Figure 14. SEM images of poly (ethylene glycol) (PEG)-diacrylate (PEGDA)-basedmicro/nanostructures fabricated using optically-projected spot patterns with different exposure times. The heights in (a–f) measured by AFM were 233 nm, 455 nm, 687 nm, 950 nm, 1.34 μm, and 1.62 μm, respectively (reproduced from Ref. [80]).
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