Researchers at the University of Liège (ULiège) have developed a pioneering, sustainable method for producing cadmium-based quantum dots (QDs) in water using a biocompatible chalcogen source. This fully aqueous, continuous flow process avoids harmful organic solvents and offers enhanced safety, scalability, and environmental performance. A collaboration led to the creation of a water-soluble chalcogen transfer agent inspired by peptide chemistry. Real-time Raman spectroscopy enabled detailed analysis of reaction mechanisms. The new system improves productivity while reducing waste and energy use. Although cadmium QDs are efficient, their toxicity remains a concern, prompting the team to explore greener alternatives. This innovation marks a significant step toward responsible, large-scale nanomaterial production.

A research team has developed a groundbreaking two-dimensional (2D) phase-transition memristor leveraging intrinsic ion migration for ultra-low power consumption and high endurance. Unlike conventional memristors that suffer from crystal damage and high energy demands, the newly developed Intrinsic Ion Migration (IIM) memristor eliminates the need for external ion intercalation. This innovative approach results in an unprecedented SET power consumption of just 1 μW at 100 mV and an ultrafast switching speed of 80 ns, positioning it as a promising candidate for next-generation neuromorphic computing and in-memory processing.