相关实验视频

Updated: Apr 13, 2026

Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue

Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue

Published on: June 18, 2014

在海藻中潜在有毒元素的纳米尺度分布由同步 X 射线光揭示

Antón Vázquez-Arias¹, M Teresa Boquete¹, Beatriz Martín-Jouve²

¹CRETUS Institute, Ecology Area, Department of Functional Biology, Faculty of Biology, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain.

Journal of hazardous materials

|November 10, 2024

概括

像Fucus vesiculosus这样的海藻在特定的细胞部分积累了潜在的有毒元素 (PTEs). 同步射线X射线光揭示了PTE缩在细胞壁或体中,有助于海藻排毒.

科学领域:

海洋生物学海洋生物学
环境科学环境科学
生物地质化学生物地质化学

背景情况:

潜在有毒元素 (PTEs) 影响沿海生态系统.
海藻在近海环境中至关重要,已知会积累PTE.
在海藻中PTE积累的机制和亚细胞位置尚不清楚.

研究的目的:

为了研究PTE在Fucus vesiculosus中的亚细胞分布.
阐明特定有机体在PTE封存和排毒中的作用.
了解沿海环境中海藻和PTE之间的相互作用.

主要方法:

使用基于同步光子的X射线光 (S-XRF) 显微镜.
在Fucus vesiculosus中以纳米分辨率绘制了元素分布图.
分析了各种PTE的亚细胞局部.

主要成果:

对于不同的PTE,观察到不同的亚细胞积累模式.
在细胞壁中发现 (Ba) 和 (U).
(Co), (Ni),铜 (Cu) 和 (Zn) 都集中在物理体中.

结论:

囊虫使用特定的亚细胞策略来调节PTE吸收并最大限度地减少毒性.
物理体在隔离双价PTE方面发挥着重要作用,可能用于细胞内功能.
S-XRF提供了前所未有的细节海藻元素映射,推进了对PTE积累机制的研究.

关键词:

福克斯 (Fucus vesiculosus) 是一种有气质的植物.重金属是一种重金属.海洋污染海洋污染一个私人企业的PTE.这是XRFXRF.

更多相关视频

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

Cell Culture on Silicon Nitride Membranes and Cryopreparation for Synchrotron X-ray Fluorescence Nano-analysis

Cell Culture on Silicon Nitride Membranes and Cryopreparation for Synchrotron X-ray Fluorescence Nano-analysis

Published on: December 10, 2019

相关概念视频

The Periodic Table and Organismal Elements

The Periodic Table and Organismal Elements

Elements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally occurring, and only a few of them are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.
Periodic Table Provides Information...