Journal of Electronic Materials

, Volume 46, Issue 6, pp 3381–3389 | Cite as

Functional Iron Oxide–Silver Hetero-Nanocomposites: Controlled Synthesis and Antibacterial Activity

  • Vu Thi Trang
  • Le Thi Tam
  • Nguyen  Van Quy
  • Tran Quang Huy
  • Nguyen Thanh Thuy
  • Doan Quang Tri
  • Nguyen Duy Cuong
  • Pham Anh Tuan
  • Hoang  Van Tuan
  • Anh-Tuan Le
  • Vu Ngoc Phan


Iron oxide-silver nanocomposites are of great interest for their antibacterial and antifungal activities. We report a two-step synthesis of functional magnetic hetero-nanocomposites of iron oxide nanoparticles and silver nanoparticles (Fe3O4-Ag). Iron oxide nanoparticles were prepared first by a co-precipitation method followed by the deposition of silver nanoparticles via a hydrothermal route. The prepared Fe3O4-Ag hetero-nanocomposites were characterized by x-ray diffraction, transmission electron microscopy, high resolution transmission electron microscopy and vibrating sample magnetometry. Their antibacterial activities were investigated by using paper-disc diffusion and direct-drop diffusion methods. The results indicate that the Fe3O4-Ag hetero-nanocomposites exhibit excellent antibacterial activities against two Gram-negative bacterial strains (Salmonella enteritidis and Klebsiella pneumoniae).


Fe3O4-Ag hetero-nanocomposites antibacterial activity Salmonella enteritidis Klebsiella pneumoniae 


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Copyright information

© The Minerals, Metals & Materials Society 2017

Authors and Affiliations

  1. 1.Advanced Institute for Science and Technology (AIST)Hanoi University of Science and Technology (HUST)HanoiVietnam
  2. 2.Vietnam Military Medical UniversityHanoiVietnam
  3. 3.International Training Institute for Materials Science (ITIMS)Hanoi University of Science and Technology (HUST)HanoiVietnam
  4. 4.National Institute of Hygiene and Epidemiology (NIHE)HanoiVietnam
  5. 5.Vietnam Metrology InstituteHanoiVietnam
  6. 6.Ministry of Science and Technology of VietnamHanoiVietnam

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