BIOASSAY FOR TOXICITY ASSESSMENT OF ZINC OXIDE AND TITANIUM OXIDE TO ESCHERICHIA COLI ATCC 35218 AND STAPHYLOCOCCUS AUREUS ATCC 25923 BACTERIA

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

NADDAFI K.; ZAREH M.R.; YOUNESIAN M.; RASTKARI N.; ALIMOHAMMADI M.; MOUSAVI N.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Health and Environment Year:2011 | Volume:4 | Issue:2 (12) Page(s): 171-180

Download Full-Text

Persian Verion

View:

1,546

Download:

Cites:

Information Journal Paper

Title

BIOASSAY FOR TOXICITY ASSESSMENT OF ZINC OXIDE AND TITANIUM OXIDE TO ESCHERICHIA COLI ATCC 35218 AND STAPHYLOCOCCUS AUREUS ATCC 25923 BACTERIA

Author(s)

Keywords

NANOPARTICLEQ2

ZINC OXIDEQ2

TITANIUM OXIDEQ3

TOXICITYQ2

BIOASSAYQ2

ESCHERICHIA COLIQ3

STAPHYLOCOCCUS AUREUSQ3

Abstract

Background and Objectives: This study was conducted to investigate the TOXICITY of TITANIUM OXIDE (TiO2) and ZINC OXIDE (ZnO) NANOPARTICLEs as two of most widely used NANOPARTICLEs. The result of this study can help to designing environmental standard and legislations for NANOPARTICLEs.Materials and Methods: Different concentrations of Nano ZnO and TiO2 NANOPARTICLEs were added to nutrient Agar culture media. Then, definite numbers of ESCHERICHIA COLI and STAPHYLOCOCCUS AUREUS bacteria were added to culture media and inhibition of these bacteria growth was measured in comparison to controls. Obtained data were analyzed to determine NANOPARTICLEs’ EC50 and NOEC (No Observed Effect Concentration) using SPSS ver.16 and Probit standard test.Results: 24-hours EC50 of Nano ZnO using E. coli and S. aureus determined to be 5.47 mg/L and 2.38 mg/L respectively. In addition, 24-hours EC50 of Nano TiO2 using E. coli and S. aureus determined to be 5366 mg/L and 3471 mg/L respectively. In the case of ZnO NANOPARTICLEs, no observed effect concentration determined to be 1.15 and 3.28 mg/L for E. coli and S. aureus respectively and in the case of TiO2 NANOPARTICLEs no observed effect level determined to be 1937 and 1184 mg/L for E. coli and S. aureus respectively.Conclusion: This study showed that acute TOXICITY of Nano ZnO is by far more than that of Nano TiO2. Regarding the EPA acute TOXICITY criteria, Nano ZnO is categorized as moderately toxic and Nano TiO2 is categorized as practically non toxic. Hence, regarding the acute TOXICITY, in recommending exposure criteria and environmental disposal standards, compared to Nano TiO2, Nano ZnO requires more attention.

Cites

INVESTIGATION OF TOXICITY CHANGES OF CATECHOL IN OXIDATION PROCESS WITH OZONE BY BIOASSAY

References

No record.

Cite

APA: Copy

NADDAFI, K., ZAREH, M.R., YOUNESIAN, M., RASTKARI, N., ALIMOHAMMADI, M., & MOUSAVI, N.. (2011). BIOASSAY FOR TOXICITY ASSESSMENT OF ZINC OXIDE AND TITANIUM OXIDE TO ESCHERICHIA COLI ATCC 35218 AND STAPHYLOCOCCUS AUREUS ATCC 25923 BACTERIA. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 4(2 (12)), 171-180. SID. https://sid.ir/paper/145998/en

Vancouver: Copy

NADDAFI K., ZAREH M.R., YOUNESIAN M., RASTKARI N., ALIMOHAMMADI M., MOUSAVI N.. BIOASSAY FOR TOXICITY ASSESSMENT OF ZINC OXIDE AND TITANIUM OXIDE TO ESCHERICHIA COLI ATCC 35218 AND STAPHYLOCOCCUS AUREUS ATCC 25923 BACTERIA. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2011;4(2 (12)):171-180. Available from: https://sid.ir/paper/145998/en

IEEE: Copy

K. NADDAFI, M.R. ZAREH, M. YOUNESIAN, N. RASTKARI, M. ALIMOHAMMADI, and N. MOUSAVI, “BIOASSAY FOR TOXICITY ASSESSMENT OF ZINC OXIDE AND TITANIUM OXIDE TO ESCHERICHIA COLI ATCC 35218 AND STAPHYLOCOCCUS AUREUS ATCC 25923 BACTERIA,” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 4, no. 2 (12), pp. 171–180, 2011, [Online]. Available: https://sid.ir/paper/145998/en

Related Journal Papers