Preparation and Performance of Ag&lt;sup&gt;+&lt;/sup&gt;-Zn&lt;sup&gt;2+&lt;/sup&gt;-Zeolite Antimicrobial and Antibacterial Plastic

Xu, Xia; Ding, Hao; Wang, Bai Kun

doi:10.4028/www.scientific.net/amr.96.151

Cited by 5 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zeolites have been mentioned in several scientific reports to be utilized as favorable substrates for loading metallic ions such as silver, copper, or zinc. For instance, Xu et al 20 reported the preparation of zeolite particles charged with Ag + and Zn 2+ ions, and the addition of these particles to polyethylene through melt mixing. It has been observed that the presence of 6 wt.…”

Section: Introductionmentioning

confidence: 99%

Effects of zeolite loaded with silver, copper, or zinc ions on antimicrobial properties of the ethylene‐vinyl acetate copolymer

Nekooei‐Fard,

Jahanmardi,

Fazaeli

et al. 2023

Polymers for Advanced Techs

View full text Add to dashboard Cite

The improvement of antimicrobial activity of ethylene‐vinyl acetate (EVA) resin is of significant importance from the hygienic point of view. Hence, the present work aimed to improve antimicrobial performance of the polymer with the aid of a novel, effective and low‐cost additive. Accordingly, the effects of incorporating Mobil‐twenty‐two zeolite loaded with silver, copper and zinc salts to EVA on antimicrobial activity of the polymer was investigated in this study. The used zeolite was hydrothermally synthesized and doped with silver, copper, or zinc nitrates. The loaded zeolite particles were added to EVA through melt mixing. The prepared composite samples were then compression molded to obtain thin films with a thickness of about 0.1 mm. X‐ray diffraction experiments and scanning electron microscopy revealed successful synthesis of Mobil‐twenty‐two zeolite and its metal‐salt loading. Moreover, favorable distribution of the loaded zeolite in the polymer matrix was proved by scanning electron microscopy images. Also, stress–strain test unveiled that the addition of the zeolite particles enhances Young's modulus and tensile strength of the polymer while decreases its elongation at break. In addition, among the studied samples, the one containing 2 wt.% of silver‐loaded zeolite showed the highest Young's modulus of 105 ± 4.7 MPa. however, its modulus was only about 2% higher than that of the sample containing 2 wt.% of copper/zinc‐doped zeolite. Moreover, the two mentioned samples showed the highest elongation at break among the samples containing 2 wt.% of the loaded zeolites. Besides, the lowest observed elongation at break was 491% ± 16.2 belonging to the composite sample containing 2 wt.% of copper‐loaded zeolite. Furthermore, the film samples containing either of the loaded zeolite particles exhibited antimicrobial activity against Escherichia coli, Staphylococcus aureus, and Candida albicans, with maximum bacterial and fungal inhibitions of about 56% and 54% in the case of the film samples containing 2 wt.% of silver‐ and copper/zinc‐doped zeolite, respectively. Overall, it was concluded that copper and/or zinc‐loaded zeolites, the effects of which is comparable to that of silver‐loaded zeolite, have the potential for application as low cost additives to induce antimicrobial activity to EVA, while maintaining its beneficial mechanical properties.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of zeolite loaded with silver, copper, or zinc ions on antimicrobial properties of the ethylene‐vinyl acetate copolymer

Nekooei‐Fard,

Jahanmardi,

Fazaeli

et al. 2023

Polymers for Advanced Techs

View full text Add to dashboard Cite

show abstract

“…The antibacterial activity of several metals (Fe, Zn, Mn, Co, Cu, Ni, V, and Mo) and their ions has been well investigated (Xu et al 2010). Inefficiency, toxicity, or cost concerns mean that only some of these elements can viably be used in industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Study of the antimicrobial and antifouling properties of different oxide surfaces

Blel

Limousy

Dutournié

et al. 2016

Environ Sci Pollut Res

View full text Add to dashboard Cite

Membrane separation processes find applications in an array of fields as they use far less energy and chemical agents than competing processes. However, a major drawback of membrane technology is that biofilm formation alters membrane performances. Preventing biofilm formation is thus a pivotal challenge for larger-scale development of membrane processes. Here, we studied the comparative antibacterial activities of different inorganic membranes (ceramic and zeolite-coated ceramic with or without copper exchange) using several bacterial strains (Escherichia coli, Staphylococcus aureus, and Bacillus subtilis). In static conditions, alumina plates coated with Cu-exchanged zeolite showed significant bactericidal activity. In dynamic mode (circulation of a contaminated nutrient medium), there was no observable bacterial adhesion at the surface of the Cu-exchanged material. These results confirm the antifouling properties of the Cu-mordenite layer due to both the increased hydrophilicity and antibacterial properties of the active layer.Tests performed with tubular filtration membranes (without copper exchange) showed a significant decline in membrane hydraulic properties during filtration of culture media containing bacteria, whereas copper-exchanged membranes showed no decline in hydraulic permeability. Filtration tests performed with concentrated culture media containing spores of B. subtilis led to a significant decrease in membrane hydraulic permeabilities (but less so with Cu-exchanged membranes). The surfaces showed less effective global antifouling properties during the filtration of a concentrated culture medium due to competition between bacterial growth and the bactericidal effect of copper. Analyses of copper leached in solution show that after a conditioning step, the amount of copper released is negligible.

show abstract

Zeolite-supported silver as antimicrobial agents

Dutta

Wang

2019

Coordination Chemistry Reviews

102

View full text Add to dashboard Cite

Preparation and Performance of Ag<sup>+</sup>-Zn<sup>2+</sup>-Zeolite Antimicrobial and Antibacterial Plastic

Cited by 5 publications

References 5 publications

Effects of zeolite loaded with silver, copper, or zinc ions on antimicrobial properties of the ethylene‐vinyl acetate copolymer

Effects of zeolite loaded with silver, copper, or zinc ions on antimicrobial properties of the ethylene‐vinyl acetate copolymer

Study of the antimicrobial and antifouling properties of different oxide surfaces

Zeolite-supported silver as antimicrobial agents

Contact Info

Product

Resources

About