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8. Polymeric ruthenium precursor as a photoactivated antimicrobial agent

Author

Ghosh, Srabanti, Amariei, Georgiana, Mosquera, Marta E. G., and Rosal, Roberto

Subjects
Condensed Matter - Materials Science
Abstract

In this work, the antibacterial activity of the polymeric precursor dicarbonyldichlororuthenium has been studied against Escherichia coli and Staphylococcus aureus. This Ru carbonyl precursor shows minimum inhibitory concentration at nanogram per millilitre, which renders it a novel antimicrobial polymer without any organic ligands. Besides, dicarbonyldichlororuthenium antimicrobial activity is markedly boosted under photoirradiation, which can be ascribed to the enhanced generation of reactive oxygen species under UV irradiation. This compound has been able to inhibit bacterial growth via the disruption of bacterial membranes and triggering upregulation of stress responses as shown in microscopic measurements. The activity of polymeric ruthenium as an antibacterial material is significant even at very low concentrations while remaining biocompatible to the mammalian cells at much higher concentrations. This study proves that this simple Ru carbonyl precursor can be used as an antimicrobial compound with high activity and a low toxicity profile in the context of need for new antimicrobial agents to fight bacterial infections.

Published
2021
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10. A nationwide monitoring of atmospheric microplastic deposition

Author

Edo, Carlos, Fernández-Piñas, Francisca, Leganes, Francisco, Gómez, May, Martínez, Ico, Herrera, Alicia, Hernández-Sánchez, Cintia, González-Sálamo, Javier, Borges, Javier Hernández, López-Castellanos, Joaquín, Bayo, Javier, Romera-Castillo, Cristina, Elustondo, David, Santamaría, Carolina, Alonso, Rocío, García-Gómez, Héctor, Gonzalez-Cascon, Rosario, Martínez-Hernández, Virtudes, Landaburu-Aguirre, Junkal, Incera, Mónica, Gago, Jesús, Noya, Beatriz, Beiras, Ricardo, Muniategui-Lorenzo, Soledad, Rosal, Roberto, and González-Pleiter, Miguel

Published
2023
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12. Occurrence and size distribution study of microplastics in household water from different cities in continental Spain and the Canary Islands

Author

Gálvez-Blanca, Virginia, Edo, Carlos, González-Pleiter, Miguel, Albentosa, Marina, Bayo, Javier, Beiras, Ricardo, Fernández-Piñas, Francisca, Gago, Jesús, Gómez, May, Gonzalez-Cascon, Rosario, Hernández-Borges, Javier, Landaburu-Aguirre, Junkal, Martínez, Ico, Muniategui-Lorenzo, Soledad, Romera-Castillo, Cristina, and Rosal, Roberto

Published
2023
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21. Micro and Nano-Plastics in the Environment: Research Priorities for the Near Future

Author

Vighi, Marco, Bayo, Javier, Fernández-Piñas, Francisca, Gago, Jesús, Gómez, May, Hernández-Borges, Javier, Herrera, Alicia, Landaburu, Junkal, Muniategui-Lorenzo, Soledad, Muñoz, Antonio-Román, Rico, Andreu, Romera-Castillo, Cristina, Viñas, Lucía, Rosal, Roberto, de Voogt, Pim, Series Editor, Cavieres, María Fernanda, Associate Editor, Knaak, James B., Associate Editor, van Wezel, Annemarie P., Associate Editor, Tjeerdema, Ronald S., Associate Editor, and Vighi, Marco, Associate Editor

Published
2021
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29. A global multinational survey of cefotaxime-resistant coliforms in urban wastewater treatment plants

Author

Marano, Roberto B.M., Fernandes, Telma, Manaia, Célia M., Nunes, Olga, Morrison, Donald, Berendonk, Thomas U., Kreuzinger, Norbert, Tenson, Tanel, Corno, Gianluca, Fatta-Kassinos, Despo, Merlin, Christophe, Topp, Edward, Jurkevitch, Edouard, Henn, Leonie, Scott, Andrew, Heß, Stefanie, Slipko, Katarzyna, Laht, Mailis, Kisand, Veljo, Di Cesare, Andrea, Karaolia, Popi, Michael, Stella G., Petre, Alice L., Rosal, Roberto, Pruden, Amy, Riquelme, Virginia, Agüera, Ana, Esteban, Belen, Luczkiewicz, Aneta, Kalinowska, Agnieszka, Leonard, Anne, Gaze, William H., Adegoke, Anthony A., Stenstrom, Thor A., Pollice, Alfieri, Salerno, Carlo, Schwermer, Carsten U., Krzeminski, Pawel, Guilloteau, Hélène, Donner, Erica, Drigo, Barbara, Libralato, Giovanni, Guida, Marco, Bürgmann, Helmut, Beck, Karin, Garelick, Hemda, Tacão, Marta, Henriques, Isabel, Martínez-Alcalá, Isabel, Guillén-Navarro, Jose M., Popowska, Magdalena, Piotrowska, Marta, Quintela-Baluja, Marcos, Bunce, Joshua T., Polo-López, Maria I., Nahim–Granados, Samira, Pons, Marie-Noëlle, Milakovic, Milena, Udikovic-Kolic, Nikolina, Ory, Jérôme, Ousmane, Traore, Caballero, Pilar, Oliver, Antoni, Rodriguez-Mozaz, Sara, Balcazar, Jose L., Jäger, Thomas, Schwartz, Thomas, Yang, Ying, Zou, Shichun, Lee, Yunho, Yoon, Younggun, Herzog, Bastian, Mayrhofer, Heidrun, Prakash, Om, Nimonkar, Yogesh, Heath, Ester, Baraniak, Anna, Abreu-Silva, Joana, Choudhury, Manika, Munoz, Leonardo P., Krizanovic, Stela, Brunetti, Gianluca, Maile-Moskowitz, Ayella, Brown, Connor, and Cytryn, Eddie

Published
2020
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31. Tracking nanoplastics in freshwater microcosms and their impacts to aquatic organisms

Author

Ministerio de Ciencia e Innovación (España), European Commission, Ministerio de Universidades (España), Swiss National Science Foundation, Pulido-Reyes, Gerardo [0000-0003-0853-9951], González-Pleiter, Miguel [0000-0002-7674-4167], Leganés, Francisco [0000-0002-1019-2291], Mitrano, Denise M. [0000-0001-8030-6066], Rosal, Roberto [0000-0003-0816-8775], Fernández-Piñas, Francisca [0000-0002-7444-7601], Tamayo-Belda, Miguel, Pérez-Olivares, Ana Villanueva, Pulido-Reyes, Gerardo, Martín-Betancor, Keila, González-Pleiter, Miguel, Leganés, Francisco, Mitrano, Denise M., Rosal, Roberto, Fernández-Piñas, Francisca, Ministerio de Ciencia e Innovación (España), European Commission, Ministerio de Universidades (España), Swiss National Science Foundation, Pulido-Reyes, Gerardo [0000-0003-0853-9951], González-Pleiter, Miguel [0000-0002-7674-4167], Leganés, Francisco [0000-0002-1019-2291], Mitrano, Denise M. [0000-0001-8030-6066], Rosal, Roberto [0000-0003-0816-8775], Fernández-Piñas, Francisca [0000-0002-7444-7601], Tamayo-Belda, Miguel, Pérez-Olivares, Ana Villanueva, Pulido-Reyes, Gerardo, Martín-Betancor, Keila, González-Pleiter, Miguel, Leganés, Francisco, Mitrano, Denise M., Rosal, Roberto, and Fernández-Piñas, Francisca

Abstract

In this work, we used palladium-doped polystyrene NPLs (PS-NPLs with a primary size of 286 ± 4 nm) with an irregular surface morphology which allowed for particle tracking and evaluation of their toxicity on two primary producers (cyanobacterium, Anabaena sp. PCC7120 and green algae, Chlamydomonas reinhardtii) and one primary consumer (crustacean, Daphnia magna). the concentration range for Anabaena and C. reinhardtii was from 0.01 to 1000 mg/L and for D. magna, the range was from 7.5 to 120 mg/L.EC50 s ranged from 49 mg NPLs/L for D. magna (48hEC50 s) to 248 mg NPLs/L (72hEC50 s for C. reinhardtii). PS-NPLs induced dose-dependent reactive oxygen species overproduction, membrane damage and metabolic alterations. To shed light on the environmental fate of PS-NPLs, the short-term distribution of PS-NPLs under static (using lake water and sediments) and stirring (using river water and sediments) conditions was studied at laboratory scale. The results showed that most NPLs remained in the water column over the course of 48 h. The maximum percentage of settled particles (∼ 30 %) was found under stirring conditions in comparison with the ∼ 10 % observed under static ones. Natural organic matter increased the stability of the NPLs under colloidal state while organisms favored their settlement. This study expands the current knowledge of the biological effects and fate of NPLs in freshwater environments.

Published
2023

32. EnviroPlaNet Project: A systematic monitoring of atmospheric deposition of microplastics in Spain

Author

Edo, Carlos [0000-0003-0340-7327], Fernández-Piñas, Francisca [0000-0002-7444-7601], Leganés, Francisco [0000-0002-1019-2291], Gómez, May [0000-0002-7396-6493], Hernández-Sánchez, Cintia [0000-0003-0770-2438], González-Sálamo, Javier [0000-0002-1522-8302], Hernández-Borges, Javier [0000-0001-8895-5554], Bayo, Javier [0000-0002-6975-4316], Romera-Castillo, Cristina [0000-0002-4888-1340], Elustondo, David [0000-0002-0552-0852], García-Gómez, Héctor [0000-0002-7951-9862], González-Cascón, Rosario [0000-0003-3468-0967], Martínez-Hernández, Virtudes [0000-0002-0542-4377], Landaburu-Aguirre, J. [0000-0001-8546-4127], Incera, Mónica [0000-0002-2817-6767], Gago, Jesús [0000-0003-0188-9844], Noya, Beatriz [0000-0002-9731-8896], Beiras, Ricardo [0000-0002-1010-2647], Muniategui-Lorenzo, Soledad [0000-0001-5946-3366], Rosal, Roberto [0000-0003-0816-8775], González-Pleiter, Miguel [0000-0002-7674-4167], Edo, Carlos, Fernández-Piñas, Francisca, Leganés, Francisco, Gómez, May, Martínez, Ico, Hernández-Sánchez, Cintia, González-Sálamo, Javier, Hernández-Borges, Javier, López-Castellanos, Joaquín, Bayo, Javier, Romera-Castillo, Cristina, Elustondo, David, Alonso, Rocío, García-Gómez, Héctor, González-Cascón, Rosario, Martínez-Hernández, Virtudes, Landaburu-Aguirre, J., Incera, Mónica, Gago, Jesús, Noya, Beatriz, Beiras, Ricardo, Muniategui-Lorenzo, Soledad, Rosal, Roberto, González-Pleiter, Miguel, Edo, Carlos [0000-0003-0340-7327], Fernández-Piñas, Francisca [0000-0002-7444-7601], Leganés, Francisco [0000-0002-1019-2291], Gómez, May [0000-0002-7396-6493], Hernández-Sánchez, Cintia [0000-0003-0770-2438], González-Sálamo, Javier [0000-0002-1522-8302], Hernández-Borges, Javier [0000-0001-8895-5554], Bayo, Javier [0000-0002-6975-4316], Romera-Castillo, Cristina [0000-0002-4888-1340], Elustondo, David [0000-0002-0552-0852], García-Gómez, Héctor [0000-0002-7951-9862], González-Cascón, Rosario [0000-0003-3468-0967], Martínez-Hernández, Virtudes [0000-0002-0542-4377], Landaburu-Aguirre, J. [0000-0001-8546-4127], Incera, Mónica [0000-0002-2817-6767], Gago, Jesús [0000-0003-0188-9844], Noya, Beatriz [0000-0002-9731-8896], Beiras, Ricardo [0000-0002-1010-2647], Muniategui-Lorenzo, Soledad [0000-0001-5946-3366], Rosal, Roberto [0000-0003-0816-8775], González-Pleiter, Miguel [0000-0002-7674-4167], Edo, Carlos, Fernández-Piñas, Francisca, Leganés, Francisco, Gómez, May, Martínez, Ico, Hernández-Sánchez, Cintia, González-Sálamo, Javier, Hernández-Borges, Javier, López-Castellanos, Joaquín, Bayo, Javier, Romera-Castillo, Cristina, Elustondo, David, Alonso, Rocío, García-Gómez, Héctor, González-Cascón, Rosario, Martínez-Hernández, Virtudes, Landaburu-Aguirre, J., Incera, Mónica, Gago, Jesús, Noya, Beatriz, Beiras, Ricardo, Muniategui-Lorenzo, Soledad, Rosal, Roberto, and González-Pleiter, Miguel

Abstract

Plastic pollution is a global concern. The world's production continues to increase yearly, reaching more than 367 million tons in 2020 [1]. Part of these plastics are directly manufactured as microplastics (MPs) while another fraction becomes MPs as a result of the degradation processes of larger plastics into microsized particles. In this context, MPs have already been found in the hydrosphere, biosphere, cryosphere, lithosphere and, recently, atmosphere. However, the presence of MPs in the atmosphere has been poorly studied. The objective of this work was the systematic monitoring of the deposition of MPs in areas of Spain with different characteristics (population, economic activities, and climate) using a common method for sampling, quantification, and identification during the four seasons of a one-year sampling campaign with the purpose of clarifying the role of the atmosphere in the fate and dispersion of MPs. This was possible thanks to the collaboration of several Spanish research groups in the project Thematic Network of Micro- and Nanoplastics in the Environment

Published
2023

39. Tracking nanoplastics in freshwater microcosms and their impacts to aquatic organisms

Author

Fernández Piñas, Francisca, Tamayo Belda, Miguel, Villanueva Pérez-Olivares, Ana, Pulido-Reyes, Gerardo, Martin-Betancor, Keila, González Pleiter, Miguel, Leganés Nieto, Francisco, Mitrano, Denise M., Rosal, Roberto, UAM. Departamento de Biología, Ministerio de Ciencia e Innovación (España), European Commission, Ministerio de Universidades (España), Swiss National Science Foundation, Pulido-Reyes, Gerardo, González-Pleiter, Miguel, Leganés, Francisco, Mitrano, Denise M., Rosal, Roberto, and Fernández-Piñas, Francisca

Subjects
Environmental Engineering, Toxicity, Health, Toxicology and Mutagenesis, Cyanobacterium Anabaena, Environmental fate, Fresh Water, Biología y Biomedicina / Biología, Pollution, Reinhardtii, Reshwater Microcosm, Aquatic organisms, Freshwater microcosms, Irregular Surface, Primary Producers, Article Tracking, Environmental Chemistry, Nanoplastics, Waste Management and Disposal
Abstract

12 Pág., In this work, we used palladium-doped polystyrene NPLs (PS-NPLs with a primary size of 286 ± 4 nm) with an irregular surface morphology which allowed for particle tracking and evaluation of their toxicity on two primary producers (cyanobacterium, Anabaena sp. PCC7120 and green algae, Chlamydomonas reinhardtii) and one primary consumer (crustacean, Daphnia magna). the concentration range for Anabaena and C. reinhardtii was from 0.01 to 1000 mg/L and for D. magna, the range was from 7.5 to 120 mg/L.EC50 s ranged from 49 mg NPLs/L for D. magna (48hEC50 s) to 248 mg NPLs/L (72hEC50 s for C. reinhardtii). PS-NPLs induced dose-dependent reactive oxygen species overproduction, membrane damage and metabolic alterations. To shed light on the environmental fate of PS-NPLs, the short-term distribution of PS-NPLs under static (using lake water and sediments) and stirring (using river water and sediments) conditions was studied at laboratory scale. The results showed that most NPLs remained in the water column over the course of 48 h. The maximum percentage of settled particles (∼ 30 %) was found under stirring conditions in comparison with the ∼ 10 % observed under static ones. Natural organic matter increased the stability of the NPLs under colloidal state while organisms favored their settlement. This study expands the current knowledge of the biological effects and fate of NPLs in freshwater environments., The authors acknowledge the financial support provided by the Spanish Government (Ministerio de Ciencia e Innovación, MICIN): PID2020-113769RB-C21/22, PLEC2021-007693 (Funded by MCIN/AEI/10.13039/501100011033 and by the European Union “NextGenerationEU”/PRTR”), TED2021-131609B-C32/33 grants and the Thematic Network of Micro- and Nanoplastics in the Environment (RED2018-102345-T, EnviroPlaNet Network). MTB is the recipient of a FPU (FPU17/01789) pre-doctoral contract by the Spanish Ministerio de Universidades. D.M.M. was funded through the Swiss National Science Foundation (SNF), Grant nos. PZ00P2_168105 and PCEFP2_186856. The authors gratefully acknowledge the support of IESMAT during physicochemical characterization of the nanoplastics.

Published
2023

44. Effects of petroleum-based and biopolymer-based nanoplastics on aquatic organisms: A case study with mechanically degraded pristine polymers

Author

Tamayo Belda, Miguel, Venâncio, Cátia, Fernández Piñas, Francisca, Rosal, Roberto, Lopes, Isabel, Oliveira, Miguel, and UAM. Departamento de Biología

Subjects
Biomolecules, Aquatic Organisms, Environmental Engineering, Biopolymers, Environmental Chemistry, Nanoparticles, Polyethylenes, Biología y Biomedicina / Biología, Pollution, Waste Management and Disposal
Abstract

Mismanaged plastic litter submitted to environmental conditions may breakdown into smaller fragments, eventually reaching nano-scale particles (nanoplastics, NPLs). In this study, pristine beads of four different types of polymers, three oil-based (polypropylene, PP; polystyrene, PS; and low-density polyethylene, LDPE) and one bio-based (polylactic acid, PLA) were mechanically broken down to obtain more environmentally realistic NPLs and its toxicity to two freshwater secondary consumers was assessed. Thus, effects on the cnidarian Hydra viridissima (mortality, morphology, regeneration ability, and feeding behavior) and the fish Danio rerio (mortality, morphological alterations, and swimming behavior) were tested at NPLs concentrations in the 0.001 to 100 mg/L range. Mortality and several morphological alterations were observed on hydras exposed to 10 and 100 mg/L PP and 100 mg/L LDPE, whilst regeneration capacity was overall accelerated. The locomotory activity of D. rerio larvae was affected by NPLs (decreased swimming time, distance or turning frequency) at environmentally realistic concentrations (as low as 0.001 mg/L). Overall, petroleum- and bio-based NPLs elicited pernicious effects on tested model organisms, especially PP, LDPE and PLA. Data allowed the estimation of NPLs effective concentrations and showed that biopolymers may also induce relevant toxic effects, The authors acknowledge the financial support provided by the Spanish Government (Ministerio de Ciencia e Innovación): PID2020-113769RBC21/22, PLEC2021-007693 and the Thematic Network of Micro- and Nanoplastics in the Environment (RED2018-102345-T, EnviroPlaNet Network) and by the Portuguese Government: Project NanoPlanet (2022.02340.PTDC) and financial support to CESAM (UIDP/ 50017/ 2020+UIDB/50017/2020+LA/P/0094/2020), through FCT/MCTES. MTB is the recipient of a FPU (FPU17/01789) pre-doctoral contract by the Spanish Ministerio de Ciencia, Innovación y Universidades

Published
2023

46. Antiadherent AgBDC Metal–Organic Framework Coating for Escherichia coli Biofilm Inhibition

Author

Arenas Vivo, Ana, Celis Arias, Vanessa, Amariei, Georgiana, Rosal, Roberto, Izquierdo Barba, Isabel, Hidalgo, Tania, Vallet Regí, María Dulce Nombre, Beltrán, Hiram I., Loera-Serna, Sandra, Horcajada, Patricia, Arenas Vivo, Ana, Celis Arias, Vanessa, Amariei, Georgiana, Rosal, Roberto, Izquierdo Barba, Isabel, Hidalgo, Tania, Vallet Regí, María Dulce Nombre, Beltrán, Hiram I., Loera-Serna, Sandra, and Horcajada, Patricia

Abstract

Surface microbial colonization and its potential biofilm formation are currently a major unsolved problem, causing almost 75% of human infectious diseases. Pathogenic biofilms are capable of surviving high antibiotic doses, resulting in inefficient treatments and, subsequently, raised infection prevalence rates. Antibacterial coatings have become a promising strategy against the biofilm formation in biomedical devices due to their biocidal activity without compromising the bulk material. Here, we propose for the first time a silver-based metal–organic framework (MOF; here denoted AgBDC) showing original antifouling properties able to suppress not only the initial bacterial adhesion, but also the potential surface contamination. Firstly, the AgBDC stability (colloidal, structural and chemical) was confirmed under bacteria culture conditions by using agar diffusion and colony counting assays, evidencing its biocide effect against the challenging E. coli, one of the main representative indicators of Gram-negative resistance bacteria. Then, this material was shaped as homogeneous spin-coated AgBDC thin film, investigating its antifouling and biocide features using a combination of complementary procedures such as colony counting, optical density or confocal scanning microscopy, which allowed to visualize for the first time the biofilm impact generated by MOFs via a specific fluorochrome, calcofluor., Comunidad de Madrid, European Regional Development Fund, European Union’s Horizon 2020, European Research Council (Advanced Grant VERDI; ERC-2015-AdG Proposal No 694160), Depto. de Química en Ciencias Farmacéuticas, Fac. de Farmacia, TRUE, pub

Published
2023

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