Figure 2.

Transmission electron microscopy images of pure PLGA fibers (A) and PLGA fibers with diamond nanoparticles (B–D). (B) Network of PLGA with diamond nanoparticles, showing variations in fiber thickness and size of the material clusters. (C) Individual fibers with clusters of diamond nanoparticles. (D) Diamond nanoparticles relatively homogeneously distributed in a PLGA fiber.

Notes: The layers with elliptical openings (A–C) are amorphous carbon membranes of the grid used to fix the sample. A Philips CM120 transmission electron microscope, LaB6 cathode operated at 120 kV, and SIS Veleta CCD camera, were used. Scale bar 1 μm (A), 2 μm (B), and 200 nm (C and D).

Abbreviation: PLGA, copolymer of L-lactide and glycolide.