Polymers (Mar 2021)

Facile Synthesis of Carboxymethyl Cellulose Coated Core/Shell SiO<sub>2</sub>@Cu Nanoparticles and Their Antifungal Activity against <i>Phytophthora capsici</i>

  • Nguyen Thi Thanh Hai,
  • Nguyen Duc Cuong,
  • Nguyen Tran Quyen,
  • Nguyen Quoc Hien,
  • Tran Thi Dieu Hien,
  • Nguyen Thi Thanh Phung,
  • Dao Khac Toan,
  • Nguyen Thi Thu Huong,
  • Dang Van Phu,
  • Tran Thai Hoa

Journal volume & issue
Vol. 13, no. 888
p. 888


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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 [email protected] nanoparticles (NPs) were synthesized by a simple and effective chemical reduction process. The initial SiO2 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 [email protected] nanoparticles with an average size of ~19 nm were surrounded by CMC. The results indicated that the [email protected]@CMC suspension was a homogenous morphology with a spherical shape, regular dispersion and good stability. Furthermore, the multicomponent [email protected]@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.