Tunable luminescent lanthanide cluster-based hydrogel probe for ratiometric detection of ofloxacin, anti-counterfeiting, and magnetocaloric applications

A series of Ln 14 clusters is reported, in which Gd 14 exhibits a pronounced magnetocaloric effect, and Tb 9 Eu 5 functions as the first lanthanide cluster-based ratiometric luminescent probe for detecting ofloxacin.