Evaluation of viscosities of aqueous two-phase systems containing protein.
The dynamic viscosities of aqueous polyethylene glycol, aqueous bovine serum albumin, and polyethylene glycol-bovine serum albumin-water solutions were measured at temperatures of 15, 20, 25, 30 and 35 degree C. To estimate the viscosity values of polyethylene glycol-bovine serum albumin-water solutions, a one parameter Grunberg-like model which was satisfactorily used earlier by the present author for polyethylene glycol-dextran-water solutions was employed. The disposable parameter a for our temperature range was estimated as 3.71. The relative errors varying from 0.29 to 18.98 in absolute value indicates that the Grunberg-like model works perfectly for polymer-protein solutions as well.
Gündüz
Ufuk
U
Kimya Mühendisliği Bölümü, Mühendislik ve Mimarlik Fakültesi, Gazi Universitesi, 06570 Ankara, Turkey. ufzafer@gazi.edu.tr
D011092:Polyethylene Glycols / Q000737:chemistry; D011506:Proteins / Q000737:chemistry*; D012710:Serum Albumin, Bovine / Q000737:chemistry; D013696:Temperature; D014783:Viscosity
D011506:Proteins; D012710:Serum Albumin, Bovine; D011092:Polyethylene Glycols