PEC-EC dual-mode biosensing platform for PFOA assay based on competitive binding between HSA and PFOA or hemin

Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: unknown, P. 137326 - 137326

Published: Jan. 1, 2025

Language: Английский

---

Trap-n-zap: Electrocatalytic degradation of perfluorooctanoic acid (PFOA) with UiO-66 modified boron nitride electrodes at environmentally relevant concentrations

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 355, P. 124136 - 124136

Published: April 29, 2024

Language: Английский

---

Nanoscale Fluorinated Carbon Dots for the Detection of Perfluorooctanoic Acid in Aqueous Systems: A Fluorescence Assay Enhanced by Fluorophilic Interactions

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 10, 2024

Language: Английский

---

Electrochemical Sensing of Perfluorooctanoic Acid via a Rationally Designed Fluorine-Functionalized Cu-MOF and In-Depth Analysis of Sensing Mechanism

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Perfluorooctanoic acid (PFOA), a prominent member of the per- and polyfluoroalkyl substance (PFAS) family, has emerged as new perpetual pollutant posing significant environmental health risks, necessitating developing highly selective materials for its sensitive detection in water. In this work, we developed an electroactive fluorine-functionalized Cu-MOF (F-Cu-NH2BDC) through postmodification copper-2-amino-terephthalic (Cu-NH2BDC) MOF with 2,3,5,6-tetrafluoroterephthalaldehyde (TFTA). Experimental computational results suggested that F-F interactions between decorated tetrafluorobenzaldehyde groups PFOA, well among PFOA molecules themselves, would induce self-aggregation on surfaces or pores F-Cu-NH2BDC. This specific aggregation inhibited contact electron transfer F-Cu-NH2BDC electrolyte, resulting decrease inherent electrochemical Cu2+/Cu+ redox signal from Based this, F-Cu-NH2BDC-based label- probe-free sensor was exploited excellent linear range 5 pM to 500 μM extremely low limit 3.54 pM, surpassing most currently reported nonelectrochemical PFAS sensors. also exhibited good stability, reproducibility, anti-interference performance, enabling accurate measurement concentrations actual commercial drinking These findings shed light design sensors utilizing interaction working mechanism.

Language: Английский

---

Mn2O@Zn-N nanocarbon based on pyrolytically ZIF-8-on-MnO2 as high-performance electrochemical sensor for ultrasensitive detection of rifampicin in environmental samples

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116372 - 116372

Published: March 1, 2025

Language: Английский

---

In Situ Synthesis of Molecularly Imprinted Polymers by Near-Field Photopolymerization for Ultrasensitive PFOA Plasmonic Plastic Fiber Optic Sensors

Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: unknown, P. 137992 - 137992

Published: May 1, 2025

Language: Английский

---

Functionalized borophene with methylene blue tagging for sensitive electrochemical detection of PFOA

Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 314, P. 118073 - 118073

Published: Feb. 3, 2025

Language: Английский

---

Fluorescent Sodium Alginate Hydrogel–Carbon Dots Sensor for Detecting Perfluorooctanoic Acid in Potable Water

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 3, 2025

Per- and polyfluoroalkyl substances (PFASs), especially perfluorooctanoic acid (PFOA), are emerging environmental health concerns due to their persistence, resistance degradation, bioaccumulation. In this study, we developed a sensitive selective detection platform based on sodium alginate (SA) hydrogel modified with nitrogen fluorinated carbon dots (N,F-CDs) enhance the of PFOA in natural engineered water systems. The SA hydrogel-N,F-CD composite exhibited strong fluorescence at 480 nm after optimization, achieving limit as low 0.001 ppt. sensor was characterized by using Scanning Electron Microscopy (SEM), Fourier-Transform Infrared Spectroscopy (FT-IR), Powder X-ray Diffraction (PXRD), Photoelectron (XPS), zeta potential spectroscopy, revealing its structural integrity, functional groups, surface charge hydrogel-N,F-CDs network. Sensitivity assessments demonstrated linear response concentrations ranging from 1 66 ppq. Selectivity tests confirmed sensor's ability distinguish other perfluorinated compounds, minimal interference substances. practical applicability validated spiked recovery experiments tap samples various locations, rates between 94% 106.6%. This offers reliable, efficient, highly for PFAS, demonstrating real-world PFAS-monitoring applications.

Language: Английский

---

Highly sensitive determination of perfluorooctanoic acid in food and river samples with an electrochemical platform based on MIP and modified MWCNTs

Microchemical Journal, Journal Year: 2024, Volume and Issue: unknown, P. 112328 - 112328

Published: Dec. 1, 2024

Language: Английский

---

Light-induced manipulation of ultra-low surface tension droplets on stable quasi-liquid surfaces

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 303 - 311

Published: Aug. 14, 2024

Language: Английский

---