Is it necessary for all fluorescence chemosensors to display colorimetric characteristics when detecting metal ions? This question arises particularly in the context of covalent organic frameworks (COFs) and metal-organic frameworks (MOFs).
I used an organic framework as a fluorescence sensor of metal cations. I have now been asked about its colorimetric properties.
No, not all fluorescence chemosensors need to show colorimetric characteristics when detecting metal ions. Many are designed for both fluorescence and colorimetric responses, but some function solely on fluorescence without any visible color change.
No, it is not necessary for all fluorescence chemosensors, including COFs and MOFs to exhibit colorimetric properties when detecting metal ions.
In Case of COFs and MOFs used as fluorescent sensors, their primary detection mechanism typically relies on changes in fluorescence characteristics; such as quenching, enhancement, or shifts in emission wavelength; upon binding with metal ions. This fluorescence response provides high sensitivity and can often detect low concentrations of metal ions that might not produce an observable color change.
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