The removal of old glue from paper artworks is of paramount importance for the preservation of its integrity during the restoration process. Wet cleaning is one of the traditional methods, although it may cause damages on artworks. In this work, an advantageous alternative method, based on the use of a rigid hydrogel, for a simple and localized removal of starch paste from paper supports is presented. The use of an appropriate hydrogel allows to overcome many of the problems faced by restorers minimizing damages, through a controlled release of water to the artwork, and a simple and not invasive application and removal. At the same time, the specific and targeted enzyme activity leads to a significant reduction in the application time of the cleaning procedure. In this context, experiments were carried out applying Gellan hydrogel carrying α-amylase enzyme on several paper samples soiled with starch paste. To assess the cleaning efficacy of the proposed hydrogel, we have used a multidisciplinary approach, by means of spectroscopic techniques, scanning electron microscopy, chromatographic analysis, and pH investigations.

Mazzuca, C., Micheli, L., Cervelli, E., Basoli, F., Cencetti, C., Coviello, T., et al. (2014). Cleaning of paper artworks: Development of an efficient gel-based material able to remove starch paste. ACS APPLIED MATERIALS & INTERFACES, 6(19), 16519-16528 [10.1021/am504295n].

Cleaning of paper artworks: Development of an efficient gel-based material able to remove starch paste

MAZZUCA, CLAUDIA;MICHELI, LAURA;BASOLI, FRANCESCO;PALLESCHI, ANTONIO
2014

Abstract

The removal of old glue from paper artworks is of paramount importance for the preservation of its integrity during the restoration process. Wet cleaning is one of the traditional methods, although it may cause damages on artworks. In this work, an advantageous alternative method, based on the use of a rigid hydrogel, for a simple and localized removal of starch paste from paper supports is presented. The use of an appropriate hydrogel allows to overcome many of the problems faced by restorers minimizing damages, through a controlled release of water to the artwork, and a simple and not invasive application and removal. At the same time, the specific and targeted enzyme activity leads to a significant reduction in the application time of the cleaning procedure. In this context, experiments were carried out applying Gellan hydrogel carrying α-amylase enzyme on several paper samples soiled with starch paste. To assess the cleaning efficacy of the proposed hydrogel, we have used a multidisciplinary approach, by means of spectroscopic techniques, scanning electron microscopy, chromatographic analysis, and pH investigations.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore CHIM/02 - Chimica Fisica
English
Con Impact Factor ISI
amylase; cultural heritage; gellan; hydrogel; paper artwork; paper restoration
http://pubs.acs.org/doi/abs/10.1021/am504295n
Mazzuca, C., Micheli, L., Cervelli, E., Basoli, F., Cencetti, C., Coviello, T., et al. (2014). Cleaning of paper artworks: Development of an efficient gel-based material able to remove starch paste. ACS APPLIED MATERIALS & INTERFACES, 6(19), 16519-16528 [10.1021/am504295n].
Mazzuca, C; Micheli, L; Cervelli, E; Basoli, F; Cencetti, C; Coviello, T; Iannuccelli, S; Sotgiu, S; Palleschi, A
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/131170
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