Antibacterial activity of polypyrrole-based nanocomposites: a mini-review

Silva, Fernando Antônio Gomes da; Vieira, Simone A.; Botton, Sônia de Ávila; Costa, Mateus Matiuzzi da

doi:10.1590/0104-1428.08020

Cited by 18 publications

(7 citation statements)

References 71 publications

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“…The PPy nanofibers show abrupt rise in the antibacterial activity against both bacteria, irrespective of the dye concentrations, as presented in Table . The antibacterial activity of PPy can be related to various effects which have been previously described by Silva Júnior et al The dye concentrations, 2.5 and 7.5 mM, show similar decreased MIC values of 2 and 4 mg mL –1 against S. aureus and E.…”

Section: Resultssupporting

confidence: 53%

“…The PPy nanofibers show abrupt rise in the antibacterial activity against both bacteria, irrespective of the dye concentrations, as presented in Table 3. The antibacterial activity of PPy can be related to various effects which have been previously described by Silva Juńior et al 41 The dye concentrations, 2.5 and 7.5 mM, show similar decreased MIC values of 2 and 4 mg mL −1 against S. aureus and E. coli, respectively, compared to PPy alone, signifying the enhanced antibacterial activity with incorporation of the dye. However, for the highest concentration, the response of the Gram-positive bacterium is reduced as the MIC value is increased to 4 mg mL −1 , but against the Gram-negative bacterium, no changes were observed.…”

Section: Methodssupporting

confidence: 57%

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Tuning the Conductivity, Morphology, and Capacitance with Enhanced Antibacterial Properties of Polypyrrole by Acriflavine Hydrochloride

Gupta

Acharya

Pištěková

et al. 2021

ACS Appl. Polym. Mater.

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In this study, a simple one-step preparation of polypyrrole (PPy) assisted by an organic dye, acriflavine hydrochloride (AF), was investigated. The presence of a dye resulted in the development of PPy nanofibers with the conductivity enhanced up to 14 S cm −1 . The structural analysis by Fourier-transform infrared and Raman spectroscopies confirmed the interaction of the AF with PPy. As far as the electrochemical activity of PPy is concerned, the gravimetric capacitance increased up to 85 F g −1 with the help of a AF. Additionally, a substantial improvement in the antibacterial activity against Staphylococcus aureus and Escherichia coli bacteria for all the PPy-containing organic dye was achieved. The conductivity, morphology, capacitance, and remarkable antibacterial properties of PPy tuned by an organic dye enable applications wherever the electroconductivity and antibacterial activity should meet requirements, for example, wound healing, electrochemical sensors, bioactuators, or even regenerative medicine.

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Section: Resultssupporting

confidence: 53%

Section: Methodssupporting

confidence: 57%

Tuning the Conductivity, Morphology, and Capacitance with Enhanced Antibacterial Properties of Polypyrrole by Acriflavine Hydrochloride

Gupta

Acharya

Pištěková

et al. 2021

ACS Appl. Polym. Mater.

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“…The development of polypyrrole-based nanocomposites as alternative antibacterial agents also represents a promising strategy to be applied against the prevailing multi-resistant bacteria. The composites are made up of different fillers (metal nanoparticles, carbon nanotubes, and polysaccharides) and strategies to improve their action (such as light and electrical stimulation) [19]. Graphene oxide-silver (Ag-GO) nanocomposite has emerged as a vital antibacterial agent very recently.…”

Section: Nanocomposites That Reveal Promising Antibacterial Activitymentioning

confidence: 99%

Antibacterial, Antifungal and Antiviral Nanocomposites: Recent Advances and Mechanisms of Action

Warangkar¹,

Deshpande²,

Totewad³

et al. 2023

Biocomposites - Recent Advances

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Over the past ten years, there has been a significant increase in research into the study of nanocomposites. Nanocomposites vary in their physical and chemical properties. In today’s era, eco-friendly, nontoxic, biocompatible, biobased fillers and composites should be synthesized to increase their societal value in various aspects. These materials have seen extensive use across several industries, from biosensors to biomedicine. Great strides have been made in the field of Microbiology, particularly as Antibacterial agents, among these applications. The objective of this review is to present a thorough analysis of several Nanocomposites that reveal promising antibacterial activity. Such Nanocomposites are reviewed in detail, as well as their antibacterial efficacy is discussed.

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“…The application of conducting polymers as antibacterial agents is also a very promising strategy for the development of novel antibacterial systems [51]. The electrostatic interactions between the conducting polymer and the bacteria lead to microorganism adhesion to the polymer surface.…”

Section: Antibacterial Properties Of Nanocomposites Incorporating Fullerenesmentioning

confidence: 99%

State of the Art in the Antibacterial and Antiviral Applications of Carbon-Based Polymeric Nanocomposites

Díez‐Pascual

2021

IJMS

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The development of novel approaches to prevent bacterial infection is essential for enhancing everyday life. Carbon nanomaterials display exceptional optical, thermal, and mechanical properties combined with antibacterial ones, which make them suitable for diverse fields, including biomedical and food applications. Nonetheless, their practical applications as antimicrobial agents have not been fully explored yet, owing to their relatively poor dispersibility, expensiveness, and scalability changes. To solve these issues, they can be integrated within polymeric matrices, which also exhibit antimicrobial activity in some cases. This review describes the state of the art in the antibacterial applications of polymeric nanocomposites reinforced with 0D fullerenes, 1D carbon nanotubes (CNTs), and 2D graphene (G) and its derivatives such as graphene oxide (GO) and reduced graphene oxide (rGO). Given that a large number of such nanocomposites are available, only the most illustrative examples are described, and their mechanisms of antimicrobial activity are discussed. Finally, some applications of these antimicrobial polymeric nanocomposites are reviewed.

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Antibacterial activity of polypyrrole-based nanocomposites: a mini-review

Cited by 18 publications

References 71 publications

Tuning the Conductivity, Morphology, and Capacitance with Enhanced Antibacterial Properties of Polypyrrole by Acriflavine Hydrochloride

Tuning the Conductivity, Morphology, and Capacitance with Enhanced Antibacterial Properties of Polypyrrole by Acriflavine Hydrochloride

Antibacterial, Antifungal and Antiviral Nanocomposites: Recent Advances and Mechanisms of Action

State of the Art in the Antibacterial and Antiviral Applications of Carbon-Based Polymeric Nanocomposites

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