Here, iron oxide nanoparticles firmly attached to the surface of the wood cell walls by alternating incubation cycles with ferrous sulfate and sodium carbonate solutions. The production process involved the removal of lignin from natural wood followed by mineralization to give the woodblock its electromagnetic shielding properties. Her research team used basswood - a porous structured wood - as a lightweight 3D scaffold into which magnetic iron oxide nanoparticles were incorporated. Professor Hongli Zhu from Northeastern University in Boston, USA, had perhaps a radical new idea: to create lightweight, magnetic wood for electromagnetic interference shielding. Shielding is particularly effective, but currently used shielding materials can be cumbersome and heavy, limiting how and when they can be used.
But electromagnetic interference can be eliminated by various measures including strategies such as earthing, galvanic coupling, filters, and shielding.
The rapid development of communications technologies and networks has made electromagnetic interference and radiation an emerging environmental pollutant. In the case of data transfer, these effects can range from an increase in the error rate to a total loss of data. Here, the interference can reduce the performance of the device or even bring it to a standstill. At the same time, every device is also a receiver of interference. Every electrical device causes electromagnetic interference as all charge carriers that are accelerated or decelerated emit electromagnetic fields that spread through space.
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