Fig. 2: Water activities (αw) for aqueous solutions of amino acids.
From: Estimating aqueous solubility and hygroscopicity of amino acid particles with COSMOtherm
COSMOtherm-derived and literature αw for aqueous solutions of the amino acids in the hydrophilic (a–e), neutral (f–j) and hydrophobic groups (k, l), as a function of water mass fraction (mw) at 295 K. The black and grey dashed lines stand for COSMOtherm-derived estimates with and without considering the zwitterionic forms of amino acids, respectively. The red and blue markers represent literature data measured using bulk solutions16,17,18 and aqueous particles19,20, respectively.
