Zinc oxide nanoparticle-coated films: fabrication, characterization, and antibacterial properties

Jiang, Yunhong; O’Neill, Alex J.; Ding, Yulong

doi:10.1007/s11051-015-2993-6

Cited by 21 publications

(8 citation statements)

References 18 publications

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“…For instance, among the six Gram-negative bacteria tested, only S. sonnei showed the largest inhibition zone of about 11.3 ± 0.6 mm with ZnO nanoparticles measuring 148 nm in size (milled for 2 h) comparable with the results shown by erythromycin, used as a positive control. A similar inhibition in Gram-negative bacteria was previously obtained for ZNPs of average particle sizes ranging 600-30 nm [9], 90-200 nm [40], 80 nm [13], 12-212 nm [8], 130-50 nm [57], and 5-38 nm [7]. Nevertheless, since the synthesis process of ZNPs difers in these studies, slight diferences in the inhibition activity should be mentioned.…”

Section: Microorganism-znp Interaction Mechanismssupporting

confidence: 83%

HSBM-Produced Zinc Oxide Nanoparticles: Physical Properties and Evaluation of Their Antimicrobial Activity against Human Pathogens

et al. 2022

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This work examines the antibacterial and anticandidal activities of zinc oxide nanoparticles (ZNPs) synthesized by high-speed ball milling (HSBM), for short milling times: 0.5, 1, 1.5, and 2 h. First, ZNPs have been characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, and the Zetasizer analyzer. The HSBM results in semispherical ZNPs with some local agglomeration. We found that nanoparticles decrease in size continuously with milling time until they reach about 84% of their original size after only two hours; at 1000 rpm, HSBM reduces ZNP’s average size by 6 nm/min. As particle size decreases, the X-ray diffracted patterns become broader and less intense while confirming that no phase transformation has occurred, proving HSBM’s effectiveness in synthesizing nanoparticles on a large scale within a short period of time. According to FT-IR analysis, as material sizes change, the polarization charge of the ZNP surface changes as well, creating discrepancies in vibrational frequency, as demonstrated by the shifting of the IR spectra in the 300–600 cm−1 frequency band. Raman responses have also been proven to depend on the particle size. Using the Agar well diffusion method, eleven microorganisms have been tested for the antimicrobial activity of ZNPs. Among the six Gram-negative tested bacteria, S. sonnei showed the largest inhibition zone of about 11.3 ± 0.6 mm with ZNPs measuring 148 nm in size (milled for 2 h), followed by E. coli ATCC 25922. Accordingly, S. aureus was the most susceptible Gram-positive bacteria, with inhibition zone size gradually increasing from 11.8 ± 0.3 mm to 13.5 ± 0.5 mm with decreasing nanoparticle size from 767 to 148 nm, while S. aureus ATCC 25923 was resistant to both milled and unmilled samples. Similar results were seen with candida, all milled ZNPs inhibited C. albicans, followed by C. tropicalis, whereas C. knisei was resistant to all ZNP sizes. In light of microorganism-ZNP interaction mechanisms, the obtained results have been discussed in depth.

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Section: Microorganism-znp Interaction Mechanismssupporting

confidence: 83%

HSBM-Produced Zinc Oxide Nanoparticles: Physical Properties and Evaluation of Their Antimicrobial Activity against Human Pathogens

et al. 2022

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“…In this regard, Li et al () showed that S. aureus growth was affected significantly by ZnO‐nanocomposite films. In another study (Jiang, O'Neill, & Ding, ), active films coated with ZnO NPs exhibited antibacterial activity against both gram‐positive ( S. aureus ) and gram‐negative ( E. coli ) bacteria. Similarly, Shankar et al () showed that gelatin‐ZnO NPs films have profound antimicrobial activity against both gram‐positive ( L. monocytogenes ) and gram‐negative ( E. coli ) bacteria.…”

Section: Discussionmentioning

confidence: 97%

Antibacterial activity of agar‐based films containing nisin, cinnamon EO, and ZnO nanoparticles

Abdollahzadeh

Hosseini

Fooladi

2018

Journal of Food Safety

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The antibacterial activity of six essential oils (peppermint, chamomile, cumin, tarragon, dill, and cinnamon) was tested against gram-positive (Listeria monocytogenes and Staphylococcus aureus) and gramnegative (Escherichia coli and Pseudomonas aeruginosa) bacteria. The cinnamon EO was selected for the preparation of active films. Twenty-four active films were developed and tested against the foodborne pathogens. In the next study, antimicrobial films were prepared by incorporating nisin (100AU), cinnamon EO (0.6%), and ZnO NPs (10 mg/15 ml) into the agar-based film and tested against seven strains of L. monocytogenes. The antibacterial activity of the bio-nanocomposite was also examined on the population of pathogens which artificially are inoculated in-depth of minced fish over 12 days.Results showed that cinnamon (CEO) had the highest antimicrobial activity. The results revealed that the blend films with ZnO nanoparticles (NPs) 1 CEO were more effective against gram-positive bacteria than gram-negative bacteria. The strain-specific variation was noticeable for seven tested strains of L. monocytogenes. The films containing nisin and the combination of nisin with ZnO NPs and CEO significantly inhibited the growth of L. monocytogenes on the Tryptic soy agar-NaCl model (p < .05).The results revealed a negligible effect of the active film in minced fish. Practical applicationsThis study developed and utilized antimicrobial nanocomposite films for controlling foodborne pathogens. The antibacterial activity of the active films on the surface of a food model showed that combining ZnO NPs, CEO, and nisin into agar films is a promising method to enhance the food safety.

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“…Added the bacterial suspension 10 μL inoculated onto the entire surface of an agar. Each film sample was placed on the TSA surface [29]. The Petri dishes were incubated at 37 °C for 24 h and the clear zone were measured to determine the antibacterial activity.…”

Section: Methodsmentioning

confidence: 99%

Enhanced Antibacterial Activity of Poly (dimethylsiloxane) Membranes by Incorporating SiO2 Microspheres Generated Silver Nanoparticles

et al. 2019

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The nonspecific adsorption of proteins and bacteria on the surface of polydimethylsiloxane (PDMS) had been a serious concern in a wide range of applications, such as medical devices. In order to improve the anti-adhesive and antibacterial capability, bare silver nanoparticles (AgNPs, ~15 nm) were generated in-situ on their surface without extra reducing and stabilizing agents. The main reason for this was that the SiO2 microspheres that are covalent bonded to the bulked PDMS could not only generate AgNPs spontaneously but also insure that no AgNPs were released to the environment. Meanwhile, the thiol-group-functionalized SiO2 microspheres self-assembled on the surface of PDMS by thiol-vinyl click reaction without any impact on their biomedical applications. After the modification of SiO2 microspheres with AgNPs, the surface of PDMS showed a smaller water contact angle than before, and the adhesion and growth of E. coli and Bacillus subtilis were effectively inhibited. When the monolayer of SiO2 microspheres with AgNPs was assembled completely on the surface of PDMS, they present improved bacterial resistance performance (living bacteria, 0%). This approach offers an antibacterial and anti-adhesive surface bearing small and well-defined quantities of in-situ generated AgNPs, and it is a novel, green, simple, and low-cost technique to generate AgNPs on soft biomedical substrates.

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Zinc oxide nanoparticle-coated films: fabrication, characterization, and antibacterial properties

Cited by 21 publications

References 18 publications

HSBM-Produced Zinc Oxide Nanoparticles: Physical Properties and Evaluation of Their Antimicrobial Activity against Human Pathogens

HSBM-Produced Zinc Oxide Nanoparticles: Physical Properties and Evaluation of Their Antimicrobial Activity against Human Pathogens

Antibacterial activity of agar‐based films containing nisin, cinnamon EO, and ZnO nanoparticles

Enhanced Antibacterial Activity of Poly (dimethylsiloxane) Membranes by Incorporating SiO2 Microspheres Generated Silver Nanoparticles

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