Article : A Novel And Rapid Synthesis Of Chitosan/Ag Nanocomposites And Investigation For Its Antibacterial Activity

Title

A Novel And Rapid Synthesis Of Chitosan/Ag Nanocomposites And Investigation For Its Antibacterial Activity

Author

Tran Thi Bich Quyen,Tran Quang Thanh,Tran Anh Minh, Nguyen Thi Phuong Thuy, Nguyen Thanh Nghia, Ho Thi Kim Ngan, Doan Van Hong Thien, Tran Thi Xuan Mai

A simple and effective green approach has been developed to synthesize chitosan/Ag nanocomposites that were successfully employed using kumquat aqueous extract and under supporting of microwave as biological reducing agents. It indicates to be an eco-friendly and rapid green method for the synthesis providing a cost effective and an efficient route for the chitosan/Ag nanocomposites’ synthesis. The shape and size of nanoparticles were conducted in the short time only ~10 min for the conversion of chitosan (polymers) and silver ions into chitosan/silver nanocomposites at power of 80 W in microwave. The prepared chitosan/Ag nanocomposites have been characterized by UV-vis, FTIR, XRD, TEM and EDS. Result showed those chitosan/Ag nanocomposites have been obtained with an average particle size of ~10-20 nm. Moreover, the synthesized chitosan/Ag nanocomposites also showed their efficient antimicrobial activity against on the E. coli bacteria. Thus, this eco-friendly method could be a competitive alternative to the conventional physical/chemical methods used for the synthesis of chitosan/Ag nanocompoites. Since, it has a potential to use in biomedical applications, opto-electronics and medical devices in future.

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