Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam

Czel, Gy.; Vanyorek, László; Sycheva, Anna; Kerekes, F.; Szőri-Dorogházi, Emma; Janovszky, D.

doi:10.3144/expresspolymlett.2021.68

Cited by 7 publications

(3 citation statements)

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“…Antibacterial as one of the properties of radiation shielding composites functions especially of benefit in diagnostic medicine, which is because the radiation shield is not disposable [31,32]. Various studies on the antibacterial effect of Copper/PVC have reported that copper oxide can produce anti-bacterial properties even in less than 5% Wt [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

A comprehensive study of the antibacterial and shielding properties of micro and nano-EPVC lead-free shields

Ghasemi-Nejad¹,

Gholamzadeh²,

Adeli³

et al. 2022

Phys. Scr.

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Lead-composites products are usable materials for the personal protection of the patient from X-ray during radiation operations. Nevertheless, lead has high toxicity and environmental disadvantages. This research aims at the preparation of flexible, lead-free, and antibacterial composites for protection against X-ray radiation. At first, nanoparticles of molybdenum trioxide (MoO3), copper oxide (CuO), and tin (IV) oxide (SnO2) were synthesized with hydrothermal and sol-gel methods. Six types of composites containing the 50% Wt of various mixtures of nano and micro particles of MoO3, CuO, and SnO2 in the emulsion of polyvinylchloride were prepared. Then, the morphological characteristics and size distribution of the samples were determined by the dynamic light scattering (DLS) analysis, and the bond between the matrix and the filler was investigated by Fourier Transform Infrared Spectroscopy (FTIR). Also, the antibacterial effect of the composites and X-ray diffraction (XRD) of nanoparticles were studied. Furthermore, the X-ray attenuation coefficient was measured in 40, 80, and 120 kVp. Indeed, the mass attenuation coefficients and 0.25 mm lead equivalent thickness were calculated for all samples. The results indicated that the nanocomposites show better attenuation than the other composites in all the energies. The composites containing MoO3 and CuO also proved to have better mass attenuation coefficients than the others. Considering the equivalent thickness for 0.25mm of lead in high and low energy, the composites containing all the three metal oxides can be considered suitable for attenuation. Also, the composites containing CuO can provide antibacterial properties.

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Section: Introductionmentioning

confidence: 99%

A comprehensive study of the antibacterial and shielding properties of micro and nano-EPVC lead-free shields

Ghasemi-Nejad¹,

Gholamzadeh²,

Adeli³

et al. 2022

Phys. Scr.

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“…Regarding the NPs, Ag seems to be the primary choice for research in this area, either as metallic nanoparticles or as metal oxide NPs. The literature data present several examples of PU foams containing silver nanoparticles synthesized ex situ [9,10,13,21,27,28,[40][41][42][43][44][45][46][47][48][49][50][51][52][53]. Besides antimicrobial applications (including water disinfection), the developed PU foam composites were tested for use as sensors, in electromagnetic shielding [49] and in pollutant removal [50,53].…”

Section: Incorporation Of Metal-based Nanomaterials Into Pu Foamsmentioning

confidence: 99%

Metal and Metal Oxide Nanoparticle Incorporation in Polyurethane Foams: A Solution for Future Antimicrobial Materials?

Fierascu,

Lungulescu,

Fierascu

et al. 2023

Polymers

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With the technological developments witnessed in recent decades, nanotechnology and nanomaterials have found uses in several common applications and products we encounter daily. On the other hand, polyurethane (PU) foams represent an extremely versatile material, being widely recognized for their extensive application possibilities and possessing a multitude of fundamental attributes that enhance their broad usability across various application fields. By combining the versatility of PU with the antimicrobial properties of nanoparticles, this emerging field holds promise for addressing the urgent need for effective antimicrobial materials in various applications. In this comprehensive review, we explore the synthesis methods, properties and applications of these nanocomposite materials, shedding light on their potential role in safeguarding public health and environmental sustainability. The main focus is on PU foams containing metal and metal oxide nanoparticles, but a brief presentation of the progress documented in the last few years regarding other antimicrobial nanomaterials incorporated into such foams is also given within this review in order to obtain a larger image of the possibilities to develop improved PU foams.

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“…Okuyama et al [70] introduced a new method for obtaining antibacterial flexible polyurethane foam with Ag ion-charged synthetic zeolite. Czel et al [71] presented instead new method for the synthesis of the open-cell soft polyurethane foam with silver nanoparticles on the surface of ultrafine grain natural zeolite particles as fillers. Presented research confirmed the polyurethane matrix with the nano-silver particles having a positive biocide effect.…”

Section: Polyurethane Foams Reinforced With Syzygium Aromaticum Fillermentioning

confidence: 99%

Natural Additives Improving Polyurethane Antimicrobial Activity

Sienkiewicz

Członka

2022

Polymers

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In recent years, there has been a growing interest in using polymers with antibacterial and antifungal properties; therefore, the present review is focused on the effect of natural compounds on the antibacterial and antifungal properties of polyurethane (PUR). This topic is important because materials and objects made with this polymer can be used as antibacterial and antifungal ones in places where hygiene and sterile conditions are particularly required (e.g., in healthcare, construction industries, cosmetology, pharmacology, or food industries) and thus can become another possibility in comparison to commonly used disinfectants, which mostly show high toxicity to the environment and the human health. The review presents the possibilities of using natural extracts as antibacterial, antifungal, and antiviral additives, which, in contrast to the currently used antibiotics, have a much wider effect. Antibiotics fight bacterial infections by killing bacteria (bactericidal effect) or slowing and stopping their growth (bacteriostatic effect) and effect on different kinds of fungi, but they do not fight viruses; therefore, compounds of natural origin can find wide use as biocidal substances. Fungi grow in almost any environment, and they reproduce easily in dirt and wet spaces; thus, the development of antifungal PUR foams is focused on avoiding fungal infections and inhibiting growth. Polymers are susceptible to microorganism adhesion and, consequently, are treated and modified to inhibit fungal and bacterial growth. The ability of micro-organisms to grow on polyurethanes can cause human health problems during the use and storage of polymers, making it necessary to use additives that eliminate bacteria, viruses, and fungi.

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Antimicrobial effect of silver nanoparticles plated natural zeolite in polyurethane foam

Cited by 7 publications

References 0 publications

A comprehensive study of the antibacterial and shielding properties of micro and nano-EPVC lead-free shields

A comprehensive study of the antibacterial and shielding properties of micro and nano-EPVC lead-free shields

Metal and Metal Oxide Nanoparticle Incorporation in Polyurethane Foams: A Solution for Future Antimicrobial Materials?

Natural Additives Improving Polyurethane Antimicrobial Activity

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