Photo-Catalytic and Anti-microbial Activities of rGO/CuO Nanocomposite

Siddique, Saima; Zain‐ul‐Abdin,; Waseem, Muhammad; Naseem, Taiba; Bibi, Asia; Hafeez, Muhammad; Din, Salah Ud; Haq, Sirajul; Qureshi, Sadia

doi:10.1007/s10904-020-01760-x

Cited by 29 publications

(9 citation statements)

References 56 publications

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“…Siddique et. al ., have reported that 81 % of methylene blue dye is degraded in 240 min using rGO/CuO nanocomposites under UV light [39] . Also, rGO/ZnO rods showed 92 % and 93 % of photocatalytic degradation efficiency towards rhodamine B and methyl orange dyes under UV illumination [40] .…”

Section: Resultsmentioning

confidence: 99%

Antimicrobial, Photocatalytic, and Non‐Enzymatic Glucose Sensors Applications of Nanoplate‐Structured CuO:rGO Nanocomposites**

Preethi¹,

Pachamuthu²,

Senthil

et al. 2023

ChemistrySelect

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In the current work, reduced graphene oxide (rGO) layers (20, 40, 60, and 80 mg) are decorated over the surface of copper oxide (CuO) nanoparticles using a simple and in‐situ hydrothermal reduction method. The notable variation in the XRD peak intensity of CuO:rGO samples indicates the formation of nanocomposite. HRTEM and FESEM analysis reveal a nanoplate‐like morphology with uniform particle distribution. Further, the nanocomposites are characterized using FTIR, DRS UV Visible, and XPS techniques. Here, multi‐functional applications of the synthesized nanocomposites are investigated through photocatalytic dye degradation, antimicrobial, and electrochemical sensing analyses. The photocatalytic activity of synthesized CuO:rGO nanocomposites with hydrogen peroxide (H2O2) showed higher efficiency (98 %) than pure CuO. The effects of pH, various scavengers, and different dyes on the degradation efficiencies of CuO:rGO nanocomposites are also investigated. Using the agar well diffusion method, these nanocomposites exhibited a zone of inhibition value of 32 mm against both gram positive (Bacillus subtilis) and gram negative (Escherichia coli) bacterial strains when compared to pure rGO and CuO nanoparticles. Also, nanocomposites are found to be suitable for non‐enzymatic glucose sensing with a detection limit in the range from 0.05 to 4 mM, as evidenced from the cyclic voltammetry (CV) analysis.

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Section: Resultsmentioning

confidence: 99%

Antimicrobial, Photocatalytic, and Non‐Enzymatic Glucose Sensors Applications of Nanoplate‐Structured CuO:rGO Nanocomposites**

Preethi¹,

Pachamuthu²,

Senthil

et al. 2023

ChemistrySelect

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“…First, PDA on the surface of the ESM-PDA@rGO nanofilm fully contacted with the bacteria, which could effectively control bacterial division and hinder normal metabolism, thus achieving an antibacterial effect . Second, rGO can cause irreversible damage to bacterial cell membrane and lose cell integrity. , Third, the dispersibility of rGO is improved because of the introduction of PDA, and the antibacterial effect is enhanced. This reveals an effective antibacterial capacity of the ESM-PDA@rGO nanofilm for daily wearing.…”

Section: Resultsmentioning

confidence: 99%

“…34 Second, rGO can cause irreversible damage to bacterial cell membrane and lose cell integrity. 35,36 Third, the dispersibility of rGO is improved because of the introduction of PDA, and the antibacterial effect is enhanced. This reveals an effective antibacterial capacity of the ESM-PDA@rGO nanofilm for daily wearing.…”

Section: Flexibility and Conformabilitymentioning

confidence: 99%

Self-Assembled and Multilayer-Overlapped ESM-PDA@rGO Nanofilm-Based Flexible Wearable Sensor for Real-Time Body Temperature Monitoring

Zhang,

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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“…The S. aureus shows less resistance toward the antibiotic and synthesized MOF as compared E. coli. This difference in the activity could be attributed to the specific mode of action of the antibacterial agent and also to the variation in the cell wall composition of both types of bacteria [29,30].…”

Section: Antibacterial Activitymentioning

confidence: 99%

Nickel-L-leucine framework (MOF): synthesis, structural characterization, and potential applications in biological studies

Kiran,

Yasin,

Haq

et al. 2023

Mater. Res. Express

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The microbial resistance to antibiotics and the generation of free radicals inside as a result of different oxidative processes are modern global challenges for researchers. The exploration of MOFs as an antibacterial agent against pathogenic bacteria and as an antioxidant agent to scavenge free radicals as countermeasures to alleviate these problems. For this purpose, the metal organic framework (MOF), composed of L-leucine as a linker and nickel as a metal, was synthesized via a convenient, one-pot process under reflux conditions. The products formed were characterized through different techniques, including N2 adsorption experiments, Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The physicochemical analysis shows that the MOF has a crystalline nature with a surface area of 129 (±5) m2/g and a pore size of 1.95 nm. The synthesized MOF was then subjected to antibacterial activity, and the high activity was recorded against S. aureus. The dose-dependent antioxidant study shows the activity increases with increasing the concentration of the MOF. However, both the antibacterial and antioxidant activities were found to be less than those of the standard drugs (clindamycin and ascorbic acid).

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Photo-Catalytic and Anti-microbial Activities of rGO/CuO Nanocomposite

Cited by 29 publications

References 56 publications

Antimicrobial, Photocatalytic, and Non‐Enzymatic Glucose Sensors Applications of Nanoplate‐Structured CuO:rGO Nanocomposites**

Antimicrobial, Photocatalytic, and Non‐Enzymatic Glucose Sensors Applications of Nanoplate‐Structured CuO:rGO Nanocomposites**

Self-Assembled and Multilayer-Overlapped ESM-PDA@rGO Nanofilm-Based Flexible Wearable Sensor for Real-Time Body Temperature Monitoring

Nickel-L-leucine framework (MOF): synthesis, structural characterization, and potential applications in biological studies

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