Kuimova pioneered the use of fluorescent 'molecular rotor' probes combined with fluorescence lifetime imaging (FLIM) to quantitatively map intracellular microviscosity in live cells and tissue, with applications spanning photodynamic therapy, membrane biophysics and G-quadruplex DNA imaging.
Smith runs Melbourne's time-resolved fluorescence facility and specialises in the information channels most people throw away: fluorescence lifetime, anisotropy decay and its orientational content, and single-molecule photophysics, applied to organic semiconductors, energy-transfer systems and biological samples. The group builds its own confocal microspectroscopy instrumentation for time-resolved anisotropy imaging and single-molecule detection. Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — lifetime- and orientation-resolved fluorescence is the principal orthogonal contrast mechanism to spin-based sensing, and his instrumentation is the natural correlative partner for NV-ensemble DEER/relaxometry experiments at pT/sqrt(Hz) that need an independent optical readout of the same specimen. Preferred attribute present: orientation- and lifetime-resolved methods.