Fabrication and Characterization of Thermoresponsive Polystyrene Nanofibrous Mats for Cultured Cell Recovery

Figure 5

Three-dimensional tapping mode AFM topographical images of each surface: (a) ungrafted polystyrene mat, (b) PIPAAm-grafted polystyrene mat, (c) ungrafted polystyrene film, and (d) PIPAAm-grafted polystyrene dish.

(a)

(b)

(c)

(d)