An eco-designed paper-based algal biosensor for nanoformulated herbicide optical detection

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dc.contributor.authorScognamiglio, Viviana
dc.contributor.authorAntonacci, Amina
dc.contributor.authorArduini, Fabiana
dc.contributor.authorMoscone, Danila
dc.contributor.authorCampos, Estefania V. R.
dc.contributor.authorFraceto, Leonardo Fernandes [UNESP]
dc.contributor.authorPalleschi, Giuseppe
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2019-08-23T17:53:29Z
dc.date.available2019-08-23T17:53:29Z
dc.date.issued2019-07
dc.description.abstractIn this study we reported the development of a paper-based algal biosensor for the optical detection of nanoencapsulated-atrazine, a forefront nanoformulated herbicide with a high effective postemergence herbicidal activity. In particular, the unicellular green photosynthetic algae Chlamydomonas reinhardtii was immobilised on a paper substrate soaked with an agar thin film and placed in a glass optical measurement cell, obtaining a totally environmental-friendly device. Nanoencapsulated-atrazine was detected by following the variable fluorescence (1-VJ) parameter, which decreased inversely proportional to the herbicide concentrations, in a range between 0.5 and 200 nM, indicating a linear relationship in the measured dose-response curves and a detection limit of 4 pM. Interference studies resulted in a very slight interference in presence of 0.5 ppm copper and 10 ppb arsenic at safety limits, as well as a slight matrix effect and a satisfactory recovery value of 96 ± 5 % for 75 nM nanoencapsulated-atrazine in tap water. Stability studies were also performed obtaining a good storage stability up to 3 weeks. Results demonstrated the suitability of the proposed paper-based optical biosensor as a valid support in smart agriculture for on site, environmentally friendly, cost effective and sensitive nanoencapsulated-atrazine analysisen
dc.description.affiliationInstitute of Crystallography, National Research Council, Department of Chemical Sciences and Materials Technologies
dc.description.affiliationDepartment of Chemical Science and Technologies, Università di Roma Tor Vergata
dc.description.affiliationSão Paulo State University (UNESP), Institute of Science and Technology of Sorocaba, Laboratory of Environmental Nanotechnology
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2017/21004-5
dc.description.versionPreprintpt
dc.identifier.citationJournal of Hazardous Materials, v. 373, p. 483-492, p. 2019
dc.identifier.doi10.1016/j.jhazmat.2019.03.082
dc.identifier.issn0304-3894pt
dc.identifier.lattes8897252224945665
dc.identifier.lattes4741480538883395
dc.identifier.orcid0000-0002-2827-2038
dc.identifier.urihttp://hdl.handle.net/11449/183289
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofJournal of Hazardous Materialsen
dc.rights.accessRightsAcesso aberto
dc.subjectPaper-based algal biosensoren
dc.subjectChlamydomonas reinhardtiien
dc.subjectChlorophyll fluorescenceen
dc.subjectNanoencapsulated-atrazineen
dc.subjectSustainable agricultureen
dc.titleAn eco-designed paper-based algal biosensor for nanoformulated herbicide optical detectionen
dc.typeArtigo
unesp.author.lattes4741480538883395[6]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, Sorocabapt

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