Dynamics is an essential question in the understanding of self-assembled objects, weakening their stability but providing very interesting visco-elastic properties to the system. In this context, we study model physical gels that self assemble under different conformation depending on the surrounding solvent. The chosen gelators being simple and compact molecules, we will able to give a detailed characterization of the relaxation modes and therefore provide a quantitative description of the dynamics of this two-component system: a rigid network formed by the gelators that also includes solvent molecules in a dynamical assembly, and the remaining bulk-like surrounding solvent. The system proposed here has a mechanical stability in both toluene and water that will enable to probe the dynamical response from the picosecond to infinite time, enabling to establish a relation between the micro and macroscopic scale.We require for this study 4 days on IN16b, 2 days on IN5 and 7 days on IN11.