studying the polypropylenimine-g2 (ppi-g2) dendrimer performance in removal of escherichia coli, proteus mirabilis, bacillus subtilis and staphylococcus aureus from aqueous solution

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ID: 255817
2015
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Abstract
Abstract Background: Dendrimers are a subset of branched structures that have certain structural order. The aim of this study was to investigate the performance of Polypropylenimine-G2 (PPI-G2) dendrimers in removal of Escherichia coli, Proteus mirabilis, Bacillus subtilis and Staphylococcus aureus from aqueous solution. Materials and Methods: In this experimental study, initially dilution of 103 CFU/ml was prepared from each strain of bacteria. Then, different concentrations of dendrimers (0.5, 5, 50 and 500 µg/ml) was added to water. In order to determine the efficiency of dendrimers in removal of bacteria, samples were taken at different times (0, 10, 20, 30, 40, 50 and 60 min) and were cultured on nutrient agar medium. Samples were incubated for 24 hours at 37 ° C and then the number of colonies was counted. Results: By the increasment of dendrimer concentration and contact time, the number of bacteria in aqueous solution decreased. In times of 40, 50 and 60 minutes, and the concentrations of 50 and 500 µg/ml, all kinds of bacteria in aqueous solution were removed. 0.5 µg/ml of dendrimer concentration had not effect in reducing the number of Escherichia coli and Proteus mirabilis. The effect of dendrimer on gram-negative bacteria was weaker than gram-positive bacteria. Conclusion: Results of this study indicated that PPI-G2 dendrimer is able to remove Escherichia coli, Proteus mirabilis, Staphylococcus aureus and Bacillus subtilis in aqueous solution. However, using dendrimers can be considered as a new approach for drinking water disinfection but it requires further wide range studies.
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izanloo2015majallah-istudying Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Hasan Izanloo;Shahram Nazari;Mohammad Ahmadi Jebelli;Soodabeh Alizadeh Matboo;Hamid Reza Tashauoei;Behnam Vakili;Mohammad Rajabi;Hosein Aghababaei;Gharib Majidi
Journal addictive behaviors
Year 2015
DOI
DOI not found
URL
http://amuj.arakmu.ac.ir/article-1-3520-en.pdf
Keywords
aqueous solution

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