Fig. 4: Chemical spaces 1–3 with fitness functions applied to several generations resulting in gold nanoparticles evolving from seeds to higher complexity particles.
From: A nanomaterials discovery robot for the Darwinian evolution of shape programmable gold nanoparticles
a Evolution of the median fitness per generation for the nanospheres evolution. b Comparison between UV-Vis spectrum of simulated spheres from commercially available sources and the best spheres obtained with the platform. c TEM image of the ≈80 nm AuNSs that correspond to the UV-Vis spectrum of the best spheres obtained with the platform. d Evolution of the median fitness per generation for the nanorods evolution. e Comparison between UV-Vis spectrum of rods described in the literature and the highest fitness AuNR obtained with the platform. f TEM image of the AuNRs that correspond to the UV-Vis spectrum of the best nanorods obtained with the platform. g Evolution of the median fitness per generation for the expanded search attempting to achieve a single peak at 580 nm. h Comparison between UV-Vis target peak wavelength region (pink) set by us and the spectrum with highest similarity obtained with the platform. i TEM image of the octahedral shaped gold nanorods that correspond to the highest similarity UV-Vis spectrum obtained with the platform. Error bars represent the standard deviation of the fitness values for a given generation.
