Figure 9.

Representative time-dependent phase contrast images of HDFs cultures on sterilized substrates and photographs of resulting cell sheets after thermally triggered detachment from thermoresponsive coatings (n ≥ 3). (a) TCPS controls (top, no detachment) and pEHPA-b-BP brush-coated PS substrates after FO (middle, t_max = 90 min) and gamma (bottom, t_max = 16 h) sterilization with a seeding density of 104 × 10⁵ cells cm^–2. (b) TCPS controls (top, no detachment) and FO-sterilized PGE-b-OBP (middle, t_max = 180 min) and PGE-b-ACBP (bottom, t_max = 180 min) brush-coated substrates with a seeding density of 160 × 10⁵ cells cm^–2.