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Platelet\u2010derived growth factor (PDGF) plays a pivotal role in regulating processes such as fibroblast migration, proliferation, and vascular formation during the wound healing process. The delivery of PDGF offers great potential for expediting the healing of chronic wounds. However, the clinical effectiveness of PDGF in chronic wound healing is significantly hampered by its inability to maintain a stable concentration at the wound site over an extended period. In this study, a controlled PDGF delivery system based on nanocapsules is proposed. In this system, PDGF is encapsulated within a degradable polymer shell. The release rate of PDGF from these nanocapsules can be precisely adjusted by controlling the ratios of two crosslinkers with different degradation rates within the shells. As demonstrated in a diabetic wound model, improved therapeutic outcomes with PDGF nanocapsules (nPDGF) treatment are observed. This research introduces a novel PDGF delivery platform that holds promise for enhancing the effectiveness of chronic wound healing.<\/jats:p>","DOI":"10.1002\/smll.202310743","type":"journal-article","created":{"date-parts":[[2024,1,24]],"date-time":"2024-01-24T02:37:42Z","timestamp":1706063862000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Platelet\u2010Derived Growth Factor Nanocapsules with Tunable Controlled Release for Chronic Wound Healing"],"prefix":"10.1002","volume":"20","author":[{"given":"Lin","family":"Tang","sequence":"first","affiliation":[{"name":"Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology  Beijing 100029 P. R. 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