Researchers at Drexel University’s Nanomaterials Institute have demonstrated that a class of thin, two-dimensional material has the potential to block electromagnetic radiation (EM), potentially laying the groundwork for a new generation of shielding materials.
According to a paper published in December in the scientific journal Carbon, the researchers found that one particular MXene, titanium carbonitride, provides an excellent shield against EM radiation. They determined that MXene not only blocks EM radiation but absorbs EM signals rather than merely reflecting them back. In their testing, samples of cotton and linen dipped into a MXene solution including titanium carbonitride blocked more than 99.9% of EM signals.
The Drexel University researchers also found that the MXene produces a durable coating that doesn’t require chemical additives or other pre-treatment or post-treatment processing. Further, MXene-treated materials lose only small amounts of their shielding effectiveness over time.