Antibacterial effect of copper nanoparticles produced in a <i>Shewanella</i>-supported non-external circuit bioelectrical system on bacterial plant pathogens

Luong, Huong Thu; Nguyen, Canh Xuan; Lam, Thuong Thuong; Nguyen, Thi-Hanh; Dang, Quang Le; Lee, Ji-Hoon; Hur, Hor‐Gil; Hanh, Nguyen Thi; Ho, Cuong Tu

doi:10.1039/d1ra08187j

Cited by 10 publications

(5 citation statements)

References 28 publications

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“…Copper nanoparticles and copper-functionalised nanomaterials exhibit antibacterial properties against various microbes, including Gram-positive and Gram-negative bacteria and fungi [ 29 , 52 , 53 , 54 ]. Zhao et al [ 55 ] investigated the susceptibility of four bacteria ( Staphylococcus aureus , Bacillus subtilis , Escherichia coli , and Pseudomonas aeruginosa ) and four fungi species ( Candida guilliermondii , Candida krusei , Candida glabrata , and Candida albicans ) to copper nanoparticles synthesised in the presence of Allium Eriophyllum leaf extract.…”

Section: Antibacterial Properties Of Copper and Copper-based Nanomate...mentioning

confidence: 99%

Section: Antibacterial Properties Of Copper and Copper-based Nanomate...mentioning

confidence: 99%

“…Copper and copper-based nanoparticles have excellent antibacterial activity against Staphylococcus aureus (including methicillin-resistant S. aureus ), Bacillus subtilis , Proteus vulgaris , and Escherichia coli [ 29 , 30 ]. Copper-based nanoparticles were found to have even higher antibacterial properties than Ag NPs [ 31 ], and some reports have shown a synergistic antibacterial effect of copper or copper oxide(II) nanoparticles in combinations with silver nanoparticles [ 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

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Copper and Copper-Based Nanoparticles in Medicine—Perspectives and Challenges

Woźniak-Budych,

Staszak,

Staszak

2023

Molecules

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Nanotechnology has ushered in a new era of medical innovation, offering unique solutions to longstanding healthcare challenges. Among nanomaterials, copper and copper oxide nanoparticles stand out as promising candidates for a multitude of medical applications. This article aims to provide contemporary insights into the perspectives and challenges regarding the use of copper and copper oxide nanoparticles in medicine. It summarises the biomedical potential of copper-based nanoformulations, including the progress of early-stage research, to evaluate and mitigate the potential toxicity of copper nanomaterials. The discussion covers the challenges and prospects of copper-based nanomaterials in the context of their successful clinical translation. The article also addresses safety concerns, emphasizing the need for toxicity assessments of nanomedicines. However, attention is needed to solve the current challenges such as biocompatibility and controlled release. Ongoing research and collaborative efforts to overcome these obstacles are discussed. This analysis aims to provide guidance for the safe and effective integration of copper nanoparticles into clinical practice, thereby advancing their medical applications. This analysis of recent literature has highlighted the multifaceted challenges and prospects associated with copper-based nanomaterials in the context of their translation from the laboratory to the clinic. In particular, biocompatibility remains a formidable hurdle, requiring innovative solutions to ensure the seamless integration into the human body. Additionally, achieving the controlled release of therapeutic agents from copper nanoparticles poses a complex challenge that requires meticulous engineering and precise design.

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Section: Antibacterial Properties Of Copper and Copper-based Nanomate...mentioning

confidence: 99%

Section: Antibacterial Properties Of Copper and Copper-based Nanomate...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Copper and Copper-Based Nanoparticles in Medicine—Perspectives and Challenges

Woźniak-Budych,

Staszak,

Staszak

2023

Molecules

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“…Furthermore, the nano forms of active ingredients and pesticides may intend to be less harmful to users, environmentally friendly, and may reduce the development of pest resistance. [24,37,38] Nanotechnology has been applied to prevent and treat diseases caused by bacteria, viruses, and fungi on plants, and animals, and to preserve agricultural products. Micronutrient nanoparticles also act as a biological stimulant.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Evaluation of Copper Oleate Nanoparticles Against Citrus Anthracnose Caused by Colletotrichum gloeosporioides: In Situ Experiments, In Vitro Bioassays, and Field Trials

Le,

Nguyen,

et al. 2024

ChemistrySelect

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Anthracnose in citrus is a severe disease caused by Colletotrichum species. Synthetic fungicides have been used to combat this citrus disease; however, they may have adverse health effects on humans and cause harmful environmental impacts. During a search for environmentally friendly fungicides, we successfully prepared organic copper (copper (II) oleate) nanoparticles by using natural chitosan polymer as a coating agent and stabilizer and by combining an exchange reaction and in situ coating method. Organic copper nanoparticles coated with chitosan polymer (Cu‐oleate@CS NPs) with Cu contents ranged from 5.0 to 6.0 % by weight. The nanoparticles have an average particle size ranging from 50 nm to 60 nm (TEM), covered by a layer of polymer with a thickness of about 10 to 12 nm. The analytical results of zeta potential and dynamic solution size showed that the nanoparticles are uniformly dispersed (90–120 nm by DLS), with high stability (zeta potential=−61.7 mV) and low cytoxicity to Vero healthy cell line. Cu‐oleate@CS NPs significantly inhibited the mycelial growth of C. gloeosporioides in vitro at 500 and 1000 μg/mL. In field trials, the best antifungal efficacy of Cu‐oleate@CS NPs against citrus anthracnose on orange plants was found at a spray concentration of 0.33 % with a disease control efficacy of 54.18 % at 14 days after the second spraying. Our study results demonstrated a novel preparation of Cu‐oleate@CS NPs and suggested that it could be used as a promising nanoformulation to control citrus anthracnose in vitro and in vivo.

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“…Dada la comprobada actividad antimicrobiana que han demostrado las CuNPs y las CuONPs, resulta de gran interés evaluar metodologías de síntesis que permitan su obtención, y poder así posteriormente evaluar su potencial aplicación en el control biológico de plagas como Fusarium oxysporum, Ralstonia solanacearum spp. y Xanthomonas spp., las cuales afectan cultivos importantes para Colombia, como es el caso del plátano, el tomate, el pimentón, la berenjena y la papa (25,26). De acuerdo con ello, el objetivo del presente estudio fue comparar diferentes protocolos para la síntesis de CuNPs y CuONPs a partir de métodos de química verde y biológica reportados en la literatura.…”

Section: Introductionunclassified

Evaluación de protocolos de síntesis de nanopartículas de cobre u óxidos de cobre

Acevedo-León,

Ossa-Orozco,

Torres-López

2023

Ing.

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Contexto: Las nanopartículas de cobre u óxidos de cobre son materiales de interés para la agricultura por sus múltiples propiedades, entre ellas su actividad antimicrobiana, que resulta útil en el control biológico de plagas. Diversos autores han reportado que las nanopartículas con tamaño inferior a 50 nm tienen mayor efecto antimicrobiano. De acuerdo con esto, este estudio tuvo como objetivo comparar diferentes protocolos de síntesis, con el propósito de obtener nanopartículas de cobre u óxidos de cobre de tamaños adecuados para su futura evaluación en el control biológico de especies que comúnmente afectan los cultivos en Colombia. Método: Se evaluaron cinco protocolos de síntesis, cuatro de ellos clasificados como métodos de síntesis química verde y el otro como síntesis biológica. Las nanopartículas obtenidas fueron caracterizadas mediante espectroscopía UV-Vis, DLS, TEM, FTIR, DRX, SEM y EDS. Resultados: El protocolo 3, que utiliza sulfato de cobre pentahidratado como sal precursora, ácido ascórbico como agente reductor y almidón como estabilizante, resultó ser el más adecuado, pues con él se obtuvieron nanopartículas esféricas de cobre metálico con un tamaño promedio de 4,5 nm. Conclusiones: Fue posible comparar las metodologías de obtención de nanopartículas de cobre y óxidos de cobre, analizar el efecto de las condiciones de síntesis en sus características y finalmente obtener un protocolo para sintetizar nanopartículas de cobre con un tamaño adecuado para un potencial uso en aplicaciones de control biológico.

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Antibacterial effect of copper nanoparticles produced in a Shewanella-supported non-external circuit bioelectrical system on bacterial plant pathogens

Abstract: The inhibition of copper nanoparticles produced in a nec_BES to plant pathogens was investigated in this study.

Cited by 10 publications

References 28 publications

Copper and Copper-Based Nanoparticles in Medicine—Perspectives and Challenges

Copper and Copper-Based Nanoparticles in Medicine—Perspectives and Challenges

Synthesis and Evaluation of Copper Oleate Nanoparticles Against Citrus Anthracnose Caused by Colletotrichum gloeosporioides: In Situ Experiments, In Vitro Bioassays, and Field Trials

Evaluación de protocolos de síntesis de nanopartículas de cobre u óxidos de cobre

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