Ceramics & Composites, Daytona Beach, 2008,
  4. Photocatalytic Destruction of Bioparticles W. Sigmund, G. Pyrgiotakis, V. Krishna, S.-H. Lee, S. Pumprueg, B. Koopman, B. Moudgil IEEE International Conference, Proceedings TEHOSS 2005, Ed. A. Stepnowski, Co-Eds. A Rucinski, K. Kosmowski, ISBN 83-917681-9-8, p. 479-486, 2005
  5. Advanced Photocatalysis with Anatase Nanocoated Multi-walled Carbon Nanotubes, G. Pyrgiotakis, S.-H. Lee and W. Sigmund. Proceedings of MRS Spring Meeting 2005: Symposium R Nanoporous and Nanostructured Materials for Catalysis, Sensor, and Gas Separation Applications, Editors: S.W. Lu, H. Hahn, J. Weissmuller, J.L. Gole, San Francisco, p. R5.7, 2005
  6. Rheology of Ceramic Slurries for Electro-Deposition in Rapid Prototyping Applications., N. J. Manjooran, S.-W. Lee, G Pyrgiotakis, W Sigmund, Proceedings of ACerS Meeting 2004: Colloidal Ceramic Processing of Nano-, Micro-, and Macro-Particulate Systems, Editors: W.-H. Shih, Y. Hirata, W. Carty, p. 75-81, 2004 

 Citations in Each Year

  • draw-1Sum of the Times Cited: 615
  • Sum of Times Cited without self-citations:595
  • Citing Articles: 600
  • Citing Articles without self-citations : 590
  • Average Citations per Item: 23.65
  • h-index: 7 (Google Scholar h-index: 10) Google Scholar report