Methamphetamine Removal from Aquatic Environments by Magnetic Microrobots with Cyclodextrin Chiral Recognition Elements

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dc.contributor.authorMayorga Burrezo, Paulacs
dc.contributor.authorMayorga-Martinez, Carmen C.cs
dc.contributor.authorKuchaƙ, Martincs
dc.contributor.authorPumera, Martincs
dc.coverage.issue26cs
dc.coverage.volume20cs
dc.date.accessioned2025-02-03T14:50:38Z
dc.date.available2025-02-03T14:50:38Z
dc.date.issued2024-06-01cs
dc.description.abstractThe growing consumption of drugs of abuse together with the inefficiency of the current wastewater treatment plants toward their presence has resulted in an emergent class of pollutants. Thus, the development of alternative approaches to remediate this environmental threat is urgently needed. Microrobots, combining autonomous motion with great tunability for the development of specific tasks, have turned into promising candidates to take on the challenge. Here, hybrid urchin-like hematite (alpha-Fe2O3) microparticles carrying magnetite (Fe3O4) nanoparticles and surface functionalization with organic beta-cyclodextrin (CD) molecules are prepared with the aim of on-the-fly encapsulation of illicit drugs into the linked CD cavities of moving microrobots. The resulting mag-CD microrobots are tested against methamphetamine (MA), proving their ability for the removal of this psychoactive substance. A dramatically enhanced capture of MA from water with active magnetically powered microrobots when compared with static passive CD-modified particles is demonstrated. This work shows the advantages of enhanced mass transfer provided by the externally controlled magnetic navigation in microrobots that together with the versatility of their design is an efficient strategy to clean polluted waters. The study explores the use of magnetic cyclodextrin (CD) functionalized microrobots for cleaning water contaminated with drug residues, specifically methamphetamine. These microrobots, with a hematite/magnetite core and CD surface, enhance pollutant removal due to their combined magnetic movement and hydrophobic cavities of CDs on microrobot surfaces. The design emphasizes autonomous movement, improved mass transfer, and targeted functionalization for effective remediation.imageen
dc.formattextcs
dc.format.extent1-7cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationSmall. 2024, vol. 20, issue 26, p. 1-7.en
dc.identifier.doi10.1002/smll.202306943cs
dc.identifier.issn1613-6829cs
dc.identifier.orcid0000-0002-2747-9344cs
dc.identifier.orcid0000-0001-5846-2951cs
dc.identifier.other188956cs
dc.identifier.researcheridH-9267-2015cs
dc.identifier.researcheridF-2724-2010cs
dc.identifier.urihttps://hdl.handle.net/11012/249992
dc.language.isoencs
dc.publisherWileycs
dc.relation.ispartofSmallcs
dc.relation.urihttps://onlinelibrary.wiley.com/doi/10.1002/smll.202306943cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1613-6829/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectillicit drugsen
dc.subjectiron oxidesen
dc.subjectmagnetic actuationen
dc.subjectwater remediationen
dc.titleMethamphetamine Removal from Aquatic Environments by Magnetic Microrobots with Cyclodextrin Chiral Recognition Elementsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-188956en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:50:38en
sync.item.modts2025.01.31 08:32:09en
thesis.grantorVysokĂ© učenĂ­ technickĂ© v Brně. StƙedoevropskĂœ technologickĂœ institut VUT. Energie budoucnosti a inovacecs
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