Scaling form of viscosity at all length-scales in poly(ethylene glycol) solutions studied by fluorescence correlation spectroscopy and capillary electrophoresis

Hołyst, Robert; Bielejewska, Anna; Szymański, Jędrzej; Wilk, Agnieszka; Patkowski, A.; Gapiński, Jacek; Żywociński, Andrzej; Kalwarczyk, Tomasz; Kalwarczyk, Ewelina; Tabaka, Marcin; Ziębacz, Natalia; A. Wieczorek, Stefan

doi:10.1039/b908386c

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Scaling form of viscosity at all length-scales in poly(ethylene glycol) solutions studied by fluorescence correlation spectroscopy and capillary electrophoresis

Published in Physical Chemistry Chemical Physics • Jan 1, 2009

Authors:

Robert Hołyst

Anna Bielejewska

Jędrzej Szymański

Abstract

We measured the viscosity of poly(ethylene glycol) (PEG 6000, 12,000, 20,000) in water using capillary electrophoresis and fluorescence correlation spectroscopy with nanoscopic probes of different diameters (from 1.7 to 114 nm). For a probe of diameter smaller than the radius of gyration of PEG (e.g...

Subject

Radius of gyration

Fluorescence correlation spectroscopy

Chemistry

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