TLDR Human hair affects millimeter radiowaves due to its keratin content.
The study measured the specific density of human hairs, primarily composed of keratin, to determine the dielectric permeability of hairs based on the attenuation of millimeter radiowaves. It accounted for multiple reflections of waves at the boundary of the hair layer.
30 citations
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February 2022 in “Pharmaceutics” 3D bioprinting improves wound healing by precisely creating scaffolds with living cells and biomaterials, but faces challenges like resolution and speed.
264 citations
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January 2008 in “Journal of biomedical optics” Zinc oxide nanoparticles in sunscreen do not penetrate deep into the skin.
12 citations
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September 2013 in “BMC Biophysics” Keratin filaments' elasticity is influenced by their terminal domains and surrounding medium.
29 citations
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June 2014 in “Drug delivery” The new formulation improved the skin absorption of the drug Thiocolchicoside.
November 2022 in “Cureus” New biomaterial treatments for baldness show promise, with options depending on patient needs.