EchoTilt: An Acoustofluidic Method for the Capture and Enrichment of Nanoplastics Directed Toward Drinking Water Monitoring
Micro- and nanoplastics have become increasingly relevant as contaminants to be monitored due to their potential health effects and environmental impact. Nanoplastics, in particular, have been shown to be difficult to detect in drinking water, requiring new capture technologies. In this work, we app...
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MDPI AG
2024-12-01
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| Online Access: | https://www.mdpi.com/2072-666X/15/12/1487 |
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| author | Martim Costa Liselotte van der Geer Miguel Joaquim B. Hammarström S. Tanriverdi H. N. Joensson M. Wiklund A. Russom |
| author_facet | Martim Costa Liselotte van der Geer Miguel Joaquim B. Hammarström S. Tanriverdi H. N. Joensson M. Wiklund A. Russom |
| author_sort | Martim Costa |
| collection | DOAJ |
| description | Micro- and nanoplastics have become increasingly relevant as contaminants to be monitored due to their potential health effects and environmental impact. Nanoplastics, in particular, have been shown to be difficult to detect in drinking water, requiring new capture technologies. In this work, we applied the acoustofluidic seed particle method to capture nanoplastics in an optimized, tilted grid of silica clusters even at the high flow rate of 5 mL/min. Moreover, we achieved, using this technique, the enrichment of nanoparticles ranging from 500 nm to 25 nm as a first in the field. We employed fluorescence to observe the enrichment profiles according to size, using a washing buffer flow at 0.5 mL/min, highlighting the size-dependent nature of the silica seed particle release of various sizes of nanoparticles. These results highlight the versatility of acoustic trapping for a wide range of nanoplastic particles and allow further study into the complex dynamics of the seed particle method at these size ranges. Moreover, with reproducible size-dependent washing curves, we provide a new window into the rate of nanoplastic escape in high-capacity acoustic traps, relevant to both environmental and biomedical applications. |
| format | Article |
| id | doaj-art-800dbfdf52d841dd95d4b5d745b4621a |
| institution | DOAJ |
| issn | 2072-666X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-800dbfdf52d841dd95d4b5d745b4621a2025-08-20T02:57:27ZengMDPI AGMicromachines2072-666X2024-12-011512148710.3390/mi15121487EchoTilt: An Acoustofluidic Method for the Capture and Enrichment of Nanoplastics Directed Toward Drinking Water MonitoringMartim Costa0Liselotte van der Geer1Miguel Joaquim2B. Hammarström3S. Tanriverdi4H. N. Joensson5M. Wiklund6A. Russom7Science for Life Laboratory, Department of Protein Science, Division of Nanobiotechnology, KTH Royal Institute of Technology, 171 65 Solna, SwedenScience for Life Laboratory, Department of Protein Science, Division of Nanobiotechnology, KTH Royal Institute of Technology, 171 65 Solna, SwedenDepartamento de Bioengenharia, Instituto Superior Técnico, 1049-001 Lisboa, PortugalScience for Life Laboratory, Department of Applied Physics, KTH Royal Institute of Technology, 171 65 Solna, SwedenScience for Life Laboratory, Department of Protein Science, Division of Nanobiotechnology, KTH Royal Institute of Technology, 171 65 Solna, SwedenScience for Life Laboratory, Department of Protein Science, Division of Nanobiotechnology, KTH Royal Institute of Technology, 171 65 Solna, SwedenScience for Life Laboratory, Department of Applied Physics, KTH Royal Institute of Technology, 171 65 Solna, SwedenScience for Life Laboratory, Department of Protein Science, Division of Nanobiotechnology, KTH Royal Institute of Technology, 171 65 Solna, SwedenMicro- and nanoplastics have become increasingly relevant as contaminants to be monitored due to their potential health effects and environmental impact. Nanoplastics, in particular, have been shown to be difficult to detect in drinking water, requiring new capture technologies. In this work, we applied the acoustofluidic seed particle method to capture nanoplastics in an optimized, tilted grid of silica clusters even at the high flow rate of 5 mL/min. Moreover, we achieved, using this technique, the enrichment of nanoparticles ranging from 500 nm to 25 nm as a first in the field. We employed fluorescence to observe the enrichment profiles according to size, using a washing buffer flow at 0.5 mL/min, highlighting the size-dependent nature of the silica seed particle release of various sizes of nanoparticles. These results highlight the versatility of acoustic trapping for a wide range of nanoplastic particles and allow further study into the complex dynamics of the seed particle method at these size ranges. Moreover, with reproducible size-dependent washing curves, we provide a new window into the rate of nanoplastic escape in high-capacity acoustic traps, relevant to both environmental and biomedical applications.https://www.mdpi.com/2072-666X/15/12/1487acoustofluidicsseed particle methodsilica-enhanced seed particle methodmicroplasticsnanoplasticsacoustic trap |
| spellingShingle | Martim Costa Liselotte van der Geer Miguel Joaquim B. Hammarström S. Tanriverdi H. N. Joensson M. Wiklund A. Russom EchoTilt: An Acoustofluidic Method for the Capture and Enrichment of Nanoplastics Directed Toward Drinking Water Monitoring Micromachines acoustofluidics seed particle method silica-enhanced seed particle method microplastics nanoplastics acoustic trap |
| title | EchoTilt: An Acoustofluidic Method for the Capture and Enrichment of Nanoplastics Directed Toward Drinking Water Monitoring |
| title_full | EchoTilt: An Acoustofluidic Method for the Capture and Enrichment of Nanoplastics Directed Toward Drinking Water Monitoring |
| title_fullStr | EchoTilt: An Acoustofluidic Method for the Capture and Enrichment of Nanoplastics Directed Toward Drinking Water Monitoring |
| title_full_unstemmed | EchoTilt: An Acoustofluidic Method for the Capture and Enrichment of Nanoplastics Directed Toward Drinking Water Monitoring |
| title_short | EchoTilt: An Acoustofluidic Method for the Capture and Enrichment of Nanoplastics Directed Toward Drinking Water Monitoring |
| title_sort | echotilt an acoustofluidic method for the capture and enrichment of nanoplastics directed toward drinking water monitoring |
| topic | acoustofluidics seed particle method silica-enhanced seed particle method microplastics nanoplastics acoustic trap |
| url | https://www.mdpi.com/2072-666X/15/12/1487 |
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