A. Books/Monographic papers

  1. I. Ardelean, R. Kimmich, “Beyond the Limits of Conventional Pulsed Gradient Spin Echo (PGSE) Diffusometry: Generalization of the Magnetization-grating Principle”, in “Diffusion NMR of Confined Systems : Fluid Transport in Porous Solids and Heterogeneous Materials”; Edited by Royal Society of Chemistry 2016; pag. 260-293; DOI:10.1039/9781782623779
  2. I. Ardelean, Rezonanta Magnetica Nucleara pentru ingineri, Editura U.T. Press, Cluj-Napoca, 2013, ISBN: 978-973-662-905-1 (it can be provided for free, on request)
  3. I. Ardelean, “Introductory quantum mechanics” (in Romanian), Editura U.T.Press, Cluj-Napoca, 2002, ISBN 973-8335-24-8(199 p)
  4. I. Ardelean, “Physics for engineers” (in Romanian), Editura U.T.Press, Cluj-Napoca, 2005 (222 p)
  5. I. Ardelean and R. Kimmich “Principles and unconventional aspects of NMR diffusometry”, in “Annual Reports on NMR Spectroscopy”, vol. 49, pag. 43 (Ed. G.A.Webb), Academic Press, 2003
  6. I. Ardelean, “Applications of Field-cycling NMR Relaxometry to Cement Materials”, in “Field-Cycling NMR Relaxometry: Instrumentation, Model Theories and Applications”, Edited by Royal Society of Chemistry 2018; pag. 462 – 489; http://dx.doi.org/10.1039/9781788012966

B. Papers in ISI indexed journals

  1. D.E.Demco, and I. Ardelean, Spatial Localised Single Quantum Heteronuclear Polarisation Transfer, Acta Physica Polonica A86, (3), 407-425(1994).
  2. D. E. Demco, S. Hafner and I. Ardelean, R. Kimmich, Localised heteronuclear cross-polarisation in solids by double quantum transitions, Appl. Magn. Reson. 9, 491- 507(1995).
  3. D.E.Demco, and I. Ardelean, Spatially Localised Double Quantum Heteronuclear Coherence Transfer in Solids-Indirect Detection Procedure, Acta Physica Polonica A89, 699- 714(1996).
  4. I. Ardelean, S.Stapf, D.E.Demco and R. Kimmich, The nonlinear stimulated echo, J. Magn. Reson.124, 506-508 (1997).
  5. I. Ardelean, R.Kimmich, S.Stapf and D.E.Demco, Multiple nonlinear stimulated echoes, J. Magn. Reson. 127, 217-224 (1997).
  6. I. Ardelean, R.Kimmich, S.Stapf and D.E.Demco, The nonlinear stimulated echo in the presence of inequivalent spins, J. Magn. Reson.132, 138-143 (1998).
  7. R. Kimmich and I. Ardelean, Intermolecular multiple-quantum coherence transfer echoes and multiple echoes in nuclear magnetic resonance, J. Chem. Phys. 110, 3708-3713 (1999).
  8. R. Kimmich, I. Ardelean, Y.Ya Lin, S. Ahn and W.S. Warren, Multiple spin echo generation by gradients of the radio frequency amplitude: Two-dimensional nutation spectroscopy and multiple rotary echoes, J. Chem. Phys. 111, 6501-6509 (1999).
  9. I. Ardelean, A. Scharfenecker and R. Kimmich, Two-pulse nutation echoes generated by gradients of the radio frequency amplitude and of the main magnetic field, J. Magn. Reson. 144, 45-52 (2000).
  10. I. Ardelean, R. Kimmich and A.Klemm, The nutation spin echo and its use for localized NMR, J. Magn. Reson, 146, 43-48 (2000).
  11. I. Ardelean and R. Kimmich, Diffusion measurements using the nonlinear stimulated echo, J. Magn. Reson. 143, 101-105 (2000).
  12. I.Ardelean and R. Kimmich, Diffusion measurements with the pulsed gradient nonlinear spin echo method”, J. Chem. Phys. 112, 5275-5280(2000).
  13. I. Ardelean and R. Kimmich, The demagnetizing field effects on Hahn echo, Chem. Phys. Letters 320, 81-86 (2000).
  14. A. Scharfenecker , I. Ardelean and R, Kimmich, Diffusion measurements with the aid of nutation spin echoes appearing after two inhomogeneous radio-frequency pulses in inhomogeneous magnetic fields, J. Magn. Reson.148, 363-366 (2001).
  15. I. Ardelean, E. Kossel and R. Kimmich, Attenuation of homo- and heteronuclear multiple spin echoes by diffusion, J.Chem.Phys.114, 8520-8530 (2001).
  16. E. Kossel, R. Kimmich and I. Ardelean,, The Influence of J-coupling on heteronuclear nonlinear (or multiple) spin echoes , Chem. Phys. Letters 347, 157-162 (2001).
  17. I. Ardelean, C. Mattea, G. Fahhrer, S.Woronajano, and R. Kimmich, NMR studies of vapor phase contribution to diffusion in nanoporous glasses partially filled with water and cyclohexane, J.Chem. Phys. 119, 10358-10362 (2003).
  18. I. Ardelean, R. Kimmich, The diversity of B-0 and B-1 gradient NMR diffusometry techniques, Israel Journal of Chemistry 43, 9-24 (2003).
  19. I. Ardelean, B.Buhai, and R. Kimmich, The Grating Echo, Appl. Magn.Reson. 26, 307-315 (2004).
  20. I. Ardelean, G.Farrher, C.Mattea and R.Kimmich, Nuclear magnetic resonance study of the vapour phase contribution to diffusion in silica glasses with micrometer pores partially filled with liquid cyclohexane and water, J. Chem. Phys.120, 9809-9816 (2004).
  21. C.Mattea, R.Kimmich, I.Ardelean, S.Wonorahardjo, and G.Farrher, „Molecular exchange dynamics in partially filled microscale and nanoscale pores of silica glasses studied by FC NMR relaxometry” J.Chem Phys. 121, 10648-10656 (2004).
  22. B.Bogdan, A.Hakimov, I.Ardelean, and R.Kimmich, “NMR acceleration mapping in percolation model objects”, J. Magn. Reson. 168, 175-185 (2004).
  23. I. Ardelean, G. Farrher, C. Mattea, and R. Kimmich, NMR study of the vapor phase contribution to diffusion in partially filled silica glasses with nanometer and micrometer pores, Magn. Reson. Imag. 23, 285-289 (2005).
  24. G. Farrher, I. Ardelean, R. Kimmich, Probing four orders of magnitude of diffusion times in porous silica glasses with unconventional NMR techniques”, J. Magn. Reson. 188, 215-220 (2006).
  25. G. Farrher, I. Ardelean and R. Kimmich, The heterogeneous distribution of the liquid phase in partially filled porous glasses and its effect on self-diffusion, Magn. Reson. Imag. 25, 453-456 (2007).
  26. I. Ardelean, G. Farrher and R. Kimmich, Effective diffusion in partially filled nanoscopic and microscopic pores, Journal of Optoelectronics and Advanced Materials, 9, 655-660 (2007).
  27. M. Bogdan, A. Nan, L. Barbu-Tudoran ,C.V.I. Pop, I. Ardelean, NMR investigation of polyethyl-2-cyanoacrylate (PECA), nanocapsules, Applied Magn. Reson. 34, 111-119 (2008).
  28. M. Bogdan, A. Parnau, C. Badea, and I. Ardelean, Molecular dynamics in permeable nanocapsules, Appl. Magn. Reson. 34, 63 – 69 (2008).
  29. G. Farrher, I. Ardelean and R. Kimmich, Time-Dependent Molecular Diffusion in Partially Filled Porous Glasses with Heterogeneous Structure, Appl. Magn. Reson. 34, 85-99 (2008).
  30. G. Farrher, I. Ardelean, R. Kimmich, Time dependent diffusion in partially filled porous glasses, Journal of Optoelectronics and Advanced Materials, 10, 2192-2198 (2008).
  31. C. Badea, R.B. Mos, L. Ciontea, I. Ardelean, Low-Field Nuclear Magnetic Resonance Relaxometry as a Tool in Monitoring the Aging of Coating Solutions (Case Study: Barium Propionate Precursor Coating Solution), Appl. Magn. Reson. 39, 365-372 (2010).
  32. R. Nechifor, M. Bogdan and I. Ardelean, The Size Distribution of Core Shell Polymeric Capsules as Revealed by Low-Field NMR Diffusometry, Appl. Magn. Reson.40, 205-211 (2011).
  33. M. Simina, R. Nechifor and I. Ardelean, Saturation-dependent nuclear magnetic resonance relaxation of fluids confined inside porous media with micrometer-sized pores, Magn. Reson. Chem. 49, 314-319 (2011).
  34. R. Nechifor, C. Mattea, S. Stapf, M. Bogdan, I. Ardelean, “NMR relaxation dispersion of miglyol molecules confined inside polymeric micro-capsules”, Magn. Reson. Chem. 49, 730-739 (2011).
  35. M. Simina, L. Molnar, D. Manea and I. Ardelean, Monitoring the Air Influence on Cement–Lime Mortar Hydration Using Low-Field Nuclear Magnetic Resonance Relaxometry, Appl. Magn. Reson. 43, 443-450 (2012).
  36. S. Muncaci and I. Ardelean, The Influence of the Magnetic Impurity Content on the Pore Size Distribution Determination via the DDIF Technique, Appl. Magn. Reson. 44, 365-373(2013).
  37. S. Muncaci, C. Mattea, S. Stapf, I. Ardelean, Frequency‐dependent NMR relaxation of liquids confined inside porous media containing an increased amount of magnetic impurities, Magn. Reson. Chem. 51, 123-128(2013).
  38. S. Muncaci and I. Ardelean, Probing the Pore Size of Porous Ceramics with Controlled Amount of Magnetic Impurities via Diffusion Effects on the CPMG Technique, Appl. Magn. Reson. 44, 837-848 (2013).
  39. A. Pop, C. Badea and I. Ardelean, The Effects of Different Superplasticizers and Water-to-Cement Ratios on the Hydration of Gray Cement Using T2-NMR,
    Appl. Magn. Reson. 44, 1223-1234 (2013).
  40. C. Badea, A. Pop, C. Mattea, S. Stapf, I. Ardelean, The effect of curing temperature on early hydration of gray cement via Fast Field Cycling-NMR relaxometry, Appl. Magn. Reson. 45, 1299–1309 (2014). doi:10.1007/s00723-014-0565-z.
  41. S. Boboia, M. Moldovan, C. Prejmerean, C. Sarosi, A. Roman, I. Ardelean, Influence of Initiation System and Filler Ratio on the Properties of New Flowable Dental Composites, Materiale Plastice 52, 104-108 (2015).
  42. A. Pop and I. Ardelean, Monitoring the size evolution of capillary pores in cement paste during the early hydration via diffusion in internal gradients, Cem. Conc. Res. 77, 76-81 (2015) (can be downloaded here)
  43. A. Pop, A. Bede, M.C. Dudescu, F. Popa, I. Ardelean, Monitoring the Influence of Aminosilane on Cement Hydration Via Low-field NMR Relaxometry, Appl. Magn. Reson. 47, 191–199 (2015), doi: 10.1007/s00723-015-0743-7 (can be downloaded here).
  44. A. Bede, A. Scurtu, I. Ardelean, NMR relaxation of molecules confined inside the cement paste pores under partially saturated conditions, Cem. Conc. Res. 89, 56-62 (2016), doi: 10.1016/j.cemconres.2016.07.012 (can be downloaded here).
  45. J. Stepišnik, I. Ardelean, Usage of internal magnetic fields to study the early hydration process of cement paste by MGSE method, J. Magn. Reson. 272, 100-107, (2016). doi: 10.1016/j.jmr.2016.09.013 (can be downloaded here).
  46. C. Cadar, C. Cotet, L. Baia, L. Barbu-Tudoran, I. Ardelean, Probing into the mesoporous structure of carbon xerogels via the low-field NMR relaxometry of water and cyclohexane molecules, Microporous Mesoporous Mater., 251, 19-25(2017).
  47. A. Cretu, C. Mattea, S. Stapf, I. Ardelean, The effect of silica nanoparticles on the pore structure of hydrating cement paste: a spatially resolved low-field NMR study, Molecular Physics 117, 1006-1014 (2019)     ttps://doi.org/10.1080/00268976.2018.1513581
  48. A. Crețu (Bede), C. Mattea, S. Stapf, I. Ardelean, The effect of silica fume and organosilane addition on the porosity of cement paste, Molecules 25 (8), 1762 (2020) https://doi.org/10.3390/molecules25081762
  49.  C. Cadar, A. Cretu, M. Moldovan, C. Mattea, S. Stapf, I. Ardelean, NMR T1–T2 correlation analysis of molecular absorption inside a hardened cement paste containing silanized silica fume, Molecular Physics 117, 1000-1005 (2019),  https://doi.org/10.1080/00268976.2018.1513582
  50. C. Cadar, I. Ardelean, Surface influence on the rotational and translational dynamics of molecules confined inside a mesoporous carbon xerogel, Magnetic Resonance in Chemistry 57 (10), 829-835 (2019)  https://doi.org/10.1002/mrc.4819
  51.  F Gallego-Gómez, C Cadar, C Lopez, I Ardelean, Microporosity Quantification via NMR Relaxometry, The Journal of Physical Chemistry C 123 (50), 30486-30491(2019) https://doi.org/10.1021/acs.jpcc.9b10398
  52. F Gallego-Gómez, C Cadar, C López, I Ardelean, Imbibition and dewetting of silica colloidal crystals: An NMR relaxometry study, Journal of colloid and interface science 561, 741-748(2020)https://doi.org/10.1016/j.jcis.2019.11.050
  53. V. Kushwah, D. Gomes Lopes, I. Koutsamanis, H. Plank, I. Ardelean, A. Sarkar, A. Prpich, M.T. Am Ende, H.T. Schmidt, P. Doshi, S.L. Shamblin, P. Laggner, A. Paudel, Evolution of the microstructure and the drug release upon annealing the drug-loaded lipid-surfactant microspheres, European Journal of Pharmaceutical Sciences 147, 105278 (2020) https://doi.org/10.1016/j.ejps.2020.105278
  54. D.D.B Nergis, P. Vizureanu, I. Ardelean, A.V. Sandu, O.C. Corbu, E. Matei, Revealing the Influence of Microparticles on Geopolymers’ Synthesis and Porosity, Materials 13 (14), 3211 (2020) https://doi.org/10.3390/ma13143211
  55. A. Nan, M. Suciu, I. Ardelean, M. Senila, R. Turcu, Characterization of the Nuclear Magnetic Resonance Relaxivity of Gadolinium Functionalized Magnetic Nanoparticles, Analytical Letters 54, 124-139 (2021) https://doi.org/10.1080/00032719.2020.1731522
  56. V. Kushwah, I. Saraf, T. Yeoh, I. Ardelean, H. Weber, A. Sarkar, R. Chen, T.Vogel, D, Modhave, P. Laggner, A. Paudel, Interplay of Aging and Lot-to-Lot Variability on the Physical and Chemical Properties of Excipients: A Case Study of Mono-and Diglycerides, Mol. Pharmaceutics 2021; https://doi.org/10.1021/acs.molpharmaceut.0c00847
  57. J Stepišnik, I Ardelean, A Mohorič, Molecular self-diffusion in internal magnetic fields of porous medium investigated by NMR MGSE method, Journal of Magnetic Resonance 328, 106981 (2021)  https://doi.org/10.1016/j.jmr.2021.106981
  58. I. Ardelean, The Effect of an Accelerator on Cement Paste Capillary Pores: NMR Relaxometry Investigations, Molecules 26 (17), 5328 (2021) https://www.mdpi.com/1420-3049/26/17/5328
  59. L.M. Nicula, O. Corbu, I. Ardelean, A.V. Sandu, M Iliescu, D. Simedru, Freeze–Thaw Effect on Road Concrete Containing Blast Furnace Slag: NMR Relaxometry Investigations, Materials 14 (12), 3288 (2021)  https://doi.org/10.3390/ma14123288
  60. M. Oztop Berkay Berk, C. Cavdaroglu, L. Grunin, I. Ardelean, D. Kruk, G. Mazi, Use of Magic Sandwich Echo and Fast Field Cycling NMR Relaxometry on Honey Adulteration with Corn Syrup, J. Science of Food and Agriculture, 2021, https://doi.org/10.1002/jsfa.11606
  61. M.M. Rusu, C. Vilau, C. Dudescu, P. Pascuta, F. Popa, I. Ardelean, Characterization of the Influence of an Accelerator upon the Porosity and Strength of Cement Paste by Nuclear Magnetic Resonance (NMR) Relaxometry
    Analytical Letters, 2022, https://doi.org/10.1080/00032719.2022.2072855
  62. I. Lacan, M. Moldovan, C. Sarosi, I. Ardelean, Chitosan Effect on Hardening Dynamics of Calcium Phosphate Cement: Low-Field NMR Relaxometry Investigations. Polymers. 2022; 14(15):3042. https://doi.org/10.3390/polym14153042

C. Papers in refereed journals

  1. Ardelean, and D.E.Demco, Double Quantum Cross-Polarization with Restricted Molecular Motion, Rom. Journ. Phys. 37, (8), 783- 792(1992).
  2. Ardelean, and D.E. Demco, Dynamic Theory of Cross-Polarization under Fast Magic Angle Sample Spinning, Rom. Journ. Phys. 38, (7), 711- 716(1993).
  3. E. Demco, and I. Ardelean, Heteronuclear Coherence Transfer by Adiabatic Level-Crossing in the Rotating Frame”, Rom. Journ. Phys. 39, (5-6), 449-464(1994).
  4. D.E.Demco, and I. Ardelean, Spatial Localization in the Process of Cyclic Adiabatic Heteronuclear J-Coherence Transfer, Rom. Journ. Phys. 39, (9-10), 685-694(1994).
  5. D.E. Demco, and I. Ardelean, Spatially Localised Single Quantum   Heteronuclear Polarization Transfer in Solids in the Presence of Radiofrequency Field Gradients”, Rom. Journ. Phys. 40, (8-9), 859-876(1995).
  6. D.E.Demco, and I. Ardelean, The Influence of Molecular Motion on the NMR Cross-Polarization in Solids, Rom. Journ. Phys. 41, (9-10), 462-473(1996).
  7. D.E.Demco, and I. Ardelean, Homonuclear NMR Dipolar Decoupling and Recoupling in Rotating Solids”, Rom.Journ. Phys. 41, (9-10), 703-725(1996).
  8. Ardelean, G. Farrher, C. Mattea, R. Kimmich, Fluid diffusion in partially filled nanoscopic and microscopic porous materials, Modern Magnetic Reson., 1451-1457(2006).
  9. Farrher, I. Ardelean and R. Kimmich, Vapour contribution to the time dependence of the eff. diffusion coeff. in partially filled porous glasses, Diffusion Fundamentals 5, 9.1 -9.9(2007).
  10. Nechifor, C. Badea and I. Ardelean, Nuclear magnetic resonance studies of liquids morphology inside partially saturated porous media, Journal of Physics: Conference Series 182, 012012 (2009).
  11. C. Cadar, C. Cotet, L. Baia, I. Ardelean, Probing the connectivity and wettability of carbon aerogels and xerogels via low-field NMR, AIP Conference Proceedings 1917 (1), 040006 (2017)
  12. C. Badea, A. Bede, I. Ardelean, The effect of silica fume on early hydration of white Portland cement via fast field cycling-NMR relaxometry, AIP Conference Proceedings 1917 (1), 040001 (2017)
  13. A. Bede, I. Ardelean, Revealing the influence of water-cement ratio on the pore size distribution in hydrated cement paste by using cyclohexane, AIP Conference Proceedings 1917 (1), 040002 (2017)
  14. I. Ardelean, S. Miclaus, I.I. Ardelean, C. Moisescu, Magnetotactic bacteria and biogenic magnetite nanocrystals as potential contrast agents in magnetic resonance imaging, IEEE Xplore, 2018, DOI:10.23919/EMF-MED.2018.8526044

D.  Most important conference presentations

  1. I. Ardelean, C. Mattea, G. Fahhrer, R. Kimmich, Molecular diffusion in partially filled porous media: NMR investigations, The AMPERE XI NMR SCHOOL, Zakopane (Poland) June 1-6, 2003 (oral presentation)
  2. I. Ardelean, C. Mattea, G. Farrher, R. Kimmich; “NMR studiess of Diffusion in Partially Filled Porous Media”, AMPERE XI NMR SCHOOL, June 6-11, 2004, Zakopane, Poland (invited speaker).
  3. I.Ardelean, G.Farrher, C.Mattea, and R.Kimmich; “NMR study of the vapour phase contribution to diffusion in partially filed silica glasses with nanometer and micrometer pores”, 7th International Conference on Magnetic Resonance in Porous Media, July 4-8, 2004. Ecole Polytechnique, Palaiseau, France (oral presentation).
  4. I. Ardelean, G. Farrher, C. Mattea, and R. Kimmich, “NMR investigation of the vapour contribution to diffusion in porous media partially filled with liquids”, Euromar/EENC2005, Conference, July 3-8, 2005, Veldhoven, The Netherlands (invited speaker).
  5. I. Ardelean, Time dependent effective diffusion in partially filled mezoscopic pores from hundred microseconds to hundred miliseconds, 8 th Bologna Conference on NMR in Porous Media, 2006, Bologna (invited speaker).
  6. I. Ardelean, G. Farrher, R. Kimmich, Molecular dynamics under confinement in partially filled nano- and micro- structured samples: NMR investigations, XXII Conference on Radio and Microwave Spectroscopy RAMIS 2007, April 22- 25, Bedlewo-Poznan, Poland (invited speaker).
  7. I. Ardelean, M. Bogdan, C. Badea, A. Parnau, NMR diffusion and relaxation studies of molecules confined inside core-shell polymeric capsules, 9th Bologna Conference on Magnetic Resonance in Porous Media, 13-17 Iulie, 2008 Boston, USA (poster).
  8. I. Ardelean, Nuclear Magnetic Resonance investigations on partially saturated porous media, 11th Central and Eastern European Bruker Users Meeting, October 4-6, 2009, Cluj-Napoca (invited speaker).
  9. I. Ardelean, M. Simina, S. Muncaci, Relaxation of polar and nonpolar molecules confined inside partially saturated porous media with ferromagnetic impurities, 10th Bologna Conference on Magnetic Resonance in Porous Media, 12-16 Sept. 2010, Leipzig, Germania (poster).
  10. I. Ardelean, S. Muncaci, C. Mattea, S. Stapf, NMR relaxation of fluids confined inside porous media with magnetic impurities, 8th Conference on FFC NMR Relaxometry, 23-25 May 2013, Turin, Italy (invited speaker).
  11. I. Ardelean, A. Bede, A. Scurtu, Probing into the porous structure of hydrated cement paste with the NMR relaxometry of cyclohexane and ethanol molecules under partially saturated conditions, 13th International Bologna Conference on Magnetic Resonance in Porous Media (MRPM13), September 3-8, 2016, Bologna, Italy (oral presentation).
  12. I. Ardelean, A. Bede, C. Cadar, C. Badea, NMR relaxation in partially saturated pores: applications to porous glasses and cement paste, 1st Workshop on Nuclear Magnetic Resonance Relaxometry, February 13-15, 2017, Olsztyn, Poland (oral presentation), abstract.
  13. A. Bede, C. Mattea,  S. Stapf, I. Ardelean, Nuclear Magnetic Resonance relaxometry of water molecules at different depths in hydrating cement pastes with SiO2 nanoparticles, 1st Workshop on Nuclear Magnetic Resonance Relaxometry, February 13-15, 2017, Olsztyn, Poland (oral presentation), abstract.
  14. I. Ardelean, Applications of Field Cycling relaxometry to cement materials, Workshop: NMR Relaxometry for Interdisciplinary and Industrial Applications, 19.03.2019 – 22.03.2019, CEA/Grenoble, France (oral presentation)
  15. I. Ardelean and C. Cadar, Surface influence on the dynamics of molecules confined inside mesoporous xerogels: low field NMR investigations, Interpore 11th Annual Meeting, 6-10.5.2019, Valencia, Spain (oral presentation)
  16. I. Ardelean and C. Cadar, Surface effect on the molecular dynamics inside carbon xerogel mesopores 11th Conference on FFC NMR Relaxometry”, 5-7.06.2019, Pisa, Italy (invited speaker)
  17. I. Ardelean, NMR relaxation in partially saturated pores: applications to cement materials, carbon xerogels, and silica colloidal crystals, Webinar series on NMR Relaxometry Theory and Applications (organized in the frame of the COST action CA15209 ), 10th March 2021 (invited speaker):  https://www.youtube.com/watch?v=5x6oyiG4VTg