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Preparation of chitin‐CdTe quantum dots films and antibacterial effect on Staphylococcus aureus and Pseudomonas aeruginosa
Author(s) -
Wansapura Poorna Tharaka,
Dassanayake Rohan Suranga,
Hamood Abdul,
Tran Phat,
Moussa Hanna,
Abidi Noureddine
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.44904
Subject(s) - chitin , fourier transform infrared spectroscopy , antibacterial activity , nuclear chemistry , thermogravimetric analysis , materials science , chemistry , nanotechnology , chemical engineering , chitosan , bacteria , organic chemistry , biology , engineering , genetics
Novel chitin–cadmium‐tellurium quantum dot (Chitin‐CdTeQD) hybrid films combining chitin and CdTe quantum dots (CdTeQDs) were prepared via a facile aqueous synthesis route at room temperature. Films were characterized by high‐resolution field emission scanning electron microscopy (HR‐FESEM) and energy dispersive X‐ray (EDX) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), and X‐ray diffraction analysis (XRD). Antibacterial activity was studied on both Gram‐positive ( Staphylococcus aureus ) and Gram‐negative ( Pseudomonas aeruginosa ) bacteria. Antibacterial properties were investigated with agar diffusion testing assay and with confocal laser scanning microscopic image analysis. Chitin–CdTeQD films exhibited an excellent antibacterial activity against both Gram‐positive and Gram‐negative bacteria. Chitin–CdTeQD films might be a desirable antibacterial material for wide range of biomedical applications including wound dressing, burn treatment, drug delivery systems, packaging, ophthalmology, and implants. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44904.