{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T11:20:23Z","timestamp":1788866423674,"version":"build-2803163510"},"reference-count":54,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2025,5,30]],"date-time":"2025-05-30T00:00:00Z","timestamp":1748563200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Scientific and Technological Research Council of Turkey (TUB\u0130TAK)","award":["1919B012323317"],"award-info":[{"award-number":["1919B012323317"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Gels"],"abstract":"<jats:p>The release of synthetic dyes into the environment through industrial wastewater represents a significant environmental concern. In this study, a hydrophobic cryogel, Poly(2-hydroxyethyl methacrylate-N-methacryloyl-L-phenylalanine), was synthesized and employed for the efficient removal of methylene blue from aqueous solutions. The cryogel exhibited a surface area of 6.834 m2\/g and a water retention capacity of 218.6%. Adsorption experiments conducted under various conditions revealed a high adsorption capacity of 1304.6 mg\/g for MB. Thermodynamic analyses indicated that adsorption occurs spontaneously and follows a monolayer adsorption model. The adsorption capacity increased with temperature and ionic strength, confirming that hydrophobic forces predominantly drive the interaction. Reusability tests showed that the cryogel maintained its adsorption efficiency over five consecutive adsorption\u2013desorption cycles, with a desorption efficiency of up to 98%. These findings demonstrate that Poly(HEMA-MAPA) cryogel is a practical, reusable, and eco-friendly adsorbent for removing methylene blue, a common textile dye pollutant, from water systems.<\/jats:p>","DOI":"10.3390\/gels11060411","type":"journal-article","created":{"date-parts":[[2025,5,30]],"date-time":"2025-05-30T08:07:58Z","timestamp":1748592478000},"page":"411","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Amino Acid-Based Hydrophobic Cryogels for Efficient Methylene Blue Removal: A Reusable and Eco-Friendly Approach to Dye-Contaminated Wastewater Treatment"],"prefix":"10.3390","volume":"11","author":[{"given":"Merve","family":"Sofuo\u011flu","sequence":"first","affiliation":[{"name":"Department of Chemistry, Institute of Graduate Education, Hitit University, Corum 19030, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ali Ender","family":"Kuyucu","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Institute of Science, Y\u00fcz\u00fcnc\u00fc Y\u0131l University, Van 65080, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9158-6091","authenticated-orcid":false,"given":"Kadir","family":"Erol","sequence":"additional","affiliation":[{"name":"Department of Medical Services and Techniques, Health Services Vocational School, Hitit University, Corum 19030, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0275-3941","authenticated-orcid":false,"given":"Faruk","family":"G\u00f6kme\u015fe","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Faculty of Arts and Sciences, Hitit University, Corum 19040, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,5,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"130595","DOI":"10.1016\/j.chemosphere.2021.130595","article-title":"Effective water\/wastewater treatment methodologies for toxic pollutants removal: Processes and applications towards sustainable development","volume":"280","author":"Saravanan","year":"2021","journal-title":"Chemosphere"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"113160","DOI":"10.1016\/j.ecoenv.2021.113160","article-title":"A critical review on the treatment of dye-containing wastewater: Ecotoxicological and health concerns of textile dyes and possible remediation approaches for environmental safety","volume":"231","author":"Ali","year":"2022","journal-title":"Ecotoxicol. 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