Nanomaterials (May 2022)

Cyanine-Doped Nanofiber Mats for Laser Tissue Bonding

  • Fulvio Ratto,
  • Giada Magni,
  • Annalisa Aluigi,
  • Marta Giannelli,
  • Sonia Centi,
  • Paolo Matteini,
  • Werner Oberhauser,
  • Roberto Pini,
  • Francesca Rossi

DOI
https://doi.org/10.3390/nano12091613
Journal volume & issue
Vol. 12, no. 9
p. 1613

Abstract

Read online

In spite of an extensive body of academic initiatives and innovative products, the toolkit of wound dressing has always revolved around a few common concepts such as adhesive patches and stitches and their variants. Our work aims at an alternative solution for an immediate restitutio ad integrum of the mechanical functionality in cutaneous repairs. We describe the fabrication and the application of electrospun mats of bioactive nanofibers all made of biocompatible components such as a natural polysaccharide and a cyanine dye for use as laser-activatable plasters, resembling the ultrastructure of human dermis. In particular, we investigate their morphological features and mechanical moduli under conditions of physiological relevance, and we test their use to bind a frequent benchmark of connective tissue as rabbit tendon and a significant case of clinical relevance as human dermis. Altogether, our results point to the feasibility of a new material for wound dressing combining translational potential, strength close to human dermis, extensibility exceeding 15% and state-of-art adhesive properties.

Keywords