Researchers develop photochromic active colloids for the development of new smart materials

https://phys.org/news/2023-05-photochromic-colloids-smart-materials.html

"wavelength-selective intelligent colloid light-controlled multi-dimensional phase segregation... dynamic photochromic nanoclusters mixing cyan, magenta and yellow microbeads... light-induced vertical phase stratification... enriched colored microbeads corresponding to incident spectrum... particle–particle interaction controlled combining incident light different wavelengths and intensities... mixing TiO2 microbeads species with dyes of different absorption spectra on-demand particle segregation realized"

Related: Metal nanoclusters are tunable for many applications from catalysis to biomedicine, says study

https://phys.org/news/2023-06-metal-nanoclusters-tunable-applications-catalysis.html