Antibacterial Properties of Polysulfone Membranes Blended with Arabic Gum.
Author | Sabri, Souhir |
Author | Najjar, Ahmad |
Author | Manawi, Yehia |
Author | Eltai, Nahla Omer |
Author | Al-Thani, Asma |
Author | Atieh, Muataz Ali |
Author | Kochkodan, Viktor |
Available date | 2019-03-11T06:42:23Z |
Publication Date | 2019-02-01 |
Publication Name | Membranes |
Identifier | http://dx.doi.org/10.3390/membranes9020029 |
Citation | Sabri, S.; Najjar, A.; Manawi, Y.; Eltai, N.O.; Al-Thani, A.; Atieh, M.A.; Kochkodan, V. Antibacterial Properties of Polysulfone Membranes Blended with Arabic Gum. Membranes 2019, 9, 29. |
Abstract | Polysulfone (PS) membranes blended with different loadings of arabic gum (AG) were synthesized using phase inversion method and the antibacterial properties of the synthesized membranes were tested using a number Gram-negative (, and ) and Gram-positive () bacterial species. It was shown that AG addition to the dope polymer solutions essentially changed porous structure, hydrophilicity and zeta potential of the cast PS/AG membranes. These changes were due to the amphiphilic properties of AG macromolecules that contained negatively charged hydrophilic residues. A pronounced decrease in bacterial attachment was seen in the field emission scanning electron microscopy (FESEM) images for PS/AG membrane samples compared to both commercial (Microdyn-Nadir) and bare PS (without AG) membranes. AG loading dependent trend was observed where the prevention of bacterial colonization on the membrane surface was strongest at the highest (7 wt. %) AG loading in the casting solution. Possible mechanisms for the prevention of bacterial colonization were discussed. Significantly, the inhibition of bacterial attachment and growth on PS/AG membranes was observed for both Gram-positive and Gram-negative bacterial models, rendering these novel membranes with strong biofouling resistance attractive for water treatment applications. |
Language | en |
Publisher | MDPI |
Subject | arabic gum biofouling membrane hydrophilicity polysulfone membranes surface charge |
Type | Article |
Issue Number | 2 |
Volume Number | 9 |
ESSN | 2077-0375 |
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Biomedical Research Center Research [709 items ]