Superhydrophobic Surface-Enhanced Raman Spectroscopy (SERS) Substrates for Sensitive Detection of Trace Nanoplastics in Water

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

Published: Jan. 23, 2025

Nanoplastics, emerging as pervasive environmental pollutants, pose significant threats to ecosystems and human health due their small size potential toxicity. However, detecting trace levels of nanoplastics remains challenging because limitations in the current analytical methods. Herein, we propose a method that combines superhydrophobic enrichment with SERS analysis for aqueous environments. Superhydrophobic substrates were prepared by using liquid-liquid self-assembly method. The superhydrophobicity facilitated analyte enrichment, monolayer Au nanoparticles (AuNPs) enhanced Raman signals. detection limit probe crystal violet (CV) this substrate reached nanomolar (10-9 M), an RSD 9.96% across 40 × μm2 area (441 spots), demonstrating excellent sensitivity reproducibility. This successfully detected polystyrene (PS) plastics ranging from 30 1000 nm water concentrations low 0.03 μg/mL. Additionally, nanoscale polyethylene terephthalate (PET) particles bottled samples. approach offers promising platform analyzing samples addresses needs monitoring.

Language: Английский

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Microplastics in Animal-Derived Products and Their Potential Risks to Human Health

TrAC Trends in Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 118187 - 118187

Published: Feb. 1, 2025

Language: Английский

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Quantitative detection of trace nanoplastics (down to 50 nm) via surface-enhanced raman scattering based on the multiplex-feature coffee ring

Opto-Electronic Advances, Journal Year: 2025, Volume and Issue: 0(0), P. 240260 - 240260

Published: Jan. 1, 2025

Language: Английский

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Nanoplastic detection with surface enhanced Raman spectroscopy: Present and future

TrAC Trends in Analytical Chemistry, Journal Year: 2022, Volume and Issue: 158, P. 116885 - 116885

Published: Dec. 14, 2022

Language: Английский

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Size-independent quantification of nanoplastics in various aqueous media using surfaced-enhanced Raman scattering

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 442, P. 130046 - 130046

Published: Sept. 21, 2022

Language: Английский

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Rapid detection of nanoplastics down to 20 nm in water by surface-enhanced raman spectroscopy

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 462, P. 132702 - 132702

Published: Oct. 4, 2023

Language: Английский

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Physicochemical characterization and quantification of nanoplastics: applicability, limitations and complementarity of batch and fractionation methods

Analytical and Bioanalytical Chemistry, Journal Year: 2023, Volume and Issue: 415(15), P. 3007 - 3031

Published: April 27, 2023

A comprehensive physicochemical characterization of heterogeneous nanoplastic (NPL) samples remains an analytical challenge requiring a combination orthogonal measurement techniques to improve the accuracy and robustness results. Here, batch methods, including dynamic light scattering (DLS), nanoparticle tracking analysis (NTA), tunable resistive pulse sensing (TRPS), transmission electron microscopy (TEM), scanning (SEM), as well separation/fractionation methods such centrifugal liquid sedimentation (CLS) field-flow fractionation (FFF)-multi-angle (MALS) combined with pyrolysis gas chromatography mass spectrometry (pyGC-MS) or Raman microspectroscopy (RM) were evaluated for NPL size, shape, chemical composition measurements quantification. set representative/test particles different natures, (i) polydisperse polyethylene (PE), (ii) (doped) polystyrene (PS) NPLs, (iii) titanium dioxide, (iv) iron oxide nanoparticles (spherical elongated), was used assess applicability limitations selected methodologies. Particle sizes number-based concentrations obtained by (DLS, NTA, TRPS) comparable monodisperse spherical samples, while higher deviations observed polydisperse, agglomerated non-spherical particles, especially methods. CLS TRPS offer further insight increased size resolution, detailed morphological information can be derived (EM)-based approaches. Combined FFF coupled MALS RM provide complementary on physical properties online measurements, pyGC-MS fractions identification polymer (vs. inorganic particles) their offline (semi)quantification. However, in complex will continue present serious without significant improvements sample preparation.

Language: Английский

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Advanced Raman spectroscopy for nanoplastics analysis: Progress and perspective

TrAC Trends in Analytical Chemistry, Journal Year: 2023, Volume and Issue: 166, P. 117188 - 117188

Published: July 11, 2023

Language: Английский

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An overview of microplastics in oysters: Analysis, hazards, and depuration

Food Chemistry, Journal Year: 2023, Volume and Issue: 422, P. 136153 - 136153

Published: April 23, 2023

Language: Английский

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Marine micro(nano)plastics determination and its environmental toxicity evaluation

TrAC Trends in Analytical Chemistry, Journal Year: 2023, Volume and Issue: 168, P. 117332 - 117332

Published: Sept. 27, 2023

Language: Английский

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