Investigation of Antibacterial Effect of <i>Hypericum perforatum</i> L. on Woolen Fabrics

Yılmaz, Fazlıhan

doi:10.14504/ajr.7.4.4

Cited by 15 publications

(2 citation statements)

References 18 publications

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“…Antimicrobial textiles are functional materials, which can kill microorganisms or inhibit their growth, being extremely useful to prevent the degradation of the materials, to avoid cross-contamination, or even to treat microbial infections [1][2][3] . Antimicrobial agents applied in textile materials should present low toxicity to consumers, be effective against a large spectrum of pathogens and be selective only to unwanted microorganisms 2 .…”

Section: Introductionmentioning

confidence: 99%

Synergistic anti‐bacterial activity of imidazole‐based azo dyes with polyvinylpyrrolidone‐coated silver nanoparticles

Ribeiro,

Dantas,

Carvalho

et al. 2023

Coloration Technology

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The high demand for novel antimicrobial textiles by the medical, healthcare, hygiene, sportswear, personal protective equipment, and filtration sectors promoted the growth of functional textiles. However, the efficacy of antimicrobial agents against different pathogens is a considerable challenge due to the distinctive mechanisms of action and resistance. The development of novel synergistic antimicrobial dyes may offer numerous opportunities to enhance antimicrobial effectiveness. In this work, a novel imidazole‐based azo dye with a p‐methoxyphenyl group in the N‐1 substituent of the imidazole ring (AzoIz‐a), and corresponding amidrazone precursor (AmIz‐a), were combined with polyvinylpyrrolidone‐coated silver nanoparticles (AgNPs). The molecules alone and combined with the AgNPs were characterized by ultraviolet spectrophotometry and zeta potential. Their synergistic effect was assessed against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. The results were compared with other previously reported imidazole‐based azo dye and precursor, containing a methyl group in the imidazole ring (AmIz‐b and AzoIz‐b). The results showed interesting antimicrobial properties of the novel AzoIz‐a molecules when combined with a very small concentration of AgNPs. The combination showed an additive effect for S. aureus and a synergistic effect for E. coli and P. aeruginosa. Considering the synergistic results, the effective concentration of the AzoIz‐a decreased from >128 μg.mL‐1 to 16‐32 μg.mL‐1 by the addition of a small concentration of AgNPs (0.6‐1.3 μg.mL‐1), which showed comparable results with the AzoIz‐b molecule. Thus, the application of these conjugates in textiles may lead to highly colored materials with remarkable antibacterial properties, which worth to be further explored.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

Synergistic anti‐bacterial activity of imidazole‐based azo dyes with polyvinylpyrrolidone‐coated silver nanoparticles

Ribeiro,

Dantas,

Carvalho

et al. 2023

Coloration Technology

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show abstract

“…[26][27][28] Protein FTIR spectra are composed of a series of amide absorption bands, which are referred to as amide A, amide I, amide II, and amide III bands. [29][30][31] FTIR has potential in protein conformation research.…”

Section: Introductionmentioning

confidence: 99%

Second-Order Derivation Fourier Transform Infrared Spectral Analysis of Regenerated Wool Keratin Structural Changes

Jiang

Wang

et al. 2022

AATCC Journal of Research

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Keratin is a natural biopolymer with excellent biocompatibility and biodegradability properties. It is widely used in biomaterial construction. The secondary structure of keratin is essential in its applications. This structure is associated with its regeneration. In this study, the structure of regenerated keratin from wool was analyzed using the amide I, II, and III bands from second-order derivation Fourier transform infrared spectroscopy. The results showed that the regenerated wool keratin retained its molecular backbone with the cleavage of disulfide bonds. The amide I and II bands indicated that the content ratio of α-helix to non-α-helix structure was less in the regenerated keratin than that of raw wool. The amide III band confirmed the contents of α-helix/β-sheet/β-turn/random coil for raw wool (35%/31%/22%/13%) and regenerated keratin (26%/35%/23%/15%).

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Microwave-assisted sustainable exploration of cocklebur leaves (Xanthium strumarium L.) as a novel source of distinct yellow natural colorant for dyeing cotton fabric

Hussaan

Raza

Habib

et al. 2023

Environ Sci Pollut Res

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Investigation of Antibacterial Effect of Hypericum perforatum L. on Woolen Fabrics

Cited by 15 publications

References 18 publications

Synergistic anti‐bacterial activity of imidazole‐based azo dyes with polyvinylpyrrolidone‐coated silver nanoparticles

Synergistic anti‐bacterial activity of imidazole‐based azo dyes with polyvinylpyrrolidone‐coated silver nanoparticles

Second-Order Derivation Fourier Transform Infrared Spectral Analysis of Regenerated Wool Keratin Structural Changes

Microwave-assisted sustainable exploration of cocklebur leaves (Xanthium strumarium L.) as a novel source of distinct yellow natural colorant for dyeing cotton fabric

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