| Autor: |
Hai NTT; Department of Chemistry, University of Sciences, Hue University, 77 Nguyen Hue Street, Hue City 530000, Vietnam., Cuong ND; Department of Chemistry, University of Sciences, Hue University, 77 Nguyen Hue Street, Hue City 530000, Vietnam.; School of Hospitality and Tourism, Hue University, 22 Lam Hoang Street, Hue City 530000, Vietnam., Quyen NT; Pepper Research and Development Center, Pleiku City 600000, Vietnam., Hien NQ; Research and Development Center for Radiation Technology, Viet Nam Atomic Energy Institute, Ho Chi Minh City 700000, Vietnam., Hien TTD; Pepper Research and Development Center, Pleiku City 600000, Vietnam., Phung NTT; Pepper Research and Development Center, Pleiku City 600000, Vietnam., Toan DK; Department of Chemistry, University of Sciences, Hue University, 77 Nguyen Hue Street, Hue City 530000, Vietnam.; Nguyen Binh Khiem High School, Chu Se District, Pleiku City 600000, Vietnam., Huong NTT; Department of Chemistry, University of Sciences, Hue University, 77 Nguyen Hue Street, Hue City 530000, Vietnam., Phu DV; Research and Development Center for Radiation Technology, Viet Nam Atomic Energy Institute, Ho Chi Minh City 700000, Vietnam., Hoa TT; Department of Chemistry, University of Sciences, Hue University, 77 Nguyen Hue Street, Hue City 530000, Vietnam. |
| Abstrakt: |
Cu nanoparticles are a potential material for creating novel alternative antimicrobial products due to their unique antibacterial/antifungal properties, stability, dispersion, low cost and abundance as well as being economical and ecofriendly. In this work, carboxymethyl cellulose coated core/shell SiO 2 @Cu nanoparticles (NPs) were synthesized by a simple and effective chemical reduction process. The initial SiO 2 NPs, which were prepared from rice husk ash, were coated by a copper ultrathin film using hydrazine and carboxymethyl cellulose (CMC) as reducing agent and stable agent, respectively. The core/shell SiO 2 @Cu nanoparticles with an average size of ~19 nm were surrounded by CMC. The results indicated that the SiO 2 @Cu@CMC suspension was a homogenous morphology with a spherical shape, regular dispersion and good stability. Furthermore, the multicomponent SiO 2 @Cu@CMC NPs showed good antifungal activity against Phytophthora capsici ( P. capsici ). The novel Cu NPs-based multicomponent suspension is a key compound in the development of new fungicides for the control of the Phytophthora disease. |
