相关实验视频

Updated: Jan 7, 2026

Generation of Electronic Cigarette Aerosol by a Third-Generation Machine-Vaping Device: Application to Toxicological Studies

Generation of Electronic Cigarette Aerosol by a Third-Generation Machine-Vaping Device: Application to Toxicological Studies

Published on: August 25, 2018

空气中的PET纳米塑料改变了烟草的化学风险

Miao-Miao Tan¹, Xiao-Dong Sun¹, Yue Wang¹

¹Shandong Key Laboratory of Synergistic Control of Complex Multi-Media Pollution, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, Shandong, People's Republic of China.

Proceedings of the National Academy of Sciences of the United States of America

|December 18, 2025

概括

大气中的微纳米塑料 (MNP) 通过叶子进入植物,改变尼古丁的产生. 这种塑料污染对农业和人类健康构成风险.

科学领域:

环境科学环境科学
植物生物学植物生物学
毒理学毒理学毒理学

背景情况:

大气中的微纳米塑料 (MNP) 是普遍存在的环境污染物.
植物可以通过叶子途径吸收MNP,从而导致组织积累.
人们还没有完全理解MNP对植物生物化学的影响.

研究的目的:

研究聚乙烯二甲 (PET) 纳米塑料对植物生理学的影响.
为了确定叶子MNP暴露是否改变植物内源生物化学途径.
评估MNP污染对农业和人类健康的潜在风险.

主要方法:

植物 *Nicotiana benthamiana* 通过叶子应用暴露于PET纳米塑料.
对MNP积累植物组织的分析.
尼古丁异构体的量化和植物生长的评估.

主要成果:

叶片PET纳米塑料的暴露导致了植物组织中MNP的积累.
尼古丁生物合成发生了改变,更强大的 (S) -尼古丁同位素显著增加.
这些生化变化发生在没有观察到的生长抑制的情况下.

结论:

植物作为大气MNP进入陆地生态系统和潜在的食物链的通道.
植物生化中的MNP诱导的变化对农业可持续性构成了一种新的重大风险.
这项研究突出了MNP污染植物性消费品对人类健康的前所未有的风险.

关键词:

尼科蒂亚娜·本塔米亚娜 (Nicotiana benthamiana) 是一种植物.尼古丁的胆性尼古丁的胆性叶子中的纳米塑料暴露.

更多相关视频

Development of a Preclinical Inhalation Model to Test Vaporized Cannabis Distillates

Development of a Preclinical Inhalation Model to Test Vaporized Cannabis Distillates

Published on: May 30, 2025

A New Portable In Vitro Exposure Cassette for Aerosol Sampling

A New Portable In Vitro Exposure Cassette for Aerosol Sampling

Published on: February 22, 2019

相关概念视频

Types of Toxins

Types of Toxins

Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...