from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. That disrupts hydrogen bonds, especially within or between biological molecules
Sorry, no etymologies found.
The solutes are called chaotropic after their property of disordering cellular macromolecules.
The research team first confirmed that glycerol, a solute often used to preserve cells at low temperatures in the laboratory, becomes chaotropic when present in high concentrations.
They then grew extremophiles on a medium supplemented with either chaotropic or kosmotropic solutes (which stabilize macromolecules rather than destabilize them).
Hallsworth said the findings mean the so-called Goldilocks Zone may be much more extensive than previously envisaged because many cold planets and moons contain all the necessary ingredients for making chaotropic solutes.
Starting with four types of xerophilic fungi (aerobic extremophiles that thrive in environments with little water), the scientists found that at 30°C the fungi grew well in the presence of both chaotropic and kosmotropic solutes, but at 1. 7°C the fungi on media supplemented with chaotropes grew better than those on kosmotropes, with some of the latter showing zero growth.