Author, as appears in the article.: Campas, Monica; Rambla-Alegre, Maria; Wiren, Charlotta; Alcaraz, Carles; Rey, Maria; Safont, Anna; Diogene, Jorge; Torrens, Mabel; Fragoso, Alex
Department: Enginyeria Química
URV's Author/s: CAMPAS HOMS, MONICA / Fragoso Sierra, Alex / TORRENS DEL VALLE, MABEL
Keywords: Tandem mass spectrometry Supramolecular carrier systems Prorocentrum lima Polymers Pectenotoxin-2 (ptx2) Okadaic acid (oa) Okadaic acid Mediterranean sea Marine toxins Dinophysistoxin-1 (dtx1) Dinophysis sacculus Dinoflagellida Cyclodextrins Cyclodextrin Chromatography, liquid shellfish seawater prorocentrum lima profile pectenotoxin-2 (ptx2) okadaic acid (oa) okadaic acid mussels monitoring tool identification dinophysistoxin-1 (dtx1) dinophysis sacculus amperometric immunosensor adsorption
Abstract: Cyclodextrins, cyclic oligomers that form a conical structure with an internal cavity, are proposed as new and sustainable materials for passive sampling of lipophilic marine toxins. Two applicability scenarios have been tested. First, disks containing β-cyclodextrin-hexamethylene diisocyanate (β-CD-HDI) and β-cyclodextrin-epichlorohydrin (β-CD-EPI) polymers were immersed in Prorocentrum lima cultures for different days (2, 12 and 40). LC-MS/MS analysis showed capture of free okadaic acid (OA) and dinophysistoxin-1 (DTX1) by cyclodextrins at contents that increased with immersion time. Cyclodextrins resulted more efficient in capturing DTX1 than OA. In a second experiment, disks containing β-CD-HDI, β-CD-EPI, γ-CD-HDI and γ-CD-EPI were deployed in harbor waters of El Masnou (NW Mediterranean Sea) during a Dinophysis sacculus bloom in February 2020. Free OA and pectenotoxin-2 (PTX2) were captured by cyclodextrins. Toxin contents were higher at sampling points and sampling weeks with higher D. sacculus cell abundance. In this case, PTX2 capture with cyclodextrins was more efficient than OA capture. Therefore, cyclodextrins have provided information regarding the toxin profile of a P. lima strain and the spatial and temporal dynamics of a D. sacculus bloom, proven efficient as passive sampling materials for environmental monitoring.
Thematic Areas: Zootecnia / recursos pesqueiros Saúde coletiva Química Public health, environmental and occupational health Pollution Odontología Nutrição Medicine (miscellaneous) Medicina veterinaria Medicina ii Medicina i Materiais Interdisciplinar Health, toxicology and mutagenesis Geociências General chemistry Farmacia Environmental sciences Environmental engineering Environmental chemistry Ensino Engenharias iii Engenharias ii Engenharias i Educação física Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Chemistry (miscellaneous) Chemistry (all) Biotecnología Biodiversidade Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: monica.campas@urv.cat alex.fragoso@urv.cat
Author identifier: 0000-0002-1220-7100 0000-0003-4839-6094
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Chemosphere. 285 131464-
APA: Campas, Monica; Rambla-Alegre, Maria; Wiren, Charlotta; Alcaraz, Carles; Rey, Maria; Safont, Anna; Diogene, Jorge; Torrens, Mabel; Fragoso, Alex (2021). Cyclodextrin polymers as passive sampling materials for lipophilic marine toxins in Prorocentrum lima cultures and a Dinophysis sacculus bloom in the NW Mediterranean Sea. Chemosphere, 285(), 131464-. DOI: 10.1016/j.chemosphere.2021.131464
Entity: Universitat Rovira i Virgili
Journal publication year: 2021
Publication Type: Journal Publications
Repositori URV