Figure 3
Structure of the keratin sample imaged with scanning electron microscopy; (a) keratin monomer, (b) keratin aggregate, (c)–(f) keratin aggregates after the FEL irradiation at several wavelengths: (c) 6.06 µm, (d) 6.51 µm, (e) 8.06 µm and (f) 5.60 µm. Scale bar: 200 nm. |