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Fig. 3 | Heritage Science

Fig. 3

From: Innovative methods for the removal, and occasionally care, of pressure sensitive adhesive tapes from contemporary drawings

Fig. 3

pHEMA/PVP-EAPC hydrogel interactions with FPP, MT and OT PST adhesives viewed with confocal microscopy. EAPC is labeled green with Rhodamine 110 (Rh110), while the adhesive layers are labeled red with RhBITC. a FPP adhesive after 5 min interaction; b after 10 min; c after 20 min; due to the opacity of FPP backing, the hydrogel is not visible. d MT after 20 min of interaction; due to the transparency of the PST, both the initially unlabeled backing and the hydrogel are visible. e 2D horizontal section of MT adhesive after 20 min of interaction with EAPC: the red and green emissions, and the transmission (grayscale), are separately displayed in the small panels. f 3D reconstruction and g 2D vertical section of OT after 20 min of interaction. Due to the transparency of the PST, both the unlabeled backing and the hydrogel are visible. (Scale bars, 50 μm). Image readapted from Bonelli et al. Restoration of paper artworks with microemulsions confined in hydrogels for safe and efficient removal of adhesive tapes. PNAS. 2018 Jun;115(23):5932–5937

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