Fig. 2.

(A) The amount of BSA bound onto the gelatin nanospheres immobilized with antibody by the DSS and NaIO₄ methods. The antibody used for the immobilization is the anti-BSA antibody or its isotype (r-IgG). The antibody is chemically immobilized onto the gelatin nanospheres by the DSS and NaIO₄ methods. *, p < 0.05; significant against the nanospheres with or without the r-IgG immobilized. †, p < 0.05; significant against the nanospheres with the anti-BSA antibody immobilized by the DSS method (B) The amount of antibody on gelatin nanospheres bound to RAW264 cells. The antibody used for the immobilization is the anti-CD11b antibody or its isotype (r-IgG). The antibody is chemically immobilized onto the gelatin nanospheres by the DSS and NaIO₄ methods. *, p < 0.05; significant against other groups.