Moderate Point: Balanced Entropy and Enthalpy Contributions in Soft Matter

@article{He2015ModeratePB,
  title={Moderate Point: Balanced Entropy and Enthalpy Contributions in Soft Matter},
  author={Baoji He and Yanting Wang},
  journal={arXiv: Soft Condensed Matter},
  year={2015}
}
Various soft materials share some common features, such as significant entropic effect, large fluctuations, sensitivity to thermodynamic conditions, and mesoscopic characteristic spatial and temporal scales. However, no quantitative definitions have yet been provided for soft matter, and the intrinsic mechanisms leading to their common features are unclear. In this work, from the viewpoint of statistical mechanics, we show that soft matter works in the vicinity of a specific thermodynamic state… 

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References

SHOWING 1-10 OF 24 REFERENCES
Entropy‐enthalpy compensation: Perturbation and relaxation in thermodynamic systems
The response of an equilibrium molecular system to perturbations depends on its environmental constraints. For example, the response of an equilibrium P, V, T system to a small temperature
Entropy—enthalpy compensation: Fact or artifact?
  • K. Sharp
  • Physics
    Protein science : a publication of the Protein Society
  • 2001
TLDR
This model shows that the most likely behavior to be seen is linear S‐H compensation over a rather limited range of perturbations with a compensation temperature Tc = dΔH/dΔS within 20% of the experimental temperature.
Entropy-enthalpy compensation: role and ramifications in biomolecular ligand recognition and design.
TLDR
The evidence for severe compensation is found to be weak in light of the large magnitude of and correlation between errors in experimental measurements of entropic and enthalpic contributions to binding, though a limited form of compensation may be common.
Enthalpy–entropy compensation phenomena in water solutions of proteins and small molecules: A ubiquitous properly of water
TLDR
It is tentatively concluded that the pattern is real, very common and a consequence of the properties of liquid water as a solvent regardless of the solutes and the solute processes studied, and that liquid water plays a direct role in many protein processes and may be a common participant in the physiological function of proteins.
Entropy-enthalpy compensation : Conformational fluctuation and induced-fit
A localized change in a protein, which occurs as a result of either ligand binding or single amino acid substitution, necessarily encounters the conformational fluctuation of the rest of the protein.
Crowding induced self-assembly and enthalpy-entropy compensation.
TLDR
A general virial expansion is developed to describe the influence of molecular additives on the equilibrium self-assembly of proteins or other supermolecularly assembling species M in solution, which finds the increased stability of the assembled form of M is progressively compensated by attractive interactions that alter the enthalpy of assembly.
Protein stabilization by macromolecular crowding through enthalpy rather than entropy.
TLDR
The results show that for a correct dissection of the cosolute-induced changes of the free energy into its enthalpic and entropic contributions, the temperature dependence of the heat capacity change needs to be explicitly taken into account.
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