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However, existing techniques for assessing membrane integrity often lack the ability to provide dynamic, whole-cell measurements and are limited to localized damage detection or population-level analysis. There is a growing need for methods capable of monitoring membrane integrity over time at the single-cell level and across the entire membrane surface. In this study, we present a microfluidic platform for real-time, label-free assessment of membrane integrity by analyzing dielectric properties. We apply this system to investigate how different aggregated forms of \u03b1-Synuclein (aSyn), a protein that plays a central role in the pathogenesis of Parkinson\u2019s disease and disrupts neuronal membranes. Our platform integrates electrokinetic microdevices with 3D microelectrodes and imaging, enabling continuous analysis of up to 30 live neuronal cells per hour in flow. By measuring electrorotation responses, we quantify changes in plasma membrane capacitance in response to monomeric, oligomeric, and fibrillar aSyn. This approach allows direct, time-resolved comparison of membrane-disruptive effects across different aSyn conformations with single-cell resolution and whole-membrane sensitivity.<\/jats:p>","DOI":"10.1038\/s41378-026-01209-0","type":"journal-article","created":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T02:13:09Z","timestamp":1781057589000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A microfluidic platform for whole-membrane integrity profiling in live neuronal cells"],"prefix":"10.1038","volume":"12","author":[{"given":"Till","family":"Ryser","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ata","family":"Krichene","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicol\u00f2","family":"Marchi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felix Rodriguez","family":"Espinal","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anne-Laure","family":"Mahul-Mellier","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hilal A.","family":"Lashuel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1745-7782","authenticated-orcid":false,"given":"Carlotta","family":"Guiducci","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,6,10]]},"reference":[{"key":"1209_CR1","doi-asserted-by":"publisher","first-page":"290","DOI":"10.1016\/j.biocel.2010.11.005","volume":"43","author":"DG Allen","year":"2011","unstructured":"Allen, D. 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