Fig. 6

Cytotoxicity and antibacterial effect of CDs. Cytotoxicity of L929 cells treated with (A) starting materials of CDs, (B) CD_lys at the concentration of 18 mg/mL, (C) CD_1/4, and physical mixture with the same ratio of oxalic acid to lysine and (D) CD_1/4+Ser, and physical mixture with the same ratio of oxalic acid to serine; (E) growth curve of E. coli. treated with CD_1/4; (F) growth curve of S. aureus. treated with CD_1/4; (G) TEM image of E. coli. treated with 3 mg/mL CD_1/4 and (H) TEM image of E. coli. treated with 18 mg/mL CD_1/4