Enhanced antibacterial properties and suppressed biofilm growth on multi-walled carbon nanotube (MWCNT) blended polyethersulfone (PES) membranes
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, cilt.9, sa.2, 2021 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 9 Sayı: 2
- Basım Tarihi: 2021
- Doi Numarası: 10.1016/j.jece.2020.104755
- Dergi Adı: JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CAB Abstracts, Chemical Abstracts Core, Compendex, INSPEC, Veterinary Science Database
- Anahtar Kelimeler: Antibacterial resistance, Biofilm formation resistance, MWCNT, Polyethersulfone, Composite membranes
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
This study investigates the biofilm formation resistance of the multi-walled carbon nanotube (MWCNT) blended polyethersulfone (PES) membranes. The antimicrobial properties and biofilm formation resistance of these composite membranes were explored using Escherichia coli (E. coli) and Pseudomonas aeruginosa (P. aeruginosa) as model organisms. The results show that the dispersion of the MWCNTs in the membrane structure matters in determining the biofilm formation resistance of the composite membranes. Here, no colonies were observed on the composite membranes with 0.5 wt % of MWCNT content (C/P-0.5%) when the E. coli cells were deposited onto the membrane surface. Furthermore, when the membranes were incubated in P. aeruginosa suspensions, the C/P-0.5% membrane showed almost 87 % less biofilm formation at 24 h, with the biofilm formation resistance increasing to 92 % at 4 d, compared to the neat PES membrane. Finally, there was no MWCNT release during the water filtration of the composite membranes.