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Among the diverse range of experimental and computational techniques, small-angle scattering emerges as a label-free, non-invasive method capable of probing membrane structures across length scales from micrometers to subnanometers. By exploiting the complementary contrasts of X-ray and neutron scattering, combined with advanced optimization algorithms, this approach has provided unique insights into membranes with well-defined lipid and protein architectures. In this review, we highlight recent studies from the Pabst Lab, including investigations of lipid domains, asymmetric lipid membranes, and intrinsic lipid curvature. Furthermore, we explore the functional implications of these findings, such as the activity of an integral membrane enzyme and the effects of antimicrobial peptides in live cells. These examples underscore the versatility of small-angle scattering techniques in elucidating membrane functions, offering valuable perspectives for understanding cellular processes and advancing pharmaceutical applications.<\/jats:p>","DOI":"10.1007\/s00249-025-01761-z","type":"journal-article","created":{"date-parts":[[2025,6,26]],"date-time":"2025-06-26T04:27:31Z","timestamp":1750912051000},"page":"799-811","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Inside the membrane: a closer look using elastic scattering techniques and friends"],"prefix":"10.1007","volume":"55","author":[{"given":"Michael","family":"Kaltenegger","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Enrico F.","family":"Semeraro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1967-1536","authenticated-orcid":false,"given":"Georg","family":"Pabst","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,6,26]]},"reference":[{"key":"1761_CR1","doi-asserted-by":"publisher","first-page":"33","DOI":"10.1042\/BSE0570033","volume":"57","author":"DG Ackerman","year":"2015","unstructured":"Ackerman DG, Feigenson GW (2015) Bilayer thickness mismatch controls domain size in model membranes. 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