Synthesis and characterization of Ag/Fe3O4 electromagnetic shielding particles

In Situ Immobilized Silver Nanoparticles on Rubia tinctorum Extract-Coated Ultrasmall Iron Oxide Nanoparticles: An Efficient Nanocatalyst with Magnetic Recyclability for Synthesis of Propargylamines by A3 Coupling Reaction

“…47 Li et al utilized an electroless silver plating method to synthesize Ag/Fe 3 O 4 MNPs via bringing a solution of AgNO 3 and formaldehyde (methanal) in contact with Fe 3 O 4 NPs. 48 The point is that these introduced preparation methods have numerous disadvantages such as operation at high temperatures and pressures, comprising complex chemical preparation, and using expensive surfactants. Consequently, these approaches should be substituted with an alternative simple, fast, and low-cost method, such as plant-mediated NP preparation.…”

“…Then, the obtained phenyl-ether mixture containing colloidal Ag NPs, Fe­(acac) 3 , oleic acid, 1,2-hexadecanediol, and oleyamine was heated to obtain heterodimer Ag–Fe 3 O 4 NPs . Li et al utilized an electroless silver plating method to synthesize Ag/Fe 3 O 4 MNPs via bringing a solution of AgNO 3 and formaldehyde (methanal) in contact with Fe 3 O 4 NPs . The point is that these introduced preparation methods have numerous disadvantages such as operation at high temperatures and pressures, comprising complex chemical preparation, and using expensive surfactants.…”

Enhanced antibacterial performance of Fe3O4–Ag and MnFe2O4–Ag nanocomposites

“…In addition, the introduction of silver nanoparticles into Fe 3 O 4 enhances the biological activity of Ag NPs, but many studies have shown that the recovery of silver-based antibacterial agents is a general problem since they have a potential toxicity for both human and aqua systems and thus removing them from the disinfected media is efficiently required. The striking feature of Fe 3 O 4 nanocomposites combined with silver nanoparticles is that they can be easily separated using an external magnet, providing a simple separation of the nanocomposite [2,15]. Finally, using these materials for killing bacteria under a magnetic field, we can expect a short sample preparation time and an easy cleanup procedure.…”

Electromagnetic response from composite radiomaterials based on multiwall carbon nanotubes at microwave frequencies

“…However, a lot of materials working well at low frequency lose their properties and stop working at microwave range. For further miniaturization of devices it is necessary to use new materials that can lessen size and weight of radioelements [1], provide electromagnetic compatibility of working units of radioelectronic equipment [2] and reduce the influence of radiation from these devices on the human body [3,4]. Therefore, interest in new radio materials which have prospects of application in microwave devices is growing.…”