Fig. 2

TEM images of a bare HSA/CS; b PSS-coated GNRs@HSA; c PSS/DOXO-coated GNRs@HSA; d PSS-coated GNRs@HSA/CS; and e, f PSS/DOXO-coated GNRs@HSA/CS NPs. SEM images of g HSA/CS and h PSS/DOXO-coated GNRs@HSA/CS NPs (inset shows PSS/DOXO-coated GNRs@HSA NPs). i Frequency distribution of GNRs inside HSA/CS NPs (200 protein particles were analyzed). The Gaussian fit of the distribution is also shown (red line)