Assessment of the morphology of mixed SAMs on Au nanoparticles using a fluorescent probeThis article is part of the 'Emerging Investigators' themed issue for ChemComm.Electronic supplementary information (ESI) available: Synthesis and characterization of thiol 3 and Au MPCs VI-X. Fluorescence titrations. See DOI: 10.1039/c0cc02260h

The distribution of thiols in mixed SAMs can be determined in a straightforward manner from spectrophotometric titrations using a fluorescent probe. A plot of saturation concentration as a function of mole fraction provides information on the number of headgroups involved in binding. The morphology of mixed SAMs on Au nanoparticles can be assessed in a straightforward manner using a fluorescent probe.