Green synthesized ZnO nanoparticles against bacterial and fungal pathogens

By Sangeetha Gunalan, R. Sivaraj, V. Rajendran. 2012

758 citations recorded by the source corpus.

Zinc oxide nanoparticles are known to be one of the multifunctional inorganic nanoparticles with effective antibacterial activity. This study aims to determine the antimicrobial efficacy of green and chemical synthesized ZnO nanoparticle against various bacterial and fungal pathogens. Various microbiological tests were performed using varying concentrations of green and chemical ZnO NPs with sizes 40 and 25 nm respectively. Results prove that green ZnO nanoparticles show more enhanced biocidal activity against various pathogens when compared to chemical ZnO nanoparticles. Also effectiveness of nanoparticles increases with increasing particle dose, treatment time and synthesis method. In addition, the current study has clearly demonstrated that the particle size variation and surface area to volume ratio of green ZnO nanoparticle are responsible for significant higher antimicrobial activity. From the results obtained it is suggested that green ZnO NPs could be used effectively in agricultural and food safety applications and also can address future medical concerns.

Subfields: Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/212d81875219ac7336db6fb2daed7ac624331d8b

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In Materials Chemistry

Citations in the corpus

Green synthesis of nanoparticles and its potential application (2015, neutral): “Green synthesized NPs play significant roles in medicines, clinical applications and in vitro diagnostic applications (Gunalan et al. 2012a, b; Khan and Ahmad 2013; Jayalakshmi and Yogamoorthi 2014; Arumugama et al. 2015; Kargara et al. 2015).”
Structural, optical, morphological and thermal properties of PEO/PVP blend containing different concentrations of biosynthesized Au nanoparticles (2017, background): “[6] Gunalan S, Sivaraj R, Rajendran V.”
Green synthesis of zinc oxide nanoparticles: A review of the synthesis methodology and mechanism of formation (2020, methodology): “nanoparticles, much of the available literature on the green synthesis of ZnONPs does not consider or report the pH of the solutions of the biological extracts used for obtaining this nanomaterial, as reported in Table 1 (Bala et al., 2015; Gunalan et al., 2012; Nava et al., 2017b, 2017a; Raliya and”
GREEN TEA (CAMELLIA SINENSIS) MEDIATED SYNTHESIS OF ZINC OXIDE (ZNO) NANOPARTICLES AND STUDIES ON THEIR ANTIMICROBIAL ACTIVITIES Original Article (2014, background): “The green synthesis of ZnO nanoparticles and the studies on their antimicrobial activities are still in the infancy stage and limited number of works have been reported [17, 18, 19, 20, 21].”
A review on green synthesis of zinc oxide nanoparticles –An eco-friendly approach (2017, background): “Zinc oxide NP has drawn interest in past two–three years due to its wide range of applicability in the ﬁeld of electronics, optics, and biomedical systems [34–40] .”
Synthesis, characterization and evaluation of effect of phytogenic zinc nanoparticles on soil exo-enzymes (2014, background): “Synthesis of Zinc oxide nanoparticles is also in progress (Kumar et al. 2011; Singh et al. 2011; Gunalan et al. 2012).”
Biosynthesis and antibacterial activity of ZnO nanoparticles using Trifolium pratense flower extract (2015, methodology): “The biological method of the synthesis of ZnO nanoparticles is gaining importance due to its simplicity, eco-friendliness and extensive antimicrobial activity (Gunalan et al., 2012).”