Key points are not available for this paper at this time.
Small Ag clusters incorporating both the pH-sensitive Raman probe molecule 4-mercaptobenzoic acid and a fluorescent dye are used to determine the local pH from the spatially mapped surface-enhanced Raman spectra correlated with the fluorescence, allowing simultaneous single-particle tracking and local pH sensing.
Pallaoro et al. (Mon,) studied this question.