Abstract：
:Skin burns due to accidental exposure to hot steam have often been reported to be more severe than the ones occurring from dry heat. While skin burns due to flames or radiant heat have been thoroughly characterized, the mechanisms leading to steam burns are not well understood and a conundrum still exists: can second degree burns occur without destruction of the epidermis, i.e. even before first degree burns are detected? Skin permeability is dependent both on temperature and on the kinetic energy of incoming water molecules. To investigate the mechanism underlying the injuries related to steam exposure, we used porcine skin as an ex vivo model. This model was exposed to either steam or dry heat before measuring the skin hydration via confocal Raman microspectroscopy. The results show that during the first minute of exposure to steam, the water content in both the epidermis and dermis increases. By analyzing different mechanisms of steam diffusion through the multiple skin layers, as well as the moisture-assisted bio-heat transfer, we provide a novel model explaining why steam burns can be more severe, and why steam can penetrate deeper and much faster than an equivalent dry heat.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Zhai L,Adlhart C,Spano F,Innocenti Malini R,Piątek AK,Li J,Rossi RMdoi
10.1038/s41598-018-24647-xsubject
Has Abstractpub_date
2018-05-02 00:00:00pages
6946issue
1issn
2045-2322pii
10.1038/s41598-018-24647-xjournal_volume
8pub_type
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