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Comments on the "ordinary-extraordinary phase transition" of poly(lysine)

Schmitz, Kenneth S. ; Lu, Mei ; Singh, Narinder ; Ramsay, Donald J.

Biopolymers, 1984-09, Vol.23 (9), p.1637-1646 [Periódico revisado por pares]

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Título:
Comments on the "ordinary-extraordinary phase transition" of poly(lysine)
Autor: Schmitz, Kenneth S. ; Lu, Mei ; Singh, Narinder ; Ramsay, Donald J.
Assuntos: Biological and medical sciences ; Fundamental and applied biological sciences. Psychology ; Molecular biophysics ; Physico-chemical properties of biomolecules
É parte de: Biopolymers, 1984-09, Vol.23 (9), p.1637-1646
Notas: ark:/67375/WNG-F4NMXSFV-D
ArticleID:BIP360230903
istex:944EA4D76C95411E71921E36FA8BBFE273E8C980
Descrição: The “ordinary–extraordinary phase transition” of poly(lysine), first reported by Lin et al. [(1978) Biopolymers 17, 1041–1064], has been reexamined as a function of the data collection interval (Δt) and scattering angle (θ). These data suggest that the relaxation domains “split” as the ionic strength is lowered through the transition region. In contrast, fluorescence photobleaching recovery data of Ware and coworkers (personal communication) indicate the tracer diffusion coefficient is not sensitive to the “ordinary–extraordinary phase transition.” The apparent discrepancy between these two techniques is here proposed to be due to small ion effects on both the dynamics and the scattering power of the polyelectrolytes.
Editor: Hoboken: Wiley Subscription Services, Inc., A Wiley Company
Idioma: Inglês

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