please paraphrase this paragraph in different way.
(The first oxygen-sensing mechanism by fluorescence wasdemonstrated by Kautsky in the early 20th century. and the firstfluorescence system with an integrated UV source was developed in1968 by Bergman.. A wide variety of fluorophores, such as organicprobes, metal-ligand complexes, and luminescent nanomaterials makethis technique versatile. Metal−ligand complexes have a longerlifetime and large Stokes shift and are more stable when comparedto organic probes. In metal-ligand complexes, ruthenium-basedoxygen sensing is the most studied and widely used fluorophorebecause of its wideband excitation (400−480 nm) and large Stokesshift, resulting in an emission region of >610 nm. Theimportance and working principle of the fluorescent responsiveruthenium dye
When a fluorophore is illuminated with a suitable wavelength, itwill be excited to the higher energy state S1 from the lower energystate S0, and the relaxation path from the higher energy state tothe lower ground state can be possible by either fluorescence orphosphorescence)
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