Figure 18.
Energy-transfer-based Pdot sensors. A) Oxygen-dependent emission spectra of the PtOEP-doped PDHF Pdots. The inset shows UV illuminated photograph of the aqueous Pdot solutions saturated with nitrogen, air, and oxygen, respectively. Reproduced from Ref. [52] with permission. B) Fluorescence spectra of fluorescein-conjugated PPE Pdots at different pH values ranging from 5 to 8. Reproduced from Ref. [60] with permission. C) Fluorescence spectra of RhB-conjugated PFBT Pdots at different temperatures from 10 °C to 70 °C. Reproduced from Ref. [59] with permission. D) Fluorescence spectra of RhB-SL-doped PFBT Pdots in aqueous suspension as mercury ion concentration was increased from 0 to 0.57 μM. Reproduced from Ref. [77] with permission.