Silver nanoparticles deposited on a cotton fabric surface <i>via</i> an <i>in situ</i> method using reactive hyperbranched polymers and their antibacterial properties

Chen, Hongxia; Zhang, Guangyu; Zhang, Wei; Gao, Weidong

doi:10.1039/d3ra00989k

Cited by 7 publications

(3 citation statements)

References 36 publications

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“…The analysis reveals peaks at 285 (C 1s), 397 (N 1s), 533 (O 1s), 371 (Ag 3d), and 719 eV (Fe 2p) (Figure S10e). − In the C 1s spectrum, peaks of CC/C–C, C–N, and CO were found at 284.6, 285.6, and 288.8 eV, respectively (Figure S10a). The N 1s spectrum contains three peaks at 399.6.1, 401.6, and 406.6 eV, corresponding to N–CO, N–H, and pyridyl nitrogen (Figure S10b).…”

Section: Resultsmentioning

confidence: 99%

Enhancing Gel Strength and Catalytic Performance of a Nanocomposite Catalyst by Incorporating a Reinforcing Hydrogen-Bonding Component

Nautiyal,

Kyarikwal,

Munjal

et al. 2024

ACS Appl. Eng. Mater.

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The gelator molecule triethylammonium 5-(3,5-bis((1H-tetrazol-5-yl)carbamoyl)benzamido)tetrazol-1-ide (G7) has been studied in our previous work, where G7 formed an organogel, metallogels, and silver nanocomposite which was used as a catalyst for the reduction of nitroaromatics. During the catalytic study of the nanocomposite M 1 G7AgNPs, it was found that the recyclability of the catalyst decreases with the increasing number of catalytic cycles due to the aggregation of silver nanoparticles. From there, the motivation is to increase the strength of the gel network so that the synthesis of a more stabilized nanocomposite can be obtained. To increase the strength of organogel G7 and study the effect of this modification on the catalytic activity of its nanocomposite catalyst, a molecule with H-bonding donor and acceptor sites, N 2,N 4,N 6-tri(pyridin-2-yl)-1,3,5-triazine-2,4,6-triamine (TPTT), has been synthesized and characterized by spectroscopic techniques. TPTT (or T) and G7 formed a reinforced gel in a DMSO:H2O mixture and exhibited an effect of strong hydrogen bond formation on the rheological and catalytic properties of the organogel and metallogel of G7T. The combined gelator system fabricated three metallogels: M 1 G7T, M 2 G7T, and M 3 G7T (M1 = Fe(III), M2 = Cu(II), and M3 = Ag(I)). Among these, M 1 G7T has been used for the production and stability of silver nanoparticles and formed M 1 G7TAg nanocomposites. This dual metal system has been used as a catalyst to reduce nitro substituents, i.e. 4-nitrophenol, 4-nitroaniline, 2-amino-5-nitrobenzonitrile, etc., into their respective amine products. Here, during the reaction the substrate which contained adjacent nitrile and amine functional groups shows indazole formation, which is a very important part of organic transformations. The recyclability of the catalyst has been done with the conversion of 4-nitrophenol to 4-aminophenol and it was found that it can be unchanged even with five repeating reactions. The organogels and metallogels of the combined G7 and T molecule show enhancement in storage modulus from 586 to 3091 Pa, showing that after the combination of the T molecule with G7, a strong hydrogen-bond interaction increases; therefore, the strength of organogels and metallogels also increases. Additionally, M 1 G7TAg demonstrates the fabrication of metallogels using G7 and T, exhibiting thixotropic behavior that is validated by time oscillation sweep studies. Therefore, the work shows major changes in the rheological properties of G7T as compared to the G7 organogel. Due to increasing strength, the stabilization of silver nanoparticles inside the metallogel network (M 1 G7T) increases, increasing the recyclability of nanocomposite catalyst M 1 G7TAg.

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Section: Resultsmentioning

confidence: 99%

Enhancing Gel Strength and Catalytic Performance of a Nanocomposite Catalyst by Incorporating a Reinforcing Hydrogen-Bonding Component

Nautiyal,

Kyarikwal,

Munjal

et al. 2024

ACS Appl. Eng. Mater.

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“…[14][15][16] Chen et al coated silver nanoparticles on cotton fabric using hyperbranched polymers, achieving over 99.9 % bacterial reduction for E. coli and S. aureus. [17] Khattaf et al studied cotton fabrics treated with the combination of AgNPs and date seed extract (DSE) from P. dactylifera, finding that this mixture exhibited the highest antibacterial activity against various pathogens. [18] Furthermore, the photocatalyst titanium dioxide (TiO 2 ) is regarded as an appealing bactericide owing to its chemical stability, nontoxicity, affordability, and high photocatalytic efficacy.…”

Section: Introductionmentioning

confidence: 99%

“…Chen et al. coated silver nanoparticles on cotton fabric using hyperbranched polymers, achieving over 99.9 % bacterial reduction for E. coli and S. aureus [17] . Khattaf et al.…”

Section: Introductionmentioning

confidence: 99%

Advancements in Enhancing Antibacterial Properties of Cotton Fabric through Chitosan and Nanoparticles

Verma,

Ahuja,

Arora

2023

ChemistrySelect

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Over recent years, the garment industry has been actively seeking innovative solutions to address critical challenges in clothing production. One significant issue has been the susceptibility of hydrophilic cotton fabrics, commonly used in healthcare and sportswear, to bacterial growth, posing hygiene concerns. To deal with this, it becomes crucial for us to make durable cotton fabrics that can fight bacteria. This study explores the development of durable antibacterial cotton textiles by utilizing a range of antibacterial agents and mechanisms. Chitosan's properties, such as its ability to inhibit fungal growth, compatibility, non‐toxicity, bioactivity, and antimicrobial potential make it a promising candidate for the textile industry. Additionally, the incorporation of metal nanoparticles along with chitosan offers interesting potential, such as UV absorption, self‐cleaning capabilities, and antimicrobial activity. Therefore, research aimed at enhancing cotton fabric by harnessing the potential of chitosan and metal nanoparticles continues to attract significant attention in today's textile world. Cotton fabric modified by combining chitosan and nanoparticles exhibits high antimicrobial activity compared to fabric modified with either nanoparticles or chitosan alone. The implications of this study are far‐reaching with improvement in hygiene, comfort, and durability in a wide range of clothing applications, thus making a substantial contribution to the evolution of the textile industry.

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Wearability Analysis of Ag Nanoparticle-Loaded Cotton Fabric Modified by SPEEK/PVA Blend Polymer

Wang,

Jin,

Mai

et al. 2024

Fibers Polym

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Silver nanoparticles deposited on a cotton fabric surface via an in situ method using reactive hyperbranched polymers and their antibacterial properties

Abstract: In situ synthesis of Ag-NPs on EPDA-HBP-grafted cotton fabric.

Cited by 7 publications

References 36 publications

Enhancing Gel Strength and Catalytic Performance of a Nanocomposite Catalyst by Incorporating a Reinforcing Hydrogen-Bonding Component

Enhancing Gel Strength and Catalytic Performance of a Nanocomposite Catalyst by Incorporating a Reinforcing Hydrogen-Bonding Component

Advancements in Enhancing Antibacterial Properties of Cotton Fabric through Chitosan and Nanoparticles

Wearability Analysis of Ag Nanoparticle-Loaded Cotton Fabric Modified by SPEEK/PVA Blend Polymer

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