Before revision:  Additionally, we have validated that the charging of the molecules is of main importance . Furthermore we show the impact of a locally varying salt concentration . Experimental results are shown which indicate a direct influence of compatible solutes on the liquid expanded-liquid condensed phase transition in DPPC monolayers.
After revision:  Additionally, we have validated that the charging of the molecules is of main importance resulting in a well defined hydration sphere. The influence of a varying salt concentration . Experimental results are shown which indicate a direct influence of compatible solutes on the liquid expanded-liquid condensed phase transition in DPPC monolayers.