Fig. 2: Selective recognition of TET and PEC detection on Cu1-TiO2-x.
From: Atomically dispersed recognition unit for selective in vivo photoelectrochemical medicine detection
a FTIR spectra and b Raman spectra of TiO2-x, TET/TiO2-x, TET/Cu NPs-TiO2-x, TET/Cu1-TiO2-x, and TET; c fs-TAS decay kinetics of Cu1-TiO2-x and TET/Cu1- TiO2-x; d DFT calculations of local charge density difference of TET/TiO2-x and TET/Cu1-TiO2-x NCPC, yellow part symbolizes local electron accumulation area and cyan part symbolizes local electron depletion area respectively; selectivity measurements of TET on e TiO2-x and f Cu1-TiO2-x with interferences of tobramycin, kanamycin, enrofloxacin, penicillin, chloramphenicol, and streptomycin (all the chemical structures of TET and interferences were presented in the inset of (e); g photocurrent response and selectivity of TET on TiO2-x, Cu1- TiO2-x with different Cu single atom contents, and Cu NPs-TiO2-x; h PEC detection of TET with different concentrations in range from 0 to 500 nM; i linear calibration curve for PEC TET detection.
