Title: Breakthroughs in Scalable Fabrication of Optical Metamaterials and Printable Meta-Assemblies for Advanced Color Applications
- A joint research team has achieved a breakthrough in the scalable fabrication of optical metamaterials, enabling the production of multiscale hierarchical structures through a continuous roll-to-roll manufacturing process.
- The team, led by researchers from the Institute of Chemistry of the Chinese Academy of Sciences and the National University of Singapore, developed a printable meta-assembly strategy using...
- The related findings were published in the journal Nature on Wednesday, April 22, 2026.
A joint research team has achieved a breakthrough in the scalable fabrication of optical metamaterials, enabling the production of multiscale hierarchical structures through a continuous roll-to-roll manufacturing process. This innovation addresses long-standing challenges in creating metamaterials that integrate nanoscale and microscale features, offering a pathway toward eco-friendly coloration, intelligent displays, and information security applications.
The team, led by researchers from the Institute of Chemistry of the Chinese Academy of Sciences and the National University of Singapore, developed a printable meta-assembly strategy using low-cost polystyrene nanoparticles embedded in a polydimethylsiloxane matrix. This forms a nanolattice-based microconcave optical interface that enables precise integration of guided-wave and reflected-wave dispersion and interference, resulting in synergistic colouration effects.
The related findings were published in the journal Nature on Wednesday, April 22, 2026. The researchers independently developed a roll-to-roll additive nano-printing device, described as a first-of-its-kind manufacturing solution that overcomes the trade-off among low cost, large-scale production, and personalized customization of optical metamaterials.
According to Song Yanlin, a researcher at the Institute of Chemistry, Chinese Academy of Sciences, the technology allows production “as simple as printing newspapers” while enabling on-demand printing to tailor optical properties for each metamaterial pixel unit — an unprecedented capability for customized micro-nano optics research.
The achievement represents a deep convergence of materials science, micro-nano optics, and advanced manufacturing. The roll-to-roll technology dismantles high-cost barriers, boosts mass-production efficiency, and allows metre-scale meta-assembly prints with single-pixel customization, spanning seven orders of magnitude in length from nanoscale building blocks.
The vibrant prints exhibit controlled colour separation and integration performances, along with environmental stability, showing potential for applications in eco-friendly colouration, intelligent displays, and information security. The team aims to develop next-generation high-sensitivity optical sensing chips based on this technology in future work.