{"entity": "researcher", "timestamp": "2026-08-20T20:43:58.038Z", "family": "Costa", "given": "Martim", "initials": "M", "orcid": "0000-0003-2675-9253", "affiliations": ["KTH Royal Institute of Technology, Division of Nanobiotechnology, Department of Protein Science, Science for Life Laboratory, 171 65 Solna, Sweden."], "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/researcher/f23b832326f446df963986a0266627c4.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/researcher/f23b832326f446df963986a0266627c4"}}, "publications": [{"entity": "publication", "iuid": "b92a2cc6e68c477a8f71cc65b1b2ab25", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/b92a2cc6e68c477a8f71cc65b1b2ab25.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/b92a2cc6e68c477a8f71cc65b1b2ab25"}}, "title": "EchoTilt: An Acoustofluidic Method for the Capture and Enrichment of Nanoplastics Directed Toward Drinking Water Monitoring.", "authors": [{"family": "Costa", "given": "Martim", "initials": "M", "orcid": "0000-0003-2675-9253", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/f23b832326f446df963986a0266627c4.json"}}, {"family": "van der Geer", "given": "Liselotte", "initials": "L"}, {"family": "Joaquim", "given": "Miguel", "initials": "M"}, {"family": "Hammarstr\u00f6m", "given": "B", "initials": "B"}, {"family": "Tanriverdi", "given": "S", "initials": "S"}, {"family": "Joensson", "given": "H N", "initials": "HN"}, {"family": "Wiklund", "given": "M", "initials": "M", "orcid": "0000-0002-3247-1945", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/a287459b32984379afc72c507bc44015.json"}}, {"family": "Russom", "given": "A", "initials": "A", "orcid": "0000-0002-0242-358X", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/8939625551d5409aac4593329e2a6578.json"}}], "type": "journal article", "published": "2024-12-11", "journal": {"title": "Micromachines (Basel)", "issn": "2072-666X", "volume": "15", "issue": "12", "issn-l": "2072-666X"}, "abstract": "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.", "doi": "10.3390/mi15121487", "pmid": "39770240", "labels": [], "xrefs": [{"db": "pmc", "key": "PMC11728305"}, {"db": "pii", "key": "mi15121487"}], "notes": [], "created": "2026-08-20T13:42:29.428Z", "modified": "2026-08-20T13:42:29.515Z"}, {"entity": "publication", "iuid": "7d13e7b28b2742b28712958d1d644faa", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/7d13e7b28b2742b28712958d1d644faa.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/7d13e7b28b2742b28712958d1d644faa"}}, "title": "EchoGrid: High-Throughput Acoustic Trapping for Enrichment of Environmental Microplastics.", "authors": [{"family": "Costa", "given": "Martim", "initials": "M", "orcid": "0000-0003-2675-9253", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/f23b832326f446df963986a0266627c4.json"}}, {"family": "Hammarstr\u00f6m", "given": "Bj\u00f6rn", "initials": "B", "orcid": "0000-0002-3422-1325", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/135608f03afa4607b4b0d2d466620036.json"}}, {"family": "van der Geer", "given": "Liselotte", "initials": "L"}, {"family": "Tanriverdi", "given": "Selim", "initials": "S"}, {"family": "Joensson", "given": "Haakan N", "initials": "HN"}, {"family": "Wiklund", "given": "Martin", "initials": "M"}, {"family": "Russom", "given": "Aman", "initials": "A"}], "type": "journal article", "published": "2024-06-11", "journal": {"title": "Anal. Chem.", "issn": "1520-6882", "volume": "96", "issue": "23", "pages": "9493-9502", "issn-l": "0003-2700"}, "abstract": "The health hazards of micro- and nanoplastic contaminants in drinking water has recently emerged as an area of concern to policy makers and industry. Plastic contaminants range in size from micro- (5 mm to 1 \u03bcm) to nanoplastics (<1 \u03bcm). Microfluidics provides many tools for particle manipulation at the microscale, particularly in diagnostics and biomedicine, but has in general a limited capacity to process large volumes. Drinking water and environmental samples with low-level contamination of microplastics require processing of deciliter to liter sample volumes to achieve statistically relevant particle counts. Here, we introduce the EchoGrid, an acoustofluidics device for high throughput continuous flow particle enrichment into a robust array of particle clusters. The EchoGrid takes advantage of highly efficient particle capture through the integration of a micropatterned transducer for surface displacement-based acoustic trapping in a glass and polymer microchannel. Silica seed particles were used as anchor particles to improve capture performance at low particle concentrations and high flow rates. The device was able to maintain the silica grids at a flow rate of 50 mL/min. In terms of enrichment, the device is able to double the final pellet's microplastic concentration every 78 s for 23 \u03bcm particles and every 51 s for 10 \u03bcm particles at a flow rate of 5 mL/min. In conclusion, we demonstrate the usefulness of the EchoGrid by capturing microplastics in challenging conditions, such as large sample volumes with low microparticle concentrations, without sacrificing the potential of integration with downstream analysis for environmental monitoring.", "doi": "10.1021/acs.analchem.4c00933", "pmid": "38790145", "labels": [], "xrefs": [{"db": "pmc", "key": "PMC11170556"}], "notes": [], "created": "2026-08-20T08:08:41.641Z", "modified": "2026-08-20T08:08:41.759Z"}]}