FIGURE 3.

Improvement in skin protection from frictional (shearing) forces quantified by the ratio δ₂ for a range of skin elastic moduli (100‐150 kPa) and application of cyanoacrylate liquid skin protectant (CLSP) coating with thickness of 25‐μm post‐polymerisation. The predicted improvement is highly non‐linear and the extent of protection (ie, decrease in δ₂) rises substantially for thinner (more fragile) skin tissues such as an elderly skin with thickness values lower than ~0.7 mm. Frictional forces acting on such a thin, fragile (aged) skin region treated with CLSP may be alleviated by up to ~30% with respect to an untreated skin region, thereby allowing the treated skin region to more effectively tolerate localised frictional forces and surface shear stresses induced by a contacting medical device or object. The plotted grey range of δ₂ data resulted from calculations of the δ₂ratios for the aforementioned range of skin elastic moduli at each skin thickness level