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Blue luminescent amino-functionalized graphene quantum dots as a responsive material for potential detection of metal ions and malathion
dc.creator | Dorontić, S. | |
dc.creator | Bonasera, A. | |
dc.creator | Scopelliti, M. | |
dc.creator | Mojsin, Marija | |
dc.creator | Stevanović, Milena | |
dc.creator | Marković, O. | |
dc.creator | Jovanović, S. | |
dc.date.accessioned | 2022-11-15T15:29:21Z | |
dc.date.available | 2022-11-15T15:29:21Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 0022-2313 | |
dc.identifier.uri | https://imagine.imgge.bg.ac.rs/handle/123456789/1547 | |
dc.description.abstract | Large amounts of hazardous and toxic substances in the environment require non-toxic, cheap, easy, rapid, and sensitive methods for their detection. Blue luminescent graphene quantum dots (GQDs) were produced by electrochemical cleavage of graphite electrodes followed by gamma irradiation in the presence of ethylenediamine (EDA). Modified dots were able to detect metal ions (Co2+, Pd2+, Fe3+) due to photoluminescence quenching. The highest sensitivity was detected for the sample irradiated at a dose of 25 kGy. The limits of detection (LODs) were 1.79, 2.55, and 0.66 μmol L−1 for Co2+, Fe3+, and Pd2+, respectively. It was observed that GQDs irradiated at 200 kGy act as an ultra-sensitive turn-on probe for Malathion detection with LOD of 94 nmol L−1. Atomic force microscopy images proved the aggregation of GQDs in the presence of the investigated metal ions. Results obtained by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and LIVE/DEAD cytotoxicity test indicated that GQDs irradiated with EDA are not toxic towards MRC-5 cells, which makes them a promising, eco-friendly and safe material for sensing application. | en |
dc.publisher | Elsevier B.V. | |
dc.relation | The research was supported by the Science Fund of the Republic of Serbia , #7741955 , Are photoactive nanoparticles salvation for global infectional treath? - PHOTOGUN4MICROBES and by the Ministry of Education, Science and Technological Development of the Republic of Serbia [grant number 451-03-68/2022-14/200017 , 451-03-68/2022-14/200026 , and 451-03-68/2022-14/200042 ]. The Italian Ministry of University and Research (MURST, ex- MIUR ) is acknowledged by A.B. for funding his research activities (PON “AIM: Attrazione e Mobilità Internazionale”, call AIM1809078-2, CUP B78D19000280001). The Advanced Technologies Network ( ATeN ) Center (University of Palermo; project “Mediterranean Center for Human Health Advanced Biotechnologies ( CHAB )”, PON R&C 2007–2013) is also acknowledged for hospitality and service. | |
dc.relation.isversionof | https://imagine.imgge.bg.ac.rs/handle/123456789/1631 | |
dc.relation.isversionof | https://doi.org/10.1016/j.jlumin.2022.119311 | |
dc.rights | restrictedAccess | |
dc.source | Journal of Luminescence | |
dc.subject | Probe | en |
dc.subject | Photoluminescence | en |
dc.subject | Metal ions | en |
dc.subject | Malathion | en |
dc.subject | Gamma irradiation | en |
dc.subject | Amino-functionalized graphene quantum dots | en |
dc.title | Blue luminescent amino-functionalized graphene quantum dots as a responsive material for potential detection of metal ions and malathion | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.other | 252() | |
dc.citation.rank | M21 | |
dc.citation.volume | 252 | |
dc.description.other | Peer-reviewed manuscript: [https://imagine.imgge.bg.ac.rs/handle/123456789/1631] | |
dc.identifier.doi | 10.1016/j.jlumin.2022.119311 | |
dc.identifier.scopus | 2-s2.0-85138474663 | |
dc.type.version | publishedVersion |
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