Poly-L-lactide scaffolds with super pores obtained by freeze-extraction method

J Biomed Mater Res B Appl Biomater. 2020 Nov;108(8):3162-3173. doi: 10.1002/jbm.b.34642. Epub 2020 Jun 5.

Abstract

A nonplanar polylactide scaffold to be used in tissue engineering was obtained by freeze-extraction method. Properties of the scaffold were modified by adding Eudragit® E100. The impact of the modification on morphology, porosity and pore size, mass absorbability, mechanical properties was determined. Scanning electron microscopy (SEM), hydrostatic weighing test, static compression test was used to this end. The chemical composition of the scaffold was defined based on infrared spectroscopy (FTIR) and energy-dispersive X-ray spectroscopy (EDX). Biocompatibility was confirmed by quantitative tests and microscopic observation. The obtained results show that the obtained scaffolds may be applied as a carrier of hydrophilic cellular growth factors for more efficient tissue regeneration.

Keywords: Eudragit® E100; cellular studies; freeze-extraction; poly-L-lactide.

MeSH terms

  • Acrylates
  • Animals
  • Cell Survival / drug effects
  • Cells, Cultured
  • Drug Carriers
  • Freezing
  • Intercellular Signaling Peptides and Proteins / administration & dosage
  • Materials Testing
  • Mice
  • Microscopy, Electron, Scanning
  • Polyesters / chemistry*
  • Polyesters / toxicity
  • Polymers
  • Porosity
  • Regeneration
  • Spectroscopy, Fourier Transform Infrared
  • Tissue Engineering / methods
  • Tissue Scaffolds / chemistry*

Substances

  • Acrylates
  • Drug Carriers
  • Eudragit E100
  • Intercellular Signaling Peptides and Proteins
  • Polyesters
  • Polymers
  • poly(lactide)