A new lateral-flow immunochromatographic strip combined with quantum dot nanobeads and gold nanoflowers for rapid detection of tetrodotoxin

), and had a positive signal readout (based on fluorescence quenching effects) for TTX detection. Moreover, it had superior signal brightness and a low background interference signal when compared with previous methods. Finally, it can function free of interference from the sample matrix and has a demonstrated recovery range of 85.5% to 119.7% in spiked samples. Taken together, these results show that our turn-on C-LFICS is an effective detection tool for TTX or other small molecules.