Figure 1

(A) Transmission electron microscopy (TEM) image (left) and high-angle annular dark-field scanning transmission electron microscopic (HAADF-STEM) image (right) (scale bar: 100 nm); (B) Hydrodynamic diameter distribution of PET NPs determined by dynamic light scattering; (C) ATR-FTIR spectra of water, PET NPs suspension and PET film.