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Original research — experimental, observational, or case-control study. Direct primary evidence.
Gut & Microbiome
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Secondary microplastics formation and colonized microorganisms on the surface of conventional and degradable plastic granules during long-term UV aging in various environmental media
Journal of Hazardous Materials2022
94 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 60
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Liu Gao,
Liu Gao,
Liu Gao,
Liu Gao,
Liu Gao,
Liu Gao,
Ruiqi Bao,
Ruiqi Bao,
Ruiqi Bao,
Ruiqi Bao,
Ruiqi Bao,
Licheng Peng
Yuanyuan Su,
Liu Gao,
Liu Gao,
Liu Gao,
Liu Gao,
Liu Gao,
Liu Gao,
Liu Gao,
Liu Gao,
Liu Gao,
Yuanyuan Su,
Yuanyuan Su,
Yuanyuan Su,
Yuanyuan Su,
Yuanyuan Su,
Liu Gao,
Liu Gao,
Liu Gao,
Jingrun Pu,
Yuanyuan Su,
Liu Gao,
Wei Chen,
Yuanyuan Su,
Yuanyuan Su,
Liu Gao,
Yuanyuan Su,
Yuanyuan Su,
Yuanyuan Su,
Yuanyuan Su,
Yuanyuan Su,
Licheng Peng
Licheng Peng
Licheng Peng
Licheng Peng
Licheng Peng
Licheng Peng
Licheng Peng
Licheng Peng
Licheng Peng
Yipeng Hou,
Zhiruo Cheng,
Zhiruo Cheng,
Zhiruo Cheng,
Jingrun Pu,
Liu Gao,
Liu Gao,
Yipeng Hou,
Zhiruo Cheng,
Zhiruo Cheng,
Zhiruo Cheng,
Yipeng Hou,
Liu Gao,
Chaolin Xie,
Licheng Peng
Yipeng Hou,
Liu Gao,
Yipeng Hou,
Yipeng Hou,
Yipeng Hou,
Yipeng Hou,
Licheng Peng
Licheng Peng
Chaolin Xie,
Licheng Peng
Yuanyuan Su,
Wei Chen,
Yuanyuan Su,
Wei Chen,
Licheng Peng
Chaolin Xie,
Wei Chen,
Ruiqi Bao,
Licheng Peng
Licheng Peng
Chaolin Xie,
Licheng Peng
Liu Gao,
Yuanyuan Su,
Liu Gao,
Liu Gao,
Ruiqi Bao,
Ruiqi Bao,
Licheng Peng
Licheng Peng
Liu Gao,
Liu Gao,
Liu Gao,
Licheng Peng
Jingrun Pu,
Wei Chen,
Wei Chen,
Wei Chen,
Licheng Peng
Jingrun Pu,
Licheng Peng
Wei Chen,
Liu Gao,
Yuanyuan Su,
Licheng Peng
Licheng Peng
Licheng Peng
Licheng Peng
Licheng Peng
Licheng Peng
Liu Gao,
Wei Chen,
Ruiqi Bao,
Ruiqi Bao,
Wei Chen,
Licheng Peng
Licheng Peng
Wei Chen,
Wei Chen,
Wei Chen,
Wei Chen,
Wei Chen,
Liu Gao,
Licheng Peng
Ruiqi Bao,
Licheng Peng
Liu Gao,
Ruiqi Bao,
Licheng Peng
Ruiqi Bao,
Ruiqi Bao,
Licheng Peng
Licheng Peng
Licheng Peng
Wei Chen,
Yuanyuan Su,
Wei Chen,
Yuanyuan Su,
Yuanyuan Su,
Ruiqi Bao,
Licheng Peng
Wei Chen,
Wei Chen,
Wei Chen,
Yuanyuan Su,
Wei Chen,
Licheng Peng
Licheng Peng
Licheng Peng
Licheng Peng
Wei Chen,
Licheng Peng
Summary
Researchers compared how biodegradable and conventional plastics generate secondary microplastics and develop bacterial biofilms during long-term UV aging. Biodegradable PBAT plastic produced significantly more secondary microplastic fragments than conventional PVC after 90 days of weathering. The study also found that aged microplastics harbored genes related to human pathogens, raising concerns that biodegradable plastics may actually pose greater ecological risks than expected.
Recently, biodegradable plastics (BPs) as an alternative of conventional plastics have been widely advocated and applied. However, there is still a large research gap between the formation of secondary microplastics (MPs) and colonized microorganisms on their surface under long-term aging in different environments. In this study, the generation of secondary MPs and the formation of surface biofilms on the micro-sized (3-5 mm) biodegradable plastic poly (butyleneadipate-co-terephthalate) (BP-PBAT) and conventional plastic polyvinyl chloride (CP-PVC) under long-term UV aging was investigated. The results showed that hundreds and even thousands of MPs (185.53 ± 85.73 items/g - 1473.27 ± 143.67 items/g) were generated by BP-PBAT and CP-PVC after aged for 90 days, and the abundance of MPs produced by BP-PBAT was significantly higher than that of CP-PVC. Moreover, the α diversities and detected OTU number of biofilm communities formed on MPs increased with MPs-aging. The genes related to the formation of biofilms was significantly expressed on aged MPs and the genes related to human pathogens and diseases were also detected in enriching on MPs surface. Overall, BPs may lead to greater ecological risks as it releases thousands of secondary MPs after being aged, and their environmental behavior needs to be further explored.