Advances in Chemistry / 2014 / Article / Fig 2

Review Article

New Strategy for the Cleaning of Paper Artworks: A Smart Combination of Gels and Biosensors

Figure 2

(a) Cleaning procedure with water immersion: (A) paper fragment immersed in water bath; (B) paper fragment in water; (C) removal of paper fragment from water bath after 1 h; (D) the dirt removed from paper by deionized water; (E) paper sample after water immersion. (b) Cleaning procedure using Gellan gel: (A) paper fragment before treatment with gel; (B) application of gel on paper fragment; (C) removal of gel from paper fragment in one step after 1 h; (D) the dirt removed from the paper by the yellowish color of the gel is easy to see; (E) paper sample after gel treatment.

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