Liisa Hirvonen edited Results.tex  over 8 years ago

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\section{Results}  The measured rotational correlation time increases with solvent viscosity, as expected (Fig~\ref{fig:BSA}). (Fig~\ref{fig:exampleFits}).  A double-exponential fit to the anisotropy yields excellent fit results for all measured proteins; example fits to three Eylea data sets are shown in Fig~\ref{fig:eyleaFit}. Fig~\ref{fig:exampleFits}.  The longer rotational correlation times corresponding to the protein rotation were plotted against the viscosity, see Fig~\ref{fig:results}. For each protein the rotational correlation time increases linearly with viscosity, as expected. Gradients of 43.28$\pm$0.12~ns/cP for BSA, 51.47$\pm$0.12~ns/cP for Eylea, 21.40$\pm$0.11~ns/cP for Lucentis and 98.09$\pm$0.04~ns/cP for Avastin were obtained by straight line fits to the data sets using least squares method. Using eq~\ref{eq:R_h}, this yields experimental radius of 3.49$\pm$0.03~nm for BSA, 3.70$\pm$0.03~nm for Eylea, 2.75$\pm$0.04~nm for Lucentis and 4.58$\pm$0.01~nm for Avastin. Summary of the calculated and measured hydrodynamic radii is shown in Table~\ref{table:res}.