Magnetic labelling and extraction of micrometer-sized microplastics from sandy soil
- Author
- Yin Liu (UGent) , Junwei Hu (UGent) , Yanqi Huang (UGent) , Nick Krekelbergh (UGent) , Patria Novita Kusumawardani (UGent) , Steven Sleutel (UGent) , Bogdan Parakhonskiy (UGent) , Milka Susan Kollannur Biju (UGent) , Richard Hoogenboom (UGent) , Stefaan De Neve (UGent) and Andre Skirtach (UGent)
- Organization
- Project
-
- Microplastics in soils: identification, dynamics and transfer risks to other ecosystem compartments
- Hybrid particle/hydrogel/bacterial carriers for microbially-assisted degradation of recalcitrant polycyclic aromatic hydrocarbons
- Triple punch against melanoma: photodynamic therapy, immunogenic cell death and photothermal ablation
- Abstract
- Ubiquitous microplastics (MP) have emerged as a global environmental concern. However, limited attention has been given to the migration and distribution of small-sized MP (< 10 mu m) due to the challenges associated with separating MP. Here, we show that magnetic labelling of MP greatly increases the efficiency of MP extraction from soil using a magnetic field. Magnetic labelling was achieved by exploiting the glass transition of polystyrene MP sphere. By heating MP (4 m), to induce a surface transition to rubbery state in a suspension containing Fe3O4 magnetic nanoparticles (MNS), the MNS were adsorbed onto the MP surface. Subsequent cooling to room temperature, led to fixation of the MNS into the MP surface layer enabling MP extraction using a magnet. Incubating MP and MNS at 90 degrees C for 2.5 h gave the highest MP recovery rate of 92 % in water. The same MP were added to sandy soil to optimize labelling and extraction. Optimized parameters included dispersant type, organic matter digestion, and MNS size, concentration, and storage time. Compared to conventional MP detection methods, the MP recovery using magnetic extraction improved from 26 % to 93 %. To the best of our knowledge, this research represents the first successful quantitative extraction of MP < 10 mu m from soil.
- Keywords
- Microplastic detection, Magnetic nanoparticles, Thermal, Labelling, Magnetic extraction, Soil, GLASS-TRANSITION, NANOPARTICLES, TEMPERATURE, IRON, POLYSTYRENE
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01KEVDV0KD836BWNJRXQR13FFT
- MLA
- Liu, Yin, et al. “Magnetic Labelling and Extraction of Micrometer-Sized Microplastics from Sandy Soil.” JOURNAL OF HAZARDOUS MATERIALS, vol. 496, 2025, doi:10.1016/j.jhazmat.2025.139210.
- APA
- Liu, Y., Hu, J., Huang, Y., Krekelbergh, N., Kusumawardani, P. N., Sleutel, S., … Skirtach, A. (2025). Magnetic labelling and extraction of micrometer-sized microplastics from sandy soil. JOURNAL OF HAZARDOUS MATERIALS, 496. https://doi.org/10.1016/j.jhazmat.2025.139210
- Chicago author-date
- Liu, Yin, Junwei Hu, Yanqi Huang, Nick Krekelbergh, Patria Novita Kusumawardani, Steven Sleutel, Bogdan Parakhonskiy, et al. 2025. “Magnetic Labelling and Extraction of Micrometer-Sized Microplastics from Sandy Soil.” JOURNAL OF HAZARDOUS MATERIALS 496. https://doi.org/10.1016/j.jhazmat.2025.139210.
- Chicago author-date (all authors)
- Liu, Yin, Junwei Hu, Yanqi Huang, Nick Krekelbergh, Patria Novita Kusumawardani, Steven Sleutel, Bogdan Parakhonskiy, Milka Susan Kollannur Biju, Richard Hoogenboom, Stefaan De Neve, and Andre Skirtach. 2025. “Magnetic Labelling and Extraction of Micrometer-Sized Microplastics from Sandy Soil.” JOURNAL OF HAZARDOUS MATERIALS 496. doi:10.1016/j.jhazmat.2025.139210.
- Vancouver
- 1.Liu Y, Hu J, Huang Y, Krekelbergh N, Kusumawardani PN, Sleutel S, et al. Magnetic labelling and extraction of micrometer-sized microplastics from sandy soil. JOURNAL OF HAZARDOUS MATERIALS. 2025;496.
- IEEE
- [1]Y. Liu et al., “Magnetic labelling and extraction of micrometer-sized microplastics from sandy soil,” JOURNAL OF HAZARDOUS MATERIALS, vol. 496, 2025.
@article{01KEVDV0KD836BWNJRXQR13FFT,
abstract = {{Ubiquitous microplastics (MP) have emerged as a global environmental concern. However, limited attention has been given to the migration and distribution of small-sized MP (< 10 mu m) due to the challenges associated with separating MP. Here, we show that magnetic labelling of MP greatly increases the efficiency of MP extraction from soil using a magnetic field. Magnetic labelling was achieved by exploiting the glass transition of polystyrene MP sphere. By heating MP (4 m), to induce a surface transition to rubbery state in a suspension containing Fe3O4 magnetic nanoparticles (MNS), the MNS were adsorbed onto the MP surface. Subsequent cooling to room temperature, led to fixation of the MNS into the MP surface layer enabling MP extraction using a magnet. Incubating MP and MNS at 90 degrees C for 2.5 h gave the highest MP recovery rate of 92 % in water. The same MP were added to sandy soil to optimize labelling and extraction. Optimized parameters included dispersant type, organic matter digestion, and MNS size, concentration, and storage time. Compared to conventional MP detection methods, the MP recovery using magnetic extraction improved from 26 % to 93 %. To the best of our knowledge, this research represents the first successful quantitative extraction of MP < 10 mu m from soil.}},
articleno = {{139210}},
author = {{Liu, Yin and Hu, Junwei and Huang, Yanqi and Krekelbergh, Nick and Kusumawardani, Patria Novita and Sleutel, Steven and Parakhonskiy, Bogdan and Kollannur Biju, Milka Susan and Hoogenboom, Richard and De Neve, Stefaan and Skirtach, Andre}},
issn = {{0304-3894}},
journal = {{JOURNAL OF HAZARDOUS MATERIALS}},
keywords = {{Microplastic detection,Magnetic nanoparticles,Thermal,Labelling,Magnetic extraction,Soil,GLASS-TRANSITION,NANOPARTICLES,TEMPERATURE,IRON,POLYSTYRENE}},
language = {{eng}},
pages = {{14}},
title = {{Magnetic labelling and extraction of micrometer-sized microplastics from sandy soil}},
url = {{http://doi.org/10.1016/j.jhazmat.2025.139210}},
volume = {{496}},
year = {{2025}},
}
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