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Influence of geometry on cell proliferation of PLA and alumina scaffolds constructed by additive manufacturing

  • Jhon Alexander Ramírez (a1), Valentina Ospina (a2), Angie A. Rozo (a2), Maria I. Viana (a2), Sebastian Ocampo (a1), Sebastian Restrepo (a1), Neil A. Vásquez (a2), Carlos Paucar (a1) and Claudia García (a1)...

Abstract

Scaffolds based on two different geometries were constructed by additive manufacturing: one based on a triply periodic minimal surface, the Schwarz D surface, and the other based on a rectangular geometry with orthogonal through-holes. For construction of the scaffolds, two different materials were used: polylactic acid (PLA) in filament form and alumina in printable paste form. The structure of the resulting scaffolds was characterized via X-ray diffraction and scanning electron microscopy, and cell proliferation was assessed for each geometry and material, using fluorescence microscopy and DNA quantification via NanoDrop. Additive manufacturing allowed us to obtain scaffolds with the assessed materials while guaranteeing the interconnectivity of the pores in each one. The curved surfaces constructed with PLA were more favorable for cell attachment and proliferation of the CHO-K1 cell line.

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a)Address all correspondence to this author. e-mail: cpgarcia@unal.edu.co

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Influence of geometry on cell proliferation of PLA and alumina scaffolds constructed by additive manufacturing

  • Jhon Alexander Ramírez (a1), Valentina Ospina (a2), Angie A. Rozo (a2), Maria I. Viana (a2), Sebastian Ocampo (a1), Sebastian Restrepo (a1), Neil A. Vásquez (a2), Carlos Paucar (a1) and Claudia García (a1)...

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