{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,19]],"date-time":"2026-06-19T19:37:47Z","timestamp":1781897867061,"version":"3.54.5"},"reference-count":63,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2022,5,27]],"date-time":"2022-05-27T00:00:00Z","timestamp":1653609600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Romanian NationalResearch Program NUCLEU","award":["PN 19060204"],"award-info":[{"award-number":["PN 19060204"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Membranes"],"abstract":"<jats:p>The bio-medical benefits of silver ions and 10\u2013undecenoic acid in various chemical-pharmaceutical preparations are indisputable, thus justifying numerous research studies on delayed and\/or controlled release. This paper presents the effect of the polymer matrix in the simultaneous release of silver ions and 10\u2013undecenoic acid in an aqueous medium of controlled pH and ionic strength. The study took into consideration polymeric matrices consisting of cellulose acetate (CA) and polysulfone (PSf), which were impregnated with oxide nanoparticles containing silver and 10\u2013undecenoic acid. The studied oxide nanoparticles are nanoparticles of iron and silver oxides obtained by an accessible electrochemical method. The obtained results show that silver can be released, simultaneously with 10\u2013undecenoic acid, from an impregnated polymeric membrane, at concentrations that ensure the biocidal and fungicidal capacity. Concentrations of active substances can be controlled by choosing the polymer matrix or, in some cases, by changing the pH of the target medium. In the studied case, higher concentrations of silver ions are released from the polysulfone matrix, while higher concentrations of 10\u2013undecenoic acid are released from the cellulose acetate matrix. The results of the study show that a correlation can be established between the two released target substances, which is dependent on the solubility of the organic compound in the aqueous medium and the interaction of this compound with the silver ions. The ability of 10\u2013undecenoic acid to interact with the silver ion, both through the carboxyl and alkene groups, contributes to the increase in the content of the silver ions transported in the aqueous medium.<\/jats:p>","DOI":"10.3390\/membranes12060557","type":"journal-article","created":{"date-parts":[[2022,5,28]],"date-time":"2022-05-28T01:40:45Z","timestamp":1653702045000},"page":"557","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Simultaneous Release of Silver Ions and 10\u2013Undecenoic Acid from Silver Iron\u2013Oxide Nanoparticles Impregnated Membranes"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7148-926X","authenticated-orcid":false,"given":"Gheorghe","family":"Nechifor","sequence":"first","affiliation":[{"name":"Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandra Raluca","family":"Grosu","sequence":"additional","affiliation":[{"name":"Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreea","family":"Ferencz (Dinu)","sequence":"additional","affiliation":[{"name":"Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Szidonia-Katalin","family":"Tanczos","sequence":"additional","affiliation":[{"name":"Department of Bioengineering, University Sapientia of Miercurea-Ciuc, 500104 Miercurea-Ciuc, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandru","family":"Goran","sequence":"additional","affiliation":[{"name":"Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4263-7048","authenticated-orcid":false,"given":"Vlad-Alexandru","family":"Grosu","sequence":"additional","affiliation":[{"name":"Department of Electronic Technology and Reliability, Faculty of Electronics, Telecommunications and Information Technology, University Politehnica of Bucharest, 061071 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3236-1292","authenticated-orcid":false,"given":"Simona Gabriela","family":"Bung\u0103u","sequence":"additional","affiliation":[{"name":"Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3414-2739","authenticated-orcid":false,"given":"Florentina Mihaela","family":"P\u0103ncescu","sequence":"additional","affiliation":[{"name":"Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6082-830X","authenticated-orcid":false,"given":"Paul Constantin","family":"Albu","sequence":"additional","affiliation":[{"name":"Radioisotopes and Radiation Metrology Department (DRMR), IFIN Horia Hulubei, 023465 M\u0103gurele, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8891-8948","authenticated-orcid":false,"given":"Aurelia Cristina","family":"Nechifor","sequence":"additional","affiliation":[{"name":"Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,5,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"211","DOI":"10.1016\/j.jconrel.2005.09.038","article-title":"The role of polymer membrane formation in sustained release drug delivery systems","volume":"109","author":"McHugh","year":"2005","journal-title":"J. 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