IOAN MARGINEAN

EDUCATION
2006PhD, George Washington University (Washington DC, USA), mentor: Professor Akos Vertes, thesis: From chaotic cone pulsation to ion evaporation in electrosprays.
19973 month Tempus scholarship at CTI Centre for Chemistry (Liverpool, UK) in Computer Aided Learning. Specific learning application for Analytical Spectrometry
1995-1997Technical University (Cluj-Napoca, Romania), Faculty of Automatic Control and Computer Science (interrupted to take a position at Babes-Bolyai University)
1990-1995Babes-Bolyai University (Cluj-Napoca, Romania), Department of Chemistry, mentor: Prof. Emil A. Cordos, undergraduate research topic: Computer Controlled Atomic Emission Spectrometer
APPOINTMENTS
2006-presentPostdoctoral researcher, Pacific Northwest National Laboratory (Richland, WA), mentor: Prof. Dick Smith
2001-2006Research assistant, George Washington University (Washington, DC), mentor: Prof. Akos Vertes
1997-2000Teaching assistant, Babes-Bolyai University, Department of Chemistry, Analytical Chemistry Division (Cluj-Napoca, Romania)
1995-1998Research assistant, Research Center for Analytical Instrumentation (Cluj-Napoca, Romania)
1993-1995Research student, Research Center for Analytical Instrumentation (Cluj-Napoca, Romania)
AFFILIATIONS
  • American Chemical Society
  • American Society for Mass Spectrometry
AWARDS
PROCEEDINGS
  1. Akos Vertes, Peter Nemes, Ioan Marginean, Samita Goyal, "From spray stability to ion formation: contorted menisci and ion chemistry in electrosprays", 34th Annual FACSS Meeting, Memphis, TN, October 14-18, 2007.
  2. Richard D Smith, Keqi Tang, Mikhail E Belov, Jason S Page, Ryan T Kelly, Brian H Clowers, Yehia M Ibrahim, Erin M Baker, Ioan Marginean, "The Road to Proteomics Perfection: New Developments Improving Throughput, Sensitivity, and Data Quality", HUPO 6th Annual World Congress, Seoul, Korea, October 6-10, 2007.
  3. Richard D. Smith, Keqi Tang, Mikhail E. Belov, Jason S. Page, Ryan T. Kelly, Ioan Marginean, "Advancing the sensitivity, quality, and throughput of mass spectrometry measurements for highly complex biological mixtures", 234th ACS National Meeting, Boston, MA, August 19-23, 2007.
  4. Jason S. Page, Ryan T. Kelly, Ioan Marginean, Keqi Tang, Richard D. Smith, "Increasing the ionization and transmission efficiency in electrospray ionization mass spectrometry using an array of emitters and a multi-inlet interface", 234th ACS National Meeting, Boston, MA, August 19-23, 2007.
  5. Ioan Marginean, Ryan T. Kelly, Jason S. Page; Keqi Tang; Richard D. Smith, "Toward a stable electrospray", 55th ASMS Conference on Mass Spectrometry, Indianapolis, IN, June 3-7, 2007.
  6. Peter Nemes, Ioan Marginean, Samita Goyal, Akos Vertes, "Regime-dependent ion production in electrosprays: the drop, the whip and the jet", 25th Informal Meeting on Mass Spectrometry, Nyíregyháza-Sóstó, Hungary, May 6-10, 2007.
  7. Peter Nemes, Ioan Marginean, Akos Vertes, "Ion chemistry and conformation change with spraying modes in electrosprays", 33rd Annual FACSS Meeting, Lake Buena Vista, FL, September 24-28, 2006.
  8. Peter Nemes, Ioan Marginean, Akos Vertes, "Electrosprays: Chaos and Chemistry in the Electrified Dripping Faucet", Desorption, Athens, Greece, September 3-7, 2006.
  9. Ioan Marginean, Peter Nemes, Akos Vertes, "Chaotic transitions between electrospray regimes", 54th ASMS Conference on Mass Spectrometry, Seattle, WA, May 28 – June 1, 2006.
  10. Peter Nemes, Ioan Marginean, Akos Vertes, "Correlation between spraying modes and ion chemistry in electrosprays", 54th ASMS Conference on Mass Spectrometry, Seattle, WA, May 28 – June 1, 2006.
  11. Akos Vertes, Ioan Marginean, Frederick J. Cox, Murray V. Johnston, "Research collaboration and teaching through cyber-enabled mass spectrometry", 231st ACS National Meeting, Atlanta, GA, March 26-30, 2006.
  12. Ioan Marginean, Peter Nemes, Akos Vertes, "Mode changes in electrosprays: needle geometry and wettability effects", 32nd Annual FACSS Meeting, Quebec City, QB, October 9-13, 2005.
  13. Ioan Marginean, Peter Nemes, Akos Vertes, "Chaos–Order Transitions of Pulsating Taylor Cones in Electrosprays", 230th ACS National Meeting, Washington, DC, August 28 - September 1, 2005.
  14. Akos Vertes, Yong Chen, Guanghong Luo, Ioan Marginean, Louise Ye, "Laser Pulse Length Dependence of Ionization Processes and Internal Energy Transfer in UV-MALDI-MS", The 7th International Conference on Laser Ablation, Hersonissos, Crete, Greece, October 5-10, 2003.
  15. Ioan Marginean, Vasiliy Znamenskiy, Akos Vertes, "Charge reduction in electrospray: charged nanojets as intermediates", 51st ASMS Conference on Mass Spectrometry, Montreal, QB, June 8-12, 2003.
  16. Guanghong Luo, Ioan Marginean, Louise Ye, Akos Vertes, "Laser pulse length dependence of internal energy transfer in MALDI", 51st ASMS Conference on Mass Spectrometry, Montreal, QB, June 8-12, 2003.
  17. Lida Parvin, Linda Heffernan, Ioan Marginean, Akos Vertes, "Direct link between current oscillations and Taylor cone instabilities in electrospray", 51st ASMS Conference on Mass Spectrometry, Montreal, QB, June 8-12, 2003.
  18. Ioan Marginean, Guanghong Luo, Louise Ye, Akos Vertes, "Internal energy of MALDI-generated ions", 225th ACS National Meeting, New Orleans, LA, March 23-27, 2003.
  19. Akos Vertes, Ioan Marginean, Vasiliy Znamenskiy, "Structure, morphology and dynamics of charged nanodroplets", 225th ACS National Meeting, New Orleans, LA, March 23-27, 2003.
  20. Guanghong Luo, Ioan Marginean, Akos Vertes, "Internal energy of ions generated by matrix-assisted laser desorption ionization", 29th Annual FACSS Meeting, Providence, RI, October 13-17, 2002.
  21. Akos Vertes, Vasiliy Znamenskiy, Ioan Marginean, "Large ions in small droplets: structure, morphology and dynamics", Desorption 2002, Estes Park, Colorado, September 1-5, 2002.
  22. Guanghong Luo, Ioan Marginean, Akos Vertes, "Internal energy of molecular thermometer ions generated by MALDI", 50th ASMS Conference on Mass Spectrometry, Orlando, FL, June 2-6, 2002.
  23. Ioan Marginean, Akos Vertes, Frederick J. Cox, Murray V. Johnston, "Remote MALDI-MS experiments from the classroom", 50th ASMS Conference on Mass Spectrometry, Orlando, FL, June 2-6, 2002.
  24. Ioan Marginean, Alpar Fodor, Horia Mioscu, Emil A. Cordos, "Using LabVIEW's multitasking feature for measuring GFAAS signals", CC'97 Conferentia Chemometrica, Budapest, Hungary, August 21-23, 1997.
PUBLICATIONS
  1. Ioan Marginean, Ryan T. Kelly, Jason S. Page, Keqi Tang, Richard D. Smith, Electrospray characteristic curves: In pursuit of improved performance in the nanoflow regime, Anal. Chem., 2007, 79, 8030-8036.
  2. Ioan Marginean, Peter Nemes, Akos Vertes, Astable regime in electrosprays, Phys. Rev. E, 2007, 76, 026320.
  3. Peter Nemes, Ioan Marginean, Akos Vertes, Spraying mode effect on droplet formation and ion chemistry in electrosprays, Anal. Chem., 2007, 79, 3105-3116.
  4. Ioan Marginean, Peter Nemes, Akos Vertes, Order-chaos-order transitions in electrosprays: the electrified dripping faucet, Phys. Rev. Lett., 2006, 97, 064502. Also published by Virt J Nanoscale Sci & Tech, 2006, 14 and Virt J Biol Phys Res, 2006, 15
  5. Ioan Marginean, Peter Nemes, Lida Parvin, Akos Vertes, How much charge is there on a pulsating Taylor cone?, Appl. Phys. Lett., 2006, 89, 064104.
  6. Emil A. Cordos, Tiberiu Frentiu, Michaela Ponta, Ioan Marginean, Bela Abraham, Cecilia Roman, Distribution study of inorganic arsenic (III) and (V) species in soil and their mobility in the area of Baia-Mare, Romania, Chem. Spec. Bioavail. 2006, 18, 11-25.
  7. Emil A. Cordos, Tiberiu Frentiu, Michaela Ponta, Bela Abraham, Ioan Marginean, Optimisation of analytical parameters in inorganic arsenic (III and V) speciation by hydride generation using L-cysteine as prereducing agent in diluted HCl medium, Chem. Spec. Bioavail. 2006, 18, 1-9.
  8. Ioan Marginean, Vasiliy Znamenskiy, Akos Vertes, Charge reduction in electrosprays: slender nanojets as intermediates, J. Phys. Chem. B 2006, 110, 6397-6404.
  9. Akos Vertes, Guanghong Luo, Louise Ye, Yong Chen, Ioan Marginean, Laser pulse length dependence of internal energy transfer in UV-MALDI-MS, Appl. Phys. A 2004, 4-6, 823-825.
  10. Ioan Marginean, Lida Parvin, Linda Heffernan, Akos Vertes, Flexing the electrified meniscus: the birth of a jet in electrosprays, Anal. Chem. 2004, 76, 4202-4207.
  11. Tiberiu Frentiu, Michaela Ponta, Sorin D. Anghel, Alpar Simon, Ioan Marginean, Emil A. Cordos, Statistical evaluation of Cu, Mn and Zn determinations in biological samples by radiofrequency capacitively coupled plasma atomic emission spectrometry using the Bland and Altman test, Microchim. Acta 2003, 143, 245-254.
  12. Vasiliy Znamenskiy, Ioan Marginean, Akos Vertes, Solvated ion evaporation from charged water nanodroplets, J. Phys. Chem. A 2003, 107, 7406-7412.
  13. Guanghong Luo, Ioan Marginean, Akos Vertes, Internal energy of ions generated by matrix-assisted laser desorption ionization, Anal. Chem. 2002, 74, 6185-6190.