Researchers report a simple method to manufacture biocompatible structural colors using only melanin and silica. The silica shell provides a buffer layer of tunable thickness that allows customization of the particular color, offering the potential to fabricate a new breed of long-lasting pigments that don’t fade.
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CTT reader Bart Kilinski pointed out that several of the substances listed in the tattoo ink infographic above are indeed toxic substances—particularly cinnabar and cadmium and chrome oxides. “Surely those aren’t used in tattooing,” Kilinski comments.
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You can’t beat the summer sun. Or can you? With new advanced sunscreen molecules, you might be able to enjoy the rays and protect your skin at the same time.
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