Figure 5

SEM pictures of (A) CchiBs at amplification of 500 µm, (B) highly magnified CchiBs, (C) MchiBs and (D) MchiBs after dye biosorption at amplification of 1 µm. EDX spectrum of MchiBs. S: Surface of MChiBs; d: Dye particles adsorbed on the surface of nanoparticles.