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http://dx.doi.org/10.5012/bkcs.2014.35.9.2645

Ultrafine Copper Nanoparticles Exhibiting a Powerful Antifungal/Killing Activity Against Corticium Salmonicolor  

Cao, Van Du (Department of Chemical and Food Engineering, Lac Hong University)
Nguyen, Phuong Phong (Department of Chemistry, University of Science, National University of Hochiminh City)
Khuong, Vo Quoc (Department of Chemistry, University of Science, National University of Hochiminh City)
Nguyen, Cuu Khoa (Department of Materials and Pharmaceutical chemistry, Institute of Applied Materials Science, Vietnam Academy of Science and Technology)
Nguyen, Xuan Chuong (Department of Chemical and Food Engineering, Lac Hong University)
Dang, Cap Ha (Department of Materials and Pharmaceutical chemistry, Institute of Applied Materials Science, Vietnam Academy of Science and Technology)
Tran, Ngoc Quyen (Department of Materials and Pharmaceutical chemistry, Institute of Applied Materials Science, Vietnam Academy of Science and Technology)
Publication Information
Bulletin of the Korean Chemical Society / v.35, no.9, 2014 , pp. 2645-2648 More about this Journal
Abstract
In this paper ultrafine copper nanoparticles (CuNPs) were prepared from copper salt via chemical reduction method with sodium citrate dispersant and polyvinylalcol (PVA) capping polymer. The colloidal CuNPs were characterized by using UV-Visible spectroscopy, Transmission Electron Microscopy (TEM), and X-ray Diffraction (XRD) techniques. Our obtained results indicated that the CuNPs were produced ranging from 2 to 4 nm in diameter. The colloidal solution at 7 ppm of CuNPs exhibited a powerful antifungal activity against Corticium salmonicolor (C. Salmonicolor). Fungal killing assays showed colloid solutions containing 10 ppm of CuNPs killed entirely the cultured fungus. A highly killing activity against the fungus was also performed when the CuNPs were sprayed on pink disease-infected rubber trees. These positive results may offer a great potential to produce CuNPs-based eco-fungicide for pink disease.
Keywords
Ultrafine CuNPs; Sodium citrate; Polyvinylalcol; Corticium salmonicolor; Pink disease;
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