Abstract
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.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
