相关实验视频

Updated: Jun 7, 2025

In Situ Detection and Single Cell Quantification of Metal Oxide Nanoparticles Using Nuclear Microprobe Analysis

In Situ Detection and Single Cell Quantification of Metal Oxide Nanoparticles Using Nuclear Microprobe Analysis

Published on: February 3, 2018

金属基和聚合物基纳米颗粒的不同叶子到根的运动,热带转移和组织特异生物分布,当单独或混合存在时

Yingxin Chen¹, Erkai He², Willie J G M Peijnenburg^3,4

¹School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.

Environmental science & technology

|November 12, 2024

概括

对混合纳米颗粒 (NP) 的叶子暴露改变了卜和牛的植物吸收和热量转移效率. 在牛组织中观察到酸聚烯 (DPS) 的同时暴露风险和生物放大.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
纳米技术纳米技术

背景情况:

通过叶子吸收通过陆地食物链的纳米颗粒 (NP) 转移是鲜为人知的.
同污染和工厂转移显著影响NP环境风险.

研究的目的:

为了研究氧化物 (CeO2) NPs和脱聚烯 (DPS) 从卜植物到牛的热量转移,在单一和混合的叶子暴露下.
评估共污染对NP吸收,转移和生物放大在食物链中的影响.

主要方法:

卜被暴露在CeO2NP和DPS单剂和混合剂的叶子中.
食物转移效率 (TTF) 和同化效率是在牛中测量的,这些牛食用暴露的卜芽和根.
在植物和牛中使用适当的技术分析了NP度.

主要成果:

混合NP暴露增加了植物Ce吸收,但没有增加DPS吸收,但没有影响从芽到根转移.
在混合暴露下,食用卜芽的牛中,Ce和DPS的食物转移效率下降.
在暴露在NP混合物中的根食牛的消化腺和软组织中观察到DPS的生物放大.

结论:

对NP的同时暴露会改变它们在陆地食物链中的吸收和食用转移动态.
植物转移和共污染显著影响与纳米颗粒相关的环境风险.
了解复杂暴露场景中的NP行为对于准确的环境风险评估至关重要.

关键词:

这是一种CeO2纳米粒子.脱的聚乙烯脱的聚乙烯叶子暴露的叶子暴露.食物链中的食物链.获得奖杯的转移.

更多相关视频

Monitoring of Nanodrug Accumulation in Murine Breast Cancer Metastases

Monitoring of Nanodrug Accumulation in Murine Breast Cancer Metastases

Published on: August 23, 2024

Registered Bioimaging of Nanomaterials for Diagnostic and Therapeutic Monitoring

Registered Bioimaging of Nanomaterials for Diagnostic and Therapeutic Monitoring

Published on: December 9, 2010

相关概念视频

Drug Distribution: Tissue Binding

Drug Distribution: Tissue Binding

Upon entering the systemic circulation, drugs can distribute into the interstitial and intracellular fluid of various tissue cells. This distribution is facilitated by the binding of drugs to different cellular components within tissues, which may lead to drug accumulation in specific areas. Drugs bound to tissue components serve as reservoirs that release free drugs back into the system, prolonging the drug's overall action. However, this accumulation can also result in local toxicity.
For...

Tissue-Drug Binding: Localization of Drugs and its Significance

Tissue-Drug Binding: Localization of Drugs and its Significance

Body tissues, comprising approximately 40% of the body weight, are crucial in drug distribution and localization. These tissues can serve as drug storage sites, competing with plasma binding sites for drug molecules.
Drugs can bind to different tissue components, enhancing their distribution and localization. The factors influencing drug localization in tissues include the drug's lipophilicity, structural characteristics, tissue perfusion rate, and pH differences. These factors determine...