{"id":166601,"date":"2025-06-09T20:39:34","date_gmt":"2025-06-09T17:39:34","guid":{"rendered":"https:\/\/www.vaikuttavuussaatio.fi\/?p=166601"},"modified":"2025-06-09T20:39:39","modified_gmt":"2025-06-09T17:39:39","slug":"impact-makers-remion-project-developed-novel-solutions-for-measuring-atmospheric-ultrafine-particles","status":"publish","type":"post","link":"https:\/\/www.vaikuttavuussaatio.fi\/en\/impact-makers-remion-project-developed-novel-solutions-for-measuring-atmospheric-ultrafine-particles\/","title":{"rendered":"Impact Makers: ReMION Project Developed Novel Solutions for Measuring Atmospheric Ultrafine Particles"},"content":{"rendered":"\n
<\/div>\n\n\n\n

The ReMION collaboration between the University of Helsinki and Karsa Ltd provided valuable insight into just how challenging it is to adapt laboratory instruments for long-term atmospheric measurements \u2013 and that led to a breakthrough. Thanks to FRIF\u2019s TIA Postdoc funding, the project was able to recruit a top expert from abroad.<\/p>\n\n\n\n

Project title<\/strong>: Resolving atmospheric ultrafine particle phase constituents with Karsa electrospray MION (ReMION)<\/p>\n\n\n\n

Project partners<\/strong>: Institute for Atmospheric and Earth System Research (INAR), University of Helsinki & Karsa Ltd<\/p>\n\n\n\n

Principal investigator of the project<\/strong>: Mikko Sipil\u00e4, University of Helsinki.<\/p>\n\n\n\n

FRIF funding awarded<\/strong>: \u20ac172,904<\/p>\n\n\n\n

The recently concluded ReMION project, led by the University of Helsinki, focused on studying atmospheric nanoparticles. The project also aimed to develop more precise measurement methods to determine what these particles are made of. The project\u2019s corporate partner was Karsa Ltd, whose measurement device was both studied and further developed as part of the collaboration.<\/p>\n\n\n\n

\u201cAtmospheric nanoparticles are significant because they affect air quality, human health, and the Earth\u2019s radiative balance. These particles can penetrate deep into the human lungs, which is why it is essential to know what they are made of,\u201d says Juha Kangasluoma<\/strong> from the University of Helsinki. Kangasluoma is a professor of aerosol physics and has been closely involved in the ReMION project throughout its entire lifecycle.<\/p>\n\n\n\n

\n
\"\"
Juha Kangasluoma, Professor of aerosol physics, University of Helsinki<\/figcaption><\/figure>\n<\/div><\/div><\/div>\n\n\n\n
<\/div>\n\n\n\n

A breakthrough via unexpected paths<\/h2>\n\n\n\n

The project originally aimed to develop a system based on the electrospray method to measure vapors evaporated from aerosol particles.<\/p>\n\n\n\n

Electrospray produces highly charged droplets, which generate a chemically well-controlled ion population as they evaporate. These ions are directed by electric fields into the same flow as the vapors evaporated from aerosol particles. The resulting clusters formed between ions and vapor molecules can then be detected using mass spectrometry.<\/p>\n\n\n\n

Along the way, the project team realized that applying electrospray to continuous measurements was more challenging than initially expected. In addition, integrating electrospray into the device would have made the system even more complex, so the team began developing alternative methods.<\/p>\n\n\n\n

\u201cDuring the project, we learned what doesn’t work \u2013 and that led us to a breakthrough. We figured out how to use a non-toxic solid that is safe for humans and also non-corrosive. You only need a milligram of it, and it can work for years without maintenance,\u201d says Aleksei Shcherbinin<\/strong>, Chief Product Officer of Karsa Ltd.<\/p>\n\n\n

\n
\"\"
Aleksei Shcherbinin<\/strong>, Chief Product Officer, Karsa Ltd<\/figcaption><\/figure>\n<\/div>\n\n\n
<\/div>\n\n\n\n

\u201cThis substance sublimates with the help of X-rays, allowing the formation of a chemically well-controlled ion population without the liquid and voltage control systems required by electrospray,\u201d explains Kangasluoma, describing the principle behind the method.<\/p>\n\n\n\n

The next step is to calibrate the developed measurement device to ensure it produces the most accurate results possible. The technology created in the project has already reached the field \u2013 INAR currently operates a device on the Atlantic coast of Ireland that measures atmospheric particles using findings from the ReMION project.<\/p>\n\n\n\n

In addition to its practical applications, the ReMION project also had significant academic value. So far, it has resulted in a research article<\/a> published in Analytical Chemistry, one of the most prestigious international journals in the field of analytical chemistry. A second article is currently under peer review in the same journal.<\/p>\n\n\n\n

Beyond scientific publications, ReMION has had a broader scientific impact. Two new research projects based on ReMION\u2019s results are currently under review at the Academy of Finland. In addition, Kangasluoma has submitted a project proposal to the European Research Council (ERC), also grounded in the outcomes of ReMION.<\/p>\n\n\n\n

The work to develop more precise methods for measuring atmospheric ultrafine particles is ongoing.<\/p>\n\n\n\n

<\/div>\n\n\n\n

FRIF funding enabled the recruitment of a top expert for the project<\/h2>\n\n\n\n

FRIF\u2019s TIA funding played a key role in the success of the ReMION project. It enabled the recruitment of a postdoctoral researcher, Henning Finkenzeller, from abroad. He was responsible for coordinating the collaboration between the University of Helsinki and Karsa Ltd. Even after the project\u2019s completion, he continues to work with both the University of Helsinki and Karsa.<\/p>\n\n\n\n

\u201cI think these kinds of programs are very important for attracting foreign talent and providing opportunities for companies \u2013 especially small ones like ours \u2013 to collaborate with universities,\u201d says Shcherbinin.<\/p>\n\n\n\n

\u201cOur project team is grateful to the foundation for the funding. It was absolutely crucial \u2013 without it, this project would not have happened in its current form,\u201d Kangasluoma concludes.<\/p>\n\n\n\n

FRIF\u2019s TIA Postdoc grants will be open for applications again in autumn 2026. <\/strong>Learn more about upcoming calls for proposals<\/strong><\/a>.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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The ReMION collaboration between the University of Helsinki and Karsa Ltd provided valuable insight into just how challenging it is to adapt laboratory instruments for long-term atmospheric measurements \u2013 and that led to a breakthrough. Thanks to FRIF\u2019s TIA Postdoc funding, the project was able to recruit a top expert from abroad.<\/p>\n","category_list_v2":"Blog<\/a>","author_info_v2":{"name":"vaikuttavuussaatio","url":"https:\/\/www.vaikuttavuussaatio.fi\/en\/author\/vaikuttavuussaatio\/"},"comments_num_v2":"0 comments","yoast_head":"\nImpact Makers: ReMION Project Developed Novel Solutions for Measuring Atmospheric Ultrafine Particles - Vaikuttavuussaatio<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vaikuttavuussaatio.fi\/en\/impact-makers-remion-project-developed-novel-solutions-for-measuring-atmospheric-ultrafine-particles\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Impact Makers: ReMION Project Developed Novel Solutions for Measuring Atmospheric Ultrafine Particles - Vaikuttavuussaatio\" \/>\n<meta property=\"og:description\" content=\"The ReMION collaboration between the University of Helsinki and Karsa Ltd provided valuable insight into just how challenging it is to adapt laboratory instruments for long-term atmospheric measurements \u2013 and that led to a breakthrough. 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