Research / 2021 / Article / Fig 1

Research Article

Robust Carbonated Structural Color Barcodes with Ultralow Ontology Fluorescence as Biomimic Culture Platform

Figure 1

(a) Schematic diagram of the fabrication of C@SiO2 PC beads. (b) TEM image of the prepared PDA@SiO2 particles with 252 nm particle sizes. The insert scale bar is 300 nm. (c) Optical microscope photograph of C@SiO2 PC beads. The insert scale bar is 300 μm. (d) FESEM image of the appearance (i) and surface (ii) of C@SiO2 beads. The insert scale bar is 100 μm for insert image, 1 μm for (d).