A New Anti-counterfeiting Feature Relying on Invisible Non-toxic Fluorescent Carbon Dots


Fluorescent patterning has attracted a great deal of attention owing to its potential applications in different areas in particular anti-counterfeiting technology. Fluorescent carbon dots (CDs) as a type of fluorescent dyes can be used in invisible patterning due to their remarkable optical properties. This study attempts to introduce green fluorescent CDs as a promising factor in textile coding. Accordingly, a new green source opted to prepare CDs using the hydrothermal approach. Moreover, toxicity assays were performed to prove the safety of these carbon-based nanoparticles for humanity. They were also conjugated with cotton fiber successfully. Therefore, these green prepared CDs are promising for security labeling in the textile industry.

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Special thanks go to Professor Vlasov Igor for supporting us with helpful comments that greatly improved the manuscript.

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Correspondence to Neda Esfandiari.

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Fatahi, Z., Esfandiari, N. & Ranjbar, Z. A New Anti-counterfeiting Feature Relying on Invisible Non-toxic Fluorescent Carbon Dots. J. Anal. Test. 4, 307–315 (2020). https://doi.org/10.1007/s41664-020-00149-6

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  • Green carbon dots
  • Cytotoxicity
  • Anti-counterfeiting
  • Cotton fiber