Abstract
We describe a dipeptide hydrogel with unusual aging characteristics. Over time, a transformation from a turbid gel to a transparent gel occurs which is initiated from the air-water interface. Here, we investigate this transition and discuss the implications of this aging on the bulk properties of the gel.
Highlights
We describe a dipeptide hydrogel with unusual aging characteristics
A transformation from a turbid gel to a transparent gel occurs which is initiated from the air–water interface
We report a low molecular weight gelators (LMWGs) that has extremely unusual aging properties caused by a gel-to-gel transition
Summary
We describe a dipeptide hydrogel with unusual aging characteristics. Over time, a transformation from a turbid gel to a transparent gel occurs which is initiated from the air–water interface. The transparent, aged gel showed significantly stronger rheological properties than the turbid gel (Fig. S1, ESI†). The evolution of the gel network was monitored after the addition of GdL by measuring the rheological properties, the change in turbidity and by recording the pH over time (Fig. 3).
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