Electrospun Alginate Fibers: Mixing of Two Different Poly(ethylene oxide) Grades

Published in Nanomaterials, vol. 8(12), 971 (2018) · MDPI · Open access, CC BY
DOI: 10.3390/nano8120971

Summary

Alginate cannot be electrospun on its own and needs a spinnable partner, usually poly(ethylene oxide) - but the molecular weight of that partner is rarely treated as a design variable. This study blends alginate with two PEO grades of different molecular weight, high and low, in combinations chosen so that each mixture can be compared on equal terms, and examines how the choice affects fibre morphology and mechanical properties. The finding is practical: the adjuvant polymer is not neutral, and selecting its grade is part of designing the fibre.

Authors & Affiliations

  • Barbara Vigani
    Department of Drug Sciences, University of Pavia, Italy
  • Silvia Rossi Corresponding
    Department of Drug Sciences, University of Pavia, Italy
  • Gloria Milanesi
    Department of Drug Sciences, University of Pavia, Italy
  • Maria Cristina Bonferoni
    Department of Drug Sciences, University of Pavia, Italy
  • Giuseppina Sandri
    Department of Drug Sciences, University of Pavia, Italy
  • Giovanna Bruni
    Department of Chemistry, University of Pavia, Italy
  • Franca Ferrari
    Department of Drug Sciences, University of Pavia, Italy

Linari Electrospinning Systems

Electrospinning Starter Kit (STKIT-40)
The fibres were produced on a Linari Engineering system (Grosseto, Italy) with a high voltage power supply, a syringe pump and a collector plate - the static-collector configuration of our Starter Kit, control unit HVG-CONT-LCD.

Topics

Electrospinnability Process Adjuvants Fiber Morphology Mechanical Properties

Materials

Alginate Poly(ethylene oxide)
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