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Tetyana Ignatova

Tetyana Ignatova

Tetyana Ignatova, Ph.D.

About Professor Ignatova

Dr. Ignatova’s personal research interests and professional training are highly cross-disciplinary, enabling wide perspective on nano-science in general. While the solid physics backgrounds and extensive research experience in nanotechnology and bioengineering allow her to excel at the cutting edge of applied physics and materials science of low-dimensional nanostructures.

In her group, they work on a number of projects on experimental nanoscience of low-dimensional materials, focusing on physics of biosensing, spectroscopic intra-cellular imaging, and nanofabrication for energy storage. This research is aimed on advancing applications based on 2D layered materials and hybrid DNA-nanotube structures, pushing the limits of nanocharacterization and nanofabrication, and exploring nanomaterials for transdisciplinary applications.

In general it is NANO-OPTO-BIO

  1. Physics of low-dimensional materials
  2. Optical sensing of DNA conformation; Mechanosensing in neural stem cells
  3. Nanocharacterization: Single nanotube imaging in live cells; Raman microscopy of 2D-materials, Microwave imaging of nanomaterials.
  4. Near-field optics: FRET in Rare Earths (RE) – Nano complexes.

Book chapter

T. Ignatova, A.M. Nemilentsau, and S. V. Rotkin, “Near-field optics of SWNTs and FRET in their nanoscale complexes”, in Handbook on Carbon Nano Materials, ed. F DiSouza, K Kadish. World Scientific Publishing, Inc., Chapter 8, pp. 287-319 (2012). ISBN-10: 981- 4401-41-2; ISBN-13: 978-981-4401-41-8

Publications in peer-reviewed journals

M. Pirbhai, T. Ignatova, S. V. Rotkin, , S. S. Jedlicka. Developing a Framework for the Neural Stem Cell Differentiation in the Presence of Carbon Nanotubes, J. of Biomedical Materials Research A: under submission.

(Cover Image) T. Ignatova, S. Chandrasekar, M. Pirbhai, S. Jedlicka, S. V. Rotkin. Micro-Raman spectroscopy as an enabling tool for long-term intracellular studies of nanomaterials at nanomolar concentration levels. J. Mater. Chem. B, Advance Article, DOI: 10.1039/C7TB00766C, 2017.

T. Ignatova, A. Balaeff, M. Blades, M. Zheng, P. Stoeck, S. V. Rotkin.Two-color spectroscopy of UVexcited ssDNA complex with a single-wall nanotube probe: Fast relaxation by nucleobase autoionization mechanism. Nano Research 9(2), 571-583, DOI: 10.1007/s12274-015-0938-0, 2016.

T. Ignatova, I. Biaggio, J. G. Duque, S. K. Doorn, S. V. Rotkin. Formation and dynamics of “waterproof” photoluminescent complexes of rare earth ions in crowded environment. Phys. Chem. Chem. Phys. 16, 26715-21, DOI: 10.1039/C4CP04342A, 2014.

(Cover Image) T. Ignatova, S. V. Rotkin. Discovering properties of nanocarbon materials as a pivot for device applications. Interface, the Electrochemical Society, v. 22(3), 57-60, 2013.

T. Ignatova, H. Najafov, A. Ryasnyanskiy, I. Biaggio, M. Zheng, S.V. Rotkin, Significant FRET between SWNT/DNA and rare earth ions: a signature of their spatial correlations. ACS Nano 5(7), 6052-59, DOI: 10.1021/nn201911b, 2011.

A. E. Baranovskiy, G. E. Grechnev, V. D. Fil, T. V. Ignatova et al. Electronic structure and bulk properties of MB6 and MB12 borides. Low Temp. Phys., 34, 921, 2008.

V. D.Fil, T.V. Ignatova et al., Mass of an Abrikosov vortex. Low Temp. Phys., 33, 1019-1022, 2007.

G. E. Grechnev, A. E. Baranovskiy, V. D. Fil, T. V. Ignatova et al. Electronic structure bulk and magnetic properties of MB6 and MB12 borides. Journal Alloys and Compounds, 442 (1), 228-230, 2007.

G.E. Grechnev, A.E. Baranovskiy, A.V. Logosha, A.S. Panfilov, V. D. Fil, T.V. Ignatova, N.Yu. Shitsevalova, O. Eriksson. Pressure effect on electronic structure and magnetic properties of MB6 and MB12 borides. High Pressure Physics and Technology, 16(4), 110, 2006.

E.A.Masalitin, V.D.Fil`, K.R.Zekov, A.N.Zholobenko, T.V.Ignatova et al. Elastic constants of borocarbides. New approach to acoustic measurement technique. Low Temp. Phys, 29, (1), 72-76, 2003.

I.A. Gospodarev, P. Molinie, E. Faulques, T.V. Ignatova et al. Elastic properties and phonon spectra of quasi-two-dimensional VSe2. Low Temp. Phys., 29(2), 151-154, 2003.

T.V.Ignatova, et al. MgB2: synthesis, sound velocity and vortex phase dynamics, Low Temp. Phys., 28, 270-274, 2002.

F.Ragot, S.Belin, V.G.Ivanov, D.L.Perry, M.Ortega, T.V.Ignatova et al. Electronic and dynamic properties of imidazolate complexes. Material Science, 20(3), 2002.

T.V. Ignatova, A.L.Gaiduk, I.G. Kolobov et al. Anisotropy of spin reorientation fields in Nd2CuO4 , Low Temp. Phys., 22, 1031-1033, 1996.

A.L. Gaiduk, I.G. Kolobov, T.V. Ignatova et al. Magnetoelastic effects in Nd2CuO4 , Czechoslovak Journ. of Phys., 46, 2153-54, 1996.

Proceedings

M. B. B. Abad, T. Ignatova, M.W. Turvey, P.G. Collins. In Situ Scanning Probe Microscopy of Li-Ion Battery Cathode Materials. In Proceedings of the 232nd Meeting of the Electrochemical Society, issue 3, p. 245, 2018.

T. Ignatova, S. Jedlicka, S. V. Rotkin. Long Term Intracellular Study of Carbon Nanomaterials at Ultra-Low Concentrations. In Proceedings of the 232nd Meeting of the Electrochemical Society, National Harbor, Maryland, issue 8, p. 657, 2017.

M. Blades, T. Ignatova, H. Q Ta, Alicja Bachmatiuk, M. H. Rummeli, Y. H. Lee, S. V Rotkin. Classification of Graphene Islands Via Confocal Raman Spectra Cluster Analysis. In Proceedings of the 231st Meeting of the Electrochemical Society, New Orleans, Louisiana, issue 12, p. 817, 2017.

T. Ignatova, M. Blades, J. G. Duque, S. K. Doorn, S.V. Rotkin. Propagation of terbium ions through the SWNT gel. In Proceedings of the 223rd Meeting of the Electrochemical Society, Toronto, Canada, May 12-17, 2013.

T. Ignatova, H. Najafov and S. V. Rotkin. Experimental study of the resonance energy transfer rate between Rare Earth ions and Carbon Nanotubes. In Proceedings of the 217th ECS Meeting, Vancouver, Canada, April 25-30, 2010.

I.V. Svechkarev, G.E. Grechnev, A.E. Baranovskiy, A. V. Logosha, A.S. Panfilov, V.D. Fil, T. V.Ignatova, I.G. Kolobov, V.B. Filippov, N. Yu. Shitsevalova. Electronic Structure, Magnetic and Elastic Properties of Higher Borides. In Proceedings of the International Conference ‘Physics of the condensed matter state at low temperatures’, p. 164-166, 2006.

Conference talks and presentations

M. B. B. Abad, T. Ignatova, M.W. Turvey, P.G. Collins. In Situ Scanning Probe Microscopy of MnO2 Cathodes for Li-Ion Batteries. APS March Meeting, March 5-9, Los-Angeles, California, 2018.

(Invited talk) T. Ignatova, S. Jedlicka, S. V. Rotkin. Long Term Intracellular Study of Carbon Nanomaterials at Ultra-Low Concentrations. The 232nd ECS Meeting, October 1st – 5th, National Harbor, Maryland, 2017.

T. Ignatova , M. Pirbhai , S. Chandrasekar , S. V. Rotkin , S. Jedlicka. First step in developing SWNT nano-sensor for C17.2 neural stem cells. APS March Meeting, March 13-17, New-Orleans, Louisiana, 2017.

M. Blades, T. Ignatova, H. Wang, R. Vishnubhotla, Ch. Johnson, X. G. Xu, S. V. Rotkin. Near-field microscopy of transferred graphene-graphene heterostructures: Interplay between materials properties and preparation procedure. APS March Meeting, March 13-17, New-Orleans, Louisiana, 2017.

J. Allen, J. Bunton, M. White, C. Thomas, M. Vlcek, T. Ignatova, A. Kovalskiy. Kinetics of Photo-Response of Arsenic Sulphide Thin Films. The 83rd Annual Meeting APS Southeastern Section, November 10-12, Charlottesville, Virginia, 2016.

T. Ignatova, A. J. Rajapakse, P. G. Collins. Coupling of Electrochemical Charging with Mechanical Expansion and Degradation in Nanostructured MnO2 Cathodes. The 229th ECS Meeting, May 29 –June 2, San Diego, California, 2016.

S.V Rotkin, T.Ignatova, A. Balaeff. Two-color spectroscopy of UV excited ssDNA complex with a singlewall nanotube (SWNT) probe: Fast nucleobase autoionization mechanism. APS March Meeting, March 14–18, Baltimore, Maryland, 2016.

T. Ignatova, B. Corso, D. Pan, O. T. Gul, P. G. Collins, In-situ correlation of volummetric expansion with charge storage in nanostructured MnO2. APS March Meeting, March 2 – 6, San Antonio, Texas, 2015.

M. Blades, T. Ignatova, J. G. Duque, S. K. Doorn, S. V. Rotkin. Evolution of “waterproof”
photoluminescent complexes of rare earth ions in crowded environment. APS March Meeting, March 2–6, San Antonio, Texas, 2015.

T. Ignatova, J. G. Duque, S. K. Doorn, S. V. Rotkin, Unexpected water screening in gel-encapsulated terbium systems. APS March Meeting, March 18–22, 2011; Baltimore, Maryland, 2013.

T. Ignatova, and S. V. Rotkin, A Signature of Spatial Correlations between rare earth ions and singlewall nanotubes wrapped with DNA in their mixed solution. APS March Meeting, Feb 27 – March 2, Boston, Massachusetts, 2012.

T. Ignatova, D. Pristinski and S. V. Rotkin, Studying of kinetics of rear earth ion (REI) nanoscale complex formation by resonant energy transfer. APS March Meeting, March 21–25, 2011; Dallas, Texas, 2011.

M. Blades, M. Pirbhai, T. Ignatova, and S. V. Rotkin, Construction of an Epifluorescent Microscope for Use in Imaging Carbon Nanotubes. 10th Annual Open House of the Center for Optical Technologies, November 21, 2011, Lehigh University.

T. Ignatova, D. Pristinski, S. V Rotkin, Photoexcitation of SWNT through the DNA-Rare Earth Bridge, Gotham Metro Condensed Matter Meeting, April 15, The New York Academy of Sciences, 2011.

T. Ignatova, H. Najafov and S. V. Rotkin. Experimental study of the resonance energy transfer rate between Rare Earth ions and Carbon Nanotubes. the 217th ECS Meeting, April 25-30,Vancouver, Canada, 2010.

T. Ignatova, H. Najafov and S. V. Rotkin. Confirmation of the resonance energy transfer between Rare Earth-DNA-Carbon Nanotube complex. APS March Meeting, March 15–19, Portland, OR, 2010.

T. Ignatova, H. Najafov, A.Ryasnyanskiy, I. Biaggio and S. V. Rotkin. Chirality dependence of Resonance Energy Transfer between Single Wall Nanotubes (SWNT) and Rear Earth Ions (REI). 9 Annual Open House of the Center for Optical Technologies, October 11-12, Lehigh University, 2010.

T. Ignatova, H. Najafov and S. V. Rotkin. Experimental Study of the Resonance Energy Transfer Rate Between Rare Earth Ions and CNT. Nano-Energy Workshop, Lehigh University; Sep 13-14, 2010.

T. Ignatova, H. Najafov and S. V. Rotkin. Energy transfer between Rear Earth ions and Carbon Nanotubes. APS March Meeting, March 16–20, Pittsburgh, PA, 2009.

Ga. Wadsworth, T. Ignatova and S. V. Rotkin, Deposition of Carbon Nanotube Networks for Electronics Applications. 2009 APS March Meeting, March 16–20, Pittsburgh, PA, 2009.

T. Ignatova, O. Kazachkov, S. V. Rotkin. Amazing Optics Experiments to increase class involvement of sophomore physics majors. . AAPT Winter Meeting, January 19-22, Baltimore, MD, 2008.

T. Ignatova, et al. MB6: sound velocity and vortex phase dynamics. Physical Phenomena in Solids, Kharkiv, Ukraine, 2005.

F.Ragot, S.Belin, V.G.Ivanov, D.L.Perry, M.Ortega, T.Ignatova et al. 4-th Int. Conf. on Electronic Proc. in Organic Materials, Lviv, Ukraine, 2002.