Microplastic Exposure Assessment in Aquatic Environments: Learning from Similarities and Differences to Engineered Nanoparticles

2017 ◽  
Vol 51 (5) ◽  
pp. 2499-2507 ◽  
Author(s):  
Thorsten Hüffer ◽  
Antonia Praetorius ◽  
Stephan Wagner ◽  
Frank von der Kammer ◽  
Thilo Hofmann
Keyword(s):  
Exposure Assessment ◽  
Engineered Nanoparticles ◽  
Aquatic Environments ◽  
Similarities And Differences

scholarly journals Emission and fate modelling framework for engineered nanoparticles in urban aquatic systems at high spatial and temporal resolution

2018 ◽  
Vol 5 (2) ◽  
pp. 533-543 ◽  
Author(s):  
Prado Domercq ◽  
Antonia Praetorius ◽  
Alistair B. A. Boxall
Keyword(s):  
Exposure Assessment ◽  
Temporal Resolution ◽  
Engineered Nanoparticles ◽  
Aquatic Systems ◽  
Urban Systems ◽  
Modelling Framework ◽  
Fate Modelling

The combination of emission and fate modelling improves the exposure assessment of engineered nanoparticles in complex urban systems.

scholarly journals A network perspective reveals decreasing material diversity in studies on nanoparticle interactions with dissolved organic matter

2017 ◽  
Vol 114 (10) ◽  
pp. E1756-E1765 ◽  
Author(s):  
Nicole Sani-Kast ◽  
Jérôme Labille ◽  
Patrick Ollivier ◽  
Danielle Slomberg ◽  
Konrad Hungerbühler ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Engineered Nanoparticles ◽  
Experimental Results ◽  
Aquatic Environments ◽  
Particle Coating ◽  
Nanoparticle Interactions ◽  
Aliphatic Carbon ◽  
Extensive Body ◽  
Micrometer Scale

Dissolved organic matter (DOM) strongly influences the properties and fate of engineered nanoparticles (ENPs) in aquatic environments. There is an extensive body of experiments on interactions between DOM and ENPs and also larger particles. [We denote particles on the nano- and micrometer scale as particulate matter (PM).] However, the experimental results are very heterogeneous, and a general mechanistic understanding of DOM–PM interactions is still missing. In this situation, recent reviews have called to expand the range of DOM and ENPs studied. Therefore, our work focuses on the diversity of the DOM and PM types investigated. Because the experimental results reported in the literature are highly disparate and difficult to structure, a new format of organizing, visualizing, and interpreting the results is needed. To this end, we perform a network analysis of 951 experimental results on DOM–PM interactions, which enabled us to analyze and quantify the diversity of the materials investigated. The diversity of the DOM–PM combinations studied has mostly been decreasing over the last 25 y, which is driven by an increasing focus on several frequently investigated materials, such as DOM isolated from fresh water, DOM in whole-water samples, and TiO2and silver PM. Furthermore, there is an underrepresentation of studies into the effect of particle coating on PM–DOM interactions. Finally, it is of great importance that the properties of DOM used in experiments with PM, in particular the molecular weight and the content of aromatic and aliphatic carbon, are reported more comprehensively and systematically.

scholarly journals The effects of phosphorus limitation on carbon metabolism in diatoms

2017 ◽  
Vol 372 (1728) ◽  
pp. 20160406 ◽  
Author(s):  
Tore Brembu ◽  
Alice Mühlroth ◽  
Leila Alipanah ◽  
Atle M. Bones
Keyword(s):  
Cell Growth ◽  
Nucleic Acids ◽  
Carbon Metabolism ◽  
Current Knowledge ◽  
Essential Element ◽  
Phosphorus Limitation ◽  
Aquatic Environments ◽  
Diverse Range ◽  
Bioavailable Phosphorus ◽  
Similarities And Differences

Phosphorus is an essential element for life, serving as an integral component of nucleic acids, lipids and a diverse range of other metabolites. Concentrations of bioavailable phosphorus are low in many aquatic environments. Microalgae, including diatoms, apply physiological and molecular strategies such as phosphorus scavenging or recycling as well as adjusting cell growth in order to adapt to limiting phosphorus concentrations. Such strategies also involve adjustments of the carbon metabolism. Here, we review the effect of phosphorus limitation on carbon metabolism in diatoms. Two transcriptome studies are analysed in detail, supplemented by other transcriptome, proteome and metabolite data, to gain an overview of different pathways and their responses. Phosphorus, nitrogen and silicon limitation responses are compared, and similarities and differences discussed. We use the current knowledge to propose a suggestive model for the carbon flow in phosphorus-replete and phosphorus-limited diatom cells. This article is part of the themed issue ‘The peculiar carbon metabolism in diatoms’.

Detection of engineered nanoparticles in aquatic environments: current status and challenges in enrichment, separation, and analysis

2019 ◽  
Vol 6 (3) ◽  
pp. 709-735 ◽  
Author(s):  
Ming Zhang ◽  
Junhan Yang ◽  
Zhongxia Cai ◽  
Yudong Feng ◽  
Yafeng Wang ◽  
...  
Keyword(s):  
Engineered Nanoparticles ◽  
Current Status ◽  
Aquatic Environments

The development of enrichment–separation–analysis technologies is the cornerstone of accurately detecting, effectively monitoring, and controlling ENPs in aquatic environments.

scholarly journals Strategies for determining heteroaggregation attachment efficiencies of engineered nanoparticles in aquatic environments

2020 ◽  
Vol 7 (2) ◽  
pp. 351-367 ◽  
Author(s):  
Antonia Praetorius ◽  
Elena Badetti ◽  
Andrea Brunelli ◽  
Arnaud Clavier ◽  
Julián Alberto Gallego-Urrea ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Suspended Particulate Matter ◽  
Engineered Nanoparticles ◽  
Theory And Practice ◽  
Aquatic Environments ◽  
Suspended Particulate

Heteroaggregation of engineered nanoparticles with suspended particulate matter in theory and practice: a roadmap for understanding and determining attachment efficiencies.

scholarly journals Behavior and Potential Impacts of Metal-Based Engineered Nanoparticles in Aquatic Environments

Nanomaterials ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 21 ◽  
Author(s):  
Cheng Peng ◽  
Wen Zhang ◽  
Haiping Gao ◽  
Yang Li ◽  
Xin Tong ◽  
...  
Keyword(s):  
Engineered Nanoparticles ◽  
Aquatic Environments
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