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Tattoo - PubMed

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Last Updated: 25 July 2022

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In vitro analysis of catalase and superoxide dismutase mimetic properties of blue tattoo ink.

Tattoo inks are made up of a variety of bioactive chemicals with mixed biological effects that are not properly investigated. Tattoos have been attributed to oxidative stress, but a recent N-of-1 report showed that blue tattoos can be correlated with reduced local skin oxidative stress. The present study was designed to explore the attributes of the blue tattoo ink, particularly the catalase and superoxide dismutase mimetic properties that have been attributed to copper phthalocyanine, the key BTI component. In the experiment, Intenzeu2122 Persian blue BTI was used. In vitro, CuPC-based tattoo ink PB and both its blue and white pigment-enriched fractions display CAT and SOD-mimetic activity, with effect sizes showing a substantial dependence on the biochemical environment. BTI-based BTI can mimic antioxidant enzymes, with CuPC-based BTI mimicing antioxidant enzymes, but chemical constituents other than CuPC seem to be at least partially responsible for the BTI redox-modulating properties.

Source link: https://doi.org/10.1080/10715762.2022.2102976


In Vivo Visualization of Tattoo Particles Using Multiphoton Tomography and Fluorescence Lifetime Imaging.

The present pilot study uses multiphoton tomography as a diagnostic tool to determine tattooed human skin's morphological and metabolic status at patient bedside. Over time, the development course of tattoo particles can be mapped. After injection of tattoo ink into human skin, tattoo ink was found by a multiphoton tomography coupled with fluorescence lifetime imaging, a useful technique for in vivo visualization of tattoo pigments as well as the analysis of quantitative and qualitative skin changes.

Source link: https://doi.org/10.1111/exd.14646


A Personalized Electronic Tattoo for Healthcare Realized by On-the-Spot Assembly of an Intrinsically Conductive and Durable Liquid-Metal Composite.

Conventional electronic skins are a line of thin-film electronics that are mainly manufactured in labs or factories, but are impractical for rapid and simple customization for personalized healthcare. Here's a new line of e-tattoos that can be used directly on the skin by a one-step coating with various shapes at multi-scale, depending on the user's needs without a substrate.

Source link: https://doi.org/10.1002/adma.202204159


"For Asia Market Only": A Green Tattoo Ink between Safety and Regulations.

The green tattoo inks Green Concentrate by Eternal were analyzed in Eastern countries due to increasing tattoo usage in Eastern countries and general concerns over tattoo ink composition and safety, and the assumption that only the former falls under a composition control. The estimated relative pigment load and element traces were also estimated. Both the European and Asian inks are based on the same pigment, PG7, which is limited in Europe, but at different loads. We found that the European and Asian inks are based on the same pigment, PG7, which is restricted in Europe, but at different times. Moreover, they have different physical-chemical characteristics, with the European ink being more hydrophilic and the Asian more hydrophobic. In addition, the Asian ink contains dangerous additives for the solubilization of hydrophobic matrices and by-products of the phthalocyanine synthesis. To a greater extent in the European ink, teratogenic phthalates, as well as chlorinated teratogenic and carcinogenic compounds traditionally used for laser treatment for removal purposes are present.

Source link: https://doi.org/10.3390/molecules27113491

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions