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dc.contributor.authorÁlvarez de Buergo, Mónica-
dc.contributor.authorGómez-Heras, Miguel-
dc.contributor.authorFort González, Rafael-
dc.contributor.authorAscaso, Carmen-
dc.contributor.authorRíos, Asunción de los-
dc.contributor.authorPérez-Ortega, Sergio-
dc.contributor.authorSperanza, Mariela-
dc.contributor.authorWierzchos, Jacek-
dc.contributor.authorSanz, Mikel-
dc.contributor.authorOujja, M.-
dc.contributor.authorCastillejo, Marta-
dc.date.accessioned2014-03-20T09:38:15Z-
dc.date.available2014-03-20T09:38:15Z-
dc.date.issued2013-
dc.identifierdoi: 10.1201/b15577-41-
dc.identifierisbn: 978-1-138-00009-4-
dc.identifier.citationScience and Technology for the Conservation of Cultural Heritage: 173–178-
dc.identifier.urihttp://hdl.handle.net/10261/93953-
dc.description.abstractThe preliminary results of the laser assessment for biofilms removal on rock surfaces are shown. The procedure consisted of laser irradiation (Nd:YAG, 1064nm, 10 ns, 200 mJ) on a dolostone colonized by microorganisms (mainly cyanobacteria) and lichens. Samples were taken to assess the effectiveness of laser treatment on both the lichens thalli and microbial communities (SEM-BSE and TEM), and also on the stone substrate (SEM-SE+EDS). The re-sults show that lichen thalli were eliminated only partially. The laser fluence applied was not enough to efficiently eliminate and/or damage the majority of lichen thalli, which is in accor-dance with previous laboratory results, where it was demonstrated that a higher fluence is nec-essary to clean and make inactive lichen symbionts. No damage was found in the dolomite crys-tals after laser radiation. Roughness and color were recorded before and after laser treatment. Continuous monitoring of the thermal processes during laser irradiation showed that thermal gradient is extremely high-
dc.description.sponsorshipGEOMATERIALES programme (Ref. S2009-MAT1629), to CONSOLIDER programme (CSD2007-00058) and to Fabio dal Monte (CTS) for providing the laser equipment and performing the onsite experiments-
dc.publisherCRC Press-
dc.relation.isversionofPreprint-
dc.rightsopenAccess-
dc.titleAssessment of laser treatment on dolostones colonized by microorganisms and lichens-
dc.typepreprint-
dc.identifier.doi10.1201/b15577-41-
dc.date.updated2014-03-20T09:38:15Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
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