Answers are grounded in this paper and cite their sources.
Transferring flexible and scalable nano-pillar arrays on a variety of unconventional substrates, including fabric, paper, and metals, is achieved by a single-step replication process using UV-curable polymers. Local alteration of the contact angle on the nanopillar arrays by LBL films creates selectively hidden images. They can be revealed by the breath and used as an innovative anti-counterfeit technology.
No takes yet. Share an insight, caveat, or question.
Lee et al. (2014) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: