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Oxidized lipids undergo drastic conformational changes, compromising the mechanical integrity of the membrane and causing cell death. For giant unilamellar vesicles, a classic cell mimetic system, a range of mechanical responses under oxidative assault has been observed including formation of nanopores, transient micron\u2010sized pores, and total sudden catastrophic collapse (i.e., explosion). However, the physical mechanism regarding how lipid oxidation causes vesicles to explode remains elusive. Here, with light\u2010induced asymmetric oxidation experiments, the role of spontaneous curvature on vesicle instability and its link to the conformational changes of oxidized lipid products is systematically investigated. A comprehensive membrane model is proposed for pore\u2010opening dynamics incorporating spontaneous curvature and membrane curling, which captures the experimental observations well. The kinetics of lipid oxidation are further characterized and how light\u2010induced asymmetric oxidation generates spontaneous curvature in a non\u2010monotonic temporal manner is rationalized. Using the framework, a phase diagram with an analytical criterion to predict transient pore formation or catastrophic vesicle collapse is provided. The work can shed light on understanding biomembrane stability under oxidative assault and strategizing release dynamics of vesicle\u2010based drug delivery\u00a0systems.<\/jats:p>","DOI":"10.1002\/advs.202400504","type":"journal-article","created":{"date-parts":[[2024,8,13]],"date-time":"2024-08-13T05:11:36Z","timestamp":1723525896000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Curvature\u2010Assisted Vesicle Explosion Under Light\u2010Induced Asymmetric Oxidation"],"prefix":"10.1002","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6012-0181","authenticated-orcid":false,"given":"Vinit Kumar","family":"Malik","sequence":"first","affiliation":[{"name":"Department of Mechanical Science and Engineering University of Illinois Urbana\u2010Champaign  Urbana IL 61801 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"On 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