Enhanced Biosynthesis Synthesis of Copper Oxide Nanoparticles (CuO-NPs) for their Antifungal Activity Toxicity against Major Phyto-Pathogens of Apple Orchards

Venugopal, Kalyanaraman; Bhat, Arif Hussain; Kavitha, K.; Ramanan, Arunachalam; Rajagopal, K.; Srinivasan, Ramasamy; Manikandan, E.

doi:10.1007/s11095-020-02966-x

Cited by 51 publications

(14 citation statements)

References 38 publications

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“…11,12 Recently, CuO NPs have been largely prepared for various applications in elds ranging from semi-conductors to biomedical. For the latter, many studies involving CuO NPs have been carried out on anti-bacterial, 13,14 anti-biolm, 14 anti-cancer, 15 anti-microbial, 16 and anti-fungal 17 aspects. Among these studies, biolms were explored several a Laboratory of Materials for Energy and Environment, and Modeling (LMEEM), Faculty of Sciences, University of Sfax, B.P: 1171, 3038, Tunisia.…”

Section: Introductionmentioning

confidence: 99%

Non-doped and transition metal-doped CuO nano-powders: structure-physical properties and anti-adhesion activity relationship

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Non-doped and transition metal-doped CuO nano-powders: structure-physical properties and anti-adhesion activity relationship

et al. 2022

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“…Till date, CuO NPs have been synthesized through various plant extracts, fungal and bacterial cultures such as Malus domestica, Azadirachta indica, and Eicchornia, etc. ( Ahmad et al, 2014 ; Vanathi et al, 2016 ; Choudhary et al, 2017 ). Plant extract-mediated CuO NPs have minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) at 25, 100, and 1000 mg/ml.…”

Section: Resultsmentioning

confidence: 99%

Biocontrol potential of mycogenic copper oxide nanoparticles against Alternaria brassicae

et al. 2022

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The biological synthesis of nanoparticles using fungal cultures is a promising and novel tool in nano-biotechnology. The potential culture of Trichoderma asperellum (T. asperellum) has been used to synthesize copper oxide nanoparticles (CuO NPs) in the current study. The necrotrophic infection in Brassica species is caused due to a foliar pathogen Alternaria brassicae (A. brassicae). Mycogenic copper oxide nanoparticles (M-CuO NPs) were characterized by spectroscopic and microscopic techniques such as UV–visible spectrophotometry (UV–vis), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The antifungal potential of CuO NPs was studied against A. brassicae. M-CuO NPs exhibited a surface plasmon resonance (SPR) at 303 nm, and XRD confirmed the crystalline phase of NPs. FTIR spectra confirmed the stretching of amide bonds, and the carbonyl bond indicated the presence of enzymes in T. asperellum filtrate. SEM and TEM confirmed the spherical shape of M-CuO NPs with an average size of 22 nm. Significant antifungal potential of M-CuO NPs was recorded, as it inhibited the growth of A. brassicae up to 92.9% and 80.3% in supplemented media with C-CuO NPs at 200 ppm dose. Mancozeb and propiconazole inhibited the radial growth up to 38.7% and 44.2%. SEM confirmed the morphological changes in hyphae and affected the sporulation pattern. TEM revealed hardly recognizable organelles, abnormal cytoplasmic distribution, and increased vacuolization, and light microscopy confirmed the conidia with reduced diameter and fewer septa after treatment with both types of NPs. Thus, M-CuO NPs served as a promising alternative to fungicides.

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“…e process is characterized by treating plant extracts with metal salts in different combinations that lead to the reduction of metal salt and subsequent capping and stabilization of NPs [35,36]. e convergence of nanotechnology and biotechnology has revealed exciting results for different health-hygiene, nanomedicinal, environmental, and industrial applications [37][38][39].…”

Section: Nano-biotechnology An Emerging Interfacementioning

confidence: 99%

Green Nano-Biotechnology: A New Sustainable Paradigm to Control Dengue Infection

Zohra

Khalil

Saeed

et al. 2022

Bioinorganic Chemistry and Applications

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Dengue is a growing mosquito-borne viral disease prevalent in 128 countries, while 3.9 billion people are at high risk of acquiring the infection. With no specific treatment available, the only way to mitigate the risk of dengue infection is through controlling of vector, i.e., Aedes aegypti. Nanotechnology-based prevention strategies like biopesticides with nanoformulation are now getting popular for preventing dengue fever. Metal nanoparticles (NPs) synthesized by an eco-friendly process, through extracts of medicinal plants have indicated potential anti-dengue applications. Green synthesis of metal NPs is simple, cost-effective, and devoid of hazardous wastes. The recent progress in the phyto-synthesized multifunctional metal NPs for anti-dengue applications has encouraged us to review the available literature and mechanistic aspects of the dengue control using green-synthesized NPs. Furthermore, the molecular bases of the viral inhibition through NPs and the nontarget impacts or hazards with reference to the environmental integrity are discussed in depth. Till date, major focus has been on green synthesis of silver and gold NPs, which need further extension to other innovative composite nanomaterials. Further detailed mechanistic studies are required to critically evaluate the mechanistic insights during the synthesis of the biogenic NPs. Likewise, detailed analysis of the toxicological aspects of NPs and their long-term impact in the environment should be critically assessed.

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Enhanced Biosynthesis Synthesis of Copper Oxide Nanoparticles (CuO-NPs) for their Antifungal Activity Toxicity against Major Phyto-Pathogens of Apple Orchards

Cited by 51 publications

References 38 publications

Non-doped and transition metal-doped CuO nano-powders: structure-physical properties and anti-adhesion activity relationship

Non-doped and transition metal-doped CuO nano-powders: structure-physical properties and anti-adhesion activity relationship

Biocontrol potential of mycogenic copper oxide nanoparticles against Alternaria brassicae

Green Nano-Biotechnology: A New Sustainable Paradigm to Control Dengue Infection

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