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Recent publications

This is a list of all publications from the group in the past few years. Some journals do not allow links directly to articles (even just the abstract), so in those cases the link takes you as close as possible.

Published articles


  • Sandra K. W. Fomete, Jack S. JohnsonNanna MyllysIvo NeefjesBernhard Reischl, and Coty N. Jen: Ion–Molecule Rate Constants for Reactions of Sulfuric Acid with Acetate and Nitrate Ions. The Journal of Physical Chemistry A, Vol. 126, 44, 8240-8248, 2022. 
  • Ivo Neefjes, Roope Halonen, Hanna Vehkamäki and Bernhard Reischl: Modeling approaches for atmospheric ion–dipole collisions: all-atom trajectory simulations and central field methods. Atmospheric Chemistry and Physics Vol 22, pp. 11155–11172, 2022.
  • Golnaz Roudsari, Olli H. Pakarinen, Bernhard Reischl and Hanna Vehkamäki: Atomistic and coarse-grained simulations reveal increased ice nucleation activity on silver iodide surfaces in slit and wedge geometries, Atmospheric Chemistry and Physics, Vol. 22, 10099-10114,, 2022.
  • Valtteri Tikkanen, Bernhard Reischl, Hanna Vehkamäki and Roope Halonen: Nonisothermal nucleation in the gas phase is driven by cool subcritical clusters, PNAS, Vol. 119, No. 28,, 2022.
  • Juha Kangasluoma, Angelica Bianco, Ivo Neefjes, Dina Alfaouri, Hanna Vehkamäki, Theo Kurtén, Lauri Ahonen and Monica Passananti:
    Separation of isomers using a Differential Mobility Analyser (DMA): comparison of experimental vs modelled ion mobility.
    Talanta, Vol 243, pp. 123339, 2022.
  • Huan Yang, Dian Ding, Aurora Skyttä, Runlong Cai, Markku Kulmala, and Juha Kangasluoma: Electrical mobility as an indicator for flexibly deducing the kinetics of nanoparticle evaporation, The Journal of Physical Chemistry C 126 (2022): 8794-8800.
  • Alfaouri, D., Passananti, M., Zanca, T., Ahonen, L., Kangasluoma, J., Kubečka, J., Myllys, N., and Vehkamäki, H.: A study on the fragmentation of sulfuric acid and dimethylamine clusters inside an atmospheric pressure interface time-of-flight mass spectrometer, Atmos. Meas. Tech., 15, 11–19,, 2022.
  • Huan Yang, Guanyu Song, and Chris Hogan: A molecular dynamics study of collisional heat transfer to nanoclusters in the gas phase, Journal of Aerosol Science 159 (2022): 105891.



  • Fatemeh Keshavarz, Theo Kurtén, Hanna Vehkamäki, and Juha Kangasluoma:
    Seed-Adsorbate Interactions as the Key of Heterogeneous Butanol and Diethylene Glycol Nucleation on Ammonium Bisulfate and Tetramethylammonium Bromide.
    Journal of Physical Chemistry A, Vol 124(50), pp. 10527–10539, 2020. 
  • Anna Shcherbacheva, Tracey Balehowsky, Jakub Kubečka, Tinja Olenius, Tapio Helin, Heikki Haario, Marko Laine, Theo Kurtén and Hanna Vehkamäki:
    Identification of molecular cluster evaporation rates, cluster formation enthalpies and entropies by Monte Carlo method. 
    Atmospheric Chemistry and Physics, Vol 20, pp. 15867–15906, 2020.
  • Fatemeh Keshavarz, Jakub Kubečka, Michel Attoui, Hanna Vehkamäki, Theo Kurtén and Juha Kangasluoma:
    Molecular Origin of the Sign Preference of Ion- Induced Heterogeneous Nucleation in a Complex Ionic Liquid-Diethylene Glycol System.
    Journal of Physical Chemistry C, Vol 124(49), pp. 26944–26952, 2020.
  •  Jiewen Shen, Jonas Elm, Hong-bin Xie, Jingwen Chen, Junfeng Niu and Hanna Vehkamäki:
    Structural Effects of Amines in Enhancing Methanesulfonic Acid-driven New Particle Formation. 
    Environmental Science & Technology Vol 54(21), pp. 13498–13508, 2020. 
  • Kayane K. Dingilian, Roope Halonen, Valtteri Tikkanen, Bernhard Reischl, Hanna Vehkamäki, and Barbara E. Wyslouzil:
    Homogeneous nucleation of carbon dioxide in supersonic nozzles I: Experiments and Classical Theories 
    Physical Chemistry Chemical Physics, Vol 22, pp. 19282-19298, 2020.
  •  Jonas Elm, Jakub Kubečka, Vitus Besel, Matias J. Jääskeläinen, Roope Halonen, Theo Kurtén, and Hanna Vehkamäki:
    Modelling the Formation and Growth of Atmospheric Molecular Clusters: A Review.  
    Journal of Aerosol Science Vol 149, 105621, 2020.
  • Vitus Besel, Jakub Kubečka, Theo Kurtén and Hanna Vehkamäki:
    Impact of Quantum Chemistry Parameter Choices and Cluster Distribution Model Settings on Modeled Atmospheric Particle Formation Rates.
    Journal of Physical Chemistry A Vol 124, 28 pp. 5931–5943, 2020.
  • Freja Rasmussen, Jakub Kubečka, Vitus Besel, Hanna Vehkamäki, Kurt Mikkelsen, Merete Bilde and Jonas Elm:
    Hydration of Atmospheric Molecular Clusters III: Procedure for Efficient Free Energy Surface Exploration of Large Hydrated Clusters.
    Journal of Physical Chemistry A Vol 124, 25 pp. 5253–5261, 2020.
  • Tommaso Zanca, Jakub Kubečka, Evgeni Zapadinsky, Monica Passananti, Theo Kurtén and Hanna Vehkamäki:
    Highly oxygenated organic molecule cluster decomposition in atmospheric pressure interface time-of-flight mass spectrometers
    Atmospheric Measurement Techniques, 13, pp. 3581-3593, 2020. 
  • Yiqun Lu, Ling Liu, An Ning, Gan Yang, Yiliang Liu, Theo Kurtén, Hanna Vehkamäki, Xiuhui Zhang, and Lin Wang:
    Atmospheric sulfuric acid-dimethylamine nucleation enhanced by trifluoroacetic acid
    Geophysical Reserch Letters Vol 47, e2019GL08562, 2020.
  • Golnaz Roudsari, Bernhard Reischl, Olli Pakarinen and Hanna Vehkamäki:
    Atomistic Simulation of Ice Nucleation on Silver Iodide (0001) Surfaces with Defects
    Journal of Physical Chemistry C Vol 124, pp. 436-445, 2020.
  • Keisuke Miyazawa, John Tracey, Bernhard Reischl, Peter Spijker, Adam S. Foster, Andrew L. Rohl and Takeshi Fukuma:
    Tip Dependence of Three-Dimensional Scanning Force Microscopy Images of Calcite-Water Interfaces Investigated by Simulation and Experiments
    Nanoscale 12, pp. 12856-12868, 2020.
  • Xu-Cheng He, Siddharth Iyer, Mikko Sipilä, Arttu Ylisirniö, Maija Peltola, Jenni Kontkanen, Rima Baalbaki, Mario Simon, Andreas Kürten, Yee Jun Tham, Janne Pesonen, Lauri R. Ahonen, Stavros Amanatidis, Antonio Amorim, Andrea Baccarini, Lisa Beck, Federico Bianchi, Sophia Brilke, Dexian Chen, Randall Chiu, Joachim Curtius, Lubna Dada, Antonio Dias, Josef Dommen, Neil M. Donahue, Jonathan Duplissy, Imad El Haddad, Henning Finkenzeller, Lukas Fischer, Martin Heinritzi, Victoria Hofbauer, Juha Kangasluoma, Changhyuk Kim, Theodore K. Koenig, Jakub Kubečka, Aleksandr Kvashnin, Houssni Lamkaddam, Chuan Ping Lee, Markus Leiminger, Zijun Li, Vladimir Makhmutov, Mao Xiao, Ruby Marten, Wei Nie, Antti Onnela, Eva Partoll, Tuukka Petäjä, Vili-Taneli Salo, Simone Schuchmann, Gerhard Steiner, Dominik Stolzenburg, Yuri Stozhkov, Christian Tauber, António Tomé, Olli Väisänen, Miguel Vazquez-Pufleau, Rainer Volkamer, Andrea C. Wagner, Mingyi Wang, Yonghong Wang, Daniela Wimmer, Paul M. Winkler, Douglas R. Worsnop, Yusheng Wu, Chao Yan, Qing Ye, Kari Lehtinen, Tuomo Nieminen, Hanna E. Manninen, Matti Rissanen, Siegfried Schobesberger, Katrianne Lehtipalo, Urs Baltensperger, Armin Hansel, Veli-Matti Kerminen, Richard C. Flagan, Jasper Kirkby, Theo Kurtén and Markku Kulmala:
    Determination of the collision rate coefficient between charged iodic acid clusters and iodic acid using the appearance time method
    Aerosol Science and Technology Vol. 55, pp. 231-242, 2020
  • Galib Hasan, Vili-Taneli Salo, Rashid R. Valiev, Jakub Kubečka, and Theo Kurtén: 
    Comparing reaction routes for (3RO· · · OR’) intermediates formed in peroxyradical self- and cross-reactions.
    J. Phys. Chem. A Vol. 124, pp. 8305–8320, 2020


  • Jiewen Shen, Hong-bin Xie, Jonas Elm, Fangfang Ma, Jingwen Cheng and Hanna Vehkamäki:
    Methanesulfonic Acid-driven New Particle Formation Enhanced by Monoethanolamine: A Computational Study
    Environmental Science & Technology Vol 53(24), pp- 14387-14397, 2019. 

  • Fatemeh Keshavarz, Anna Scherbacheva, Jakub Kubečka, Hanna Vehkamäki and Theo Kurtén:
    Computational Study of the Effect of Mineral Dust on Secondary Organic Aerosol Formation by Accretion Reactions of Closed-Shell Organic Compounds.
    Journal of Physical Chemistry A Vol 123, pp. 9008-9018, 2019. 

  • Ling Liu, Jie Zhong, Hanna Vehkamäki,Theo Kurtén, Lin Du, Xiuhui Zhang,Joseph S. Francisco and Xiao Cheng Zeng:
    Atmospheric Reaction of Methanol with SO3: Promoter or Quencher of New Particle Formation?
    PNAS (Proceedings of the National Academy of Sciences), 201915459, 2019. 
  • Roope Halonen, Evgeni Zapadinsky, Theo Kurtén, Hanna Vehkamäki, and Bernhard Reischl:
    Rate enhancement in collisions of sulfuric acid molecules due to long-range intermolecular forces
    Atmospheric Chemistry and Physics, Vol.19, 13355–13366, 2019. 
  • Pontus Roldin, Mikael Ehn, Theo Kurtén, Tinja Olenius, Matti Rissanen, Nina Sarnela, Jonas Elm, Pekka Rantala, Liqing Hao, Noora Hyttinen, Liine Heikkinen, Douglas Worsnop, Lukas Pichelstorfer, Carlton Xavier, Petri Clusius, Emilie Öström, Tuukka Petäjä, Markku Kulmala, Hanna Vehkamäki, Annele Virtanen, Ilona Riipinen, and Michael Boy:
    The role of highly oxygenated organic molecules in the Boreal aerosol-cloud-climate system.
    Nature Communications, Vol 10, 4370, 2019. 
  • Kubecka, J.; Besel, V.; Kurten, T.; Vehkamäki, H.; Configurational Sampling of Noncovalent (Atmospheric) Molecular Clusters: Sulfuric Acid and Guanidine. J. Phys. Chem. A. 123, (2019)
  • Keshavarz, F.; Scherbacheva, A.;  Kubečka, J.; Vehkamäki, H.; Kurten, T.; Computational Study of the Effect of Mineral Dust on Secondary Organic Aerosol Formation by Accretion Reactions of Closed-Shell Organic Compounds. J. Phys. Chem. A. 123, (2019) 
  • Valiev, R. R.; Hasan, G.; Salo, V.-T.; Kubečka, J.; Kurten, T. Intersystem Crossings Drive Atmospheric Gas-Phase Dimer Formation. J. Chem. Phys. A. 123, (2019)
  • Myllys, N.; Kubečka, J.; Besel, V.; Alfaouri, D.; Olenius, T.; Smith, J. N.; Passananti, M. Role of base strength, cluster structure and charge in sulfuric-acid-driven particle formation. Atmos. Chem. Phys. 19, (2019).
  • Monica Passananti, Evgeni Zapadinsky, Tommaso Zanca, Juha Kangasluoma, Nanna Myllys, Matti P. Rissanen, Theo Kurtén, Mikael Ehn, Michel Attoui and Hanna Vehkamäki: How Well Can We Predict Cluster Fragmentation Inside a Mass Spectrometer? Chemical Communications, 2019, 55, 5946 - 5949

  • Evgeni Zapadinsky, Monica Passananti, Nanna Myllys, Theo Kurtén and Hanna Vehkamäki: Modelling on Fragmentation of Clusters Inside a Mass Spectrometer. 
    Journal of Physical Chemistry A, Vol 123 (2), pp. 611–624, 2019

  • Ahonen, L.; Li, C.; Kubecka, J.; Iyer, S.; Vehkamäki, H.; Petäjä, T.; Kulmala, M.; Hogan, C. J; Ion Mobility-Mass Spectrometry of Iodine Pentoxide-Iodic Acid Hybrid Cluster Anions in Dry and Humidified Atmosphere, J. Phys. Chem. Lett. 10, 1935-1941 (2019).


  • Hao Li, Jie Zhong, Hanna Vehkamäki, Theo Kurtén, Weigang Wang, Maofa Ge, Shaowen Zhang, Zesheng Li, Xiuhui Zhang, Joseph Francisco, Xiao Cheng Zeng: 
    Self-Catalytic Reaction of SO3 and NH3 to Produce Sulfamic Acid and Its Implication to Atmospheric Particle Formation. 
    Journal of the American Chemical Society, Vol 140 (35), pp. 11020–11028, 2018.
  • Ling Liu, Oona Kupiainen-Mӓӓttӓ, Haijie Zhang, Hao Li, Jie Zhong, Theo Kurtén, Hanna Vehkamäki, Shaowen Zhang, Yun-Hong Zhang, Maofa Ge, Xiuhui Zhang, and Zesheng Li:Clustering Mechanism of Oxocarboxylic Acids Involving Hydration Reaction: Implications for the Atmospheric Models. Journal of Chemical Physics, Vol 148, 214303 2018.
  • Nanna Myllys, Tuomo Ponkkonen, Monica Passananti, Jonas Elm, Hanna Vehkamäki and Tinja Olenius: Guanidine — A Highly Efficient Stabilizer in Atmospheric New-Particle Formation. Journal of Physical Chemistry A, Vol 122, pp. 4717–4729, 2018.
  • Roope Halonen, Evgeni Zapadinsky and Hanna Vehkamäki: Deviation from equilibrium conditions in molecular dynamic simulations of homogeneous nucleation.  Journal of Chemical Physics,Vol 148, 164508, 2018. 
  • Taina Ruuskanen, Hanna Vehkamäki, Laura Riuttanen and Antti Lauri: An Exploratory Study of the Learning of Transferable Skills in a Research-Oriented Intensive Course in Atmospheric Sciences. Sustainability, Vol. 10(5), pp. 1385 2018.
  • Anni Määttänen, Joonas Merikanto, Henning Henschel, Jonathan Duplissy, Risto Makkonen, Ismael K. Ortega, and Hanna Vehkamäki: New parameterizations for neutral and ion-induced sulfuric acid-water particle formation in nucleation and kinetic regimes. Journal of Geophysical Research -Atmospheres, Vol. 123(2), pp. 1269–1296, 2018.
  • Viivi Hirvonen, Nanna Myllys, Theo Kurtén, and Jonas Elm: Closed-Shell Organic Compounds Might Form Dimers at the Surface of Molecular Clusters, J. Phys. Chem. A (2018), 122, 1771–1780.
  • Ulrich Krieger, Franziska Siegrist, Claudia Marcolli, Eva Emanuelsson, Freya Gøbel, Merete Bilde, Aleksandra Marsh, Jonathan Reid, Andrew Huisman, Ilona Riipinen, Noora Hyttinen, Nanna Myllys, Theo Kurtén, Thomas Bannan, and David Topping: A reference data set for validating vapor pressure measurement techniques: Homologous series of polyethylene glycols, Atmos. Meas. Tech., 11, 49-63, 2018.
  • Dominik Stolzenburg, Lukas Fischer, Alexander L. Vogel, Martin Heinritzi, Meredith Schervish, Mario Simon, Andrea C. Wagner, Lubna Dada, Lauri R. Ahonen, Antonio Amorim, Andrea Baccarini, Paulus S. Bauer, Bernhard Baumgartner, Anton Bergen, Federico Bianchi, Martin Breitenlechner, Sophia Brilke, Stephany Buenrostro Mazon, Dexian Chen, António Dias, Danielle C. Draper, Jonathan Duplissy, Imad El Haddad, Henning Finkenzeller, Carla Frege, Claudia Fuchs, Olga Garmash, Hamish Gordon, Xucheng He, Johanna Helm, Victoria Hofbauer, Christopher R. Hoyle, Changhyuk Kim, Jasper Kirkby, Jenni Kontkanen, Andreas Kürten, Janne Lampilahti, Michael Lawler, Katrianne Lehtipalo, Markus Leiminger, Huajun Mai, Serge Mathot, Bernhard Mentler, Ugo Molteni, Wei Nie, Tuomo Nieminen, John B. Nowak, Andrea Ojdanic, Antti Onnela, Monica Passananti, Tuukka Petäjä, Lauriane L. J. Quéléver, Matti P. Rissanen, Nina Sarnela, Simon Schallhart, Christian Tauber, António Tomé, Robert Wagner, Mingyi Wang, Lena Weitz, Daniela Wimmer, Mao Xiao, Chao Yan, Penglin Ye, Qiaozhi Zha, Urs Baltensperger, Joachim Curtius, Josef Dommen, Richard C. Flagan, Markku Kulmala, James N. Smith, Douglas R. Worsnop, Armin Hansel, Neil M. Donahue, and Paul M. Winkler: Rapid growth of organic aerosol nanoparticles over a wide tropospheric temperature range, PNAS, .
  • Evgeni Zapadinsky, Monica Passananti, Nanna Myllys, Theo Kurtén and Hanna Vehkamäki: Modelling on Fragmentation of Clusters Inside a Mass Spectrometer, J. Phys. Chem. A. Accepted.


  • David Brus , Lenka Škrabalová, Erik Herrmann , Tinja Olenius , Tereza Trávnicková , Ulla Makkonen and Joonas Merikanto: Temperature-Dependent Diffusion of H2SO4 in Air at Atmospherically Relevant Conditions: Laboratory Measurements Using Laminar Flow Technique, Atmosphere, 8, 132; doi:10.3390/atmos8070132, 2017.
  • Jonas Elm, ,
  • Tinja Olenius, Roope Halonen, Theo Kurtén, Henning Henschel, Oona Kupiainen-Määttä, Ismael K. Ortega, Coty N. Jen, Hanna Vehkamäki, and Ilona Riipinen: 
    New particle formation from sulfuric acid and amines: comparison of mono-, di-, and trimethylamines Journal of Geophysical Research - Atmospheres, Vol. 122(13), pp. 7103-7118, 2017.
  • Chemical Characterization of Gas- and Particle-Phase Products from the Ozonolysis of α-Pinene in the Presence of Dimethylamine, Environ. Sci. Technol., 2017, 51, 5602–5610
  • Jonas Elm,
  • Nanna Myllys , Tinja Olenius , Theo Kurtén , Hanna Vehkamäki , Ilona Riipinen and Jonas Elm: Effect of Bisulfate, Ammonia, and Ammonium on the Clustering of Organic Acids and Sulfuric Acid, J. Phys. Chem. A, 2017, 121, 4812–4824
  • Hong-bin Xie , Jonas Elm , Roope Halonen , Nanna Myllys , Theo Kurtén , Markku Kulmala , and Hanna Vehkamäki: The Atmospheric Fate of Monoethanolamine: Enhancing New-particle Formation of Sulfuric Acid as an Important Removal Process, Environ. Sci. Technol., 2017
  • Jonas Elm, Monica Passananti, Theo Kurtén, Hanna Vehkamäki: Diamines Can Initiate New Particle Formation in the Atmosphere, J. Phys. Chem. A, 2017, 121, 6155-6164.


  • Oona Kupiainen-Määttä: A Monte Carlo approach for determining cluster evaporation rates from concentration measurements, Atmos. Chem. Phys., 16, 14585-14598, 2016
  • Jonas Elm, Nanna Myllys, Theo Kurtén: "Phosphoric acid–a potentially elusive participant in atmospheric new particle formation", Molecular Physics, 115:17-18, 2168-2179, DOI: 10.1080/00268976.2016.1262558
  • Jonas Elm, Kasper Kristensen: "Basis Set Convergence of the Binding Energies of Strongly Hydrogen-Bonded Atmospheric Clusters", Phys. Chem. Chem. Phys.
  • Lauri Partanen, Hanna Vehkamäki, Klavs Hansen, Jonas Elm, Henning Henschel, Theo Kurtén, Roope Halonen, Evgeni Zapadinsky: "Effect of Conformers on Free Energies of Atmospheric Complexes", Journal of Physical Chemistry A, vol 120, pp 8613-8624.
  • Nanna Myllys, Jonas Elm and Theo Kurtén: "Density Functional Theory Basis Set Convergence of Sulfuric Acid-Containing Molecular Clusters", Computational and Theoretical Chemistry, Vol 1098, pp 1-12, 2016.
  • Mikko Sipilä, Nina Sarnela, Tuija Jokinen, Henning Henschel, Heikki Junninen, Jenni Kontkanen, Stefanie Richters, Juha Kangasluoma, Alessandro Franchin, otso Peräkyl1, Matti P. Rissanen, Mikael Ehn, hanna Vehkamäki, Theo Kurten, Torsten Berndt, Tuukka Petäjä, Douglas Worsnop, Darius Ceburnis, Veli-Matti Kerminen, Markku Kulmala and Colin o’Dowd: Molecular-scale evidence of aerosol particle formation via sequential addition of HIO3.  Nature Vol 537, pp. 532–534, 2016
  • Elham Baranizadeh, Benjamin N. Murphy, Jan Julin, Saeed Falahat, Carly L. Reddington, Antti Arola, Lars Ahlm, Santtu Mikkonen, Christos Fountoukis, David Patoulias, Andreas Minikin, Thomas Hamburger, Ari Laaksonen, Spyros N. Pandis, Hanna Vehkamäki, Kari E. J. Lehtinen, and Ilona Riipinen: Implementation of state-of-the-art ternary new particle formation scheme to the regional chemical transport model PMCAMx-UF in Europe. Geoscientific Model Development Vol 9, pp. 2741-2754, 2016.
  • Markku Kulmala , Urmas Hõrrak, Hanna E. Manninen, Sander Mirme, Madis Noppel, Katrianne Lehtipalo, Heikki Junninen, Hanna Vehkamäki,Veli-Matti Kerminen, Steffen M. Noe and Hannes Tammet: The legacy of Finnish-Estonian air ion and aerosol workshops. Boreal Environmental Research, Vol 21 pp. 181-206, 2016.

  • Jonas Elm, Coty Jen, Theo Kurtén, Hanna Vehkamäki: Strong Hydrogen Bonded Molecular Interactions Between Atmospheric Diamines and Sulfuric Acid. Journal of Physical Chemistry A, Vol 120(20), pp 3693-3700, DOI: 10.1021/acs.jpca.6b03192, 2016.
  • Jonas Elm, Nanna Myllys, Jan-Niclas Luy, Theo Kurtén and Hanna Vehkamäki: " The E ff ect of Water and Bases on the Clustering of a Cyclohexene Autoxidation Product C 6 H 8 O 7 with Sulfuric Acid", Journal of Physical Chemitry A, Vol 120 (14), pp 2240-2249.
  • Katrianne Lehtipalo, Linda Rondo, Jenni Kontkanen, Siegfried Schobesberger, Tuija Jokinen, Nina Sarnela, Andreas Kürten, Sebastian Ehrhart, Alessandro Franchin, Tuomo Nieminen, Francesco Riccobono,   Mikko Sipilä, Taina Yli-Juuti, Jonathan Duplissy, Alexey Adamov, Lars Ahlm, João Almeida, Antonio Amorim, Federico Bianchi, Martin Breitenlechner, Josef Dommen, Andrew J. Downard, Eimear M. Dunne, Richard C. Flagan, Roberto Guida, Jani Hakala, Armin Hansel, Werner Jud, Juha Kangasluoma, Veli-Matti Kerminen, Helmi Keskinen, Jaeseok Kim, Jasper Kirkby, Agnieszka Kupc, Oona Kupiainen-Määttä, Ari Laaksonen, Michael J. Lawler, Markus Leiminger, Serge Mathot, Tinja Olenius, Ismael K. Ortega, Antti Onnela, Tuukka Petäjä, Arnaud Praplan, Matti P. Rissanen, Taina Ruuskanen, Filipe D. Santos, Simon Schallhart, Ralf Schnitzhofer, Mario Simon, James N. Smith, Jasmin Tröstl, Georgios Tsagkogeorgas, António Tomé,  Petri Vaattovaara, Hanna Vehkamäki, Aron E. Vrtala, Paul E. Wagner, Christina Williamson, Daniela Wimmer, Paul M. Winkler, Annele Virtanen, Neil M. Donahue, Kenneth S. Carslaw, Urs Baltensperger, Ilona Riipinen, Joachim Curtius, Douglas R. Worsnop and Markku Kulmala: The effect of acid-base clustering and ions on the growth of atmospheric nano-particles. Nature Communications 7, Article number: 11594, DOI: 10.1038/ncomms11594, 2016.
  • Jenni Kontkanen, Tinja Olenius, Katrianne Lehtipalo, Hanna Vehkamäki, Markku Kulmala and Kari E. J. Lehtinen: Growth of atmospheric clusters involving cluster-cluster collisions: comparison of different growth rate methods. Atmospheric Chemistry and Physics, Vol. 16, 5545-5560, 2016.
  • Juha Kangasluoma, Alexander Samodurov, Michel Attoui, Alessandro Franchin, Heikki Junninen, Frans Korhonen, Theo Kurtén, Hanna Vehkamäki, Mikko Sipilä, Katrianne Lehtipalo, Douglas R. Worsnop, Tuukka Petäjä and Markku Kulmala: Heterogeneous Nucleation Onto Ions and Neutralized Ions - Insights Into Sign-Preference.The Journal of Chemical Physics, Vol 120 (13), pp 7444–7450, 2016. 
  • Henning Henschel, Theo Kurtén and Hanna Vehkamäki: A Computational Study on the Effect of Hydration on New Particle Formation in the Sulfuric Acid/Ammonia and Sulfuric Acid/Dimethylamine Systems. Journal of Physical Chemistry A, Vol 120 (11), pp 1886–1896, 2016. 
  • Narcisse Tsona, Nicolai Bork, Ville Loukonen, Hanna Vehkamäki: A Closure Study of the Reaction between Sulfur Dioxide and the Sulfate Radical Ion from First-Principles Molecular Dynamics Simulations. Journal of Physical Chemistry A, Vol 120 (7), pp 1046–1050, 2016. 
  • Nanna Myllys, Jonas Elm, Roope Halonen, Theo Kurtén, and Hanna Vehkamäki: Coupled Cluster Evaluation of the Stability of Atmospheric Acid-Base Clusters with up to 10 Molecules. Journal of Physical Chemistry A, 120 (4), pp 621–630, 2016. 
  • Ismael Ortega Colomer, Neil M. Donahue, Theo Kurtén, Markku Kulmala, Cristian Focsa and Hanna Vehkamäki: Can Highly Oxidized Organics Contribute to Atmospheric New Particle Formation? Journal of Physical Chemistry A, Vol 120, pp 1452–1458, 2016. 
  • Jonathan Duplissy, Joonas Merikanto, Alessandro Franchin, G. Tsagkogeorgas Juha Kangasluoma, Daniela Wimmer, Henri Vuollekoski, Sigfried Schobesberger, Katrianne Lehtipalo, Richard C. Flagan, David. Brus, Neil.M. Donahue, Hanna Vehkamäki, Joao Almeida, Antonio Amorim, Peter Barmet, Federico Bianchi, Martin Breitenlechner, Eimear M. Dunne, Roberto Guida, Henning Henschel, Heikki Junninen, Jasper Kirkby, Andreas Kürten, Aagnieszka Kupc, Anni Määttänen, Vladimir Makhmutov, Serge Mathot, Tuomo Nieminen, Antti Onnela, Arnaud P. Praplan, Francesco Riccobono, Linda Rondo, Gerhard Steiner, Antonio Tome, Hansueli Walther, Urs Baltensperger, Ken S. Carslaw, Josef Dommen, Armin Hansel, Tuukka Petäjä, Mikko Sipilä, Frank Stratmann, Aron Vrtala, Paul .E. Wagner, Doug .R. Worsnop, Joachim Curtius and Markku Kulmala: Effect of ions on sulfuric acid-water binary particle formation II: Experimental data and comparison with QC-normalized classical nucleation theory. Journal of Geophysical Research - Atmospheres, Vol 121, pp 1752-1775, 2016. DOI: 10.1002/2015JD023539
  • Joonas Merikanto, Jonathan Duplissy, Anni Määttänen, Henning Henschel, Neil M. Donahue, David Brus, Siegfried Schobesberger, Markku Kulmala, and Hanna Vehkamäki: Effect of ions on sulfuric acid-water binary particle formation I: Theory for kinetic and nucleation-type particle formation and atmospheric implications. Journal of Geophysical Research - Atmospheres, Vol 121, pp. 1736-175,1 2016. DOI: 10.1002/2015JD023538 




  • Oona Kupiainen-Määttä, Tinja Olenius, Theo Kurtén and Hanna Vehkamäki: CIMS sulfuric acid detection efficiency enhanced by amines due to higher dipole moments: a computational study. J. Phys. Chem. A, Vol 117, pp. 14109–14119, 2013.
  • Joao Almeida, Siegfried Schobesberger, Andreas Kürten, Ismael K. Ortega, Oona Kupiainen-Määttä, Arnaud P. Praplan, Alexey Adamov, Antonio Amorim,Federico Bianchi, Martin Breitenlechner, André David, Josef Dommen, Neil M. Donahue, Andrew Downard, Eimear Dunne, Jonathan Duplissy, Sebastian Ehrhart, Richard C. Flagan, Alessandro Franchin, Roberto Guida, Jani Hakala, Armin Hansel, Martin Heinritzi, Henning Henschel, Tuija Jokinen, Heikki Junninen, Maija Kajos, Juha Kangasluoma, Helmi Keskinen, Agnieszka Kupc, Theo Kurtén, Alexander N. Kvashin, Ari Laaksonen, Katrianne Lehtipalo, Markus Leiminger, Johannes Leppä, Ville Loukonen, Vladimir Makhmutov, Serge Mathot,Matthew J. McGrath, Tuomo Nieminen, Tinja Olenius, Antti Onnela, Tuukka Petäjä, Francesco Riccobono, Ilona Riipinen, Matti Rissanen, Linda Rondo, Taina Ruuskanen, Filipe D. Santos, Nina Sarnela, Simon Schallhart, Ralf Schnitzhofer, John H. Seinfeld, Mario Simon, Mikko Sipilä, Yuri Stozhkov, Frank Stratmann, Antonio Tomé, Jasmin Tröstl, Georgios Tsagkogeorgas, Petri Vaattovaara, Yrjö Viisanen,Annele Virtanen, Aron Vrtala, Paul E. Wagner, Ernest Weingartner, Heike Wex, Christina Williamson, Daniela Wimmer, Penglin Ye, Taina Yli-Juuti,Kenneth S. Carslaw, Markku Kulmala, Joachim Curtius, Urs Baltensperger, Douglas R. Worsnop, Hanna Vehkamäki, and Jasper Kirkby: Molecular understanding of sulphuric acid-amine particle nucleation in the atmosphere. Nature, Vol 502, pp. 359–363, 2013.
  • Kai Ruusuvuori, Theo Kurtén, Ismael K. Ortega, Jennifer Faust and Hanna Vehkamäki: Proton affinities of candidates for positively charged ambient ions in the boreal forest. Atmospheric Chemistry and Physics, Vol 13, pp. 10397–10404, 2013..
  • Siegfried Schobesberger, Heikki Junninen, Federico Bianchi, Gustaf Lönn, Mikael Ehn, Katrianne Lehtipalo, Josef Dommen, Sebastian Ehrhart, Ismael K. Ortega, Alessandro Franchin, Tuomo Nieminen, Francesco Riccobono, Manuel Hutterli, Jonathan Duplissy, João Almeida, Antonio Amorim, Martin Breitenlechner, Andrew J. Downard, Eimear M. Dunne, Richard C. Flagan, Maija Kajos, Helmi Keskinen, Jasper Kirkby, Agnieszka Kupc, Andreas Kürten, Theo Kurtén, Ari Laaksonen, Serge Mathot, Antti Onnela, Arnaud P. Praplan, Linda Rondo, Filipe D. Santos, Simon Schallhara, Ralf Schnitzhofer, Mikko Sipilä, António Tomé, Georgios Tsagkogeorgas, Hanna Vehkamäki, Daniela Wimmer, Urs Baltensperger, Kenneth S. Carslaw, Joachim Curtius, Armin Hansel, Tuukka Petäjä, Markku Kulmala, Neil M. Donahue, and Douglas R. Worsnop:Molecular understanding of atmospheric particle formation from sulfuric acid and large oxidized organic molecules. PNAS, doi:10.1073/pnas.1306973110, 2013. ..
  • Madis Noppel, Hanna Vehkamäki, Paul Winkler, Markku Kulmala, and Paul Wagner: Heterogeneous nucleation in multi-component vapor on a partially wettable charged conducting particle. II. The generalized Laplace, Gibbs-Kelvin and Young equations and application to nucleation.  Journal of Chemical Physics,Vol 139, 134108, 2013.
  • Madis Noppel, Hanna Vehkamäki, Paul Winkler, Markku Kulmala, and Paul Wagner, Heterogeneous nucleation in multi-component vapor on a partially wettable charged conducting particle. I. Formulation of general equations. Electrical surface and line excess quantities.  Journal of Chemical Physics, Vol 139, 134107, 2013
  • Tinja Olenius, Oona Kupiainen-Määttä, Ismael K. Ortega, Theo Kurtén, and Hanna Vehkamäk, Free energy barrier in the growth of sulfuric acid-ammonia and sulfuric acid-dimethylamine clusters. Journal of Chemical Physics, Vol. 139, 084312, 2013.
  • Donahue, N.M., Ortega, I.K., Chuang, W., Riipinen, I., Riccobono, F., Schobesberger, S., Dommen, J., Kulmala, M., Worsnop, D., and Vehkamäki, H., How Do Organic Vapors Contribute to New-Particle Formation?. Faraday Discussions, DOI: 10.1039/C3FD00046J, 2013
  • Tinja Olenius, Siegfried Schobesberger, Oona Kupiainen-Määttä, Alessandro Franchin, Heikki Junninen, Ismael K. Ortega, Theo Kurtén, Ville Loukonen, Douglas R. Worsnop, Markku Kulmala and Hanna Vehkamäki,Comparing simulated and experimental molecular cluster distributions. Faraday Discussions, DOI: 10.1039/C3FD00031A, 2013.
  • Hannah Leverentz, Ilja Siepmann, Donald Truhlar, Ville Loukonen and Hanna Vehkamäki, Energetics of Atmospherically Implicated Clusters Made of Sulfuric Acid, Ammonia, and Dimethyl Amine. Journal of Physical Chemistry A, Vol 117 (18), pp 3819–3825, 2013.
  • Nicolai Bork, Theo Kurtén and Hanna Vehkamäki, Exploring the atmospheric chemistry of O2SO3 - and assessing the maximum turnover number of ion catalysed H2SO4 formation. Atmospheric Chemistry and Physics, Vol 13, pp 3695-3703, 2013.
  • Nicolai Bork, Ville Loukonen and Hanna Vehkamäki, Reactions and Reaction Rates of Atmospheric SO2 and O3 -(H2O)n Collisions via Molecular Dynamics Simulations. Journal of Physical Chemistry A 117, pp 3143–3148, 2013.
  • Ismo Napari and Hanna Vehkamäki,On the similarity of equilibrium and critical clusters in atomic vapors. Journal of Chemical Physics, Vol 138, 104504, 2013.
  • Markku Kulmala, Jenni Kontkanen, Heikki Junninen, Katrianne Lehtipalo, Hanna E. Manninen, Tuomo Nieminen, Tuukka Petäjä, Mikko Sipilä, Siegfried Schobesberger, Pekka Rantala, Alessandro Franchin, Tuija Jokinen, Emma Järvinen, Mikko Äijälä, Juha Kangasluoma, Jani Hakala, Pasi P. Aalto, Pauli Paasonen, Jyri Mikkilä, Joonas Vanhanen, Juho Aalto, Hannele Hakola, Ulla Makkonen, Taina Ruuskanen, Roy L. Mauldin III, Jonathan Duplissy, Hanna Vehkamäki, Jaana Bäck, Aki Kortelainen, Ilona Riipinen, Theo Kurten, Murray V. Johnston, James N. Smith, Mikael Ehn, Thomas. F. Mentel, Kari E.J. Lehtinen, Ari Laaksonen, Veli-Matti Kerminen, and Douglas R. Worsnop, Direct observations of atmospheric nucleation. Science, Vol 339, 943-946, 2013.


  • Pauli Paasonen, Tinja Olenius, Oona Kupiainen,Theo Kurtén, Tuukka Petäjä, Wolfram Birmili, Amar Hamed, Min Hu, L. Gregory Huey, Christian Plass-Duelmer, James N. Smith,Alfred Wiedensohler, Ville Loukonen, Matthew J. McGrath, Ismael K. Ortega, Ari Laaksonen, Hanna Vehkamäki, Veli-Matti Kerminen, and Markku Kulmala, On the formation of sulphuric acid - amine clusters in varying atmospheric conditions and its influence on atmospheric new particle formation. Atmospheric Chemistry and Physics, Vol 12, pp 9113-9133, 2012.
  • Hanna Vehkamäki and Ilona Riipinen, Thermodynamics and kinetics of atmospheric aerosol particle formation and growth. Chemical Society Reviews, Vol 41 (15), pp 5160-5173, 2012.
  • Mauritz J. Ryding, Kai Ruusuvuori, Patrik U. Andersson, Alexey S. Zatula, Matthew J. McGrath, Theo Kurtén, Ismael K. Ortega, Hanna Vehkamäki, and Einar Uggerud, Structural Rearrangements and Magic Numbers in Reactions between Pyridine-Containing Water Clusters and Ammonia J. Phys. Chem. A, 2012, 116 (20), pp 4902–4908, doi: 10.1021/jp3021326
  • Ortega, IK; Suni, T; Boy, M; Grönholm, T; Manninen, H E; Nieminen, T; Ehn, M; Junninen, H; Hakola, H; Hellén, H; Valmari, T; Arvela, H; Zegelin, S; Hughes, D; Kitchen, M; Cleugh, H; Worsnop, DR; Kulmala, M; and Kerminen, V.-M., New insights into nocturnal nucleation. Atmospheric Chemistry and Physics, Vol 12, 4297-4312
  • N. Bork, T. Kurtén, M. B. Enghoff, J. O. P. Pedersen, K. V. Mikkelsen, and H. Svensmark, Structures and reaction rates of the gaseous oxidation of SO 2 by an O 3 - (H 2 O) 0-5 cluster a density functional theory investigation Atmos. Chem. Phys., 12, 3639-3652, 2012, doi:10.5194/acp-12-3639-2012
  • Oona Kupiainen, Ismael K. Ortega, Theo Kurtén, and Hanna Vehkamäki, Amine substitution into sulfuric acid – ammonia clusters Atmos. Chem. Phys., Vol. 12, 3591-3599, 2012
  • Ismael K. Ortega, Oona Kupiainen, Theo Kurtén, Tinja Olenius, Olli Wilkman, Matthew J. McGrath, Ville Loukonen, and Hanna Vehkamäki, From quantum chemical formation free energies to evaporation rates Atmos. Chem. Phys., Vol. 12, 225–235, 2012.
  • Hanna Vehkamäki, Matthew McGrath, Theo Kurtén, Jan Julin, Kari E. J. Lehtinen, and Markku Kulmala, Rethinking the application of the first nucleation theorem to particle formation Journal of Chemical Physics, Vol 136, 094107, 2012.
  • Matthew J. McGrath, Tinja Olenius, Ismael K. Ortega, Ville Loukonen, Pauli Paasonen, Theo Kurtén, Markku Kulmala, and Hanna Vehkamäki, Atmospheric Cluster Dynamics Code: a flexible method for solution of the birth-death equations Atmospheric Chemistry and Physics, Vol 12, pp. 2345-2355, 2012.
  • Paul M. Winkler, Aron Vrtala, Gerhard Steiner, Daniela Wimmer, Hanna Vehkamäki, Kari E. J. Lehtinen, Georg P. Reischl, Markku Kulmala and Paul E. Wagner, Quantitative characterization of critical nanoclusters nucleated on large single molecules Physical Review Letters, Vol 108, 085701, 2012.


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