Luminescent Signalling for Sensors and Switches

Although in this text they are not described as such, many of the applications described in section 3.5.6 fall into the category of luminescent signalling. For instance, the detection of in section 3.S.6.3, the measurement of pH in section 3.5.6.4, and the use of lanthanide chelates in DNA studies outlined in section 3.5.6.9 all use the change in fluorescence for both the signalling and quantification of the target. 

Luminescent signalling systems can be devised to show both molecule-molecule and molecule-atom interactions. The signalling principles of the most useful systems have been classified into the following main categories  

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