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. Author manuscript; available in PMC: 2019 Dec 12.
Published in final edited form as: Phys Chem Chem Phys. 2018 Dec 12;20(48):30340–30350. doi: 10.1039/c8cp06061d

Fig. 3.

Fig. 3

Dependence of the longitudinal relaxation rate R1 (panel a) and the transverse relaxation rate R2 (panel b) of water protons as a function of the BSA and lysozyme mass concentration, cp. All solutions were prepared in acetate buffer (pH = 4.6 for lysozyme and 4.0 for BSA). The molar concentration of the low molecular mass salt (NaCl, NaNO3, or NaI) added to the aqueous protein-buffer solution was 0.1 mol L−1. All experiments were performed at T = 25 °C. Data for lysozyme are for the sake of comparison replotted from Figure 1. Experimental error bars are smaller than the symbol size.