Ratiometric sensing involves measuring the ratio of two different fluorescence intensities. In the case of naphthalene-based isomers, they may have different fluorescence properties in their free and saccharide-bound states. By measuring the ratio of these two fluorescence signals, it is possible to quantitatively determine the concentration of saccharides in a sample. This is a highly useful feature for precise quantification.
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5-(dimethylamino)naphthalene-1-boronic acid
4-(diphenylamino)-2-hydroxybenzaldehyde
