By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Enzymes and Coenzymes have been published. According to news reporting from Caparica, Portugal, by NewsRx journalists, research stated, "This work establishes a multiscale and multitechnique nondestructive approach as valid methodology for monitoring surface properties and evaluating the effectiveness of enzymatic removal of varnishes from paintings/polychrome artefacts. Mock-up samples (documented reconstructions of oil, tempera, and gilded layers on canvas and wooden supports) were covered with different proteinaceous varnishes (egg white, animal and fish glue, casein) and then characterized before and after the removal of these coatings with enzyme-based solutions."
The news correspondents obtained a quote from the research from the University of Lisbon, "The varnish was cleaned in several steps (two dry swabs and two wet swabs) with a clearance step for removing the residues from proteinaceous varnish or from enzyme solution. Microscopy [stereomicroscopy (SM), optical microscopy (OM), atomic force microscopy (AFM), and scanning electron microscopy (SEM)] and colorimetric (CIE L*a*b* system) techniques were used for characterization of the reconstruction surfaces at different scales (macro-scale by SM and OM; micro-scale by SEM and nano-scale by AFM). These techniques were also used to monitor the cleaning treatment. Although results presented in this work were obtained for the specific treatment of enzyme removal, the methodology could be extended to other types of materials and cleaning."
According to the news reporters, the research concluded: "Further experiments on real works of art are needed for a complete validation of the methodology."
For more information on this research see: Nondestructive characterization and enzyme cleaning of painted surfaces: assessment from the macro to nano level. Microscopy and Microanalysis, 2013;19(6):1632-44. (Cambridge University Press - www.cambridge.org; Microscopy and Microanalysis - journals.cambridge.org/action/displayJournal?jid=MAM)
Our news journalists report that additional information may be obtained by contacting C. Pereira, Dept. of Conservation and Restoration (DCR), Faculty of Sciences and Technology (FCT), Nova University of Lisbon (UNL), Campus Monte de Caparica, 2829-516 Caparica, Portugal. Additional authors for this research include T. Busani, L.C. Branco, I. Joosten and I.C Sandu (see also Enzymes and Coenzymes).
Keywords for this news article include: Europe, Caparica, Portugal, Treatment, Enzymes and Coenzymes.
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