We have synthesized a series of amphiphilic molecules consisting of oligo (phenylene vinylene)(OPV) asymmetrically end-substituted with a hydrophilic poly (ethylene glycol)(PEG) segment and a hydrophobic alkyl chain. This amphiphilic structure induces self- assembly into both thermotropic and lyotropic lamellar liquid crystalline (LC) phases. The molecules form strongly fluorescent, self-supporting gels in both water and polar organic ...