Cys-Functionalized MoS₂ Quantum Dots and Calcium Ion for Ratiometric Fluorescence Probes for Doxycycline

Carbon Quantum Dots for Rapid and Ratiometric Fluorescence Determination of Hypochlorite

“…The N 1s spectrum exhibited two characteristic peaks at 399.48 and 401.18 eV (Figure d), corresponding to the C–N and N–H bonds, respectively . The S 2p spectrum showed two characteristic peaks, attributed to S 2p 1/2 (167.98 eV) and S 2p 3/2 (163.48 eV) (Figure e). , FTIR spectroscopy was employed to analyze the functional group information present on the surface of CDs, so as to deduce their molecular structure. The main characteristic peaks of GSH and CDs are displayed in Figure S1b.…”