揭示不同聚烯塑料制品上的生物膜的特性:一次性口罩和外卖盒之间的比较
Hexinyue Huang1, Yanqi Shi1, Zhimin Gong1
1State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, People's Republic of China.
Journal of hazardous materials
|January 10, 2024
概括
与外卖盒相比,一次性口罩可以创建具有更高微生物生物质和独特碳代谢的生物膜. 塑料结构和生物膜组成的这种差异可能会带来明显的环境风险.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 材料科学 材料科学 材料科学
背景情况:
- COVID-19 流行病加剧了塑料污染,一次性口罩对环境污染作出了重大贡献.
- 生态系统中的塑料垃圾被微生物迅速殖民,形成改变生态影响的生物膜.
- 一次性口罩的独特无结构与平面塑料不同,可能会影响生物膜的形成和功能.
研究的目的:
- 研究塑料结构对生物膜殖民和功能的影响.
- 为了比较一次性口罩 (DM) 和外卖盒 (TB) 上的生物膜形成,两者均由聚乙烯制成.
- 了解不同类型的塑料上形成的生物膜对生态的影响.
主要方法:
- 一次性口罩 (DM) 和外卖盒 (TB) 的化,用于调节膜和生物膜的开发.
- 分析表面结构的变化,调节膜组成 (托类物质) 和微生物生物质.
- 微生物社区分析,包括功能基因预测和碳代谢能力评估.
- 部分最小平方回归与微生物殖民相关的表面结构.
主要成果:
- 一次性口罩的无结构被水和生物膜殖民改变了.
- 与外卖盒相比,一次性口罩在调节膜中表现出更高比例的托类物质.
- 一次性口罩上的生物膜显示微生物生物质和碳代谢能力明显高于外卖盒上的生物膜.
- 与应激耐受性,碳代谢和生物膜形成相关的特定功能微生物在一次性口罩上丰富.
- 在一次性口罩上微生物的选择性殖民与它们不均的表面结构有关.
结论:
- 塑料结构,特别是一次性口罩的非织造性质,显著影响了调节膜组成和随后的生物膜开发.
- 与外卖盒相比,一次性口罩支持更强大的生物膜形成,具有更高的微生物生物质和独特的代谢功能.
- 一次性口罩上的生物膜的独特特性表明,与其他塑料垃圾相比,生物膜可能存在不同的环境风险,因此需要进一步调查它们对生态的影响.
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