Antibacterial Properties of Polysulfone Membranes Blended with Arabic Gum
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 (<i>Escherichia coli</i>, <i>Klebsiella pneumonia</i...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-02-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/9/2/29 |
| _version_ | 1827841944974262272 |
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| author | Souhir Sabri Ahmad Najjar Yehia Manawi Nahla Omer Eltai Asma Al-Thani Muataz Ali Atieh Viktor Kochkodan |
| author_facet | Souhir Sabri Ahmad Najjar Yehia Manawi Nahla Omer Eltai Asma Al-Thani Muataz Ali Atieh Viktor Kochkodan |
| author_sort | Souhir Sabri |
| collection | DOAJ |
| description | 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 (<i>Escherichia coli</i>, <i>Klebsiella pneumonia</i> and <i>Pseudomonas aeruginosa</i>) and Gram-positive (<i>Staphylococcus</i> <i>aureus</i>) 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. |
| first_indexed | 2024-03-12T08:00:58Z |
| format | Article |
| id | doaj.art-75a00cb4e6d947cc9bb90acf25cedc56 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-12T08:00:58Z |
| publishDate | 2019-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-75a00cb4e6d947cc9bb90acf25cedc562023-09-02T19:53:17ZengMDPI AGMembranes2077-03752019-02-01922910.3390/membranes9020029membranes9020029Antibacterial Properties of Polysulfone Membranes Blended with Arabic GumSouhir Sabri0Ahmad Najjar1Yehia Manawi2Nahla Omer Eltai3Asma Al-Thani4Muataz Ali Atieh5Viktor Kochkodan6Qatar Environment and Energy Research Institute (QEERI) Hamad Bin Khalifa University (HBKU), P.O. Box 34110 Doha, QatarCollege of Life and Health Sciences, Hamad Bin Khalifa University (HBKU), P.O. Box 34110 Doha, QatarQatar Environment and Energy Research Institute (QEERI) Hamad Bin Khalifa University (HBKU), P.O. Box 34110 Doha, QatarBiomedical Research Center (BRC), Qatar University (QU), Doha 2713, QatarBiomedical Research Center (BRC), Qatar University (QU), Doha 2713, QatarQatar Environment and Energy Research Institute (QEERI) Hamad Bin Khalifa University (HBKU), P.O. Box 34110 Doha, QatarQatar Environment and Energy Research Institute (QEERI) Hamad Bin Khalifa University (HBKU), P.O. Box 34110 Doha, QatarPolysulfone (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 (<i>Escherichia coli</i>, <i>Klebsiella pneumonia</i> and <i>Pseudomonas aeruginosa</i>) and Gram-positive (<i>Staphylococcus</i> <i>aureus</i>) 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.https://www.mdpi.com/2077-0375/9/2/29polysulfone membranesarabic gumbiofoulingmembrane hydrophilicitysurface charge |
| spellingShingle | Souhir Sabri Ahmad Najjar Yehia Manawi Nahla Omer Eltai Asma Al-Thani Muataz Ali Atieh Viktor Kochkodan Antibacterial Properties of Polysulfone Membranes Blended with Arabic Gum Membranes polysulfone membranes arabic gum biofouling membrane hydrophilicity surface charge |
| title | Antibacterial Properties of Polysulfone Membranes Blended with Arabic Gum |
| title_full | Antibacterial Properties of Polysulfone Membranes Blended with Arabic Gum |
| title_fullStr | Antibacterial Properties of Polysulfone Membranes Blended with Arabic Gum |
| title_full_unstemmed | Antibacterial Properties of Polysulfone Membranes Blended with Arabic Gum |
| title_short | Antibacterial Properties of Polysulfone Membranes Blended with Arabic Gum |
| title_sort | antibacterial properties of polysulfone membranes blended with arabic gum |
| topic | polysulfone membranes arabic gum biofouling membrane hydrophilicity surface charge |
| url | https://www.mdpi.com/2077-0375/9/2/29 |
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