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Dual-crosslinked poly(vinyl alcohol)/sodium alginate/silver nanocomposite beads - A promising antimicrobial material.
Food Chem. 2017 Nov 01; 234:103-110.FC

Abstract

In this paper, we report the immobilization of borate-stabilized silver nanoparticles (AgNPs) as nanofillers in dual-crosslinked polymers comprised of poly(vinyl alcohol) (PVA) and sodium alginate (SA) at different ratios. Ionic-crosslinking using Ca[2+] ions and physical-crosslinking by freeze-thawing were used to entrap silver nanoparticles in the prepared PVA/SA/AgNPs nanocomposite beads. These polymeric nanocomposites were characterized by UV-Vis, XRD, FE-SEM, FT-IR, TGA, and using rheological and swelling properties. The antibacterial activities of these PVA/SA/AgNPs nanocomposites were evaluated against Escherichia coli O157: H7, which causes escherichiosis through contaminated food and water. The results obtained indicated that PVA/SA/AgNPs nanocomposite formed with a ratio 10/90 of PVA to SA (formulation F5) exhibited high bactericidal activity, with entrapment of AgNPs and had excellent rheological and thermal stabilities. Due to the low cost and effectiveness of these antimicrobial nanocomposites, they have potential as an active food-packaging material for food safety and to extend shelf-life of packaged foods.

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Authors+Show Affiliations

Narayanan KB
School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea; Department of Nano, Medical & Polymer Materials, College of Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
Han SS
School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea; Department of Nano, Medical & Polymer Materials, College of Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea. Electronic address: sshan@yu.ac.kr.

MeSH

AlginatesAnti-Bacterial AgentsEscherichia coli O157Glucuronic AcidHexuronic AcidsMetal NanoparticlesNanocompositesPolyvinyl AlcoholSilverSpectroscopy, Fourier Transform Infrared

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28551212

Citation

Narayanan, Kannan Badri, and Sung Soo Han. "Dual-crosslinked Poly(vinyl Alcohol)/sodium Alginate/silver Nanocomposite Beads - a Promising Antimicrobial Material." Food Chemistry, vol. 234, 2017, pp. 103-110.
Narayanan KB, Han SS. Dual-crosslinked poly(vinyl alcohol)/sodium alginate/silver nanocomposite beads - A promising antimicrobial material. Food Chem. 2017;234:103-110.
Narayanan, K. B., & Han, S. S. (2017). Dual-crosslinked poly(vinyl alcohol)/sodium alginate/silver nanocomposite beads - A promising antimicrobial material. Food Chemistry, 234, 103-110. https://doi.org/10.1016/j.foodchem.2017.04.173
Narayanan KB, Han SS. Dual-crosslinked Poly(vinyl Alcohol)/sodium Alginate/silver Nanocomposite Beads - a Promising Antimicrobial Material. Food Chem. 2017 Nov 1;234:103-110. PubMed PMID: 28551212.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dual-crosslinked poly(vinyl alcohol)/sodium alginate/silver nanocomposite beads - A promising antimicrobial material. AU - Narayanan,Kannan Badri, AU - Han,Sung Soo, Y1 - 2017/04/29/ PY - 2016/12/27/received PY - 2017/03/30/revised PY - 2017/04/27/accepted PY - 2017/5/29/entrez PY - 2017/5/30/pubmed PY - 2017/8/9/medline KW - Alginate KW - Antibacterial KW - Food packaging KW - Nanocomposite KW - Poly(vinyl) alcohol KW - Silver nanoparticles SP - 103 EP - 110 JF - Food chemistry JO - Food Chem VL - 234 N2 - In this paper, we report the immobilization of borate-stabilized silver nanoparticles (AgNPs) as nanofillers in dual-crosslinked polymers comprised of poly(vinyl alcohol) (PVA) and sodium alginate (SA) at different ratios. Ionic-crosslinking using Ca[2+] ions and physical-crosslinking by freeze-thawing were used to entrap silver nanoparticles in the prepared PVA/SA/AgNPs nanocomposite beads. These polymeric nanocomposites were characterized by UV-Vis, XRD, FE-SEM, FT-IR, TGA, and using rheological and swelling properties. The antibacterial activities of these PVA/SA/AgNPs nanocomposites were evaluated against Escherichia coli O157: H7, which causes escherichiosis through contaminated food and water. The results obtained indicated that PVA/SA/AgNPs nanocomposite formed with a ratio 10/90 of PVA to SA (formulation F5) exhibited high bactericidal activity, with entrapment of AgNPs and had excellent rheological and thermal stabilities. Due to the low cost and effectiveness of these antimicrobial nanocomposites, they have potential as an active food-packaging material for food safety and to extend shelf-life of packaged foods. SN - 1873-7072 UR - https://www.unboundmedicine.com/medline/citation/28551212/Dual_crosslinked_poly_vinyl_alcohol_/sodium_alginate/silver_nanocomposite_beads___A_promising_antimicrobial_material_ DB - PRIME DP - Unbound Medicine ER -