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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Gut & Microbiome Marine & Wildlife Remediation Sign in to save

Biofilm-Colonized versus Virgin Black Microplastics to Accelerate the Photodegradation of Tetracycline in Aquatic Environments: Analysis of Underneath Mechanisms

Environmental Science & Technology 2023 56 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Xue Zhang, Xuetao Guo Xue Zhang, Rui Ding, Rui Ding, Xuetao Guo Rui Ding, Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Xue Zhang, Xuetao Guo Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Yankai Dong, Xuetao Guo Zhuozhi Ouyang, Zhuozhi Ouyang, Xue Zhang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Xuetao Guo Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Zhuozhi Ouyang, Xuetao Guo Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Rui Ding, Yankai Dong, Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Lingyan Zhu, Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Lingyan Zhu, Lingyan Zhu, Xuetao Guo Lingyan Zhu, Zhuozhi Ouyang, Xuetao Guo Zhuozhi Ouyang, Lingyan Zhu, Xuetao Guo Zhuozhi Ouyang, Lingyan Zhu, Zhuozhi Ouyang, Rui Ding, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Lingyan Zhu, Lingyan Zhu, Lingyan Zhu, Lingyan Zhu, Lingyan Zhu, Lingyan Zhu, Lingyan Zhu, Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Rui Ding, Xuetao Guo Xuetao Guo Lingyan Zhu, Xuetao Guo Xuetao Guo Xuetao Guo Lingyan Zhu, Xuetao Guo Xuetao Guo Lingyan Zhu, Xuetao Guo Lingyan Zhu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Lingyan Zhu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Zhuozhi Ouyang, Zhuozhi Ouyang, Xuetao Guo Lingyan Zhu, Xuetao Guo Lingyan Zhu, Lingyan Zhu, Zhuozhi Ouyang, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Lingyan Zhu, Lingyan Zhu, Lingyan Zhu, Xuetao Guo Xuetao Guo Lingyan Zhu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Lingyan Zhu, Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Xuetao Guo Lingyan Zhu, Xuetao Guo Xuetao Guo Lingyan Zhu, Xuetao Guo

Summary

Researchers found that biofilm-colonized tire wear particles accelerated the photodegradation of tetracycline in aquatic environments compared to virgin particles, revealing how microbial biofilms on microplastics can alter contaminant fate.

Polymers
rubber

Tire wear particles (TWPs) exposed to the aquatic environment are rapidly colonized by microorganisms and provide unique substrates for biofilm formation, which potentially serve as vectors for tetracycline (TC) to influence their behaviors and potential risks. To date, the photodegradation capacity of TWPs on contaminants due to biofilm formation has not been quantified. To accomplish this, we examined the ability of virgin TWPs (V-TWPs) and biofilm-developed TWPs (Bio-TWPs) to photodegrade TC when exposed to simulated sunlight irradiation. V-TWPs and Bio-TWPs accelerated the photodegradation of TC, with rates (<i>k</i><sub>obs</sub>) of 0.0232 ± 0.0014 and 0.0152 ± 0.0010 h<sup>-1</sup>, respectively (<i>k</i><sub>obs</sub> increased by 2.5-3.7 times compared to that for only TC solution). An important factor of increased TC photodegradation behavior was identified and linked to the changed reactive oxygen species (ROS) of different TWPs. The V-TWPs were exposed to light for 48 h, resulting in more ROS for attacking TC, with hydroxyl radicals (<sup>•</sup>OH) and superoxide anions (O<sub>2</sub><sup>•-</sup>) playing a dominant role in TC photodegradation measured using scavenger/probe chemicals. This was primarily due to the greater photosensitization effects and higher electron-transfer capacity of V-TWPs in comparison to Bio-TWPs. In addition, this study first sheds light on the unique effect and intrinsic mechanism of the crucial role of Bio-TWPs in TC photodegradation, enhancing our holistic understanding of the environmental behavior of TWPs and the associated contaminants.

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