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Vargas Hernández R, Alvarez Lemus MA, De la Rosa García S, López González R, Quintana P, García Zaleta D, Velázquez Vázquez V, Gómez Cornelio S. Antifungal Activity of ZnO Nanoparticles Synthesized from Eichhornia crassipes Extract for Construction Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1007. [PMID: 38921883 PMCID: PMC11206371 DOI: 10.3390/nano14121007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/07/2024] [Accepted: 06/07/2024] [Indexed: 06/27/2024]
Abstract
Fungal growth on construction materials in tropical climates can degrade aesthetics and manifestations on modern and historical sick buildings, affecting the health of their inhabitants. This study synthesized ZnO nanoparticles with enhanced antifungal properties using a precipitation method. Different concentrations (25%, 50%, and 100%) of Eichhornia crassipes aqueous extract were used with Zn(NO3)2·6H2O as the precursor to evaluate their spectroscopic, morphological, textural, and antifungal properties. X-ray diffraction confirmed the hexagonal wurtzite phase of ZnO with crystallite sizes up to 20 nm. Fourier-transform infrared spectroscopy identified absorption bands at 426, 503, and 567 cm-1 for ZnO-100, ZnO-50, and ZnO-25, respectively. Nitrogen physisorption indicated a type II isotherm with macropores and a fractal dimension coefficient near 2 across all concentrations. Polydispersity index analysis showed that ZnO-50 had a higher PDI, indicating a broader size distribution, while ZnO-25 and ZnO-100 exhibited lower PDI values, reflecting uniform and monodisperse particle sizes. FESEM observations revealed semi-spherical ZnO morphologies prone to agglomeration, particularly in ZnO-25. Antifungal tests highlighted ZnO-25 as the most effective, especially against Phoma sp. with an MFC/MIC ratio of 78 µg/mL. Poisoned plate assays demonstrated over 50% inhibition at 312 µg/mL for all tested fungi, outperforming commercial antifungals. The results indicate that ZnO NPs synthesized using E. crassipes extract effectively inhibit fungal growth on construction materials. This procedure offers a practical approach to improving the durability of building aesthetics and may contribute to reducing the health risks associated with exposure to fungal compounds.
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Affiliation(s)
- Rocío Vargas Hernández
- Multidisciplinary Academic Division of Jalpa de Méndez, Juarez Autonomous University of Tabasco, Jalpa de Méndez 86205, Tabasco, Mexico (D.G.Z.)
- Nanotechnology Laboratory, Academic Division of Engineering and Architecture, Juarez Autonomous University of Tabasco, Cunduacán 86690, Tabasco, Mexico; (M.A.A.L.)
| | - Mayra A. Alvarez Lemus
- Nanotechnology Laboratory, Academic Division of Engineering and Architecture, Juarez Autonomous University of Tabasco, Cunduacán 86690, Tabasco, Mexico; (M.A.A.L.)
| | - Susana De la Rosa García
- Laboratory of Applied Microbiology, Academic Division of Biological Sciences, Juarez Autonomous University of Tabasco, Villahermosa 86000, Tabasco, Mexico
| | - Rosendo López González
- Nanotechnology Laboratory, Academic Division of Engineering and Architecture, Juarez Autonomous University of Tabasco, Cunduacán 86690, Tabasco, Mexico; (M.A.A.L.)
| | - Patricia Quintana
- National Laboratory of Nano and Biomaterials, Department of Applied Physics, CINVESTAV-IPN, Cordemex, P.O. Box 73, Mérida 97310, Yucatán, Mexico
| | - David García Zaleta
- Multidisciplinary Academic Division of Jalpa de Méndez, Juarez Autonomous University of Tabasco, Jalpa de Méndez 86205, Tabasco, Mexico (D.G.Z.)
| | - Viridiana Velázquez Vázquez
- Nanotechnology Laboratory, Academic Division of Engineering and Architecture, Juarez Autonomous University of Tabasco, Cunduacán 86690, Tabasco, Mexico; (M.A.A.L.)
| | - Sergio Gómez Cornelio
- Nanotechnology Laboratory, Academic Division of Engineering and Architecture, Juarez Autonomous University of Tabasco, Cunduacán 86690, Tabasco, Mexico; (M.A.A.L.)
- Biotechnology Laboratory, Polytechnic University of the Center, Centro 86290, Tabasco, Mexico
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Orfei B, Moretti C, Scian A, Paglialunga M, Loreti S, Tatulli G, Scotti L, Aceto A, Buonaurio R. Combat phytopathogenic bacteria employing Argirium-SUNCs: limits and perspectives. Appl Microbiol Biotechnol 2024; 108:357. [PMID: 38822872 PMCID: PMC11144149 DOI: 10.1007/s00253-024-13189-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 06/03/2024]
Abstract
Bacterial plant diseases are difficult to control as the durability of deployed control measures is thwarted by continuous and rapid changing of bacterial populations. Although application of copper compounds to plants is the most widespread and inexpensive control measure, it is often partially efficacious for the frequent appearance of copper-resistant bacterial strains and it is raising concerns for the harmful effects of copper on environment and human health. Consequently, European Community included copper compounds in the list of substances candidates for substitution. Nanotechnologies and the application of nanoparticles seem to respond to the need to find new very effective and durable measures. We believe that Argirium-SUNCs®, silver ultra nanoclusters with an average size of 1.79 nm and characterized by rare oxidative states (Ag2+/3+), represent a valid candidate as a nano-bactericide in the control of plant bacterial diseases. Respect to the many silver nanoparticles described in the literature, Argirium-SUNCs have many strengths due to the reproducibility of the synthesis method, the purity and the stability of the preparation, the very strong (less than 1 ppm) antimicrobial, and anti-biofilm activities. In this mini-review, we provide information on this nanomaterial and on the possible application in agriculture. KEY POINTS: • Argirium-SUNCs have strong antimicrobial activities against phytopathogenic bacteria. • Argirium-SUNCs are a possible plant protection product. • Argirium-SUNCs protect tomato plants against bacterial speck disease.
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Affiliation(s)
- Benedetta Orfei
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Chiaraluce Moretti
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy.
| | - Anna Scian
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Michela Paglialunga
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Stefania Loreti
- Research Centre for Plant Protection and Certification, Council for Agricultural Research and Economics (CREA), Rome, Italy
| | - Giuseppe Tatulli
- Research Centre for Plant Protection and Certification, Council for Agricultural Research and Economics (CREA), Rome, Italy
| | - Luca Scotti
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy.
| | - Antonio Aceto
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Roberto Buonaurio
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
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Thiruvengadam M, Chi HY, Kim SH. Impact of nanopollution on plant growth, photosynthesis, toxicity, and metabolism in the agricultural sector: An updated review. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 207:108370. [PMID: 38271861 DOI: 10.1016/j.plaphy.2024.108370] [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: 10/09/2023] [Revised: 12/26/2023] [Accepted: 01/11/2024] [Indexed: 01/27/2024]
Abstract
Nanotechnology provides distinct benefits to numerous industrial and commercial fields, and has developed into a discipline of intense interest to researchers. Nanoparticles (NPs) have risen to prominence in modern agriculture due to their use in agrochemicals, nanofertilizers, and nanoremediation. However, their potential negative impacts on soil and water ecosystems, as well as plant growth and physiology, have caused concern for researchers and policymakers. Concerns have been expressed regarding the ecological consequences and toxicity effects associated with nanoparticles as a result of their increased production and usage. Moreover, the accumulation of nanoparticles in the environment poses a risk, not only because of the possibility of plant damage but also because nanoparticles may infiltrate the food chain. In this review, we have documented the beneficial and detrimental effects of NPs on seed germination, shoot and root growth, plant biomass, and nutrient assimilation. Nanoparticles exert toxic effects by inducing ROS generation and stimulating cytotoxic and genotoxic effects, thereby leading to cell death in several plant species. We have provided possible mechanisms by which nanoparticles induce toxicity in plants. In addition to the toxic effects of NPs, we highlighted the importance of nanomaterials in the agricultural sector. Thus, understanding the structure, size, and concentration of nanoparticles that will improve plant growth or induce plant cell death is essential. This updated review reveals the multifaceted connection between nanoparticles, soil and water pollution, and plant biology in the context of agriculture.
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Affiliation(s)
- Muthu Thiruvengadam
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of Korea
| | - Hee Youn Chi
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of Korea
| | - Seung-Hyun Kim
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of Korea.
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