Investigation of Antibacterial Activity of Cellulose Acetate Membranes with Amino-functionalized Nanodiamond Particles
محل انتشار: شانزدهمین کنگره ملی مهندسی شیمی ایران
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 495
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شناسه ملی سند علمی:
NICEC16_683
تاریخ نمایه سازی: 7 خرداد 1398
چکیده مقاله:
Nanodiamond (ND) particles embedded cellulose acetate (CA) membranes were fabricated via non-solvent induced phase separation method, in oredr to improvement in antibacterial activity of CA membranes. ND particles were first functionalized by 1,3-phenylenediamine (mPDA) to produce the functional amine groups (NH2) on their surfaces (ND-NH2). Different amount of ND-NH2 particles (0–0.75 wt.%) were added to the CA membranes. Surface functionalization was confirmed by Fourier transform infrared (FTIR) spectroscopy. The antibacterial tests confirmed that the nanocomposite membranes containing ND-NH2 displayed greater antibacterial enhancement against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Also, scanning electron microscopy (SEM) images of membrane surface after immersion in the bioreactor media (which consists of various bacteria) showed that the lowest number of bacteria was attached on the CA/ND-NH2 nanocomposite membrane with respect to other samples.
کلیدواژه ها:
نویسندگان
Habib Etemadi
Department of Chemical Engineering, University of Bonab, Bonab, Iran
Reza Yegani
Department of Chemical Engineering, University of Bonab, Bonab, Iran Faculty of Chemical Engineering, Sahand University of Technology, Tabriz, Iran
Hamidreza Qazvini
Department of Polymer Science and Engineering, University of Bonab, Bonab, Iran