Recent studies implied an unusual headgroup (HG)-free, fluorocarbon (FC) surfactant Nohead FC6-HC4 to form stable, W/CO2 nanodispersions (W/C NDs). With the unusual surfactant architecture, the ND formation is a surprising find with a significant potential impact in this science field. Due to the lack of a HG, this type of W/C ND could be a more practical and universal solvent, without the complex after treatments normally required to remove charged surfactants. This study will find a non-bioaccumulative and inexpensive compound both HG and FC free for W/C NDs. Examination of the ND structures with a photochromic dye at different P, T and light condition will give information on whether NP-precursors or enzymes can be used for potential applications. These results will therefore clarify the possibility of pressure- and light-induced separation and advantages of the NDs as a nanoreactor.