Biosynthesized copper oxide nanoparticles (CuO NPs) enhances the anti-biofilm efficacy against K. pneumoniae and S. aureus

Bai, Boliang; Saranya, S.; Dheepaasri, Vaitheeswaran; Muniasamy, S.; Alharbi, Naiyf S.; Barathi, Selvaraj; Undal, Vinod S.; Gnanamangai, Balasubramanian Mythili

doi:10.1016/j.jksus.2022.102120

Cited by 24 publications

(8 citation statements)

References 33 publications

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“…21 Among many NPs, the most promised and widely studied is CuO NPs. Numerous researches indicated that CuO had higher anti-biolm activity against clinically isolated, biolm forming, multi-drug resistant micro-organisms such as Escherichia coli, Staphylococcus aureus [22][23][24] and Streptococcus mutans. 25 However, knowledges about the effect of TM doping on CuO's anti-bacterial activities, is still in its juvenile phase.…”

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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“…The presence of bright circular spots was detected in the present SAED profiles of (GS and CS) CuO NPs. This observation was proved by Bai et al ( 2022 ), who stated that bright circular spots indicated the single-crystalline property of the CuO NPs. The SAED showed diffraction patterns directed towards (111), (202), (312), and (402) planes for GS-CuO NPs, and directed towards (111), (020), and (113) planes for CS-CuO NPs, which were in accordance with JCPDS card no.…”

Section: Discussionmentioning

confidence: 64%

Is the trend toward a sustainable green synthesis of copper oxide nanoparticles completely safe for Oreochromis niloticus when compared to chemical ones?: using oxidative stress, bioaccumulation, and histological biomarkers

Badran,

Hamed

2024

Environ Sci Pollut Res

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Scientists worldwide have noticed that cutting-edge technologies can be used to produce nanoparticles (NPs) in a sustainable and environmentally friendly way, instead of the old methods. However, the effectiveness of this approach for aquatic environments and species still needs to be determined. Therefore, this study aims to compare between the toxicity of green and chemically synthesized copper oxide nanoparticles (GS and CS) CuO NPs at two different concentrations on Nile tilapia (Oreochromis niloticus) using various biomarkers. CuO NPs’ formation was proved, and their different characterizations were recorded. Then, the fish samples were randomly allocated in glass aquaria into five groups: one acted as a control group, and the other groups were exposed to two concentrations (25 and 50 mg/L) of GS-CuO NPs and CS-CuO NPs, separately, for 4 days. After the experimental time, in all groups that were exposed to two concentrations of both synthesized CuO NPs, the results revealed that glutathione peroxidase (GPx), catalase (CAT), superoxide dismutase (SOD), and thiobarbituric acid reactive substances (TBARS) levels were elevated in the liver and gills compared to glutathione reduced (GSH) content, which showed a significant decline. Bioaccumulation of Cu was more prevalent in the liver than in the gills, and the highest bioaccumulation capacity was more evident in the groups exposed to CS-CuO NPs. Moreover, the bioaccumulation of Cu caused severe histological changes in the liver and gills. In conclusion, the results suggested that GS-CuO NPs revealed less toxicity than CS-CuO NPs to the examined fish. However, they are still toxic, and their toxic effect cannot be overlooked.

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“…Figure 3 B represents the XRD spectra of the CuO nanospheres particles. The diffraction spectra of pure CuO NPs at 32.35°, 35.26°, 39.35°, 48.97°, 53.15°, 58.90°, 61.78°, 66.35°, 68.88°, and 72.13° corresponded to the (-110), (111), (111), (202), (020), (202), (113), (004), (220), and (311) crystal facets of CuO [ 22 ]. In the diffractogram, all the strong and sharp peaks were in accord with the standard JCPDS card no 01-089-5895.…”

Section: Discussionmentioning

confidence: 99%

Facile Synthesis and Characterization of Cupric Oxide Loaded 2D Structure Graphitic Carbon Nitride (g-C3N4) Nanocomposite: In Vitro Anti-Bacterial and Fungal Interaction Studies

Priya

Kariyanna

Karthi

et al. 2023

JoF

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The active and inexpensive catalyst cupric oxide (CuO) loaded foliar fertilizer of graphitic carbon nitride (g-C3N4) is investigated for biological applications due to its low cost and easy synthesis. The synthesized CuO NPs, bulk g-C3N4, exfoliated g-C3N4, and different weight percentages of 30 wt%, 40 wt%, 50 wt%, 60 wt%, and 70 wt% CuO-loaded g-C3N4 are characterized using different analytical techniques, including powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, and ultraviolet-visible spectroscopy. The nanocomposite of CuO NPs loaded g-C3N4 exhibits antibacterial activity against Gram-positive bacteria (Staphylococcus aureus and Streptococcus pyogenes) and Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa). The 20 μg/mL of 70 wt% CuO/g-C3N4 nanocomposite showed an efficiency of 98% for Gram-positive bacteria, 80% for E. Coli, and 85% for P. aeruginosa. In the same way, since the 70 wt% CuO/g-C3N4 nanocomposite showed the best results for antibacterial activity, the same compound was evaluated for anti-fungal activity. For this purpose, the fungi Fusarium oxysporum and Trichoderma viride were used. The anti-fungal activity experiments were not conducted in the presence of sunlight, and no appreciable fungal inhibition was observed. As per the literature, the presence of the catalyst g-C3N4, without an external light source, reduces the fungal inhibition performance. Hence, in the future, some modifications in the experimental conditions should be considered to improve the anti-fungal activity.

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Biosynthesized copper oxide nanoparticles (CuO NPs) enhances the anti-biofilm efficacy against K. pneumoniae and S. aureus

Cited by 24 publications

References 33 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

Is the trend toward a sustainable green synthesis of copper oxide nanoparticles completely safe for Oreochromis niloticus when compared to chemical ones?: using oxidative stress, bioaccumulation, and histological biomarkers

Facile Synthesis and Characterization of Cupric Oxide Loaded 2D Structure Graphitic Carbon Nitride (g-C3N4) Nanocomposite: In Vitro Anti-Bacterial and Fungal Interaction Studies

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