Figure 1.

The fluorescence spectra of AFMFEM-1 and AFMFEM-2 (a): the picture in the upper right corner is the fluorescence spectra of QDs₁ and QDs₂; the hysteresis loops taken at 300 K for AFMFEM-1 and AFMFEM-2 (b); the zeta potential of AFMFEM (c); the TEM micrographs of AFMFEM (d).