Molecule fluorescent probes for sensing and imaging analytes in plants: Developments and challenges

Nitrogen-doped carbon quantum dots for fluorescence sensing, anti-counterfeiting and logic gate operations

“…11 Fluorescent chemosensors utilize fluorescent molecules to undergo specific interactions with target analytes, resulting in changes in their fluorescence properties. 12–14 These sensors typically consist of a receptor that can selectively interact with the target analyte. Upon binding to the target analyte, the fluorescence properties such as the intensity, lifetime, or wavelength of the fluorescent molecules undergo modifications.…”

Solvation effect enabled visualized discrimination of multiple metal ions

“…, whereas, the unconscionable discharge and accidental leakage easily cause the pollution of the water body and soil, from which the potentially toxic metals could be accumulated into the human body through the food chain. 3–5 Therefore, the World Health Organization (WHO) and many national environmental agencies have enacted regulations to strictly limit the concentration of specific metal ions in drinking water, food, and cosmetics. The pressing need for highly effective, low-cost, portable and reliable sensing analysis has given rise to the development of plenty of rapid detection methods for metal ions.…”

Red-shifted activity-based sensors for ethylene via direct conjugation of fluorophore to metal–carbene

“…8 Molecular detection of ethylene has largely focused on roles in plant systems inspiring several elegant strategies due to the lack of main group reactivity under mild conditions. 9,10 To detect this simple alkene, transition metals have emerged as an obvious choice owing to the wealth of coordination chemistry and reactivity accessible under ambient conditions due to additional bonding interactions such as pi-back bonding. 11 Approaches reported for molecular ethylene detection can be broadly categorized as coordination-based sensors [12][13][14][15][16] or activitybased sensors (ABS) [17][18][19][20][21][22][23][24] with the latter emerging as an attractive approach for selective ethylene detection in complex environments.…”