{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T14:00:34Z","timestamp":1790172034565,"version":"4.1.0"},"reference-count":74,"publisher":"Wiley","issue":"18","license":[{"start":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T00:00:00Z","timestamp":1786924800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T00:00:00Z","timestamp":1786924800000},"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 Methods"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Incorporating high\u2010density mesoporosity into single crystals has long posed a fundamental challenge, as traditional pore\u2010engineering methods inevitably impair long\u2010range crystalline order. Here, we repurpose an inherent crystallographic defect\u2014the Jahn\u2013Teller distortion (JTD)\u2014as a programmable tool for encoding mesoporosity within monodisperse metal\u2013organic framework (MOF) single crystals. As proof of concept, by incorporating metastable Mn\n                    <jats:sup>3+<\/jats:sup>\n                    ions and regulating their releasing from lattice through simple kinetic levers (time and temperature), we can directly \u201cwrite\u201d an interconnected mesopore network with tunable pore size of 5\u201330\u00a0nm into uniform Prussian blue analogs (PBAs) single crystals (37\u2013272\u00a0nm) while completely retaining their structural integrity. This internally encoded porosity enhances mass transport and confines reactive intermediates, boosting catalytic efficiency as demonstrated for ciprofloxacin oxidation. Time\u2010resolved X\u2010ray Absorption Fine Structure (XAFS) spectroscopy reveals the atomic scale origin of this process: contraction of the Mn\u2010N bond from 1.46 to 1.39 \u00c5 directly links the relief of JTD strain to pore evolution. Thus, simple kinetic parameters such as temperature and time function as powerful and readily adjustable handles for precise porosity programming. This work may offer a generalizable strategy for rationally engineering porosity in a wide range of crystalline materials, with promising implications for sustainable energy and environmental applications.\n                  <\/jats:p>","DOI":"10.1002\/smtd.70795","type":"journal-article","created":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T08:21:59Z","timestamp":1786954919000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Programming High\u2010Density Mesoporosity in Monodispersed MOF Single Crystals via Inherent Jahn\u2013Teller Distortion"],"prefix":"10.1002","volume":"10","author":[{"given":"Shuqi","family":"Lu","sequence":"first","affiliation":[{"name":"College of Materials Science and Engineering Fuzhou University  Minhou Fujian China"},{"name":"Key Laboratory of Advanced Materials Technology Fuzhou University  Fuzhou 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