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Nano-enabled sensing of per-/poly-fluoroalkyl substances (PFAS) from aqueous systems – A review by Shafali Garg; Pankaj Kumar; George W. Greene; Vandana Mishra; Dror Avisar; Radhey Shyam Sharma; Ludovic F. Dumée is a Environmental Science article available to read on EtoBox.

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Per-/poly-fluoroalkyl substances (PFAS) are an emerging class of environmental contaminants used as an additive across various commodity and fire-retardant products, for their unique thermo-chemical stability, and to alter their surface properties towards selective liquid repellence. These properties also make PFAS highly persistent and mobile across various environmental compartments, leading to bioaccumulation, and causing acute ecotoxicity at all trophic levels particularly to human populations, thus increasing the need for monitoring at their repositories or usage sites. In this review, current nano-enabled methods towards PFAS sensing and its monitoring in wastewater are critically discussed and benchmarked against conventional detection methods. The discussion correlates the materials’ properties to the sensitivity, responsiveness, and reproducibility of the sensing performance for nano-enabled sensors in currently explored electrochemical, spectrophotometric, colorimetric, optical, fluorometric, and biochemical with limits of detection of 1.02 × 10−6 μg/L, 2.8 μg/L, 1 μg/L, 0.13 μg/L, 6.0 × 10−5 μg/L, and 4.141 × 10−7 μg/L respectively. The cost-effectiveness of sensing plat

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Author

Shafali Garg; Pankaj Kumar; George W. Greene; Vandana Mishra; Dror Avisar; Radhey Shyam Sharma; Ludovic F. Dumée

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Environmental Science (Physical Sciences)