Preparation and Modeling of Three-Layered PCL/PLGA/PCL Fibrous Scaffolds for Prolonged Drug Release

Published in Scientific Reports, vol. 10 (2020) · Nature Portfolio · Open access, CC BY
DOI: 10.1038/s41598-020-68117-9

Summary

A three-layered scaffold is built by emulsion and sequential electrospinning, with a PLGA fibre layer sandwiched between two polycaprolactone layers - a structure designed so the outer layers slow the escape of a drug held in the middle. The distinctive contribution is the pairing of experiment with a computational model: measured release rates are compared against simulation, so the layered architecture can be tuned by calculation rather than by repeated trial, a considerable saving when each variant takes days to test.

Authors & Affiliations

  • Miljan Milosevic
    Bioengineering Research and Development Center (BioIRC), Kragujevac, Serbia
  • Dusica B. Stojanovic
    Faculty of Technology and Metallurgy, University of Belgrade, Serbia
  • Vladimir Simic
    Bioengineering Research and Development Center (BioIRC), Kragujevac, Serbia
  • Milos Grkovic
    Faculty of Technology and Metallurgy, University of Belgrade, Serbia
  • Milos Bjelovic
    Department for Minimally Invasive Upper Digestive Surgery, Clinical Centre of Serbia
  • Petar S. Uskokovic
    Faculty of Technology and Metallurgy, University of Belgrade, Serbia

Linari Electrospinning Systems

Linari Engineering system with syringe pump
The scaffolds were prepared on a Linari Engineering system with a syringe pump, spinning each layer in sequence onto the previous one. Building a multilayer structure in successive runs requires the process to be reproducible from one run to the next - see our range of systems.

Topics

Prolonged Drug Release Multilayer Scaffolds Computational Modelling Emulsion Electrospinning

Materials

Polycaprolactone PLGA
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