Optical and physical properties of wet-spun films of Na-hyaluronate. Evidence of a phase transition.
The refractive indices, water content, and volume of wet-spun films of Na-hyaluronate have been measured as a function of relative humidity (rh). These data are used with the Lorentz-Lorenz formula to determine the optical polarizabilities of Na-hyaluronate parallel and perpendicular to the helical axis. The analysis reveals a drop in the optical polarizabilities of approximately 20% between 80 and 88% rh, indicating a phase transition.
Flowers
M R
MR
Department of Physics and Astronomy, University of Toledo, Ohio 43606.
Marlow
R L
RL
Lee
S A
SA
Lavalle
N
N
Rupprecht
A
A
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D006820:Hyaluronic Acid / Q000737:chemistry*; D007202:Indicators and Reagents; D008433:Mathematics; D008962:Models, Theoretical; D008969:Molecular Sequence Data
D007202:Indicators and Reagents; D006820:Hyaluronic Acid