{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,6]],"date-time":"2026-11-06T16:35:48Z","timestamp":1793982948209,"version":"4.8.0"},"reference-count":36,"publisher":"Wiley","issue":"61","license":[{"start":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T00:00:00Z","timestamp":1787875200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T00:00:00Z","timestamp":1787875200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"published-print":{"date-parts":[[2026,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Triggered rupture in core\u2013shell capsules is particularly attractive for applications that require rapid response, irreversible operation, or high instantaneous output, such as burst release and catalytic processes. In most existing designs, however, both rupture activation and threshold tuning rely on stimuli\u2010responsive materials, which increases fabrication complexity and makes the triggering temperature largely dependent on the intrinsic thermal response of the chosen material. Here, we show that the thermal rupture threshold of sealed liquid\u2010core capsules can be programmed through capsule geometry without incorporating thermoresponsive additives. Pentaerythritol triacrylate (PETA)\u2010paraffin capsules with systematically varied core\u2013shell geometries are fabricated using an endocytosis\u2010like droplet\u2010impact route. Thermal loading induces internal pressurization within the confined core, and rupture occurs when the resulting shell stress exceeds the load\u2010bearing capacity of the shell. Experimental results and theoretical analysis support a pressure\u2010driven rupture mechanism and explain the geometry dependence of the triggering threshold. As a simple demonstration, capsule rupture is used to actuate an electrical switch, illustrating its potential as a one\u2010shot thermal response unit. This work establishes a structure\u2010driven route to programmed thermal rupture in capsules and highlights geometric confinement as a design principle for rupture\u2010based systems.<\/jats:p>","DOI":"10.1002\/smll.75468","type":"journal-article","created":{"date-parts":[[2026,8,29]],"date-time":"2026-08-29T04:36:05Z","timestamp":1787978165000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Synthesis of Tunable Core\u2013Shell Based Thermal Switch via \u2018Endocytosis\u2019 Process"],"prefix":"10.1002","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0723-004X","authenticated-orcid":false,"given":"Sihang","family":"Liu","sequence":"first","affiliation":[{"name":"Research Institute of Aero\u2010Engine Beihang University  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Jiang","sequence":"additional","affiliation":[{"name":"Research Institute of 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