the steady-state fluorescence anisotropy measurements on influenza and parainfluenza viruses , showed no changes in the microviscosity of the viral membranes after exposure to uv-irradiation , when a fluorescent probe was used , but the intrinsic fluorescence of viral proteins presented , under the same experimental conditions , a significant difference of anisotropy behaviour in the two viruses used .
C0042736
viral proteins
C0042776
viruses