Synthesis of Ternary Fe3O4/ZnO/Chitosan Magnetic Nanoparticles via an Ultrasound-Assisted Coprecipitation Process for Antibacterial Applications

Journal of Nanomaterials - Tập 2020 - Trang 1-9 - 2020
Vu Minh Thanh1, Huong Nguyen Thi1, Dao The Nam1, Nguyen Dinh Tien Dung2,3, Le Van Thu4, Nguyen Le Minh Tri5,6
1Institute of Chemistry and Materials, 17 Hoang Sam, Cau Giay, Hanoi, Vietnam
2Faculty of Natural Science, Duy Tan University, Danang City 550000, Vietnam
3Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam
4Ministry of Public Security, 80 Tran Quoc Hoan, Cau Giay, Hanoi City 100000, Vietnam
5Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
6Laboratory of Advanced Materials Chemistry, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam

Tóm tắt

In this study, Fe3O4/ZnO/chitosan magnetic nanoparticles were synthesized by an ultrasound-assisted coprecipitation method. The magnetic nanoparticles were characterized by XRD, FT-IR, FESEM, and VSM techniques. The effects of ultrasonication time and content of chitosan on crystal size and lattice parameters of the nanoparticles were also studied via XRD spectra. FESEM measurements revealed that the coating consists of Fe3O4/ZnO nanoparticles of 15-20 nm in diameter homogeneously dispersed on the surface of chitosan substance. The VSM measurements at room temperature showed that the Fe3O4/ZnO/chitosan nanoparticles had superparamagnetic properties. These results indicated that ultrasonication time and chitosan content had a significant effect on the characteristics of nanoparticles. The antibacterial activities of the Fe3O4/ZnO/chitosan were tested against both gram-positive Saccharomyces cerevisiae and Bacillus subtilis and gram-negative E. coli bacteria using a disk diffusion method.

Từ khóa


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Journal of Nanomaterials

Tập 2020

1-9

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