First order phase transition and evidence for frustrations in polyampholytic gels

Takeoka Yukikazu; Berker A. Nihat; Du Rose; Enoki Takashi; Grosberg Alexander; Kardar Mehran; Oya Taro; Tanaka Kazunori; Wang Guoqiang; Yu Xiaohong; Tanaka Toyoichi

doi:10.1103/PhysRevLett.82.4863

First order phase transition and evidence for frustrations in polyampholytic gels

Takeoka Yukikazu, Berker A. Nihat, Du Rose, Enoki Takashi, Grosberg Alexander, Kardar Mehran, Oya Taro, Tanaka Kazunori, Wang Guoqiang, Yu Xiaohong, Tanaka Toyoichi

Research output: Contribution to journal › Article › peer-review

Abstract

Polyampholyte gel, frustrated by the conflicting interactions between its positive and negative monomers, can undergo a sharp discontinuous phase transition driven by changing either gel composition or solvent quality and/or permeability. This finding completes the investigation of all four major interactions involved in the biomolecular machinery with respect to their role in the behavior of polymer gels, considered here as a model of biopolymer system. The result also sheds light on the possible role of frustrations in biomolecular systems, such as proteins.

Original language	English (US)
Pages (from-to)	4863-4865
Number of pages	3
Journal	Physical Review Letters
Volume	82
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.82.4863
State	Published - 1999

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.82.4863

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AU - Yukikazu, Takeoka

AU - Nihat, Berker A.

AU - Rose, Du

AU - Takashi, Enoki

AU - Alexander, Grosberg

AU - Mehran, Kardar

AU - Taro, Oya

AU - Kazunori, Tanaka

AU - Guoqiang, Wang

AU - Xiaohong, Yu

AU - Toyoichi, Tanaka

PY - 1999

Y1 - 1999

N2 - Polyampholyte gel, frustrated by the conflicting interactions between its positive and negative monomers, can undergo a sharp discontinuous phase transition driven by changing either gel composition or solvent quality and/or permeability. This finding completes the investigation of all four major interactions involved in the biomolecular machinery with respect to their role in the behavior of polymer gels, considered here as a model of biopolymer system. The result also sheds light on the possible role of frustrations in biomolecular systems, such as proteins.

AB - Polyampholyte gel, frustrated by the conflicting interactions between its positive and negative monomers, can undergo a sharp discontinuous phase transition driven by changing either gel composition or solvent quality and/or permeability. This finding completes the investigation of all four major interactions involved in the biomolecular machinery with respect to their role in the behavior of polymer gels, considered here as a model of biopolymer system. The result also sheds light on the possible role of frustrations in biomolecular systems, such as proteins.

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

ER -

First order phase transition and evidence for frustrations in polyampholytic gels

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