Antimicrobial Efficacy of Low Concentration PVP-Silver Nanoparticles Deposited on DBD Plasma-Treated Polyamide 6,6 Fabric

Ribeiro, Ana Isabel; Senturk, Dilara; Silva, Késia Karina; Modić, Martina; Cvelbar, Uroš; Dinescu, Gheorghe; Mitu, B.; Nikiforov, Anton; Leys, Christophe; Kuchakova, Irina; Vrieze, Mike De; Souto, A. Pedro; Zille, Andrea

doi:10.3390/coatings9090581

Cited by 25 publications

(19 citation statements)

References 44 publications

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“…The main peak at 285.0 eV was attributed to C-C and C-H bonds. The peak assigned to C-N and O=C-N bonds emerged at 286.2 eV and 287.8 eV, respectively [36]. The remaining DBD plasma-treated samples presented the same peaks and a new fourth peak at 289.1 eV attributed to O-C=O bonds, that prove the introduction of new oxygen components in the PA66 surface by DBD plasma treatment, which are typically associated to anhydride, carboxyl and ester groups [49].…”

Section: Xpsmentioning

confidence: 87%

“…In this work, diffuse reflectance can be influenced by two factors: the roughness surface of the samples and AgNPs content. DBD plasma treatment is a surface treatment able to modify the top-most layers of textile surfaces, increasing the surface roughness without altering the bulk material, which decreases the reflectance values and also improves the mass transfer properties [35,36]. Additionally, the AgNPs on the fabric samples are able to absorb light in the visible spectra.…”

Section: Reflectancementioning

confidence: 99%

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Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

et al. 2020

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Polyvinylpyrrolidone-coated silver nanoparticles (PVP-AgNPs) dispersed in ethanol, water and water/alginate were used to functionalize untreated and dielectric barrier discharge (DBD) plasma-treated polyamide 6,6 fabric (PA66). The PVP-AgNPs dispersions were deposited onto PA66 by spray and exhaustion methods. The exhaustion method showed a higher amount of deposited AgNPs. Water and water-alginate dispersions presented similar results. Ethanol amphiphilic character showed more affinity to AgNPs and PA66 fabric, allowing better uniform surface distribution of nanoparticles. Antimicrobial effect in E. coli showed good results in all the samples obtained by exhaustion method but using spray method only the DBD plasma treated samples displayed antimicrobial activity (log reduction of 5). Despite the better distribution achieved using ethanol as a solvent, water dispersion samples with DBD plasma treatment displayed better antimicrobial activity against S. aureus bacteria in both exhaustion (log reduction of 1.9) and spray (methods log reduction of 1.6) due to the different oxidation states of PA66 surface interacting with PVP-AgNPs, as demonstrated by X-ray Photoelectron Spectroscopy (XPS) analysis. Spray method using the water-suspended PVP-AgNPs onto DBD plasma-treated samples is much faster, less agglomerating and uses 10 times less PVP-AgNPs dispersion than the exhaustion method to obtain an antimicrobial effect in both S. aureus and E. coli.

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Section: Xpsmentioning

confidence: 87%

Section: Reflectancementioning

confidence: 99%

Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

et al. 2020

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“…The deconvolution spectra of C1s, N1s, O1s, and Ag3d highlighted the chemical modifications of PA66 surface due to DBD plasma treatment and chitosan layers (Tables 2 and 3). The C1s envelopes of untreated samples presented the usual three peaks at 285.0, 286.3 and 287.9 eV attributed to C-C/C-H, C-N and O=C-N bonds, respectively [14]. DBD plasma-treated samples showed the same peaks and another new peak at 289.3 eV attributed to O-C=O bonds, evidencing the introduction of novel oxygen species by DBD plasma treatment [15].…”

Section: Xpsmentioning

confidence: 88%

DBD Plasma treatment and chitosan layers - A green method for stabilization of silver nanoparticles on polyamide 6,6

Ribeiro

Modić

Cvelbar

et al. 2020

Proceedings of the First International Conference on “Green” Polymer Materials 2020

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The addition of silver nanoparticles (AgNPs) to biomedical textiles can be of great interest to protect the materials against microorganisms and prevent their spread. However, the human and environmental over-exposure to AgNPs is leading to numerous concerns due to their toxicity. In this work, AgNPs were stabilized onto polyamide 6.6 fabrics (PA66) through atmospheric dielectric barrier discharge (DBD) plasma treatment and the use of chitosan (Ch) layers applied by spray. DBD plasma treatment revealed a crucial role in AgNPs adhesion (4.8 and 6.3 At%). A first layer of Ch decreased the AgNPs adhesion in both untreated and DBD plasma-treated samples but treated samples show higher concentration (1.7 and 4.1 At%). The antibacterial activity was evaluated against Staphylococcus aureus and Escherichia coli after 2 and 24 h, showing a superior action in all samples with DBD plasma treatment after 24 h. The Ch in the first layers of the composites delayed the antimicrobial action of the samples but it also may enhance antimicrobial action. The obtained coatings will allow the development of novel and safe wound dressings with improved AgNPs deposition, controlled ions released and consequently, manage the antimicrobial performance and minimize the AgNPs side effects.

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“…Deposition of silver nanoparticles on plasma-activated surface exhibited antimicrobial property [ 26 ]. Similarly, dielectric barrier discharge plasma-treated polyamide 6,6 fabric showed higher Ag NPs deposition [ 27 ].…”

Section: Active Antimicrobial Agentsmentioning

confidence: 99%

Antimicrobial textile: recent developments and functional perspective

2021

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Antimicrobial textiles are functionally active textiles, which may kill the microorganisms or inhibit their growth. The present article explores the applications of different synthetic and natural antimicrobial compounds used to prepare antimicrobial textiles. Different types of antimicrobial textiles including: antibacterial, antifungal and antiviral have also been discussed. Different strategies and methods used for the detection of a textile's antimicrobial properties against bacterial and fungal pathogens as well as viral particles have also been highlighted. These antimicrobial textiles are used in a variety of applications ranging from households to commercial including air filters, food packaging, health care, hygiene, medical, sportswear, storage, ventilation and water purification systems. Public awareness on antimicrobial textiles and growth in commercial opportunities has been observed during past few years. Not only antimicrobial properties, but its durability along with the color, prints and designing are also important for fashionable clothing; thus, many commercial brands are now focusing on such type of materials. Overall, this article summarizes the scientific aspect dealing with different fabrics including natural or synthetic antimicrobial agents along with their current functional perspective and future opportunities.

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Antimicrobial Efficacy of Low Concentration PVP-Silver Nanoparticles Deposited on DBD Plasma-Treated Polyamide 6,6 Fabric

Cited by 25 publications

References 44 publications

Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

DBD Plasma treatment and chitosan layers - A green method for stabilization of silver nanoparticles on polyamide 6,6

Antimicrobial textile: recent developments and functional perspective

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