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. Author manuscript; available in PMC: 2021 Aug 1.
Published in final edited form as: Adv Healthc Mater. 2020 Jun 11;9(15):e2000156. doi: 10.1002/adhm.202000156

Figure 3. Comparison of bottom-up and top-down methods in DLP-based printing.

Figure 3.

A) Schematics of the i) bottom-up and ii) top-down systems. Reproduced with permission.[56] B) Comparison of the two constructs of the same pattern printed by i, iii) bottom-up and ii, iv) top-down systems. C) Crossed layers of parallels structures printed by i, iii) bottom-up and ii, iv) top-down systems. D) 3D disks printed by i) bottom-up and ii) top-down systems. Reproduced with permission.[57] E) Pulling-up force increases with the increased velocity in the bottom-up method. Reproduced with permission.[58] F) Changes of light power across the different wavelengths of the bottom-up and top-down methods. Reproduced with permission.[57]