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Heparin binding chitosan derivatives for production of pro-angiogenic hydrogels for promoting tissue healing

Research output: Contribution to journalReview articlepeer-review

Published
  • Muhammad Yar
  • Sohail Shahzad
  • Lubna Shahzadi
  • Sohail Anjum Shahzad
  • Nasir Mahmood
  • Aqif Anwar Chaudhry
  • Ihtesham Ur Rehman
  • Sheila MacNeil
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<mark>Journal publication date</mark>1/05/2017
<mark>Journal</mark>Materials Science and Engineering: C
Volume74
Number of pages10
Pages (from-to)347-356
Publication StatusPublished
Early online date7/12/16
<mark>Original language</mark>English

Abstract

Our aim was to develop a biocompatible hydrogel that could be soaked in heparin and placed on wound beds to improve the vasculature of poorly vascularized wound beds. In the current study, a methodology was developed for the synthesis of a new chitosan derivative (CSD-1). Hydrogels were synthesized by blending CSD-1 for either 4 or 24 h with polyvinyl alcohol (PVA). The physical/chemical interactions and the presence of specific functional groups were confirmed by Fourier transform infrared (FT-IR) spectroscopy and proton nuclear magnetic resonance (1H NMR). The porous nature of the hydrogels was confirmed by scanning electron microscopy (SEM). Thermal gravimetric analysis (TGA) showed that these hydrogels have good thermal stability which was slightly increased as the blending time was increased. Hydrogels produced with 24 h of blending supported cell attachment more and could be loaded with heparin to induce new blood vessel formation in a chick chorionic allantoic membrane assay.