All-in-one nanoprinting approach for the synthesis of unclonable anti-counterfeiting nanofilms
Processes and Methods (incl. Screening) : Large Scale Production
Scientists from the Max-Planck-Institute of Colloids and Interfaces have developed a nanoprinting-assisted flash synthesis approach that generates fluorescent nanofilms with physical unclonable function micropatterns in milliseconds. This all-in-one approach yields quenching-resistant carbon dots in solid films, directly from simple monosaccharides. Moreover, they established a nanofilm library comprising 1,920 experiments, offering conditions for various optical properties and microstructures. They produced 100 individual physical unclonable function patterns exhibiting near-ideal bit uniformity (0.492 ± 0.018), high uniqueness (0.498 ± 0.021) and excellent reliability (>93%). These unclonable patterns can be quickly and independently read out by fluorescence and topography scanning, greatly improving their security. An open-source deep-learning model guarantees precise authentication, even if patterns are challenged with different resolutions or devices.
Zhang et al. (2023) Nature Nanotechnology. DOI: 10.1038/s41565-023-01405-3.
- Ref.-No.: 0401-6646-MG (892.6 KiB)
A priority application was filed in 2023.
Dr. Mareike Göritz
Phone: +49 89 / 29 09 19-32