{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T22:49:38Z","timestamp":1788821378486,"version":"build-2803163510"},"reference-count":52,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2024,4,29]],"date-time":"2024-04-29T00:00:00Z","timestamp":1714348800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Science and Innovation (Agency State Research)","award":["MCIN\/AEI\/10.13039\/501100011033"],"award-info":[{"award-number":["MCIN\/AEI\/10.13039\/501100011033"]}]},{"name":"Ministry of Science and Innovation (Agency State Research)","award":["PID2020-117641RB-I00"],"award-info":[{"award-number":["PID2020-117641RB-I00"]}]},{"name":"Ministry of Science and Innovation (Agency State Research)","award":["P20_00556"],"award-info":[{"award-number":["P20_00556"]}]},{"name":"Junta de Andaluc\u00eda","award":["MCIN\/AEI\/10.13039\/501100011033"],"award-info":[{"award-number":["MCIN\/AEI\/10.13039\/501100011033"]}]},{"name":"Junta de Andaluc\u00eda","award":["PID2020-117641RB-I00"],"award-info":[{"award-number":["PID2020-117641RB-I00"]}]},{"name":"Junta de Andaluc\u00eda","award":["P20_00556"],"award-info":[{"award-number":["P20_00556"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Antibiotics"],"abstract":"<jats:p>Microplastics (MPs) and antibiotics are emerging pollutants widely found in aquatic environments, potentially causing environmental harm. MPs may act as carriers for antibiotics, affecting their environmental distribution. This study investigates the adsorption of four macrolide antibiotics and a metabolite onto two types of MPs: polyethylene terephthalate (PET) and polyethylene (PE). Results revealed a linear isotherm adsorption model, with higher adsorption to PET than to PE (R2 &gt; 0.936 for PE and R2 &gt; 0.910 for PET). Hydrophobic interactions and hydrogen bonding could be the main adsorption mechanisms, with pore filling potentially involved. Reduced particle size enhances adsorption due to the increase of active adsorption sites. This increasement is more pronounced in PE than in PET, leading to an 11.6% increase in the average adsorption of all macrolides to PE, compared to only 5.1% to PET. Dissolved organic matter inhibits adsorption (azithromycin adsorption to PE was reduced from 12% to 5.1%), while salinity enhances it just until 1% salinity. pH slightly influences adsorption, with maximal adsorption at neutral pH. Results in real samples showed that complexity of the matrix decreased adsorption. Overall, these findings indicate that PE and PET MPs can be a vector of macrolides in aquatic environments.<\/jats:p>","DOI":"10.3390\/antibiotics13050408","type":"journal-article","created":{"date-parts":[[2024,4,30]],"date-time":"2024-04-30T09:50:07Z","timestamp":1714470607000},"page":"408","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Adsorption of Macrolide Antibiotics and a Metabolite onto Polyethylene Terephthalate and Polyethylene Microplastics in Aquatic Environments"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7966-830X","authenticated-orcid":false,"given":"Carmen","family":"Mej\u00edas","sequence":"first","affiliation":[{"name":"Departamento de Qu\u00edmica Anal\u00edtica, Escuela Polit\u00e9cnica Superior, Universidad de Sevilla, E-41011 Seville, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3621-1291","authenticated-orcid":false,"given":"Julia","family":"Mart\u00edn","sequence":"additional","affiliation":[{"name":"Departamento de Qu\u00edmica Anal\u00edtica, Escuela Polit\u00e9cnica Superior, Universidad de Sevilla, E-41011 Seville, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4612-272X","authenticated-orcid":false,"given":"Laura","family":"Mart\u00edn-Pozo","sequence":"additional","affiliation":[{"name":"Departamento de Qu\u00edmica Anal\u00edtica, Escuela Polit\u00e9cnica Superior, Universidad de Sevilla, E-41011 Seville, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9704-1316","authenticated-orcid":false,"given":"Juan Luis","family":"Santos","sequence":"additional","affiliation":[{"name":"Departamento de Qu\u00edmica Anal\u00edtica, Escuela Polit\u00e9cnica Superior, Universidad de Sevilla, E-41011 Seville, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5468-9021","authenticated-orcid":false,"given":"Irene","family":"Aparicio","sequence":"additional","affiliation":[{"name":"Departamento de Qu\u00edmica Anal\u00edtica, Escuela Polit\u00e9cnica Superior, Universidad de Sevilla, E-41011 Seville, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1647-9226","authenticated-orcid":false,"given":"Esteban","family":"Alonso","sequence":"additional","affiliation":[{"name":"Departamento de Qu\u00edmica Anal\u00edtica, Escuela Polit\u00e9cnica Superior, Universidad de Sevilla, E-41011 Seville, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,4,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"414","DOI":"10.1007\/s42995-020-00056-w","article-title":"Environmental perspectives of microplastic pollution in the aquatic environment: A review","volume":"2","author":"Ahmad","year":"2020","journal-title":"Mar. 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