Metallic Glass Coating for Improved Needle Tattooing Performance in Reducing Trauma: Analysis on Porcine and Pig Skins

    November 2020 in “ Scientific Reports ”
    Jinn P. Chu, Wen-Che Liao, Pakman Yiu, Ming‐Tang Chiou, Kuan‐Hsuan Su
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    TLDR Metallic-glass coated needles reduce skin trauma and improve tattoo quality.
    The study investigated the effects of metallic-glass (MG) coatings on tattoo needles, finding that MG-coated needles significantly reduced skin trauma and improved tattoo quality. Experiments on pork samples and six live pigs showed that MG-coated needles reduced tissue adhesion and pigment spread, resulting in narrower, higher-density tattoo lines. Histopathological analysis revealed that wounds from MG-coated needles healed faster, closing within 2 hours, while those from bare needles remained open and inflamed for days. The MG coating reduced pigment spread by up to 57%, suggesting potential for high-resolution tattooing.
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