The beloved Olympic mascots are color-changing critters that are vulnerable to climate change

CORTINA D'AMPEZZO, Italy (AP) — The pair of animals chosen as mascots of the Olympic and Paralympic Winter Games are stoats — weasel-like creatures that are at risk because of climate change. One of ...
Nanowerk

A color-changing microneedle sensor made from food ingredients can detect spoilage through sealed packaging

A food-safe gelatin microneedle sensor pierces sealed packaging and changes color as food spoils, offering consumers a ...