A simple structural tweak has dramatically enhanced the colour clarity and stability of heavy metal-free blue quantum dots.

Like mercury, cadmium, and other heavy-metal ions ... For comparison, beta-particles (electrons) are capable of penetrating about a centimetre of tissue, while gamma-radiation (high energy photons) ...

Mar. 25, 2025 — This a robot can walk, without electronics, and only with the addition of a cartridge of compressed gas, right off the 3D-printer. It can also be printed in one go, from one ...

School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China ...