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Villalba A, Cecchetto F, Vazquez ND, Amarilla L, Ramirez CL, Galetto L, Maggi M, Miglioranza KSB. Contaminant dynamics in honey bees and hive products of apiaries from environmentally contrasting Argentinean regions. ENVIRONMENTAL RESEARCH 2024; 249:118306. [PMID: 38307184 DOI: 10.1016/j.envres.2024.118306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/04/2024]
Abstract
Argentina is a leading honey producer and honey bees are also critical for pollination services and wild plants. At the same time, it is a major crop producer with significant use of insecticides, posing risks to bees. Therefore, the presence of the highly toxic insecticide chlorpyrifos, and forbidden contaminants (organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs)) was investigated in honey bee, beebread, wax and honey samples in apiaries from three contrasting regions of Argentina. Chlorpyrifos was detected in all samples with higher levels during period 1 (spring) in contrast to period 2 (fall), agreeing with its season-wise use in different crops, reaching 3.05 ng/g in honey bees. A subsequent first-tier pesticide hazard analysis revealed that it was relevant to honey bee health, mainly due to the high concentrations found in wax samples from two sites, reaching 132.4 ng/g. In addition, wax was found to be the most contaminated matrix with a prevalence of OCPs (∑OCPs 58.23-172.99 ng/g). Beebread samples showed the highest concentrations and diversity of pesticide residues during period 1 (higher temperatures). A predominance of the endosulfan group was registered in most samples, consistent with its intensive past use, especially in Central Patagonia before its prohibition. Among the industrial compounds, lighter PCB congeners dominated, suggesting the importance of atmospheric transport. The spatio-temporal distribution of pesticides shows a congruence with the environmental characteristics of the areas where the fields are located (i.e., land use, type of productive activities and climatic conditions). Sustained monitoring of different pollutants in beekeeping matrices is recommended to characterize chemical risks, assess the health status of honey bee hives and the pollution levels of different agroecosystems. This knowledge will set a precedent for South America and be helpful for actions focused on the conservation of pollination services, apiculture and ecosystems in Argentina.
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Affiliation(s)
- Agustina Villalba
- Laboratory of Ecotoxicology and Environmental Contamination, Faculty of Exact and Natural Sciences (FCEyN), National University of Mar del Plata (UNMDP), Institute of Marine and Coastal Research (IIMyC), National Scientific and Technological Research Council (CONICET), Funes 3350, 7600, Mar del Plata, Argentina; Center for Research in Social Bees (CIAS), FCEyN, UNMdP, Institute for Research in Production, Health and Environment (IIPROSAM), CONICET, Partner Center of the Scientific Research Commission of the Province of Buenos Aires (CIC-PBA), Funes 3350, 7600, Mar del Plata, Argentina
| | - Franco Cecchetto
- Laboratory of Ecotoxicology and Environmental Contamination, Faculty of Exact and Natural Sciences (FCEyN), National University of Mar del Plata (UNMDP), Institute of Marine and Coastal Research (IIMyC), National Scientific and Technological Research Council (CONICET), Funes 3350, 7600, Mar del Plata, Argentina.
| | - Nicolas D Vazquez
- Laboratory of Ecotoxicology and Environmental Contamination, Faculty of Exact and Natural Sciences (FCEyN), National University of Mar del Plata (UNMDP), Institute of Marine and Coastal Research (IIMyC), National Scientific and Technological Research Council (CONICET), Funes 3350, 7600, Mar del Plata, Argentina; Laboratory of Cnidarian Biology, FCEyN, UNMDP, IIMyC, CONICET, Funes 3350, 7600, Mar del Plata, Argentina
| | - Leonardo Amarilla
- Department of Biological Diversity and Ecology, Faculty of Exact, Physic and Natural Sciences (FCEFyN), Universidad Nacional de Córdoba (UNC), Multidisciplinary Institute of Plant Biology (IMBIV), CONICET, Vélez Sarsfield 1611, 5000, Cordoba, Argentina
| | - Cristina L Ramirez
- Department of Chemistry and Biochemistry, FCEyN, UNMDP, Funes 3350, 7600, Mar del Plata, Argentina
| | - Leonardo Galetto
- Department of Biological Diversity and Ecology, Faculty of Exact, Physic and Natural Sciences (FCEFyN), Universidad Nacional de Córdoba (UNC), Multidisciplinary Institute of Plant Biology (IMBIV), CONICET, Vélez Sarsfield 1611, 5000, Cordoba, Argentina
| | - Matías Maggi
- Center for Research in Social Bees (CIAS), FCEyN, UNMdP, Institute for Research in Production, Health and Environment (IIPROSAM), CONICET, Partner Center of the Scientific Research Commission of the Province of Buenos Aires (CIC-PBA), Funes 3350, 7600, Mar del Plata, Argentina
| | - Karina S B Miglioranza
- Laboratory of Ecotoxicology and Environmental Contamination, Faculty of Exact and Natural Sciences (FCEyN), National University of Mar del Plata (UNMDP), Institute of Marine and Coastal Research (IIMyC), National Scientific and Technological Research Council (CONICET), Funes 3350, 7600, Mar del Plata, Argentina
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La Corte C, Dara M, Bertini F, Bisanti L, Cammarata M, Parisi MG. Sea anemones, methylmercury, and bacterial infection: A closer look at multiple stressors. MARINE POLLUTION BULLETIN 2024; 201:116287. [PMID: 38547612 DOI: 10.1016/j.marpolbul.2024.116287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/17/2024] [Accepted: 03/20/2024] [Indexed: 04/07/2024]
Abstract
Specimens of the Mediterranean sea anemone Anemonia viridis were exposed to methylmercury (MeHg) and bacterial infection to study their immune responses to a well-known toxic pollutant. Anemones were housed in laboratory conditions and divided into five experimental groups: 1. control (no microinjection); 2. filtered seawater + buffer injection; 3. filtered seawater + Escherichia coli injection; 4. MeHg + buffer injection; 5. MeHg + E. coli injection. Data showed an increase in antioxidant enzyme production compared to the constitutive condition, while methylmercury inhibited lysozyme production. The buffer inoculation had no statistically significant effects on the animals. In addition, electrophoretic and protease analyses revealed differences in the type of proteins produced, as well as a modulation of proteases depending on the treatment. The study demonstrated the immunomodulatory effect of the organic pollutant on A. viridis, validating its use as a model organism for marine coastal biomonitoring programmes and multiple stress studies.
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Affiliation(s)
- C La Corte
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences (DiSTeM), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; NBFC, National Biodiversity Future Center, Piazza Marina 61, Palermo 90133, Italy.
| | - M Dara
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences (DiSTeM), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; NBFC, National Biodiversity Future Center, Piazza Marina 61, Palermo 90133, Italy.
| | - F Bertini
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences (DiSTeM), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; NBFC, National Biodiversity Future Center, Piazza Marina 61, Palermo 90133, Italy.
| | - L Bisanti
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences (DiSTeM), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; NBFC, National Biodiversity Future Center, Piazza Marina 61, Palermo 90133, Italy.
| | - M Cammarata
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences (DiSTeM), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; NBFC, National Biodiversity Future Center, Piazza Marina 61, Palermo 90133, Italy.
| | - M G Parisi
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences (DiSTeM), University of Palermo, Viale delle Scienze, Ed. 16, 90128 Palermo, Italy; NBFC, National Biodiversity Future Center, Piazza Marina 61, Palermo 90133, Italy.
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Vazquez ND, Crupkin AC, Chierichetti MA, Acuña FH, Miglioranza KSB. Integrated biomarker responses in wild populations of the intertidal sea anemone Bunodosoma zamponii living under different anthropogenic pressures. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:26036-26051. [PMID: 38491242 DOI: 10.1007/s11356-024-32926-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
Bunodosoma zamponii is the most abundant anemone in Mar del Plata (Buenos Aires, Argentina). Given that the presence of persistent organic pollutants (organochlorine pesticides and PCBs) and the organophosphate pesticide chlorpyrifos has recently been reported in this species, two wild populations living under different anthropogenic pressures were studied and compared regarding basic aspects of their ecology and physiological response to oxidative stress. A population from an impacted site (Las Delicias, LD) and another from a reference site (Punta Cantera, PC) were monitored seasonally (spring, summer, autumn, and winter), for one year. Anemones from PC were larger and more abundant than those from LD for most sampling periods. During winter, glutathione-S-transferase and catalase activities were higher in LD. Moreover, protein content and antioxidant defenses were higher in anemones from PC during winter as well. Taking into account their ecology (size and abundance) and biomarker responses, the population from PC was comparatively healthier. Furthermore, such differences are in agreement with recent studies indicating a higher concentration of pollutants in anemones from LD (specially during the winter sampling). In this sense, considering that B. zamponii can bioaccumulate the aforementioned pollutants, its resilience to their presence, and the fact that biomarker response differed between sites, this species can be regarded as a proper sentinel species of environmental pollution. Overall, this anemone seems to be a good bioindicator to be considered in future biomonitoring and ecotoxicological studies.
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Affiliation(s)
- Nicolas D Vazquez
- Institute of Marine and Coastal Research, National Scientific and Technological Research Council, Mar del Plata, Buenos Aires, Argentina.
- Laboratory of Ecotoxicology and Environmental Contamination, Faculty of Exact and Natural Sciences, National University of Mar del Plata, Mar del Plata, Buenos Aires, Argentina.
- Laboratory of Cnidarian Biology, Faculty of Exact and Natural Sciences, National University of Mar del Plata, Mar del Plata, Buenos Aires, Argentina.
| | - Andrea C Crupkin
- Institute of Marine and Coastal Research, National Scientific and Technological Research Council, Mar del Plata, Buenos Aires, Argentina
- Laboratory of Ecotoxicology, Faculty of Exact and Natural Sciences, National University of Mar del Plata, Mar del Plata, Buenos Aires, Argentina
- Scientific Research Commission of the Province of Buenos Aires, Buenos Aires, Argentina
| | - Melisa A Chierichetti
- Institute of Marine and Coastal Research, National Scientific and Technological Research Council, Mar del Plata, Buenos Aires, Argentina
- Laboratory of Ecotoxicology and Environmental Contamination, Faculty of Exact and Natural Sciences, National University of Mar del Plata, Mar del Plata, Buenos Aires, Argentina
| | - Fabián H Acuña
- Institute of Marine and Coastal Research, National Scientific and Technological Research Council, Mar del Plata, Buenos Aires, Argentina
- Laboratory of Cnidarian Biology, Faculty of Exact and Natural Sciences, National University of Mar del Plata, Mar del Plata, Buenos Aires, Argentina
- Coiba Research Station (Coiba-AIP), Panama, Republic of Panama
| | - Karina S B Miglioranza
- Institute of Marine and Coastal Research, National Scientific and Technological Research Council, Mar del Plata, Buenos Aires, Argentina
- Laboratory of Ecotoxicology and Environmental Contamination, Faculty of Exact and Natural Sciences, National University of Mar del Plata, Mar del Plata, Buenos Aires, Argentina
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Gordillo L, Quiroga L, Ray M, Sanabria E. Changes in thermal sensitivity of Rhinella arenarum tadpoles (Anura: Bufonidae) exposed to sublethal concentrations of different pesticide fractions (Lorsban® 75WG). J Therm Biol 2024; 120:103816. [PMID: 38428105 DOI: 10.1016/j.jtherbio.2024.103816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 03/03/2024]
Abstract
The intensive use of agrochemicals and the rapid increase of global temperatures have modified the thermal conditions of aquatic environments, thus increasing amphibians' vulnerability to global warming and positioning them at great risk. Commercial formulations of chlorpyrifos (COM) are the pesticides most widely used in agricultural activities, with a high toxic potential on amphibians. However, little is known about the separate effects of the active ingredient (CPF) and adjuvants (AD). We studied the thermal sensitivity at different concentrations and pesticide fractions in Rhinella arenarum tadpoles, on thermal tolerance limits (CTmax = Critical thermal maximum and CTmin = Critical thermal minimum), swimming speed (Ss), Optimum temperature (Top), and Thermal breadth 50 (B50). Our results demonstrate that the pesticide active ingredient, the adjuvants, and the commercial formulation of chlorpyrifos differentially impair the thermal sensitivity of R. arenarum tadpoles. The pesticide fractions affected the heat and the cold tolerance (CTmax and CTmin), depending on the concentrations they were exposed to. The locomotor performance (Ss, Top, and B50) of tadpoles also varied among fractions, treatments, and environmental temperatures. In the context of climate change, the outcomes presented are particularly relevant, as mean temperatures are increasing at unprecedented rates, which suggests that tadpoles inhabiting warming and polluted ponds are currently experiencing deleterious conditions. Considering that larval stages of amphibians are the most susceptible to changing environmental conditions and the alarming predictions about environmental temperatures in the future, it is likely that the synergism between high temperatures and pesticide exposure raise the threat of population deletions in the coming years.
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Affiliation(s)
- Luciana Gordillo
- Instituto de Ciencias Básicas, Facultad de Filosofía Humanidades y Artes, Universidad Nacional de San Juan. Av. Ignacio de la Roza 230 (Oeste), (5400), San Juan, Argentina; CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina.
| | - Lorena Quiroga
- Instituto de Ciencias Básicas, Facultad de Filosofía Humanidades y Artes, Universidad Nacional de San Juan. Av. Ignacio de la Roza 230 (Oeste), (5400), San Juan, Argentina; CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina.
| | - Maribel Ray
- Instituto de Ciencias Básicas, Facultad de Filosofía Humanidades y Artes, Universidad Nacional de San Juan. Av. Ignacio de la Roza 230 (Oeste), (5400), San Juan, Argentina.
| | - Eduardo Sanabria
- Instituto de Ciencias Básicas, Facultad de Filosofía Humanidades y Artes, Universidad Nacional de San Juan. Av. Ignacio de la Roza 230 (Oeste), (5400), San Juan, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo. Padre Jorge Contreras 1300. (M5502JMA), Mendoza, Argentina; CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina.
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Cecchetto F, Villalba A, Vazquez ND, Ramirez CL, Maggi MD, Miglioranza KSB. Occurrence of chlorpyrifos and organochlorine pesticides in a native bumblebee (Bombus pauloensis) living under different land uses in the southeastern Pampas, Argentina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167117. [PMID: 37717766 DOI: 10.1016/j.scitotenv.2023.167117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
Pollinators such as Apidae bees are vital for ecosystems and food security. Unfortunately, their populations have declined due to several factors including pesticide use. Among them, the organophosphate insecticide chlorpyrifos, poses a global threat, while legacy compounds like organochlorine pesticides (OCPs) easily bioaccumulate, increasing the concern. Bombus pauloensis, a widely distributed native bee in Argentina, is used for commercial pollination; however, information regarding their health status is scarce. This study assessed chlorpyrifos and OCP levels in B. pauloensis (workers and males) and related environmental matrices living from three different land uses schemes, by means of GC-ECD and GC-MS. The ornamental horticulture field (OP) showed the highest total pesticide concentrations in workers (13.1 ng/g), flowers and soils, whereas the organic agriculture field (OA) exhibited the lowest. Chlorpyrifos was the most abundant compound, accounting for at least 20 % of pesticide load across all matrices. The food production horticulture field (FH) had the highest chlorpyrifos concentration in workers, males and soils (5.0, 4.4 and 3.3 ng/g, respectively), suggesting a local greater usage, whereas OA showed the lowest. Regarding OCPs groups, Drins and DDTs were predominant in most matrices, with FH males registering the highest levels (4.0 and 2.5 ng/g, respectively), closely followed by OP. However, metabolites' contribution indicated historical use and atmospheric inputs in all sites. Multivariate analyses confirmed the significance of site and bumblebee sex to explain pesticide composition. Males from all sites exhibited higher chlorpyrifos levels than workers and this trend was similar for some OCP groups. Overall, OA differed from FH and OP, indicating a correlation between production modes and pesticide profiles. This study demonstrates the value of B. pauloensis as a pesticide biomonitor but also offers insights into its populations' health in the area. In this sense, this information could be useful towards the preservation of this crucial pollinator.
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Affiliation(s)
- Franco Cecchetto
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina.
| | - Agustina Villalba
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina; Centro de Investigación en Abejas Sociales (CIAS), Laboratorio de Artrópodos - Grupo Acarología y Entomología, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina; Instituto de Investigación en Sanidad, Producción y Ambiente (IIPROSAM), Funes 3350, Mar del Plata, Argentina
| | - Nicolas D Vazquez
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina; Laboratorio de Biología de Cnidarios, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina
| | - Cristina L Ramirez
- Departamento de Química, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina; Química Analítica y Modelado Molecular (QUIAMM), Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC), CONICET, Funes 3350, Mar del Plata, Argentina
| | - Matias D Maggi
- Centro de Investigación en Abejas Sociales (CIAS), Laboratorio de Artrópodos - Grupo Acarología y Entomología, FCEyN, UNMdP, Funes 3350, Mar del Plata, Argentina; Instituto de Investigación en Sanidad, Producción y Ambiente (IIPROSAM), Funes 3350, Mar del Plata, Argentina
| | - Karina S B Miglioranza
- Laboratorio de Ecotoxicología y Contaminación Ambiental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Funes 3350, Mar del Plata, Argentina
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Ohoro CR, Wepener V. Review of scientific literature on available methods of assessing organochlorine pesticides in the environment. Heliyon 2023; 9:e22142. [PMID: 38045185 PMCID: PMC10692828 DOI: 10.1016/j.heliyon.2023.e22142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/21/2023] [Accepted: 11/05/2023] [Indexed: 12/05/2023] Open
Abstract
Organochlorine pesticides (OCPs) are persistent organic pollutants (POPs) widely used in agriculture and industry, causing serious health and ecological consequences upon exposure. This review offers a thorough overview of OCPs analysis emphasizing the necessity of ongoing work to enhance the identification and monitoring of these POPs in environmental and human samples. The benefits and drawbacks of the various OCPs analysis techniques including gas chromatography-mass spectrometry (GC-MS), gas chromatography-electron capture detector (GC-ECD), and liquid chromatography-mass spectrometry (LC-MS) are discussed. Challenges associated with validation and optimization criteria, including accuracy, precision, limit of detection (LOD), and limit of quantitation (LOQ), must be met for a method to be regarded as accurate and reliable. Suitable quality control measures, such as method blanks and procedural blanks, are emphasized. The LOD and LOQ are critical quality control measure for efficient quantification of these compounds, and researchers have explored various techniques for their calculation. Matrix interference, solubility, volatility, and partition coefficient influence OCPs occurrences and are discussed in this review. Validation experiments, as stated by European Commission in document SANTE/11813/2017, showed that the acceptance criteria for method validation of OCP analytes include ≤20 % for high precision, and 70-120 % for recovery. This may ultimately be vital for determining the human health risk effects of exposure to OCP and for formulating sensible environmental and public health regulations.
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Affiliation(s)
- Chinemerem Ruth Ohoro
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa
| | - Victor Wepener
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa
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Wu M, Yi J, Yin C, Sun Q, Gao L, Niu N, Chen L. An upconversion nanosensor with phenolic-like functionality for accurate identification of chlorpyrifos in grapes. Food Chem 2023; 416:135859. [PMID: 36898337 DOI: 10.1016/j.foodchem.2023.135859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/07/2023]
Abstract
The inappropriate use of the organophosphorus pesticide chlorpyrifos (CPF) in agricultural production could be harmful to the environment and non-target organisms. Here, we prepared a nano-fluorescent probe with phenolic function based on covalently coupled rhodamine derivatives (RDP) of upconverted nano-particles (UCNPs) for trace detection of chlorpyrifos. Due to the fluorescence resonance energy transfer (FRET) effect in the system, the fluorescence of UCNPs is quenched by RDP. The phenolic-functional RDP is converted to the spironolactone form when it captures chlorpyrifos. This structural shift prevents the FRET effect in the system and allows the fluorescence of UCNPs to be restored. In addition, the 980 nm excitement conditions of UCNPs will also avoid interference from non-target fluorescent backgrounds. This work has obvious advantages in terms of selectivity and sensitivity, which can be widely applied to the rapid analysis of chlorpyrifos residues in food samples.
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Affiliation(s)
- Meng Wu
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040, China
| | - Jiaqi Yi
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040, China
| | - Chenhui Yin
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040, China
| | - Qijun Sun
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040, China
| | - Lei Gao
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040, China; Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150010, China
| | - Na Niu
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040, China.
| | - Ligang Chen
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040, China.
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