Table 1.

Normalized percent change in fluorescence as a function of pH and fluorophore loading in SCK.

Solution pH	SCK 3[a]	SCK 4[b]	Micelle/ Xlinker[c]	PAA/ Xlinker[d]	Xlinker[e]
pH 4.5	100%	100%	100%	100%	100%
pH 6.1	180%	120%	92%	90%	100%
pH 8.0	330%	130%	93%	80%	100%
pH 9.5	370%	140%	96%	80%	110%
pH 11.0	370%	150%	96%	100%	100%

^[a]6.25 mol% fluorophore loading

^[b]12.5 mol% fluorophore loading

^[c]6.25 mol% fluorophore loading

^[d]PAA and fluorophore complex at 6.25 mol% fluorophore loading, relative to acrylic acid residues

^[e]fluorophore stock solution