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Fabrication of gelatin-TiO2 nanocomposite film and its structural, antibacterial and physical properties.
Int J Biol Macromol. 2016 Mar; 84:153-60.IJ

Abstract

Biodegradable fish skin gelatin-titanium dioxide (TiO2) nanocomposite films were fabricated and characterized as a function of incorporating amount of TiO2 nanoparticles (gelatin/TiO2 ratio of 30:1, 20:1 and 10:1). A uniform distribution of TiO2 nanoparticles into gelatin matrix was observed using atomic force microscopy (AFM) micrographs. The data of intrinsic fluorescence spectra, Fourier transform infrared spectra (FTIR) and X-ray diffraction confirmed the interaction between protein and nanoparticles through hydrogen bonding. The TiO2-incorporated gelatin nanocomposite films exhibited more effective antibacterial activity for Escherichia coli after irradiating 120 min by UV light (365 nm), which were 54.38% for E. coli and 44.89% for Staphylococcus aureus, respectively. The analysis of physical properties revealed that addition of TiO2 nanoparticles to gelatin films significantly increased the tensile strength and elongation at break, while decreased its water vapor permeability. The light barrier measurements indicated that these films were highly transparent, and they had excellent barrier properties against UVC light at the same time. The results demonstrated the feasibility of incorporating nanoparticles to improve the properties of gelatin films, and it is of significance in utilizing the gelatin and titanium dioxide to produce biodegradable nanocomposite film as packaging material in food industry.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

He Q
College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China.
Zhang Y
College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China.
Cai X
College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China.
Wang S
College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China. Electronic address: shywang@fzu.edu.cn.

MeSH

Anti-Bacterial AgentsGelatinMechanical PhenomenaMicrobial Sensitivity TestsMicroscopy, Atomic ForceNanocompositesPermeabilitySpectroscopy, Fourier Transform InfraredSteamTitaniumX-Ray Diffraction

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26691381

Citation

He, Qingyan, et al. "Fabrication of gelatin-TiO2 Nanocomposite Film and Its Structural, Antibacterial and Physical Properties." International Journal of Biological Macromolecules, vol. 84, 2016, pp. 153-60.
He Q, Zhang Y, Cai X, et al. Fabrication of gelatin-TiO2 nanocomposite film and its structural, antibacterial and physical properties. Int J Biol Macromol. 2016;84:153-60.
He, Q., Zhang, Y., Cai, X., & Wang, S. (2016). Fabrication of gelatin-TiO2 nanocomposite film and its structural, antibacterial and physical properties. International Journal of Biological Macromolecules, 84, 153-60. https://doi.org/10.1016/j.ijbiomac.2015.12.012
He Q, et al. Fabrication of gelatin-TiO2 Nanocomposite Film and Its Structural, Antibacterial and Physical Properties. Int J Biol Macromol. 2016;84:153-60. PubMed PMID: 26691381.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fabrication of gelatin-TiO2 nanocomposite film and its structural, antibacterial and physical properties. AU - He,Qingyan, AU - Zhang,Yuchen, AU - Cai,Xixi, AU - Wang,Shaoyun, Y1 - 2015/12/12/ PY - 2015/06/17/received PY - 2015/11/30/revised PY - 2015/12/09/accepted PY - 2015/12/23/entrez PY - 2015/12/23/pubmed PY - 2016/10/21/medline KW - Antibacterial KW - Nanocomposite film KW - Structural SP - 153 EP - 60 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 84 N2 - Biodegradable fish skin gelatin-titanium dioxide (TiO2) nanocomposite films were fabricated and characterized as a function of incorporating amount of TiO2 nanoparticles (gelatin/TiO2 ratio of 30:1, 20:1 and 10:1). A uniform distribution of TiO2 nanoparticles into gelatin matrix was observed using atomic force microscopy (AFM) micrographs. The data of intrinsic fluorescence spectra, Fourier transform infrared spectra (FTIR) and X-ray diffraction confirmed the interaction between protein and nanoparticles through hydrogen bonding. The TiO2-incorporated gelatin nanocomposite films exhibited more effective antibacterial activity for Escherichia coli after irradiating 120 min by UV light (365 nm), which were 54.38% for E. coli and 44.89% for Staphylococcus aureus, respectively. The analysis of physical properties revealed that addition of TiO2 nanoparticles to gelatin films significantly increased the tensile strength and elongation at break, while decreased its water vapor permeability. The light barrier measurements indicated that these films were highly transparent, and they had excellent barrier properties against UVC light at the same time. The results demonstrated the feasibility of incorporating nanoparticles to improve the properties of gelatin films, and it is of significance in utilizing the gelatin and titanium dioxide to produce biodegradable nanocomposite film as packaging material in food industry. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/26691381/Fabrication_of_gelatin_TiO2_nanocomposite_film_and_its_structural_antibacterial_and_physical_properties_ DB - PRIME DP - Unbound Medicine ER -