A novel three-dimensional galvanic cell enhanced Fe2+/persulfate system: High efficiency, mechanism and damaging effect of antibiotic resistant E. coli and genes

“…The ATR-FTIR spectra of the treated supernatant showed obvious absorption peaks at ∼3401, 1633, 1354, 1061, and 835 cm –1 corresponding to the treated ARG-containing DNA. The strong absorption peaks at ∼3401, 1633, and 1061 cm –1 represented vibrations of N–H in the ARG-containing DNA bases, CO in guanine and thymine, and νs(PO 2 ), respectively. − Therefore, the ARG-containing DNA was leaked to the supernatant and then destroyed during the plasma treatment.…”

Section: Resultsmentioning

confidence: 99%

Insights into DNA Structures during Antibiotic-Resistance Gene Elimination by Mesoporous Plasma

Song

Wang

et al. 2021

ACS EST Water

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The prevalence of various antibiotic-resistant bacteria (ARB) and antibiotic-resistance genes (ARGs) is becoming a global environmental problem. Removal of multiple resistant Escherichia coli strains, carrying a gentamicin resistance gene (aac(3)-II), an amoxicillin-resistance gene (blaTEM-1), tetracycline-resistance genes (tetC and tetW), and integron gene intI1, was investigated using a mesoporous plasma. The experimental results showed that the elimination efficiencies of integron intI1, aac(3)-II, blaTEM-1, tetW, and tetC reached 5.46, 5.71, 5.19, 2.88, and 2.28 log within 10 min of plasma oxidation, respectively. These elimination performances were positively related to the plasma intensity, duration time, and airflow rate. The cell membrane structures were significantly destroyed by the plasma oxidation, accompanied by leakage of ARG-containing DNA. Most of the ARG-containing DNA (more than 96%) was effectively damaged and decomposed to cytosine, guanine, adenine, and thymine. The present research revealed the removal behaviors of ARGs by plasma oxidation and provided an alternative to eliminate ARGs in an aqueous system.

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Bacteria inactivation by sulfate radical: progress and non-negligible disinfection by-products

Zhou

Ren

et al. 2022

Front. Environ. Sci. Eng.

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Sulfate radicals have been increasingly used for the pathogen inactivation due to their strong redox ability and high selectivity for electron-rich species in the last decade. The application of sulfate radicals in water disinfection has become a very promising technology. However, there is currently a lack of reviews of sulfate radicals inactivated pathogenic microorganisms. At the same time, less attention has been paid to disinfection by-products produced by the use of sulfate radicals to inactivate microorganisms. This paper begins with a brief overview of sulfate radicals’ properties. Then, the progress in water disinfection by sulfate radicals is summarized. The mechanism and inactivation kinetics of inactivating microorganisms are briefly described. After that, the disinfection by-products produced by reactions of sulfate radicals with chlorine, bromine, iodide ions and organic halogens in water are also discussed. In response to these possible challenges, this article concludes with some specific solutions and future research directions.

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A novel three-dimensional galvanic cell enhanced Fe2+/persulfate system: High efficiency, mechanism and damaging effect of antibiotic resistant E. coli and genes

Cited by 27 publications

References 65 publications

Preparation of a high-efficiency low-toxicity CdS/C₆₀ bactericide and investigation of the mechanism

Preparation of a high-efficiency low-toxicity CdS/C₆₀ bactericide and investigation of the mechanism

Insights into DNA Structures during Antibiotic-Resistance Gene Elimination by Mesoporous Plasma

Bacteria inactivation by sulfate radical: progress and non-negligible disinfection by-products

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A novel three-dimensional galvanic cell enhanced Fe2+/persulfate system: High efficiency, mechanism and damaging effect of antibiotic resistant E. coli and genes

Cited by 27 publications

References 65 publications

Preparation of a high-efficiency low-toxicity CdS/C60 bactericide and investigation of the mechanism

Preparation of a high-efficiency low-toxicity CdS/C60 bactericide and investigation of the mechanism

Insights into DNA Structures during Antibiotic-Resistance Gene Elimination by Mesoporous Plasma

Bacteria inactivation by sulfate radical: progress and non-negligible disinfection by-products

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Product

Resources

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Preparation of a high-efficiency low-toxicity CdS/C₆₀ bactericide and investigation of the mechanism

Preparation of a high-efficiency low-toxicity CdS/C₆₀ bactericide and investigation of the mechanism