Article,

"Effective" negative surface tension: A property of coated nanoaerosols relevant to the atmosphere

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Journal of Physical Chemistry A, 111 (25): 5459--5464 (June 2007)180VV Times Cited:0 Cited References Count:22.

Abstract

Atmospheric aerosols play a very important role in atmospheric processes and have a major influence on the global climate. In this paper, we report results of a molecular dynamics study on the unique properties of organic-coated water droplets. In particular, we find that, for particles preferring an inverted micelle structure, the lower chain-chain interaction, with increasing radial distance from the water-organic interface, results in a negative internal radial pressure profile for the organic layer. As a result, a coated particle behaves as though the surface tension is "negative" and implies that such a particle will inherently have an inverse Kelvin vapor pressure effect, resulting in increased water condensation.

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