Fig. 18

(a) The tools used in dry cleaning, (b) acid-free erasers, and (c) the application of a consolidation material composed of a 2% concentration loaded with 0.25% of ZnONPs.

(a) The tools used in dry cleaning, (b) acid-free erasers, and (c) the application of a consolidation material composed of a 2% concentration loaded with 0.25% of ZnONPs.