Evidence map›Paper›PMID 38568262›Full record

ArticleBioprocess and biosystems engineering2024

Synthesis of biopolymer blends nanocomposites embedded with mono-(Ag, Fe) and bi-(Ag-Fe) metallic nanoparticles using an eco-friendly approach for antimicrobial activities.

Praveen Ramisetti, Madhuri Dumpala, Suresh Kumar Danikonda, Ramesh Suramoni, Bikshamaiah Nampally, Madhukar Katakam

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Article in Bioprocess and biosystems engineering, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Praveen RamisettiPolymer Nanocomposites and Functional Materials Laboratory, Department of Physics, University College of Science, Osmania University, Hyderabad, 500 007, Telangana, India.
Madhuri DumpalaPolymer Nanocomposites and Functional Materials Laboratory, Department of Physics, University College of Science, Osmania University, Hyderabad, 500 007, Telangana, India.
Suresh Kumar DanikondaDepartment of Physics, University P G College, Satavahana University, Godavarikhani, 505 209, Telangana, India.
Ramesh SuramoniUniversity Institute of Sciences and Applied Arts (UISAA), Guru Nanak University, Ibrahimpatnam, Hyderabad, 500100, Telangana, India.
Bikshamaiah NampallyDepartment of Physics, University College of Science, Mahatma Gandhi University, Nalgonda, 508 001, Telangana, India.
Madhukar KatakamPolymer Nanocomposites and Functional Materials Laboratory, Department of Physics, University College of Science, Osmania University, Hyderabad, 500 007, Telangana, India. mkatakam@osmania.ac.in.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plant-mediated solution casting is used to develop eco-friendly polymer blend nanocomposites from polyvinyl alcohol (PVA) and polyvinylpyrrolidone (PVP) doped with Silver (Ag), Ferrous (Fe) monometallic and Silver-Ferrous (Ag-Fe) bimetallic nanoparticles (NPs). These nanocomposites were studied to understand their electromagnetic interface (EMI) shielding efficiency and antimicrobial activities, besides evaluating their physical and chemical properties. The Fourier transform infrared (FTIR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and energy dispersive X-ray (EDX) characterization techniques were used to examine the interactions between the polymers, the presence of silver and ferrous particles in the composites, the crystallinity shift, the surface morphology, the shape and size of the nanoparticles and the distribution of the nanoparticles in the composites. The FTIR spectra showed the interactions among the components of the composites. According to XRD spectra, the incorporation of nanoparticles into the PVA polymer significantly reduced the crystalline character of the polymer from 0.38 to 0.24 for the composition consisting of silver and iron nanoparticles in equal proportion. The results from SEM, EDX and XRD corroborate the presence of nanoparticle forms. The thermogravimetric analysis (TGA) tests reveal that the thermal stability of bimetallic composites is greater than that of monometallic composites. The tensile properties showed that the addition of nanoparticles to the PVA/PVP polymer matrix increased its mechanical strength from 59.3 MPa to 85.5 MPa. We examined its efficacy against Escherichia coli, Staphylococcus aureus and Candida albicans as microorganisms. Good antibacterial and antifungal activity was observed. The bimetallic composites demonstrated greater activity than monometallic composites against these bacterial and fungal species. All bimetallic nanocomposites have shown enhanced, loss due to reflection, loss due to absorption, and the total EMI shielding efficiency at 8 GHz (X-band) and 16 GHz (Ku-band) frequency. All these results ratify, that these newly developed bio nanocomposites are most suitable in many applications, in EMI shielding, nanotechnology, and medical fields.

Indexed as

Anti-Infective AgentsMetal NanoparticlesNanocompositesSilverBiopolymersCandida albicansEscherichia coliGreen Chemistry TechnologyIronMicrobial Sensitivity TestsPolyvinyl AlcoholSpectroscopy, Fourier Transform InfraredStaphylococcus aureusX-Ray DiffractionAnti-Infective AgentsBiopolymersIronPolyvinyl AlcoholSilverAntifungalAntimicrobialBimetallic nanocompositesBiopolymer blendsEco-friendly synthesisEMI shielding

Identifiers

PMID38568262

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