{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T05:19:49Z","timestamp":1790140789418,"version":"4.0.1"},"reference-count":64,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2022,11,28]],"date-time":"2022-11-28T00:00:00Z","timestamp":1669593600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003329","name":"Spanish Ministry of Economy and Competitiveness","doi-asserted-by":"publisher","award":["MAT2016-78155-C2-1-R"],"award-info":[{"award-number":["MAT2016-78155-C2-1-R"]}],"id":[{"id":"10.13039\/501100003329","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>Magnetic nanoparticles (MNPs) were \u201cgreen\u201d synthesized from a FeCl3\/FeSO4\/CoCl2 mixture using ethanolic extracts of Artemisia tilesii Ledeb \u2018hairy\u2019 roots. The effect of chemical composition and reducing power of ethanolic extracts on the morphology, size destribution and other features of obtained MNPs was evaluated. Depending on the extract properties, nanosized magnetic materials of spherical (8\u201311 nm), nanorod-like (15\u201324 nm) and cubic (14\u201324 nm) shapes were obtained via self-assembly. Microspherical MNPs composed of nanoclusters were observed when using extract of the control root line in the synthesis. Polyhedral magnetic nanoparticles with an average size of ~30 nm were formed using \u2018hairy\u2019 root ethanolic extract without any additive. Studied samples manifested excellent magnetic characteristics. Field-dependent magnetic measurements of most MNPs demonstrated a saturation magnetization of 42.0\u201372.9 emu\/g with negligible coercivity (\u223c0.02\u20130.29 emu\/g), indicating superparamagnetic behaviour only for solids with a magnetite phase. The synthesized MNPs were minimally aggregated and well-dispersed in aqueous medium, probably due to their stabilization by bioactive compounds in the initial extract. The nanoparticles were tested for magnetic solid-phase extraction of copper (Cu), cadmium (Cd) and arsenic (As) pollutants in aqueous solution, followed by ICP-OES analysis. The magnetic oxides, mainly magnetite, showed high adsorption capacity and effectively removed arsenic ions at pH 6.7. The maximum adsorption capacity was ~150 mg\/g for As(III, V) on the selected MNPs with cubic morphology, which is higher than that of previously reported adsorbents. The best adsorption was achieved using Fe3O4-based nanomaterials with low crystallinity, non-spherical form and a large number of surface-localized organic molecules. The phytotoxicity of the obtained MNPs was estimated in vitro using lettuce and chicory as model plants. The obtained MNPs did not exhibit inhibitory activity. This work provides novel insights on the morphology of \u201cgreen\u201d synthesized magnetic nanoparticles that can be used for applications in adsorption technologies.<\/jats:p>","DOI":"10.3390\/nano12234231","type":"journal-article","created":{"date-parts":[[2022,11,28]],"date-time":"2022-11-28T07:38:49Z","timestamp":1669621129000},"page":"4231","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Morphology-Controlled Green Synthesis of Magnetic Nanoparticles Using Extracts of \u2018Hairy\u2019 Roots: Environmental Application and Toxicity Evaluation"],"prefix":"10.3390","volume":"12","author":[{"given":"Natalia","family":"Kobylinska","sequence":"first","affiliation":[{"name":"Dumansky Institute of Colloid and Water Chemistry, National Academy of Science of Ukraine, 42 Akad. Vernadskoho Blvd., 03142 Kyiv, Ukraine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dmytro","family":"Klymchuk","sequence":"additional","affiliation":[{"name":"Kholodny Institute of Botany, National Academy of Science of Ukraine, 2 Tereshchenkivska Str., 02000 Kyiv, Ukraine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olena","family":"Khaynakova","sequence":"additional","affiliation":[{"name":"Faculty of Chemistry, University of Oviedo, 8 Juli\u00e1n Claveria Av., 33006 Oviedo, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Volodymyr","family":"Duplij","sequence":"additional","affiliation":[{"name":"Institute of Cell Biology and Genetic Engineering, National Academy of Science of Ukraine, 148 Zabolotnogo Str., 03143 Kyiv, Ukraine"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nadiia","family":"Matvieieva","sequence":"additional","affiliation":[{"name":"Institute of Cell Biology and Genetic Engineering, National Academy of Science of Ukraine, 148 Zabolotnogo Str., 03143 Kyiv, Ukraine"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"187","DOI":"10.1016\/j.eti.2018.05.006","article-title":"Water Purification by Using Adsorbents: A Review","volume":"11","author":"Singh","year":"2018","journal-title":"Environ. 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