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Capparelli MV, Dzul-Caamal R, Rodríguez-Cab EM, Borges-Ramírez MM, Osten JRV, Beltran K, Pichardo-Casales B, Ramírez-Olivares AI, Vargas-Abúndez JA, Thurman CL, Moulatlet GM, Rosas C. Synergistic effects of microplastic and lead trigger physiological and biochemical impairment in a mangrove crab. Comp Biochem Physiol C Toxicol Pharmacol 2024; 276:109809. [PMID: 38056684 DOI: 10.1016/j.cbpc.2023.109809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/16/2023] [Accepted: 12/03/2023] [Indexed: 12/08/2023]
Abstract
Microplastics (MP) are vectors for other environmental contaminants, such as metals, being a considerable problem, especially in the aquatic ecosystem. To investigate the combined effects of MP (high density polyethylene) with lead (Pb), we exposed the mangrove fiddler crab Minuca vocator to Pb (50 mg L-1), and MP (25 mg L-1) alone and in mixture, for 5 days. We aimed to determine Pb and MP bioaccumulation, as well as physiological (oxygen consumption and hemolymph osmolality) and biochemical (superoxide dismutase, catalase, glutathione peroxidase, and lipid peroxidation) traits effects. Co-exposure of MP and Pb significantly increased the bioaccumulation of Pb, but reduced MP tissue accumulation. Regarding the physiological traits, increasing osmolality and oxygen consumption rates compared to the control were observed, particularly in the combined Pb and MP exposure. As to biochemical traits, the combination of Pb and MP induced the most significant responses in the enzymatic profile antioxidant enzyme activity. The catalase (CAT), glutathione peroxidase (GPx), and dismutase superoxide (SOD) decreased compared to individual exposure effects; the combination of MP and Pb had a synergistic effect on promoting lipid peroxidation (LPO). The co-exposure of MP and Pb acted synergistically when compared to the effects of the isolated compounds. Due to the increasing MP contamination in mangroves, more severe physiological and biochemical effects can be expected on mangrove crabs exposed to metal contamination.
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Affiliation(s)
- Mariana V Capparelli
- Estación El Carmen, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Carretera Carmen-Puerto Real km 9.5, 24157 Ciudad del Carmen, Mexico.
| | - Ricardo Dzul-Caamal
- Instituto de Ecología, Pesquería y Oceanografía del Golfo de México (EPOMEX), Campus VI, Av. Héroe de Nacozari 480, Universidad Autónoma de Campeche, 24070 Campeche, Mexico
| | - Erick M Rodríguez-Cab
- Instituto de Ecología, Pesquería y Oceanografía del Golfo de México (EPOMEX), Campus VI, Av. Héroe de Nacozari 480, Universidad Autónoma de Campeche, 24070 Campeche, Mexico
| | - Merle M Borges-Ramírez
- Instituto de Ecología, Pesquería y Oceanografía del Golfo de México (EPOMEX), Campus VI, Av. Héroe de Nacozari 480, Universidad Autónoma de Campeche, 24070 Campeche, Mexico
| | - Jaime Rendón-von Osten
- Instituto de Ecología, Pesquería y Oceanografía del Golfo de México (EPOMEX), Campus VI, Av. Héroe de Nacozari 480, Universidad Autónoma de Campeche, 24070 Campeche, Mexico
| | - Karen Beltran
- Estación El Carmen, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Carretera Carmen-Puerto Real km 9.5, 24157 Ciudad del Carmen, Mexico
| | - Brian Pichardo-Casales
- Escuela Nacional de Estudios Superiores Unidad Morelia (ENES Morelia), Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, C.P. 58190 Morelia, Michoacán, Mexico
| | | | | | - Carl L Thurman
- Department of Biology, University of Northern Iowa, 1227 W. 27 th St., Cedar Falls, IO, USA
| | - Gabriel M Moulatlet
- Arizona Institute for Resilience, University of Arizona, Tucson, AZ, USA; Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona, USA
| | - Carlos Rosas
- Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, Mexico
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Biomimetic Superhydrophobic Films with an Extremely Low Roll-Off Angle Modified by F 16CuPc via Two-Step Fabrication. NANOMATERIALS 2022; 12:nano12060953. [PMID: 35335766 PMCID: PMC8953802 DOI: 10.3390/nano12060953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/11/2022] [Accepted: 03/11/2022] [Indexed: 02/01/2023]
Abstract
Superhydrophobicity is the phenomenon of which the water contact angle (WCA) of droplets on a solid surface is greater than 150°. In the present paper, we prepare a superhydrophobic film with a structure similar to the surface of a lotus leaf, which is composed of polydimethylsiloxane (PDMS), zinc oxide (ZnO), a molecular sieve (MS) and 1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecafluorophthalocyanine copper(II) (F16CuPc). The F16CuPc was used as the modifier to reduce the surface energy of the biomimetic micro-nanostructure. With the introduction of F16CuPc, the superhydrophobic properties of the surface were enhanced so that the WCA and water roll-off angle could reach 167.1° and 0.5°, respectively. Scanning electron microscopy, X-ray energy spectrometry, and X-ray photoelectron spectroscopy analyses verified that the enhanced superhydrophobic properties of the film were mainly attributed to the modification of F16CuPc. Finally, thermal, mechanical, and chemical stability studies, as well as the influences of UV and underwater immersion on the superhydrophobic film were investigated. This developed two-step fabrication method may be a potential direction for superhydrophobic surface fabrication due to its simple process, excellent superhydrophobic property, and favorable stability.
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Xuemei Z, Feng F, Xiaoming G, Xiufang H, Fengxing N. Facile fabrication of superhydrophobic fly ash-coated mesh for oil-water separation. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1838922] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Zhang Xuemei
- College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, China
| | - Fu Feng
- College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, China
| | - Gao Xiaoming
- College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, China
| | - Hou Xiufang
- College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, China
| | - Niu Fengxing
- College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, China
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