Engineering electrospun multicomponent polyurethane scaffolding platform comprising grapeseed oil and honey/propolis for bone tissue regeneration

PLoS One. 2018 Oct 29;13(10):e0205699. doi: 10.1371/journal.pone.0205699. eCollection 2018.

Abstract

Essential oils play an important role in reducing the pain and inflammation caused by bone fracture.In this study, a scaffold was electrospun based on polyurethane (PU), grape seed oil, honey and propolis for bone tissue-engineering applications. The fiber diameter of the electrospun PU/grape seed oil scaffold and PU/grape seed oil/honey/propolis scaffold were observed to be reduced compared to the pristine PU control. FTIR analysis revealed the existence of grape seed oil, honey and propolis in PU identified by CH band peak shift and also hydrogen bond formation. The contact angle of PU/grape seed oil scaffold was found to increase owing to hydrophobic nature and the contact angle for the PU/grape seed/honey oil/propolis scaffold were decreased because of hydrophilic nature. Further, the prepared PU/grape seed oil and PU/grape seed oil/honey/propolis scaffold showed enhanced thermal stability and reduction in surface roughness than the control as revealed in thermogravimetric analysis (TGA) and atomic force microscopy (AFM) analysis. Further, the developed nanocomposite scaffold displayed delayed blood clotting time than the pristine PU in the activated prothrombin time (APTT) and partial thromboplastin time (PT) assay. The hemolytic assay and cytocompatibility studies revealed that the electrospun PU/grape seed oil and PU/grape seed oil/honey/propolis scaffold possess non-toxic behaviour to red blood cells (RBC) and human fibroblast cells (HDF) cells indicating better blood compatibility and cell viability rates. Hence, the newly developed electrospun nanofibrous composite scaffold with desirable characteristics might be used as an alternative candidate for bone tissue engineering applications.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biocompatible Materials / chemistry*
  • Biocompatible Materials / toxicity
  • Bone Regeneration*
  • Bone Substitutes / chemistry*
  • Bone Substitutes / toxicity
  • Bone and Bones / physiology*
  • Cell Line
  • Cell Survival
  • Erythrocytes
  • Fibroblasts
  • Grape Seed Extract / chemistry
  • Grape Seed Extract / toxicity
  • Honey
  • Humans
  • Hydrophobic and Hydrophilic Interactions
  • Materials Testing / methods
  • Microscopy, Atomic Force
  • Microscopy, Electron, Scanning
  • Nanocomposites / chemistry
  • Nanocomposites / toxicity
  • Nanocomposites / ultrastructure
  • Partial Thromboplastin Time
  • Particle Size
  • Polyurethanes / chemistry
  • Polyurethanes / toxicity
  • Propolis / chemistry
  • Propolis / toxicity
  • Spectroscopy, Fourier Transform Infrared
  • Tissue Engineering / methods*
  • Toxicity Tests / methods

Substances

  • Biocompatible Materials
  • Bone Substitutes
  • Grape Seed Extract
  • Polyurethanes
  • Propolis

Grants and funding

This work was supported by the Ministry of Higher Education Malaysia with the Grant no. Q.J130000.2545.17H00 and Q.J130000.2545.20H00.