DC electrical conductivity retention and antibacterial aspects of microwave-assisted ultrathin CuO@polyaniline composite

Ansari, Mohd Omaish; Oves, Mohammad; Salah, Numan; Asad, Mohammad; Kumar, Rajeev; Hasan, P.M.Z.; Alshahrie, Ahmed; Darwesh, Reem

doi:10.1007/s11696-020-01201-6

Cited by 14 publications

(7 citation statements)

References 36 publications

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“…Pure CuO shows ultrathin sheets of varying dimensions ranging from ~50–700 nm in Figure 3 a. The sheets across some regions are well stacked together while at other places sheets with fibrillar-like structures are arranged in a haphazard manner, which may be due to breakage or exfoliation of larger sheets [ 36 ]. The rGO@CuO nanocomposite in Figure 3 b shows a similar morphology to CuO and the sheets of rGO are not clearly observed.…”

Section: Resultsmentioning

confidence: 99%

Silver Nanoparticles Embedded on Reduced Graphene Oxide@Copper Oxide Nanocomposite for High Performance Supercapacitor Applications

Ansari

Parveen

et al. 2021

Materials

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In this work, silver (Ag) decorated reduced graphene oxide (rGO) coated with ultrafine CuO nanosheets (Ag-rGO@CuO) was prepared by the combination of a microwave-assisted hydrothermal route and a chemical methodology. The prepared Ag-rGO@CuO was characterized for its morphological features by field emission scanning electron microscopy and transmission electron microscopy while the structural characterization was performed by X-ray diffraction and Raman spectroscopy. Energy-dispersive X-ray analysis was undertaken to confirm the elemental composition. The electrochemical performance of prepared samples was studied by cyclic voltammetry and galvanostatic charge-discharge in a 2M KOH electrolyte solution. The CuO nanosheets provided excellent electrical conductivity and the rGO sheets provided a large surface area with good mesoporosity that increases electron and ion mobility during the redox process. Furthermore, the highly conductive Ag nanoparticles upon the rGO@CuO surface further enhanced electrochemical performance by providing extra channels for charge conduction. The ternary Ag-rGO@CuO nanocomposite shows a very high specific capacitance of 612.5 to 210 Fg−1 compared against rGO@CuO which has a specific capacitance of 375 to 87.5 Fg−1 and the CuO nanosheets with a specific capacitance of 113.75 to 87.5 Fg−1 at current densities 0.5 and 7 Ag−1, respectively.

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Section: Resultsmentioning

confidence: 99%

Silver Nanoparticles Embedded on Reduced Graphene Oxide@Copper Oxide Nanocomposite for High Performance Supercapacitor Applications

Ansari

Parveen

et al. 2021

Materials

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“…In this regard, nonosized CuO is one of the most investigated agents. Ansari and coworkers realized PANI/ultrathin nanosheet CuO nanocomposites by a microwave assisted approach and demonstrated their significant antimicrobial activity against Bacillus subtilis and Pseudomonas aeruginosa [168]. The authors clearly reported the high impact of the materials on the bacterial cell morphology, proposing that this is due to the oxidation of bacterial membranes by CuO leading to free radicals production, that negatively affects membrane transport system and, as a consequence, the metabolism and growth.…”

Section: Antimicrobial Activitymentioning

confidence: 99%

Advances in Polyaniline for Biomedical Applications

Pina

2022

CMC

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: Conducting polymers are an outstanding class of materials characterized by electroconducting properties that make them good candidates for applications in several sectors. Among them, polyaniline (PANI) is unique for its extraordinary ability to conduct electricity, biocompatibility and low toxicity. In spite of its surprising features, to date PANI have not yet found application in the practical uses, because of its low solubility and processability. In order to overcome these limitations, different approaches have been developed, such as polymer grafting processes, PANI-based composites and blends preparation. The present review describes the most recent advances on PANI applications in biomedical fields, such as antioxidant, antimicrobial and antivirus activity, drug delivery, cancer therapy, etc. A look to the synthetic procedures is also reported because it is crucial for the realization of more innovative materials in the next future.

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“…Antimicrobial activity has also been demonstrated for multi-walled carbon nanotubes. The role of Cu nanoparticles in antibacterial activity has gradually been investigated [48]. The polypyrrole/Cu-doped ZnO nanocomposite for sensor development and antibacterial investigations was recently reported [49].…”

Section: Metal Oxide and Its Medical Applicationmentioning

confidence: 99%

Nanotechnological Advancement in Antimicrobial Drug Designing

Oves¹,

Rauf²

2021

Preprint

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The global spread of multidrug-resistant (MDR) microbial infections is currently one of the most severe risks to global public health, with 10 million fatalities expected by 2050 unless action is taken. Nanotechnology has revolutionized science and medicine. The reliance on nanotechnology is growing. Nanoparticles have distinct properties that improve biological, chemical, and physical properties studied for various uses. A significant area of attention in the synthesis of nanoscale modulators is the utilization of crude formulations, retro-synthesized, and pure chemicals, mainly from herbal sources, with fewer adverse effects. Green chemistry has devised a tangential technique for synthesizing metals and metal oxides to produce nanoparticles. Plant extracts (leaves, stems, and shoots) and microorganisms (bacteria, fungus, and yeast) are used as reducing intermediates to make nanoparticles. Studies in microbiology have shown that nanoparticles kill bacteria, fungi, viruses, and protozoa. These green nanoparticles contain antibacterial, antifungal, and anti-inflammatory effects. Most nanoparticles have high antibacterial properties, indicating they may be used to combat diseases and biological contaminants. These nanoparticles have antibacterial action against pathogenic microorganisms that cause serious illnesses, including multidrug-resistant pathogens. The current research will pave the way for future applications and improved methods for producing nanoparticles, paving the way for an innovative route in nano-life sciences with widespread recognition.

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DC electrical conductivity retention and antibacterial aspects of microwave-assisted ultrathin CuO@polyaniline composite

Cited by 14 publications

References 36 publications

Silver Nanoparticles Embedded on Reduced Graphene Oxide@Copper Oxide Nanocomposite for High Performance Supercapacitor Applications

Silver Nanoparticles Embedded on Reduced Graphene Oxide@Copper Oxide Nanocomposite for High Performance Supercapacitor Applications

Advances in Polyaniline for Biomedical Applications

Nanotechnological Advancement in Antimicrobial Drug Designing

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