A selectivity-enhanced fluorescence imprinted sensor based on yellow-emission peptide nanodots for sensitive and visual smart detection of λ-cyhalothrin

FRET-Based Host–Guest Supramolecular Probe for On-Site and Broad-Spectrum Detection of Pyrethroids in the Environment

“…However, these methods usually require complicated instruments, tedious sample pretreatment, long response times (hours), and skilled staff for data analysis, which severely limits their application for on-site detection. Recently, fluorescence methods have received increasing attention for pesticide analysis owing to their ability to provide rapid, sensitive, and visible responses to analytes. − The optical responses of some fluorescent probes can be captured and subsequently analyzed using portable cameras (i.e., smartphones) instead of expensive instruments, thereby enabling facile and efficient on-site detection. − To date, only a few fluorescent probes have been reported for the detection of PYRs (Table S1), ,,− most of which are on/off probes. The fluorescence intensities of these on/off probes positively correlate with the concentration of PYRs, exhibiting remarkably low limits of detection (LODs).…”

“…These probes use the intensity ratio of two emission peaks for the determination of analytes, and thus they are more capable of on-site monitoring of environmental PYRs . Pioneering studies on ratiometric fluorescence probes for detecting specific varieties of PYRs have recently been reported. ,− However, to the best of our knowledge, ratiometric fluorescent probes for the on-site and broad-spectrum detection of PYRs have rarely been reported.…”