Detail publikace

Properties of scaffolds prepared by fused deposition modeling of poly(hydroxyalkanoates)

Originální název

Properties of scaffolds prepared by fused deposition modeling of poly(hydroxyalkanoates)

Anglický název

Properties of scaffolds prepared by fused deposition modeling of poly(hydroxyalkanoates)

Jazyk

en

Originální abstrakt

Poly(hydroxyalkanoates) are biodegradable and biocompatible polymers suitable for tissue engineering. Fused depositon modeling (FDM) belongs to modern rapid prototyping techniques for the fabrication of scaffolds. In this work, poly(3-hydroxybutyrate (PHB), poly(3-hydroxzbutyrate-co-3-hydroxyvalerate) (PHBV) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate (PHBH) were tested for FDM. Thermal and rheological properties of industrial PHAs were compared with poly(lactic acid) (PLA), which is a biodegradable polymer commonly used for FDM. The massive decrease in viscosity and loss of molecular weight of PHB and PHBV precluded their use for FDM. On the other hand, the thermal stability of PHBH was comparable to that of PLA. PHBH scaffolds prepared by FDM exhibited excellent mechanical properties, no cytotoxicity, and large proliferation of mouse embryonic fibroblast cells within 96 h. The hydrolytic degradation of PHBH and PLA scaffolds tested in synthetic gastric juice for 52 days confirmed a faster degradation of PHBH than PLA. The decrease in molecular weight confirmed the first-order kinetics with a slightly higher (0.0169 day-1) degradation rate constant for pHBH as compared to the value (0.0107 day-1) obtainined for PLA. These results indicate that PHBH could be used to produce scaffolds by FDM with application in tissue engineering.

Anglický abstrakt

Poly(hydroxyalkanoates) are biodegradable and biocompatible polymers suitable for tissue engineering. Fused depositon modeling (FDM) belongs to modern rapid prototyping techniques for the fabrication of scaffolds. In this work, poly(3-hydroxybutyrate (PHB), poly(3-hydroxzbutyrate-co-3-hydroxyvalerate) (PHBV) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate (PHBH) were tested for FDM. Thermal and rheological properties of industrial PHAs were compared with poly(lactic acid) (PLA), which is a biodegradable polymer commonly used for FDM. The massive decrease in viscosity and loss of molecular weight of PHB and PHBV precluded their use for FDM. On the other hand, the thermal stability of PHBH was comparable to that of PLA. PHBH scaffolds prepared by FDM exhibited excellent mechanical properties, no cytotoxicity, and large proliferation of mouse embryonic fibroblast cells within 96 h. The hydrolytic degradation of PHBH and PLA scaffolds tested in synthetic gastric juice for 52 days confirmed a faster degradation of PHBH than PLA. The decrease in molecular weight confirmed the first-order kinetics with a slightly higher (0.0169 day-1) degradation rate constant for pHBH as compared to the value (0.0107 day-1) obtainined for PLA. These results indicate that PHBH could be used to produce scaffolds by FDM with application in tissue engineering.

BibTex


@article{BUT164644,
  author="Adriána {Kovalčík} and Leire {Sangroniz} and Michal {Kalina} and Katerina {Skopalova} and Petr {Humpolíček} and Mária {Omastová} and Norbert {Mundigler} and Alejandro J. {Müller}",
  title="Properties of scaffolds prepared by fused deposition modeling of poly(hydroxyalkanoates)",
  annote="Poly(hydroxyalkanoates) are biodegradable and biocompatible polymers suitable for tissue engineering. Fused depositon modeling (FDM) belongs to modern rapid prototyping techniques for the fabrication of scaffolds. In this work, poly(3-hydroxybutyrate (PHB), poly(3-hydroxzbutyrate-co-3-hydroxyvalerate) (PHBV) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate (PHBH) were tested for FDM. Thermal and rheological properties of industrial PHAs were compared with poly(lactic acid) (PLA), which is a biodegradable polymer commonly used for FDM. The massive decrease in viscosity and loss of molecular weight of PHB and PHBV precluded their use for FDM. On the other hand, the thermal stability of PHBH was comparable to that of PLA. PHBH scaffolds prepared by FDM exhibited excellent mechanical properties, no cytotoxicity, and large proliferation of mouse embryonic fibroblast cells within 96 h. The hydrolytic degradation of PHBH and PLA scaffolds tested in synthetic gastric juice for 52 days confirmed a faster degradation of PHBH than PLA. The decrease in molecular weight confirmed the first-order kinetics with a slightly higher (0.0169 day-1) degradation rate constant for pHBH as compared to the  value (0.0107 day-1) obtainined for PLA. These results indicate that PHBH could be used to produce scaffolds by FDM with application in tissue engineering.",
  address="Elsevier",
  chapter="164644",
  doi="10.1016/j.ijbiomac.2020.06.022",
  howpublished="online",
  institution="Elsevier",
  number="1",
  volume="161",
  year="2020",
  month="october",
  pages="364--376",
  publisher="Elsevier",
  type="journal article in Scopus"
}