TY - JOUR A1 - Lehtipalo, Katrianne A1 - Rondo, Linda A1 - Kontkanen, Jenni A1 - Schobesberger, Siegfried A1 - Jokinen, Tuija A1 - Sarnela, Nina A1 - Kürten, Christoph Andreas A1 - Ehrhart, Sebastian A1 - Franchin, Alessandro A1 - Nieminen, Tuomo A1 - Riccobono, Francesco A1 - Sipilä, Mikko A1 - Yli-Juuti, Taina A1 - Duplissy, Jonathan A1 - Adamov, Alexey A1 - Ahlm, Lars A1 - Almeida, Joao A1 - Amorim, Antonio A1 - Bianchi, Federico A1 - Breitenlechner, Martin A1 - Dommen, Josef A1 - Downard, Andrew A1 - Dunne, Eimear M. A1 - Flagan, Richard C. A1 - Guida, Roberto A1 - Hakala, Jani A1 - Hansel, Armin A1 - Jud, Werner A1 - Kangasluoma, Juha A1 - Kerminen, Veli-Matti A1 - Keskinen, Helmi A1 - Kim, Jaeseok A1 - Kirkby, Jasper A1 - Kupc, Agnieszka A1 - Kupiainen-Määttä, Oona A1 - Laaksonen, Ari A1 - Lawler, Michael Joseph A1 - Leiminger, Markus A1 - Mathot, Serge A1 - Olenius, Tinja A1 - Ortega, Ismael K. A1 - Onnela, Antti A1 - Petäjä, Tuukka A1 - Praplan, Arnaud Patrick A1 - Rissanen, Matti P. A1 - Ruuskanen, Taina A1 - Santos, Filipe Duarte A1 - Schallhart, Simon A1 - Schnitzhofer, Ralf A1 - Simon, Mario A1 - Smith, James N. A1 - Tröstl, Jasmin A1 - Tsagkogeorgas, Georgios A1 - Tomé, Antonio A1 - Vaattovaara, Petri A1 - Vehkamäki, Hanna A1 - Vrtala, Aron A1 - Wagner, Paul E. A1 - Williamson, Christina A1 - Wimmer, Daniela A1 - Winkler, Paul M. A1 - Virtanen, Annele A1 - Donahue, Neil McPherson A1 - Carslaw, Kenneth S. A1 - Baltensperger, Urs A1 - Riipinen, Ilona A1 - Curtius, Joachim A1 - Worsnop, Douglas R. A1 - Kulmala, Markku T1 - The effect of acid-base clustering and ions on the growth of atmospheric nano-particles T2 - Nature Communications N2 - The growth of freshly formed aerosol particles can be the bottleneck in their survival to cloud condensation nuclei. It is therefore crucial to understand how particles grow in the atmosphere. Insufficient experimental data has impeded a profound understanding of nano-particle growth under atmospheric conditions. Here we study nano-particle growth in the CLOUD (Cosmics Leaving OUtdoors Droplets) chamber, starting from the formation of molecular clusters. We present measured growth rates at sub-3 nm sizes with different atmospherically relevant concentrations of sulphuric acid, water, ammonia and dimethylamine. We find that atmospheric ions and small acid-base clusters, which are not generally accounted for in the measurement of sulphuric acid vapour, can participate in the growth process, leading to enhanced growth rates. The availability of compounds capable of stabilizing sulphuric acid clusters governs the magnitude of these effects and thus the exact growth mechanism. We bring these observations into a coherent framework and discuss their significance in the atmosphere. KW - Atmospheric chemistry KW - Biogeochemistry Y1 - 2016 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/50609 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-506098 SN - 2041-1723 N1 - This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ VL - 7 IS - Art. 11594 SP - 1 EP - 9 PB - Nature Publishing Group UK CY - [London] ER -