ANTIMICROBIAL EFFICACY OF ZINC OXIDE NANOPARTICLES SUSPENSION AGAINST GRAM NEGATIVE AND GRAM POSITIVE BACTERIA

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HOSEINZADEH EDRIS; SAMARGHANDI MOHAMMAD REZA; ALIKHANI MOHAMADYUSEF; ROSHANAEI GHODRATOLLAH; ASGARI GHORBAN

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Journal: IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT Year:2012 | Volume:5 | Issue:3 (17) Page(s): 463-474

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Title

ANTIMICROBIAL EFFICACY OF ZINC OXIDE NANOPARTICLES SUSPENSION AGAINST GRAM NEGATIVE AND GRAM POSITIVE BACTERIA

Author(s)

Keywords

GRAM NEGATIVE BACTERIAQ2

GRAM POSITIVE BACTERIAQ2

ANTIMICROBIAL EFFECTQ2

ZNOQ2

Abstract

Background and Objectives: Along with the rapid development of human life, controlling harmful effects of microorganisms would be unavoidable. The objective of this study was to evaluate antibacterial efficacy of zinc oxide nanoparticles on different microbial strains.Material and Methods: This experimental study was done using gram negative and GRAM POSITIVE BACTERIA in nutrient media. Nanoparticle characterization was determined using X-ray diffraction (XRD), scanning and transmission electron microscopy (SEM and TEM). Bacterial sensitivity to nanoparticles was tested using a disk diffusion test and minimum inhibitory concentration (MIC).Time-kill studies and other tests were carried out using 108 CFU/mL of bacteria at baseline. A point of zero charge, pHzpc, of nanoparticle was investigated using the batch equilibration method.Obtained data were managed by SPSS Ver.16 and were analyzed through the Pearson, analysis of variance (ANOVA) and Student’s independent t-tests.0.05 was selected as significant level for all tests.Results: Characterization results from XRD, SEM, and TEM showed that particles are in nano range and they do not contain any discernible crystalline impurity. The average ZNO nanoparticles diameter was 20 nm. The pHZPC for ZNO was found to be 7.51. The P. aeruginosa strain exhibited larger diameter inhibition zone (DIZ) to ZNO nanoparticle compared with other strains. Population of P.aeroginosa for 2 x MIC concentration was reduced to zero in the presence of nano ZNO within 150 min. The bacterial CFU had significant difference with contact time, nanoparticles loading, and bacterial strain (P<0.001).Conclusion: This study demonstrated that antibacterial activity of ZNO can be a candidates for the elimination of gram negative and GRAM POSITIVE BACTERIA, particularly in nasocomial infection agent control.

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APA: Copy

HOSEINZADEH, EDRIS, SAMARGHANDI, MOHAMMAD REZA, ALIKHANI, MOHAMADYUSEF, ROSHANAEI, GHODRATOLLAH, & ASGARI, GHORBAN. (2012). ANTIMICROBIAL EFFICACY OF ZINC OXIDE NANOPARTICLES SUSPENSION AGAINST GRAM NEGATIVE AND GRAM POSITIVE BACTERIA. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 5(3 (17)), 463-474. SID. https://sid.ir/paper/145712/en

Vancouver: Copy

HOSEINZADEH EDRIS, SAMARGHANDI MOHAMMAD REZA, ALIKHANI MOHAMADYUSEF, ROSHANAEI GHODRATOLLAH, ASGARI GHORBAN. ANTIMICROBIAL EFFICACY OF ZINC OXIDE NANOPARTICLES SUSPENSION AGAINST GRAM NEGATIVE AND GRAM POSITIVE BACTERIA. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2012;5(3 (17)):463-474. Available from: https://sid.ir/paper/145712/en

IEEE: Copy

EDRIS HOSEINZADEH, MOHAMMAD REZA SAMARGHANDI, MOHAMADYUSEF ALIKHANI, GHODRATOLLAH ROSHANAEI, and GHORBAN ASGARI, “ANTIMICROBIAL EFFICACY OF ZINC OXIDE NANOPARTICLES SUSPENSION AGAINST GRAM NEGATIVE AND GRAM POSITIVE BACTERIA,” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 5, no. 3 (17), pp. 463–474, 2012, [Online]. Available: https://sid.ir/paper/145712/en

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