Silver ions and silver nanoparticles in zeolite A composites for antibacterial activity

Jiraroj, Duangkamon; Tungasmita, Sukkaneste; Tungasmita, Duangamol Nuntasri

doi:10.1016/j.powtec.2014.05.049

Cited by 75 publications

(56 citation statements)

References 33 publications

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“…Therefore, the further investigation is requiring for future investigators. The details procedure and mechanisms are already reported from some review of literatures [37][38][39]. ROS generation has been implicated in the toxic response in both prokaryotic and eukaryotic systems to NPs resulting cell damage [40][41][42][43][44][45].…”

Section: Antibacterial Activitiesmentioning

confidence: 99%

Thermal, structural, functional, optical and magnetic studies of pure and Ba doped CdO nanoparticles

Sivakumar

Arul

Soundhirarajan

et al. 2015

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Section: Antibacterial Activitiesmentioning

confidence: 99%

Thermal, structural, functional, optical and magnetic studies of pure and Ba doped CdO nanoparticles

Sivakumar

Arul

Soundhirarajan

et al. 2015

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…The composite NaA films had a very low (<3%) bactericidal activity against E. coli . In agreement, zeolite powders generally do not show strong bactericidal activity against Gram‐positive or Gram‐negative bacteria . A previous study of Ag‐NaA composite powders reported that pure NaA had a lower antibacterial activity than AgA against E .…”

Section: Resultsmentioning

confidence: 54%

“…A previous comparison of the Ag composite type with respect to the antibacterial activity revealed that the powder composites provided a better bactericidal activity against E. coli than S. aureus . In contrast, S. aureus were more susceptible than E. coli to the Ag composite films, suggesting that the Ag + ions in the composite film were not dispersed throughout the film and so fewer Ag particles could interact with the bacteria.…”

Section: Resultsmentioning

confidence: 99%

“…In addition to its antibacterial activity, the incorporation of Ag + within a NaA membrane can enhance the gas separation performance by adjusting the zeolite pore size . A previous study on the effect of the incorporation of Ag + particles on NaA with respect to the antibacterial activity revealed that the silver‐NaA (AgA) had the highest antibacterial efficiency against both E. coli and S. aureus , where the combination of Ag + and NaA in the PP film improved the antibacterial activity and gas permeation of these films.…”

Section: Introductionmentioning

confidence: 99%

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Zeolite A‐polypropylene and silver‐zeolite A‐polypropylene composite films for antibacterial and breathable applications

Jiraroj

Tungasmita

2017

J of Applied Polymer Sci

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Polypropylene (PP) composite films were successfully prepared using melt blending by directly mixing PP pellets with zeolite A or silver‐zeolite A powder and then blowing. All the prepared films were characterized in terms of their physical, mechanical, optical, and gas permeability properties. The structure of each composite film was similar to that of the pure PP film. The crystallinity and glossy quality of the composite films were increased by the addition of silver, zeolite, and maleic anhydride grafted PP (PP‐g‐MA). The composite PP film with zeolite A and PP‐g‐MA exhibited a level of oxygen and carbon dioxide permeation (6438 and 15,087 cc m−2 day−1 atm−1, respectively). Finally, all the films were evaluated for their antibacterial activity and fruit packaging applications. Silver‐zeolite A‐PP composite films exhibited a bactericidal activity of 79% against Staphylococcus aureus and 52% against Escherichia coli, while the zeolite A‐PP film could extend the shelf‐life of bananas for over a week. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45450.

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“…This includes clinically relevant parameters such as the minimum bactericidal concentration (MBC), the minimum inhibitory concentration (MIC), the median lethal dose (LD 50 ), the bactericidal action time of the nanomaterial, the effective concentration and the time of exposure for a given bacterial load. Also, it is important to determine its re-use capacity and its bactericidal/bacteriostatic effect [2,5,15–19]. To this end, it is also necessary to establish a systematic study of the antimicrobial properties of the nanomaterial taking into account aspects related to its stability, management and recovery, in order to prevent environmental impact.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Complete Antimicrobial Characterization of CEOBACTER, an Ag-Based Nanocomposite

et al. 2016

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The antimicrobial activity of silver nanoparticles (AgNPs) is currently used as an alternative disinfectant with diverse applications, ranging from decontamination of aquatic environments to disinfection of medical devices and instrumentation. However, incorporation of AgNPs to the environment causes collateral damage that should be avoided. In this work, a novel Ag-based nanocomposite (CEOBACTER) was successfully synthetized. It showed excellent antimicrobial properties without the spread of AgNPs into the environment. The complete CEOBACTER antimicrobial characterization protocol is presented herein. It is straightforward and reproducible and could be considered for the systematic characterization of antimicrobial nanomaterials. CEOBACTER showed minimal bactericidal concentration of 3 μg/ml, bactericidal action time of 2 hours and re-use capacity of at least five times against E. coli cultures. The bactericidal mechanism is the release of Ag ions. CEOBACTER displays potent bactericidal properties, long lifetime, high stability and re-use capacity, and it does not dissolve in the solution. These characteristics point to its potential use as a bactericidal agent for decontamination of aqueous environments.

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Silver ions and silver nanoparticles in zeolite A composites for antibacterial activity

Cited by 75 publications

References 33 publications

Thermal, structural, functional, optical and magnetic studies of pure and Ba doped CdO nanoparticles

Thermal, structural, functional, optical and magnetic studies of pure and Ba doped CdO nanoparticles

Zeolite A‐polypropylene and silver‐zeolite A‐polypropylene composite films for antibacterial and breathable applications

Synthesis and Complete Antimicrobial Characterization of CEOBACTER, an Ag-Based Nanocomposite

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