Organic Thermoelectric Phase Change Material

So I was designing some aliens who exhale colder air that they take in and one person gave me a really great suggestion, using phase change materials in the creature's make up to absorb the heat from the air. When looking into phase change materials I saw that GeSb$_2$Te$_4$ is one that can also hold data (not sure if that would come in handy or not) but my though process was, hey Germanium is similar to carbon and if silicon being similar to carbon and can be incorporated into some micro organisms maybe Germanium can, while bonded with the other two elements in order to make the phase change creature possible.

So my question is can GeSb$_2$Te$_4$ be used as the basis for a biochemistry to reasonably accomplish this goal, and if not would their be a better alternative (preferably using hydrocarbons)?

posted almost 7 years ago

Amoeba‭

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