The observation of the long-lived pyrene emission in OTPh/NaDC gels (> 365 ns, Table ) suggests that some pyrene molecules are in isolated environments where encounters with other OTPh and P3HT are solubilized as monomers when stable NaDC gels are formed. The oligomer and polymer are insoluble in water leading to excimer emission. This emission was not observed when OTPh and P3HT were fully solubilized in NaDC gels. In addition, the OTPh emission spectrum did not change when the concentration of NaDC was raised above the minimum concentration required for solubilization. This result eliminates the possibility that OTPh aggregates are solubilized by NaDC aggregates followed by a dissociation of the OTPh aggregates into monomers at higher NaDC concentrations. Rheology experiments showed that the mechanical properties of the NaDC gel were not affected with the addition of OTPh or P3HT, indicating that the addition of these molecules did not lead to fundamental changes of the interactions between the NaDC molecules that form the gel. This result is consistent with the presence of primary and secondary aggregates of NaDC in the hydrogels containing the oligomer (Figure ) and polymer.