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Amino acid mediated synthesis of silver nanoparticles and preparation of antimicrobial agar/silver nanoparticles composite films.
Carbohydr Polym. 2015 Oct 05; 130:353-63.CP

Abstract

Silver nanoparticles (AgNPs) were synthesized using amino acids (tyrosine and tryptophan) as reducing and capping agents, and they were incorporated into the agar to prepare antimicrobial composite films. The AgNPs solutions exhibited characteristic absorption peak at 420 nm that showed a red shift to ∼434 nm after forming composite with agar. XRD data demonstrated the crystalline structure of AgNPs with dominant (111) facet. Apparent surface color and transmittance of agar films were greatly influenced by the AgNPs. The incorporation of AgNPs into agar did not exhibit any change in chemical structure, thermal stability, moisture content, and water vapor permeability. The water contact angle, tensile strength, and modulus decreased slightly, but elongation at break increased after AgNPs incorporation. The agar/AgNPs nanocomposite films possessed strong antibacterial activity against Listeria monocytogenes and Escherichia coli. The agar/AgNPs film could be applied to the active food packaging by controlling the food-borne pathogens.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Shankar S
Department of Food Engineering and Bionanocomposite Research Institute, Mokpo National University, 61 Dorimri, Chungkyemyon, Muangun, 534729 Jeonnam, Republic of Korea.
Rhim JW
Department of Food Engineering and Bionanocomposite Research Institute, Mokpo National University, 61 Dorimri, Chungkyemyon, Muangun, 534729 Jeonnam, Republic of Korea. Electronic address: jwrhim@mokpo.ac.kr.

MeSH

AgarAmino AcidsAnti-Bacterial AgentsEscherichia coliListeria monocytogenesMetal NanoparticlesMicrobial Sensitivity TestsNanocompositesSilverSpectroscopy, Fourier Transform InfraredThermogravimetryX-Ray Diffraction

Pub Type(s)

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

Language

eng

PubMed ID

26076636

Citation

Shankar, Shiv, and Jong-Whan Rhim. "Amino Acid Mediated Synthesis of Silver Nanoparticles and Preparation of Antimicrobial Agar/silver Nanoparticles Composite Films." Carbohydrate Polymers, vol. 130, 2015, pp. 353-63.
Shankar S, Rhim JW. Amino acid mediated synthesis of silver nanoparticles and preparation of antimicrobial agar/silver nanoparticles composite films. Carbohydr Polym. 2015;130:353-63.
Shankar, S., & Rhim, J. W. (2015). Amino acid mediated synthesis of silver nanoparticles and preparation of antimicrobial agar/silver nanoparticles composite films. Carbohydrate Polymers, 130, 353-63. https://doi.org/10.1016/j.carbpol.2015.05.018
Shankar S, Rhim JW. Amino Acid Mediated Synthesis of Silver Nanoparticles and Preparation of Antimicrobial Agar/silver Nanoparticles Composite Films. Carbohydr Polym. 2015 Oct 5;130:353-63. PubMed PMID: 26076636.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Amino acid mediated synthesis of silver nanoparticles and preparation of antimicrobial agar/silver nanoparticles composite films. AU - Shankar,Shiv, AU - Rhim,Jong-Whan, Y1 - 2015/05/18/ PY - 2015/03/28/received PY - 2015/04/30/revised PY - 2015/05/04/accepted PY - 2015/6/17/entrez PY - 2015/6/17/pubmed PY - 2016/3/25/medline KW - Agar KW - Amino acids KW - Antibacterial activity KW - Nanocomposite film KW - Silver nanoparticles SP - 353 EP - 63 JF - Carbohydrate polymers JO - Carbohydr Polym VL - 130 N2 - Silver nanoparticles (AgNPs) were synthesized using amino acids (tyrosine and tryptophan) as reducing and capping agents, and they were incorporated into the agar to prepare antimicrobial composite films. The AgNPs solutions exhibited characteristic absorption peak at 420 nm that showed a red shift to ∼434 nm after forming composite with agar. XRD data demonstrated the crystalline structure of AgNPs with dominant (111) facet. Apparent surface color and transmittance of agar films were greatly influenced by the AgNPs. The incorporation of AgNPs into agar did not exhibit any change in chemical structure, thermal stability, moisture content, and water vapor permeability. The water contact angle, tensile strength, and modulus decreased slightly, but elongation at break increased after AgNPs incorporation. The agar/AgNPs nanocomposite films possessed strong antibacterial activity against Listeria monocytogenes and Escherichia coli. The agar/AgNPs film could be applied to the active food packaging by controlling the food-borne pathogens. SN - 1879-1344 UR - https://www.unboundmedicine.com/medline/citation/26076636/Amino_acid_mediated_synthesis_of_silver_nanoparticles_and_preparation_of_antimicrobial_agar/silver_nanoparticles_composite_films_ DB - PRIME DP - Unbound Medicine ER -