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Author

Karthik C Sinha

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Aug 2026

Coil-helix transition in macromolecules. II. Changes in chain size.

Macromolecular coil-to-helix transitions simultaneously modify local geometry and persistence length, driving complex changes in overall chain size. Here, we apply the wormlike (persistent) chain model to both coil and helical fragments to examine how the degree of helicity, θ, and average helical fragment length, kh,...

Karthik C Sinha, Alexey A. Gavrilov, Artem M. Rumyantsev · 1 citation
Aug 2026

Coil-helix transition in macromolecules. I. Minimal model.

This work presents a minimal coarse-grained molecular dynamics model for the coil-helix transition in polymers. We demonstrate that the addition of a Morse potential to a freely jointed chain with volume and bond potentials is sufficient to reproduce the essential thermodynamic features of the transition. From the simu...

Karthik C Sinha, Alexey A. Gavrilov, Artem M. Rumyantsev · 1 citation

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