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Edith Joseph, Anaële Simon, Rocco Mazzeo, Daniel Job and Marie Wörle Spectroscopic characterization of an innovative biological treatment for corroded metal artefacts Journal of Raman Spectroscopy 43

Version of Record online: 17 OCT 2012 | DOI: 10.1002/jrs.4164

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Biological treatments are being evaluated for the preservation of metal artefacts. The capacity of a fungal strain, Beauveria bassiana, to precipitate copper oxalates is exploited for the stabilization of soluble patinas (copper hydroxysulfates) or the transformation of active corrosion products (copper hydroxychlorides). Raman mapping is used for evaluating the effective formation of the protective layer of copper oxalates on bronze coupons.

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