Fig. 3. AFM-IR measurements on fixed fibroblasts following treatment with Triton X-100. (a) Height AFM image. (b) Deflection AFM image. (c) AFM-IR map with 1650 cm⁻¹ excitation. (d) AFM-IR map with 1090 cm⁻¹ excitation. (e) AFM-IR map with 1160 cm⁻¹ excitation. (f) AFM-IR map with 1240 cm⁻¹ excitation. (g) AFM-IR map with 1740 cm⁻¹ excitation. (h) AFM-IR map with 2920 cm⁻¹ excitation. (i) AFM-IR map with 3010 cm⁻¹ excitation.