Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Evaluation of the Antibacterial and Physical Properties of Paper Coated with Chitosan-Ag Nanocomposite Prepared by Green Synthesis

키토산-은나노 녹색합성 복합물질 적용 코팅지의 항균성 및 물리적 특성 평가

  • Kyung, Gyusun (Department of Packaging, College of Science and Technology, Yonsei University) ;
  • Yang, Heetae (Department of Packaging, College of Science and Technology, Yonsei University) ;
  • Lee, Woosuk (Department of Packaging, College of Science and Technology, Yonsei University) ;
  • Park, Jimyoung (Department of Packaging, College of Science and Technology, Yonsei University) ;
  • Ko, Seonghyuk (Department of Packaging, College of Science and Technology, Yonsei University)
  • 경규선 (연세대학교 과학기술대학 패키징학과) ;
  • 양희태 (연세대학교 과학기술대학 패키징학과) ;
  • 이우석 (연세대학교 과학기술대학 패키징학과) ;
  • 박지명 (연세대학교 과학기술대학 패키징학과) ;
  • 고성혁 (연세대학교 과학기술대학 패키징학과)
  • Received : 2014.08.07
  • Accepted : 2014.08.16
  • Published : 2014.08.30
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Abstract

We studied the green synthesis and antibacterial activity of paper coated with chitosan-silver (Ag) green nanocomposites for packaging applications. Green synthesis of Ag nanoparticles (AgNPs) was achieved by a chemical reaction involving a mixture of chitosan-silver nitrate ($AgNO_3$) in an autoclave at 15 psi, $121^{\circ}C$, for 30 min. AgNPs and their formation in chitosan was confirmed by UV-Vis spectroscopy, transmission electron microscopy (TEM) and dynamic light scattering (DLS). As-prepared chitosan-AgNPs composite materials were coated on manila paper using Meyer rod. Surface morphology and Ag contents in coating layer were characterized by field emission scanning electron microscopy (FESEM) and energy dispersive spectroscopy (EDS). The mechanical properties such as tensile strength and elongation were significantly affected by coating with chitosan-AgNPs. The antibacterial test of coated paper was performed qualitatively and quantitatively against Escherichia coli (E. coli). It was shown to be effective in suppressing the growth of E. coli with increasing Ag contents on the surface of coated paper and more than 95 R (%) of antimicrobial rate was obtained at chitosan-AgNPs coated papers.

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References

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