Figure 3
Core-size modulation of the Fe(salen) CSNA by bio-functionalization. (a) Transmission electron microscope (TEM) image of the bovine serum albumin (BSA)-induced CSNA showing small nanoclusters that were endogenously produced inside the CSNA matrix. (i) A low-magnification TEM image of the bovine serum albumin (BSA)-CSNA, (ii) high-resolution transmission electron microscope (HRTEM) image and the corresponding fast Fourier transform (FFT), showing the single nanocrystalline structure of the NC (#1) and the amorphous structure of the polypyrrole (PPy) matrix region (#2), and (b) TEM image of the GA-CSNA showing enlarged nanoparticles. (i, ii) Monodispersed CSNA, (iii) a magnified TEM image of a marked one in (ii), showing typical FFT of an iron-oxide polycrystalline structure (#1) and the amorphous structure of a polypyrrole (PPy) matrix region (#2) and (iv) the well-defined crystalline lattice fringes with 0.26 nm interspacing from the marked square #1.
