Fabrication of a bifunctionalyzed <i>Calotropis gigantea</i> inspired Ag–Cu–Co trimetal oxide for the remediation of methylene blue, and its larvicidal and antibacterial applications

Nivetha, A.; Sakthivel, C.; Hemalatha, J.; Senthamil, C.; Prabha, I.

doi:10.1039/d3nj01706k

Cited by 7 publications

(1 citation statement)

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“…Different studies showed that the as-synthesized Ag/Cu-NMCs could be an efficient substitute for an antimicrobial agent against drug-resistant microbes and plant-pathogenic bacteria [21,22]. The Ag-Cu-Co oxide caused a maximum zone of inhibition against E. coli that was found to be 25 mm [23]. The fabricated nanostructured surfaces (Ag-CuxO nanostructures) exhibit excellent bactericidal efficiency against E. coli (Gram-negative) and Staphylococcus aureus (Gram-positive) [24].…”

Section: Introductionmentioning

confidence: 99%

Biogenic Nanoparticles Silver and Copper and Their Composites Derived from Marine Alga Ulva lactuca: Insight into the Characterizations, Antibacterial Activity, and Anti-Biofilm Formation

Hamouda,

Alharthi,

Alotaibi

et al. 2023

Molecules

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Bacterial pathogens cause pain and death, add significantly to the expense of healthcare globally, and pose a serious concern in many aspects of daily life. Additionally, they raise significant issues in other industries, including pharmaceuticals, clothing, and food packaging. Due to their unique properties, a great deal of attention has been given to biogenic metal nanoparticles, nanocomposites, and their applications against pathogenic bacteria. This study is focused on biogenic silver and copper nanoparticles and their composites (UL/Ag2 O-NPS, Ul/CuO-NPs, and Ul/Ag/Cu-NCMs) produced by the marine green alga Ulva lactuca. The characterization of biogenic nanoparticles UL/Ag2 O-NPS and Ul/CuO-NPs and their composites Ul/Ag/Cu-NCMs has been accomplished by FT-IR, SEM, TEM, EDS, XRD, and the zeta potential. Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) experiments were conducted to prove antibacterial activity against both Gram-positive and Gram-negative bacteria and anti-biofilm. The FTIR spectroscopy results indicate the exiting band at 1633 cm−1, which represents N–H stretching in nanocomposites, with a small shift in both copper and silver nanoparticles, which is responsible for the bio-reduction of nanoparticles. The TEM image reveals that the Ul/Ag/Cu-NCMs were hexagonal, and the size distribution ranged from 10 to 35 nm. Meanwhile, Ul/CuO-NPs are rod-shaped, whereas UL/Ag2 O-NPS are spherical. The EDX analysis shows that Cu metal was present in a high weight percentage over Ag in the case of bio-Ag/Cu-NCMs. The X-ray diffraction denotes that Ul/Ag/Cu-NCMs, UL/CuO-NPs, and UL/Ag2 O-NPS were crystalline. The results predicted by the zeta potential demonstrate that Ul/Ag/Cu-NCMs were more stable than Ul/CuO-NPs. The antibacterial activity of UL/Ag2 O-NPS, Ul/Ag/Cu-NCMs, and UL/CuO-NPs was studied against eleven Gram-negative and Gram-positive multidrug-resistant bacterial species. The maximum inhibition zones were obtained with UL/Ag2 O-NPS, followed by Ul/Ag/Cu-NCMs and Ul/CuO-NPs in all the tested bacteria. The maximum anti-biofilm percentage formed by E. coli KY856933 was obtained with UL/Ag2 O-NPS. These findings suggest that the synthesized nanoparticles might be a great alternative for use as an antibacterial agent against different multidrug-resistant bacterial strains.

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Section: Introductionmentioning

confidence: 99%

Biogenic Nanoparticles Silver and Copper and Their Composites Derived from Marine Alga Ulva lactuca: Insight into the Characterizations, Antibacterial Activity, and Anti-Biofilm Formation

Hamouda,

Alharthi,

Alotaibi

et al. 2023

Molecules

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Silver sulphide nanoparticles (Ag₂SNPs) synthesized using Phyllanthus emblica fruit extract for enhanced antibacterial and antioxidant properties

Renuka,

Thilagavathi,

Inmozhi

et al. 2024

Microscopy Res & Technique

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In this study, silver sulfide nanoparticles (Ag2SNP's) were successfully produced by using fruit extracts of Phyllanthus emblica. UV–vis, FTIR, XRD with SEM and EDX techniques were used for the synthesis process and for characterization of the resulting nanostructures. According to the findings, the fabricated nanostructure had a monoclinic crystal structure, measuring 44 nm in grain size, and its strain was 1.82 × 10−3. As revealed by SEM analysis, the synthesized nanostructure consists of irregular spherical and triangular shapes. The presence of silver (Ag) and sulfur (S) was also confirmed through EDX spectra. Furthermore, Ag2S nanoparticles were tested for their ability to effectively inhibit gram‐positive and gram‐negative bacterial growth. As a result of this study, it was clearly demonstrated that Ag2S nanoparticles possess powerful antibacterial properties, particularly when it came to inhibiting Escherichia coli growth. Ag2S nanoparticles had high total H2O2 and flavonoid concentrations and the greatest overall antioxidant activity, according to the evaluation of antioxidant activity of the samples. The results obtained from the P. emblica fruit extract were followed by those obtained from Ag2S nanoparticles were reported in detail.Research Highlights Innovative Ag2SNP synthesis using Phyllanthus emblica fruit extract. SEM with EDX revealed a monoclinic crystal structure with a grain size of 44 nm and a strain of 1.82 × 10−3. Many of these applications are demonstrated by the potential of Ag2SNPs to treat and combat bacteria, particularly Escherichia coli. A peak at 653 cm−1 indicates the presence of primary sulfide aliphatic C‐S extension vibrations. The abundant H2O2 and NO2 found in P. emblica nanocomposites make them potent antioxidants.

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Role of Graphene-Anchored Stable Compounds for the Sustainable Photocatalytic Activities for the Removal of Hazardous Compounds in Medicinal Waste

Prabha,

Nivetha,

Senthamil

et al. 2024

Advanced Structured Materials

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Fabrication of a bifunctionalyzed Calotropis gigantea inspired Ag–Cu–Co trimetal oxide for the remediation of methylene blue, and its larvicidal and antibacterial applications

Abstract: The Calotropis gigantea supported Ag-Cu-Co trimetal oxide has synthesized via green route for larvicidal, antioxidant, antibacterial and photocatalytic degradation studies. The optical and structural properties of synthesized nanoparticles were analyzed...

Cited by 7 publications

References 56 publications

Biogenic Nanoparticles Silver and Copper and Their Composites Derived from Marine Alga Ulva lactuca: Insight into the Characterizations, Antibacterial Activity, and Anti-Biofilm Formation

Biogenic Nanoparticles Silver and Copper and Their Composites Derived from Marine Alga Ulva lactuca: Insight into the Characterizations, Antibacterial Activity, and Anti-Biofilm Formation

Silver sulphide nanoparticles (Ag₂SNPs) synthesized using Phyllanthus emblica fruit extract for enhanced antibacterial and antioxidant properties

Role of Graphene-Anchored Stable Compounds for the Sustainable Photocatalytic Activities for the Removal of Hazardous Compounds in Medicinal Waste

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Fabrication of a bifunctionalyzed Calotropis gigantea inspired Ag–Cu–Co trimetal oxide for the remediation of methylene blue, and its larvicidal and antibacterial applications

Abstract: The Calotropis gigantea supported Ag-Cu-Co trimetal oxide has synthesized via green route for larvicidal, antioxidant, antibacterial and photocatalytic degradation studies. The optical and structural properties of synthesized nanoparticles were analyzed...

Cited by 7 publications

References 56 publications

Biogenic Nanoparticles Silver and Copper and Their Composites Derived from Marine Alga Ulva lactuca: Insight into the Characterizations, Antibacterial Activity, and Anti-Biofilm Formation

Biogenic Nanoparticles Silver and Copper and Their Composites Derived from Marine Alga Ulva lactuca: Insight into the Characterizations, Antibacterial Activity, and Anti-Biofilm Formation

Silver sulphide nanoparticles (Ag2SNPs) synthesized using Phyllanthus emblica fruit extract for enhanced antibacterial and antioxidant properties

Role of Graphene-Anchored Stable Compounds for the Sustainable Photocatalytic Activities for the Removal of Hazardous Compounds in Medicinal Waste

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Silver sulphide nanoparticles (Ag₂SNPs) synthesized using Phyllanthus emblica fruit extract for enhanced antibacterial and antioxidant properties