Journal of Polymers and the Environment

, Volume 26, Issue 8, pp 3226–3236 | Cite as

Effect of Gamma Radiation on the Properties of Crosslinked Chitosan Nano-composite Film

  • A. M. Abdel GhaffarEmail author
  • H. E. Ali
  • Sh. M. Nasef
  • Heba A. El-Bialy
Original Paper


Chitosan nano-composite film crosslinked by citric acid and with glycerol as plasticizer and MgO as antibacterial agent was prepared by casting method. MgO nanoparticles were synthesized via calcination method in furnace at 500 °C for 4 h and characterized by X-ray diffraction and transmission electron microscope. The chitosan nano-composite film with composition chitosan/citric/glycerol/magnesium oxide (1 wt%:1 wt%:75 vol%:10 wt%) has high mechanical properties than other films. The effects of different irradiation doses on the mechanical, thermal and antibacterial activity were investigated. The tensile strength enhanced by increasing irradiation dose up to 10 kGy and the elongation negligible changed as irradiation dose increased. The thermal stability slightly increased up to dose 2.5 kGy then decreased with dose increment. The antimicrobial activity film was studied against white mulberry-borne bacterial pathogens either Gram positive or Gram negative bacteria and has positive impact of gamma irradiation on the antimicrobial activity. The use of the selected chitosan nano-composite film which irradiated by dose of 2.5 kGy and has magnesium oxide of average particle size 54.3 nm as new packaging materials found to improve storage quality and shelf-life of mulberry fruit.


Radiation Chitosan nano-composite film Antibacterial activity Environmental packaging 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • A. M. Abdel Ghaffar
    • 1
    Email author
  • H. E. Ali
    • 2
  • Sh. M. Nasef
    • 1
  • Heba A. El-Bialy
    • 3
  1. 1.Industrial Irradiation Division, Radiation Research of Polymer Chemistry DepartmentNational Center for Radiation Research and Technology, Atomic Energy AuthorityCairoEgypt
  2. 2.Radiation Research Division, Radiation Chemistry DepartmentNational Center for Radiation Research and Technology, Atomic Energy AuthorityCairoEgypt
  3. 3.Biotechnology Division, Radiation Microbiology DepartmentNational Center for Radiation Research and Technology, Atomic Energy AuthorityCairoEgypt

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