Pectin-cellulose hydrogel, silk fibroin and magnesium hydroxide nanoparticles hybrid nanocomposites for biomedical applications

Int J Biol Macromol. 2021 Dec 1:192:7-15. doi: 10.1016/j.ijbiomac.2021.09.099. Epub 2021 Sep 24.

Abstract

Natural polymers are at the center of materials development for biomedical and biotechnological applications based on their biocompatibility, low-toxicity and biodegradability. In this study, a novel nanobiocomposite based on cross-linked pectin-cellulose hydrogel, silk fibroin, and Mg(OH)2 nanoparticles was designed and synthesized. After extensive physical-chemical characterization, the biological response of pectin-cellulose/silk fibroin/Mg(OH)2 nanobiocomposite scaffolds was evaluated by cell viability, red blood cells hemolytic and anti-biofilm assays. After 3 days and 7 days, the cell viability of this nanobiocomposite scaffold was 65.5% and 60.5% respectively. The hemolytic effect was below 20%. Furthermore, the presence of silk fibroin and Mg(OH)2 nanoparticles allowed to enhance the anti-biofilm activity, inhibiting the P. aeruginosa biofilm formation.

Keywords: Biocompatibility; Mg(OH)(2) nanoparticles; Nanobiocomposite; Pectin-cellulose hydrogel; Silk fibroin.

MeSH terms

  • Anti-Infective Agents / chemistry
  • Anti-Infective Agents / pharmacology
  • Biocompatible Materials / chemistry*
  • Biofilms / drug effects
  • Cellulose / chemistry*
  • Fibroins / chemistry*
  • Hydrogels / chemistry*
  • Magnesium Hydroxide / chemistry*
  • Nanocomposites / chemistry
  • Nanoparticles / chemistry*
  • Pectins / chemistry*
  • Polymers
  • Spectrum Analysis

Substances

  • Anti-Infective Agents
  • Biocompatible Materials
  • Hydrogels
  • Polymers
  • Pectins
  • Cellulose
  • Fibroins
  • Magnesium Hydroxide