Thermal and morphological characterization of 3D-printed PLA scaffolds for biomedical applications

González, Alejandro González; Santana, M Rivas; Robledo, Patricia del Carmen Zambrano; Quiza, Ramón

doi:10.1557/s43580-022-00454-5

MRS Advances

2023

DOI: 10.1557/s43580-022-00454-5

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Thermal and morphological characterization of 3D-printed PLA scaffolds for biomedical applications

Alejandro González González

M Rivas Santana

Patricia del Carmen Zambrano Robledo

et al.

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Cited by 4 publications

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A promising pullulan/PLA composite: Influence of pullulan in the scaffolds morphology constructed by 3D printing

Silva Neto,

Maia,

Zanata

et al. 2024

J of Applied Polymer Sci

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Manufacturing three‐dimensional scaffolds with significant rough and porous structures is advantageous in tissue regeneration approaches influencing cell growth. Thus, this work aims to study the effect of using different Pullulan contents (PULL) in the poly(lactic) acid (PLA) matrix for 3D printing scaffolds. PLA composites filler with PULL (5 and 10% wt.) were prepared in a thermokinetic mixer, extruded in a machine, and then used to print samples using a fused deposition modeling (FDM) 3D printer. The prepared filaments and scaffolds were characterized using Field emission scanning electron microscopy (FESEM), Fourier‐transform infrared spectroscopy (FTIR), thermogravimetry analyses (TGA), water contact angle (WCA), differential scanning calorimetry (DSC), and hardness techniques. The insertion of PULL into the PLA matrix influenced the increase in diameter and roughness, and density reduction of the composite filaments compared to pristine PLA. Furthermore, the filler promoted an increase in thermal stability, shore hardness, and the development of promising morphological characteristics for cell growth because the walls of the scaffolds are more robust and have more regular‐sized holes. The scaffold fabrication reinforced with 10% PULL presented high surface roughness (up to 1022% if compared with pristine PLA), and open pores can be confirmed successfully compared to pristine PLA. Thus, the use of PULL as a filler in a PLA matrix guarantees the development of composite scaffolds with improved morphological and hardness properties, which could allow the possibility of future research into the application of the proposed material (10% wt. PULL) as an ecologically correct and biocompatible alternative for application in tissue engineering.

show abstract

A promising pullulan/PLA composite: Influence of pullulan in the scaffolds morphology constructed by 3D printing

Silva Neto,

Maia,

Zanata

et al. 2024

J of Applied Polymer Sci

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show abstract

Functionalization of 3D printed poly(lactic acid)/graphene oxide/β-tricalcium phosphate (PLA/GO/TCP) scaffolds for bone tissue regeneration application

Sánchez-Cepeda,

Pazos,

Leonardo

et al. 2024

RSC Adv.

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Mechanical and thermal evaluation of PLA/PLA-g-MA/MCC composites via reactive extrusion

Zapata,

Ramírez,

Pérez

et al. 2023

MRS Advances

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Thermal and morphological characterization of 3D-printed PLA scaffolds for biomedical applications

Cited by 4 publications

References 23 publications

A promising pullulan/PLA composite: Influence of pullulan in the scaffolds morphology constructed by 3D printing

A promising pullulan/PLA composite: Influence of pullulan in the scaffolds morphology constructed by 3D printing

Functionalization of 3D printed poly(lactic acid)/graphene oxide/β-tricalcium phosphate (PLA/GO/TCP) scaffolds for bone tissue regeneration application

Mechanical and thermal evaluation of PLA/PLA-g-MA/MCC composites via reactive extrusion

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