Experimental evidence for internal structure in aqueous-organic nanodroplets |
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Authors: | Wyslouzil Barbara E Wilemski Gerald Strey Reinhard Heath Christopher H Dieregsweiler Uta |
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Affiliation: | Chemical and Biomolecular Engineering Department, The Ohio State University, Columbus, OH 43210, USA. wyslouzil.1@osu.edu |
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Abstract: | The spatial distribution of species within an aerosol droplet influences how it interacts with its environment. Despite the ubiquity of multicomponent nanodroplets in natural and technological aerosols, there are no published measurements of their internal structure. Here, we report the first experimental results for structure in aqueous organic nanodroplets based on small angle neutron scattering by high number density aerosols. For H(2)O-n-butanol droplets, fitting of the diffraction patterns confirms the picture of an aqueous core containing approximately 3 mol% alcohol covered by a shell of densely packed alcohol molecules. |
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