In vivo detection of fluoride at trace levels and its removal from raw water at neutral pH utilizing a cyanobacterium pigment as a luminescent probe

Abstract

A selective method has been developed for trace level (0.01 mg L−1) fluoride detection in HEPES buffer in the presence of interfering ions (such as Cl−, I−, Br−, SO42−, ClO4−, and CH3COO−) using a cyanobacterium as a luminescent probe.

Perspectives on Dual‐purpose Functional Nanomaterials for Detecting and Removing Fluoride Ion from Environmental Water

“…In contrast, An‐PSQ has shown the lowest sensitivity and good removal efficiency (82 %). The luminescent probe extracted from cyanobacterium in the presence of F − exhibited the fluorometric response and adsorption method for removal by forming H‐bonding interactions [37] . This luminescent probe has shown the second highest sensitivity (0.01 ppm) and removal efficiency (90–92 %) among the FNM reported.…”

“…Unlike the previous studies dealing with environmental water, Mandal and co‐workers [37] reported biosensor based on cyanobacterium appended rhodamine B dye for the detection of F − selectively by employing fluorescence microscopy for in vivo real‐time analyses. The SEM image analysis exhibited that green algae species P. luridum was filamentous in shape with 450–600 μM in length and 2–10 μM in diameter and also porous in nature.…”

“…Fluorescence micrographs of P. luridum (a) rhodamine B stained algae cell; (b-d) influence of F À (0.01 mg mL À 1 ) on rhodamine B stained algae cell at different times 10, 15, and 20 min. Reproduced from ref [37]. Copyright (2016), with permission from Royal Society of Chemistry.…”

Perspectives on dual-purpose functional nanomaterials for detecting and removing fluoride ion from environmental water

“…However, it was found that the Py-PSQ is not a good candidate for removal due to less solubility and slow response, whereas An-PSQ has shown the lowest sensitivity and good removal efficiency (82%). The luminescent probe extracted from cyanobacterium in the presence of Fexhibited the fluorometric response and adsorption method for removal through the formation of H-bonding interactions [70]. This luminescent probe has shown second highest sensitivity (0.01 ppm) and removal efficiency (90-92%) among the FNM reported.…”

“…Unlike the previous studies dealing with environmental water, Mandal and co-workers reported [70] biosensor based on cyanobacterium appended rhodamine B dye for the detection of Fselectively by employing fluorescence microscopy for in vivo real-time analyses. The SEM image analysis exhibited that green algae species P. luridum was filamentous in shape https://doi.org/10.26434/chemrxiv-2023-klzq3 ORCID: https://orcid.org/0000-0001-9870-5209 Content not peer-reviewed by ChemRxiv.…”