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Herein, a new\u00a0class of pH\u2010responsive and recyclable hydrogels with versatile gas\u2010releasing and scavenging properties is reported, utilizing pH changes to reversibly control disassembly and reassembly of the hydrogel network. The initial hydrogels are constructed via the one\u2010pot radical polymerization and contain dynamic molecular networks based on hydrophobic interactions, which can disassemble when the materials are placed in low pH solutions. The disassembled copolymer chains can reform hydrogels, following supplementation with fresh mineral salts and micelle monomers in neutral solutions. Moreover, the mineral salts used to reform hydrogels can function as gas donors or scavengers, endowing these hydrogels with versatile gas\u2010releasing and consuming properties. Overall, this research provides a facile and environmentally friendly method to recycle hydrogels with gas\u2010releasing and gas\u2010scavenging properties, which have potential applications in diverse fields, including wound healing, wastewater management, and gas therapy for diseases.<\/jats:p>","DOI":"10.1002\/marc.202300008","type":"journal-article","created":{"date-parts":[[2023,2,18]],"date-time":"2023-02-18T18:30:03Z","timestamp":1676745003000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["pH\u2010Responsive and Recyclable Hydrogels for Gas Releasing and Scavenging"],"prefix":"10.1002","volume":"44","author":[{"given":"Xiaozhuang","family":"Zhou","sequence":"first","affiliation":[{"name":"Department of Radiation Oncology, College of Medicine The Ohio State University  Columbus Ohio 43210 United States"},{"name":"Center for Cancer Metabolism, James Comprehensive Cancer Center The Ohio State University  Columbus Ohio 43210 United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shruthi","family":"Kandalai","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, College of Medicine The Ohio State University  Columbus Ohio 43210 United States"},{"name":"Center for Cancer Metabolism, James Comprehensive Cancer Center The Ohio State University  Columbus Ohio 43210 United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Farzana","family":"Hossain","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, College of Medicine The Ohio State University  Columbus Ohio 43210 United States"},{"name":"Center for Cancer Metabolism, James Comprehensive Cancer Center The Ohio State University  Columbus Ohio 43210 United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, College of Medicine The Ohio State University  Columbus Ohio 43210 United States"},{"name":"Center for Cancer Metabolism, James Comprehensive Cancer Center The Ohio State University  Columbus Ohio 43210 United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huapeng","family":"Li","sequence":"additional","affiliation":[{"name":"Molecular, Cellular, and Developmental Biology Graduate Program The Ohio State University  Columbus Ohio 43210 United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8397-3507","authenticated-orcid":false,"given":"Qingfei","family":"Zheng","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, College of Medicine The Ohio State University  Columbus Ohio 43210 United States"},{"name":"Center for Cancer Metabolism, James Comprehensive Cancer Center The Ohio State University  Columbus Ohio 43210 United States"},{"name":"Molecular, Cellular, and Developmental Biology Graduate Program The Ohio State University  Columbus Ohio 43210 United States"},{"name":"Department of Biological Chemistry and Pharmacology, College of Medicine The Ohio State University  Columbus Ohio 43210 United States"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,2,27]]},"reference":[{"key":"e_1_2_8_1_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201600871"},{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemmater.1c04396"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsmacrolett.0c00582"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41570-017-0046"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/marc.202000415"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1038\/nphoton.2012.146"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41578-020-0190-4"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.macromol.9b01359"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1039\/C6TA02662A"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1039\/c2cc34701f"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/advs.201801664"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.201907064"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1039\/b713009k"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsmacrolett.5b00501"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201916058"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201606100"},{"key":"e_1_2_8_17_1","doi-asserted-by":"crossref","unstructured":"A. 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