Scientists have developed a new machine learning system that could help preserve vaccines, blood, and other medical treatments.  The research, published in Nature Communications, was led by the University of Warwick and the University of Manchester. The AI system helps identify molecules called cryoprotectants – compounds that prevent damage when freezing biological materials.  Cryoprotectants are special substances that help protect living cells and tissues from damage when they’re frozen. They work by preventing the formation of harmful ice crystals, which essentially break tissue apart when you freeze it. They also help cells maintain their structure in extreme cold. These compounds…