Silver nanoparticles in natural zeolites incorporated into commercial coating: antibacterial study

Torres-Flores, E.I.; Flores-López, N. S.; Martínez-Núñez, C.E.; Tánori-Córdova, Judith; Flores-Acosta, M.; Cortez-Valadez, M.

doi:10.1007/s00339-020-04227-5

Cited by 15 publications

(5 citation statements)

References 53 publications

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“…The spectrum of Ag/CBV-600 showed three characteristic bands at 213, 285, and 340 nm associated with Ag + ions and ionic and metallic clusters (Figure (b)). Generally, the bands between 200 and 300 nm are attributed to isolated Ag + , Ag n δ+ , and Ag m clusters in the zeolite structure. − The absorption band at 213 nm was linked with the charge transfer of Ag + ions ([Kr]4d 10 -[Kr]4d 9 5s 1 ), which replaced the H + ions in the zeolite framework. − Two absorption bands at 285 and 340 nm with low intensity were related to ionic (Ag m δ+ , 3 < m < 7) and metallic (Ag m , m ≥ 8) clusters with a limited number of atoms, respectively. − Similar results are reported in ref for silver exchanged with natural zeolite (clinoptilolite and barrerite) showing silver ions and cluster species mainly.…”

Section: Resultsmentioning

confidence: 99%

“… 42 − 45 The absorption band at 213 nm was linked with the charge transfer of Ag + ions ([Kr]4d 10 -[Kr]4d 9 5s 1 ), which replaced the H + ions in the zeolite framework. 46 − 48 Two absorption bands at 285 and 340 nm with low intensity were related to ionic (Ag m δ+ , 3 < m < 7) and metallic (Ag m , m ≥ 8) clusters with a limited number of atoms, respectively. 49 − 52 Similar results are reported in ref ( 53 ) for silver exchanged with natural zeolite (clinoptilolite and barrerite) showing silver ions and cluster species mainly.…”

Section: Resultsmentioning

confidence: 99%

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Antimicrobial and Virus Adsorption Properties of Y-Zeolite Exchanged with Silver and Zinc Cations

Sánchez-López,

Hernández-Hernández,

Fuentes Moyado

et al. 2024

ACS Omega

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The antimicrobial activity of silver and zinc exchanged cations in Y-zeolite (Ag/CBV-600, Zn/CBV-600) is evaluated against Staphylococcus aureus (gram (+)) and Escherichia coli (gram (−)) bacteria along with their adsorption capacity for viruses: brome mosaic virus (BMV), cowpea chlorotic mottle virus (CCMV), and the bacteriophage MS2. The physicochemical properties of synthesized nanomaterials are characterized by inductively coupled plasma optical emission spectroscopy (ICP-OES), UV−Vis spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM). According to the obtained results, the main species associated with the exchanged ions are Ag + and Zn 2+ cations with the concentration of around 1 atomic %. The incorporation of cations does not modify the Y-zeolite framework. The Ag/CBV-600 and Zn/CBV-600 materials show an inactivation of 90% for both gram (+) and gram (−) bacteria at 16 h at a relatively low concentration of nanomaterial (0.5 mg/mL). Moreover, the samples present good adsorption capacity for BMV, CCMV, and MS2 viruses showing adsorption higher than 40% after 2 h of interaction with the viruses. These prominent results allow the further usage of nanomaterials as an effective remedy to inhibit and reduce the spread of viruses such as SARS-CoV-2 or other gram (+) or gram (−) bacteria.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Antimicrobial and Virus Adsorption Properties of Y-Zeolite Exchanged with Silver and Zinc Cations

Sánchez-López,

Hernández-Hernández,

Fuentes Moyado

et al. 2024

ACS Omega

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“…Silver nanoparticles in natural zeolites (chabazite, clinoptilolite, and clinoptilolite-stilbite,) have been used for enhancing the antibacterial properties of commercial coatings, and have shown antibacterial activities against E. coli ATCC 25922, K. pneumoniae ATCC 25955 and K. pneumoniae ESBL + bacteria (Torres-Flores et al, 2021). The highest antibacterial activity of natural zeolite supported with Ag, Cu 2 O, and ZnO was determined for the silver sample toward Salmonella typhimurium in contact with the zeolite in distilled water (Martínez-Vieyrа et al, 2021).…”

Section: Antibacterial Propertiesmentioning

confidence: 99%

Natural and Modified Zeolite Clinoptilolite with Antimicrobial Properties: a Review

Nikolov,

Dobreva,

Danova

et al. 2023

AMB

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The present review summarizes research on the antimicrobial properties of modified natural zeo¬lite clinoptilolite. The modification of the clinoptilolites is based on its ion exchange features with silver, copper, zinc, or other ions in order to obtain antimicrobial properties. The review includes recent data on pretreatment and preconditioning to increase the effectiveness of ion exchange procedures and obtain a functionalized zeolite. The review covers antibacterial, antifungal, and antiviral activity materials based on natural zeolite clinoptilolite.

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“…A bacterial suspension (100 μL) was added to the surface of the PDIC-AC and incubated at 37 °C for 18 h. After that, the coatings were rinsed with a sterile saline solution (5 mL). The resulting solution was applied to nutrient agar, and after 18 h of incubation at 37 °C, the colonies were counted to evaluate the antibacterial effects of the PDIC and PDIC-AC. , …”

Section: Experimental Sectionmentioning

confidence: 99%

Preparation and Properties of Environmentally Friendly Marine Antifouling Coatings Based on a Collaborative Strategy

et al. 2022

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Long-term and green marine antifouling coatings are an important means to prolong the service life of ships and other marine instruments and equipment. To accomplish this, we prepared three new green and high-efficiency antifouling coatings containing phthalimide derivatives inspired by capsaicin (PDIC-AC) by using a collaborative strategy that incorporates self-polishing, fouling repelling, and antifouling properties. Static simulation tests confirmed that the zinc acrylate resin of the PDIC-AC has excellent self-polishing properties due to changes in the roughness, surface free energy, and mass loss. Antifouling tests demonstrated that both PDIC and PDIC-AC possess efficient antibacterial and anti-algal effects. Moreover, marine field tests showed that the PDIC-AC are highly antifouling for at least 9 months, and their antifouling effect is similar to that of an antifouling coating with chlorothalonil (CT-AC). The collaborative strategy in this study can be used to research and develop long-term environmentally friendly antifouling coatings.

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Silver nanoparticles in natural zeolites incorporated into commercial coating: antibacterial study

Cited by 15 publications

References 53 publications

Antimicrobial and Virus Adsorption Properties of Y-Zeolite Exchanged with Silver and Zinc Cations

Antimicrobial and Virus Adsorption Properties of Y-Zeolite Exchanged with Silver and Zinc Cations

Natural and Modified Zeolite Clinoptilolite with Antimicrobial Properties: a Review

Preparation and Properties of Environmentally Friendly Marine Antifouling Coatings Based on a Collaborative Strategy

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