Compositions containing a transporter component and a signaling component and a method for using said compositions for analyzing porous media and flowing liquid streams, specifically for measuring pressure, temperature, relative abundance of water, pH, redox potential and electrolyte concentration. Analytes may include petroleum or other hydrophobic media, sulfur-containing compounds. The transporter component includes an amphiphilic nanomatenal and a plurality of solubilizing groups covalently bonded to the transporter component. The signaling component includes a plurality of reporter molecules associated with the transporter component. Said reporter molecules may be releasable from the transporter component upon exposure to at least one analyte. The reporter molecules may be non-covalently associated with the transporter component, or the reporter molecules are covalently bonded to the transporter component. Furthermore, said compositions and methods may be used to actively enhance oil recovery and for remediation of pollutants.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
 This invention was made with Government support under grant number DE-FC-36-05GO15073 awarded by the United States Department of Energy, grant number W81XWH-08-2-0143 awarded by the United States Army, grant number 09-S568-064-01-C1 awarded by Universal Technology Corporation via pass-through funding from the Air Force Research Laboratory grant number FA8650-05-D-5807, and grant number EEC-0647452 awarded by the National Science Foundation. The invention was also made with Government support under grant number FA8650-07-2-5061 awarded by the Air Force Office of Scientific Research under the Air Force Research Laboratory Consortium for Nanomaterials for Aerospace Commerce and Technology (CONTACT). The Government has certain rights in the invention.