This is bismuth — a natural chemical element that chemically resembles arsenic and antimony ... with beautifully iridescent crystals. The crystal structure of bismuth is noteworthy.

Black arsenic (B-As), as a homolog of phosphorus, shares a similar crystal structure with BP and is expected to exhibit excellent electrical and optical performance, with anticipated high carrier ...

The research team placed carbon dots coated with L-cysteine, which selectively binds well with arsenic, at the interface where water meets the liquid crystal. As a result, if arsenic is present in ...