Food tattoo detects toxins

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This paper demonstrates a gold island film (GIF) coated tattoo paper as acid free ‘green’ fabrication of transferable plasmonic patterns for surface enhanced Raman spectroscopy (SERS) based screening of food toxins. A tattoo paper, with a water soluble release layer, was optimally sputter coated with a gold pattern which can be transferred onto any real fruit surface to enable in situ molecular detection (Thiabendazole, TBZ, used here) from the surface of the fruit (orange used here).

A SERS tattoo for in situ, ex situ, and multiplexed detection of toxic food additives

Wang, C. et al, Sensors and Actuators B: Chemical (2018)