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Tier 2
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Original research — experimental, observational, or case-control study. Direct primary evidence.
Marine & Wildlife
Remediation
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Microplastic aging alters the adsorption-desorption behaviors of sulfamethoxazole in marine animals: A study in simulated biological liquids
Marine Pollution Bulletin2023
27 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 45
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Yunxue Li,
Xianhua Liu
Bushra Maryam,
Bushra Maryam,
Xianhua Liu
Xiaochen Chen,
Xiaochen Chen,
Ping Zhang,
Xiaochen Chen,
Jiaxuan Li,
Yunxue Li,
Yunxue Li,
Xiaochen Chen,
Xianhua Liu
Xiaochen Chen,
Xianhua Liu
Yunxue Li,
Jiaxuan Li,
Yunxue Li,
Xianhua Liu
Yunxue Li,
Bushra Maryam,
Xianhua Liu
Bushra Maryam,
Bushra Maryam,
Xianhua Liu
Xianhua Liu
Ping Zhang,
Ping Zhang,
Xiaochen Chen,
Xianhua Liu
Ping Zhang,
Xiaochen Chen,
Xianhua Liu
Xianhua Liu
Yanping Zong,
Yanping Zong,
Yanping Zong,
Xianhua Liu
Xianhua Liu
Xianhua Liu
Bushra Maryam,
Bushra Maryam,
Xiaochen Chen,
Xianhua Liu
Ping Zhang,
Yanping Zong,
Yanping Zong,
Yanping Zong,
Jianbo Tu,
Xianhua Liu
Xianhua Liu
Xianhua Liu
Xianhua Liu
Bushra Maryam,
Xiaochen Chen,
Jianbo Tu,
Jianbo Tu,
Jianbo Tu,
Jianbo Tu,
Jianbo Tu,
Jianbo Tu,
Bushra Maryam,
Xianhua Liu
Bushra Maryam,
Xianhua Liu
Xianhua Liu
Xiaochen Chen,
Xianhua Liu
Xianhua Liu
Ping Zhang,
Ping Zhang,
Xianhua Liu
Ping Zhang,
Ping Zhang,
Ping Zhang,
Xianhua Liu
Xiaochen Chen,
Yanping Zong,
Xiaochen Chen,
Xianhua Liu
Xianhua Liu
Xiaochen Chen,
Xianhua Liu
Yanping Zong,
Jianbo Tu,
Jianbo Tu,
Xianhua Liu
Xianhua Liu
Xianhua Liu
Xianhua Liu
Xianhua Liu
Xianhua Liu
Yanping Zong,
Yanping Zong,
Xianhua Liu
Xianhua Liu
Yanping Zong,
Ping Zhang,
Yanping Zong,
Xianhua Liu
Xianhua Liu
Xianhua Liu
Ping Zhang,
Xianhua Liu
Xianhua Liu
Xianhua Liu
Xianhua Liu
Xianhua Liu
Xianhua Liu
Xianhua Liu
Summary
Researchers tested how UV aging of polyhydroxyalkanoate (PHA) and polyethylene (PE) microplastics affects their adsorption and desorption of the antibiotic sulfamethoxazole in simulated fish intestinal and mammalian stomach fluids. Aging increased adsorption capacity for sulfamethoxazole, while desorption in digestive fluids was higher for aged PHA than aged PE, with implications for antibiotic bioavailability in organisms that ingest microplastics.
Antibiotics and microplastics (MPs) coexisting as unique environmental contaminants may cause unintended environmental issues. In this study, the adsorption-desorption behaviors of sulfamethoxazole (SMX) on both original and UV-aged MPs were examined. Polyhydroxyalkanoates (PHA) and polyethylene (PE), which represent degradable and refractory MPs, respectively, were chosen as two distinct types of MPs. Furthermore, simulated fish intestinal fluids (SFIF) and simulated mammalian stomach fluids (SMGF) were employed to evaluate the desorption behaviors of SMX from aged MPs. Our findings demonstrate that UV-aging altered the polarity, hydrophilicity, and structure of the MPs. Aged MPs showed a higher adsorption capacity than the original MPs and they have a higher desorption capacity than original MPs in simulated body fluids. PE has a higher SMX desorption capacity in SFIF and the opposite happened in SMGF. Our results highlight the importance of considering the different adsorption-desorption behaviors of antibiotics on MPs when evaluating their environmental impact.