The Potential of Polyethylene Terephthalate Glycol as Biomaterial for Bone Tissue Engineering

Research output: Contribution to journalArticlepeer-review

  • External authors:
  • Mohamed Hassan
  • Abdalla Omar
  • Yanhao Hou
  • Ilya Strashnov
  • Paulo Bartolo,


The search for materials with improved mechanical and biological properties is a
major challenge in tissue engineering. This paper investigates, for the first time, the use of Polyethylene Terephthalate Glycol (PETG), a glycol-modified class of Polyethylene Terephthalate (PET), as a potential material for the fabrication of bone scaffolds. PETG scaffolds with a 0/90 lay-dawn pattern and different pore sizes (300, 350 and 450 um) were produced using a filament-based extrusion
additive manufacturing system and mechanically and biologically characterized. The performance of PETG scaffolds with 300 um of pore size was compared with polycaprolactone (PCL). Results show that PETG scaffolds present significantly higher mechanical properties than PCL scaffolds, providing a biomechanical environment that promotes high cell attachment and proliferation.

Bibliographical metadata

Original languageEnglish
Number of pages12
Issue number12
Publication statusPublished - 18 Dec 2020