First order phase transition and evidence for frustrations in polyampholytic gels

被引：67

作者：

Takeoka, Y ^{[1
]}

Berker, AN

Du, R

Enoki, T

Grosberg, A

Kardar, M

Oya, T

Tanaka, K

Wang, GQ

Yu, XH

Tanaka, T

机构：

[1] MIT, Dept Phys, Cambridge, MA 02139 USA

[2] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.82.4863

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Polyampholyte gel, frustrated by the conflicting interactions between its positive and negative monomers, c-an 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. [S0031-9007(99)09334-5].

引用

页码：4863 / 4865

页数：3

共 18 条

[1] REENTRANT PHASE-TRANSITION OF N-ISOPROPYLACRYLAMIDE GELS IN MIXED-SOLVENTS [J].