Fluorescent MOF-based nanozymes for discrimination of phenylenediamine isomers and ratiometric sensing of o-phenylenediamine

A multi-responsive Tb-doped MOF probe for highly specific breath volatile biomarker recognition of lung cancer

“…[47][48][49] Moreover, it can be seen from Table S5 (ESI †) that energy can be effectively transferred from Tb-TiO-66 (1 : 103) to styrene (FRET). 50,51 Therefore, based on the combined action of ESIPT and FRET (Fig. 8b and Table S5, ESI †), the fluorescence intensity reached the maximum at 317 nm and decreased with the further increase of styrene.…”

Solid-Phase Pyrolysis Synthesis of Highly Fluorescent Nitrogen/Sulfur Codoped Graphene Quantum Dots for Selective and Sensitive Diversity Detection of Cr(VI)

“…In IFE, the emission and/or excitation light of the donor could be absorbed by the absorber (quencher) and result in quenching of FL emission intensities. To obtain better energy transfer between the donor and absorber, the donor’s excitation and/or emission spectra should overlap with the absorber’s absorption spectra. , Hence, to obtain highly efficient IFE-based FL sensors, it is very crucial to carefully select the best absorber and donor pairs. As presented in Figure A, the Cr­(VI)-N/S-GQD system satisfies the condition of IFE as the Cr­(VI) (absorption at 360 nm) and N/S-GQDs (λ excitation at 370 nm) showed a good spectral overlap.…”

A redox reaction-induced ratiometric fluorescence platform for the specific detection of ascorbic acid based on Ag2S quantum dots and multifunctional CoOOH nanoflakes

“…18,19 Moreover, using the ratio of two fluorescence signals with opposite changes at the same excitation wavelength as the readout is a typical signal amplification strategy, which can obtain high-sensitivity for detection. [20][21][22] CoOOH NFs composed of an octahedral CoO 6 layer with an edge-sharing structure is a kind of 2D nanomaterial with oxidase-like activity. It can be easily prepared with good stability.…”

“…18,19 Moreover, using the ratio of two fluorescence signals with opposite changes at the same excitation wavelength as the readout is a typical signal amplification strategy, which can obtain high-sensitivity for detection. 20–22…”