3D Nanoprinting Technologies for Tissue Engineering Applications

Figure 5

(a) Schematic of laser ablation. Polymer is grown from surface-bound ATRP initiator and ablated by a 100 fs, 400 nm laser pulse. (b) QCM-D measurement of polymer thickness. A measurement result indicates linear growth of the living radical polymerization, ensuring the smooth, uniform films necessary for consistent laser ablation. (c) AFM image of 250 nm dot pattern in 20 nm film (scale bar is 1 μm) (figures were reproduced from [32] with permission of ACS Publications).

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