Effect of Selected Environmental Factors on the Microbicidal Effectiveness of Radiant Catalytic Ionization

Skowron, Krzysztof; Wałecka-Zacharska, Ewa; Grudlewska, Katarzyna; Kwiecińska-Piróg, Joanna; Wiktorczyk, Natalia; Kowalska, Maria; Paluszak, Zbigniew; Kosek-Paszkowska, Katarzyna; Brożek, Klaudia; Korkus, Jakub; Gospodarek‐Komkowska, Eugenia

doi:10.3389/fmicb.2019.03057

Cited by 6 publications

(13 citation statements)

References 32 publications

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“…Skowron et al [50], showed that the number of bacteria decreased with RCI exposure over time, which confirms previous studies. Skowron et al [50] showed that the reduction of S. aureus from a stainless steel surface after 20 min exposure to RCI was 5.20 log CFU cm −2 . At the same time, Skowron et al [50] found that S. aureus was the most resistant to RCI on the rubber surface.…”

Section: Discussionsupporting

confidence: 83%

“…In Skowron et al study [37], the exposure time was also 20 min. However, in another study, we evaluated different exposure times [50] for the effectiveness of RCI technology. Skowron et al [50], showed that the number of bacteria decreased with RCI exposure over time, which confirms previous studies.…”

Section: Discussionmentioning

confidence: 99%

“…However, in another study, we evaluated different exposure times [50] for the effectiveness of RCI technology. Skowron et al [50], showed that the number of bacteria decreased with RCI exposure over time, which confirms previous studies. Skowron et al [50] showed that the reduction of S. aureus from a stainless steel surface after 20 min exposure to RCI was 5.20 log CFU cm −2 .…”

Section: Discussionmentioning

confidence: 99%

“…Skowron et al [50] showed that the reduction of S. aureus from a stainless steel surface after 20 min exposure to RCI was 5.20 log CFU cm −2 . At the same time, Skowron et al [50] found that S. aureus was the most resistant to RCI on the rubber surface. Grinshpun et al [27] found that increasing the exposure time from 10 to 30 min increased the reduction in B. subtilis from 75 to 90%.…”

Section: Discussionmentioning

confidence: 99%

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Efficacy of Radiant Catalytic Ionization in Reduction of Enterococcus spp., Clostridioides difficile and Staphylococcus aureus in Indoor Air

et al. 2020

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(1) Background: An aerogenic way is one of main rout of spreading microorganisms (including antibiotic resistant), that cause healthcare-associated infections. The source of microorganisms in the air can be patients, personnel, visitors, outdoor air, hospital surfaces and equipment, and even sink drains. (2) Methods: The standardized suspensions (0.5 McFarland) of the examined strains (Enterococcus spp., Clostridioides difficile, Staphylococcus aureus) were nebulized in sterile chamber. Then the Induct 750 (ActivTek) device, generating RCI (radiant catalytic ionization) phenomenon, was used for 20 min. Next, the number of bacteria in the air was calculated using collision method. The percentage of reduction coefficient (R) was calculated. (3) Results: In case of enterococci, the R value was >90% and there are no statistically significant differences among tested strains. For C. difficile strains the R value range from 64–95%. The R value calculated for hypervirulent, antibiotic resistant CDI PCR 27 strain was statistically significantly lower than for other examined strains. For S. aureus non-MRSA the R value was 99.87% and for S. aurues MRSA the R value was 95.61%. (4) Conclusions: The obtained results indicate that the use of RCI may contribute to reducing the occurrence of dangerous pathogens in the air, and perhaps transmission and persistence in the hospital buildings environment.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Efficacy of Radiant Catalytic Ionization in Reduction of Enterococcus spp., Clostridioides difficile and Staphylococcus aureus in Indoor Air

et al. 2020

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“…Bacterial colony-forming unit (CFU) counts were obtained after plating serial logarithmic dilutions of mammary gland homogenates. The mammary gland homogenate supernatant from each sample was inoculated in a S. aureus chromogenic culture (Ao Bo Xing, Beijing, China) dish for bacterial culture, and the number of colonies in the culture dish was counted after 24 h, and transforming counts into base 10 logarithm (log 10 ) values ( 24 ). Bacterial genomic DNA was extracted and purified from the mammary gland homogenate, and specific PCR amplification and sequencing were performed for the specific Nuc gene of S. aureus to verify that the infecting bacteria were indeed bovine-associated S. aureus .…”

Section: Methodsmentioning

confidence: 99%

Directed Expression of Tracheal Antimicrobial Peptide as a Treatment for Bovine-Associated Staphylococcus Aureus-Induced Mastitis in Mice

Zhang

Chen

et al. 2021

Front. Vet. Sci.

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Bovine mastitis is perplexing the dairy industry since the initiation of intensive dairy farming, which has caused a reduction in the productivity of cows and an escalation in costs. The use of antibiotics causes a series of problems, especially the formation of bacterial antimicrobial resistance. However, there are limited antibiotic-free therapeutic strategies that can effectively relieve bacterial infection of bovine mammary glands. Hence, in this study, we constructed a mammary gland tissue-specific expression vector carrying the antimicrobial peptide of bovine-derived tracheal antimicrobial peptide (TAP) and evaluated it in both primary bovine mammary epithelial cells (pBMECs) and mice. The results showed that the vector driven by the β-lactoglobulin gene (BLG) promoter could efficiently direct the expression of TAP in pBMECs and the mammary gland tissue of mice. In addition, significant antibacterial effects were observed in both in vitro and in vivo experiments when introducing this vector to bovine-associated Staphylococcus aureus-treated pBMECs and mice, respectively. This study demonstrated that the mammary gland tissue-specific expression vector could be used to introduce antimicrobial peptide both in in vitro and in vivo and will provide a new therapeutic strategy in the treatment of bovine mastitis.

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Antimicrobial effect of radiant catalytic ionization

Skowron

Wiktorczyk-Kapischke

Grudelwska-Buda

et al. 2022

Letters in Applied Microbiology

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Effect of Selected Environmental Factors on the Microbicidal Effectiveness of Radiant Catalytic Ionization

Cited by 6 publications

References 32 publications

Efficacy of Radiant Catalytic Ionization in Reduction of Enterococcus spp., Clostridioides difficile and Staphylococcus aureus in Indoor Air

Efficacy of Radiant Catalytic Ionization in Reduction of Enterococcus spp., Clostridioides difficile and Staphylococcus aureus in Indoor Air

Directed Expression of Tracheal Antimicrobial Peptide as a Treatment for Bovine-Associated Staphylococcus Aureus-Induced Mastitis in Mice

Antimicrobial effect of radiant catalytic ionization

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