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Tannic acid-mediated green synthesis of antibacterial silver nanoparticles.
Arch Pharm Res. 2016 Apr; 39(4):465-473.AP

Abstract

The search for novel antibacterial agents is necessary to combat microbial resistance to current antibiotics. Silver nanoparticles (AgNPs) have been reported to be effective antibacterial agents. Tannic acid is a polyphenol compound from plants with antioxidant and antibacterial activities. In this report, AgNPs were prepared from silver ions by tannic acid-mediated green synthesis (TA-AgNPs). The reaction process was facile and involved mixing both silver ions and tannic acid. The absorbance at 423 nm in the UV-Visible spectra demonstrated that tannic acid underwent a reduction reaction to produce TA-AgNPs from silver ions. The synthetic yield of TA-AgNPs was 90.5% based on inductively coupled plasma mass spectrometry analysis. High-resolution transmission electron microscopy and atomic force microscopy images indicated that spherical-shaped TA-AgNPs with a mean particle size of 27.7-46.7 nm were obtained. Powder high-resolution X-ray diffraction analysis indicated that the TA-AgNP structure was face-centered cubic with a zeta potential of -27.56 mV. The hydroxyl functional groups of tannic acid contributed to the synthesis of TA-AgNPs, which was confirmed by Fourier transform infrared spectroscopy. The in vitro antibacterial activity was measured using the minimum inhibitory concentration (MIC) method. The TA-AgNPs were more effective against Gram-negative bacteria than Gram-positive bacteria. The MIC for the TA-AgNPs in all of the tested strains was in a silver concentration range of 6.74-13.48 μg/mL. The tannic acid-mediated synthesis of AgNPs afforded biocompatible nanocomposites for antibacterial applications.

Authors+Show Affiliations

College of Pharmacy, Inje University, 197 Inje-ro, Gimhae, Gyeongnam, 621-749, Republic of Korea.National Creative Research Initiatives (NCRI) Center for Isogeometric Optimal Design, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, Republic of Korea.National Creative Research Initiatives (NCRI) Center for Isogeometric Optimal Design, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, Republic of Korea.College of Pharmacy, Inje University, 197 Inje-ro, Gimhae, Gyeongnam, 621-749, Republic of Korea. youmiep@inje.ac.kr.

Pub Type(s)

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

Language

eng

PubMed ID

26895244

Citation

Kim, Tae Yoon, et al. "Tannic Acid-mediated Green Synthesis of Antibacterial Silver Nanoparticles." Archives of Pharmacal Research, vol. 39, no. 4, 2016, pp. 465-473.
Kim TY, Cha SH, Cho S, et al. Tannic acid-mediated green synthesis of antibacterial silver nanoparticles. Arch Pharm Res. 2016;39(4):465-473.
Kim, T. Y., Cha, S. H., Cho, S., & Park, Y. (2016). Tannic acid-mediated green synthesis of antibacterial silver nanoparticles. Archives of Pharmacal Research, 39(4), 465-473. https://doi.org/10.1007/s12272-016-0718-8
Kim TY, et al. Tannic Acid-mediated Green Synthesis of Antibacterial Silver Nanoparticles. Arch Pharm Res. 2016;39(4):465-473. PubMed PMID: 26895244.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Tannic acid-mediated green synthesis of antibacterial silver nanoparticles. AU - Kim,Tae Yoon, AU - Cha,Song-Hyun, AU - Cho,Seonho, AU - Park,Youmie, Y1 - 2016/02/19/ PY - 2015/09/15/received PY - 2016/02/04/accepted PY - 2016/2/20/entrez PY - 2016/2/20/pubmed PY - 2017/1/17/medline KW - Antibacterial activity KW - Green synthesis KW - Silver nanoparticles KW - Tannic acid SP - 465 EP - 473 JF - Archives of pharmacal research JO - Arch Pharm Res VL - 39 IS - 4 N2 - The search for novel antibacterial agents is necessary to combat microbial resistance to current antibiotics. Silver nanoparticles (AgNPs) have been reported to be effective antibacterial agents. Tannic acid is a polyphenol compound from plants with antioxidant and antibacterial activities. In this report, AgNPs were prepared from silver ions by tannic acid-mediated green synthesis (TA-AgNPs). The reaction process was facile and involved mixing both silver ions and tannic acid. The absorbance at 423 nm in the UV-Visible spectra demonstrated that tannic acid underwent a reduction reaction to produce TA-AgNPs from silver ions. The synthetic yield of TA-AgNPs was 90.5% based on inductively coupled plasma mass spectrometry analysis. High-resolution transmission electron microscopy and atomic force microscopy images indicated that spherical-shaped TA-AgNPs with a mean particle size of 27.7-46.7 nm were obtained. Powder high-resolution X-ray diffraction analysis indicated that the TA-AgNP structure was face-centered cubic with a zeta potential of -27.56 mV. The hydroxyl functional groups of tannic acid contributed to the synthesis of TA-AgNPs, which was confirmed by Fourier transform infrared spectroscopy. The in vitro antibacterial activity was measured using the minimum inhibitory concentration (MIC) method. The TA-AgNPs were more effective against Gram-negative bacteria than Gram-positive bacteria. The MIC for the TA-AgNPs in all of the tested strains was in a silver concentration range of 6.74-13.48 μg/mL. The tannic acid-mediated synthesis of AgNPs afforded biocompatible nanocomposites for antibacterial applications. SN - 0253-6269 UR - https://www.unboundmedicine.com/medline/citation/26895244/Tannic_acid_mediated_green_synthesis_of_antibacterial_silver_nanoparticles_ L2 - https://dx.doi.org/10.1007/s12272-016-0718-8 DB - PRIME DP - Unbound Medicine ER -