Unraveling fluctuation in gelatin and monovalent salt systems: coulombic starvation.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 36942941.
- Also identified by DOI 10.1039/d3sm00080j.
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Abstract
Fluctuations play a key role in biological systems. Here, fluctuations in gelatin intensify with increasing salt concentration. We find a redistribution of hydrogen bonds in protein-salt systems due to unfulfilled hydration of the charges of gelatin and salt-ions, termed as coulombic starvation. This yielded three regions; no starvation, starvation of gelatin, and both gelatin-salt. The system reaches equilibrium with all charges being partially hydrated. This will aid in interpreting protein-metal ion interactions and designing biomaterials.