A5019264666- Nanoparticles: synthesis and applications
- Microplastics and Plastic Pollution
- Mercury impact and mitigation studies
- Recycling and Waste Management Techniques
- Environmental Toxicology and Ecotoxicology
- Heavy Metal Exposure and Toxicity
- Effects and risks of endocrine disrupting chemicals
- Heavy metals in environment
- Archaeology and ancient environmental studies
- Graphene and Nanomaterials Applications
- Law and Political Science
- Electrochemical Analysis and Applications
- Public Administration and Political Analysis
- Cultural Heritage Materials Analysis
- Gold and Silver Nanoparticles Synthesis and Applications
- Aquaculture disease management and microbiota
- Advanced Nanomaterials in Catalysis
- Advanced NMR Techniques and Applications
- Seaweed-derived Bioactive Compounds
- biodegradable polymer synthesis and properties
- Paleopathology and ancient diseases
- Algal biology and biofuel production
- Selenium in Biological Systems
- Sustainable Supply Chain Management
- Aquaculture Nutrition and Growth
University of Plymouth
2018-2024
Asahi Kasei (Germany)
1964
CTS Corporation (Czechia)
1964
V.F. Corporation (United States)
1964
Saint-Gobain (France)
1964
China National Chemical Corporation (China)
1964
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
1964
Fish are widely reported to ingest microplastics with low levels accumulating in the tissues, but owing analytical constraints, much less is known about potential accumulation of nanoplastics via gut. Recently, labelling plastics inorganic metals (e.g., palladium) has allowed measurements nanoplastic uptake. The aim current study was quantitatively assess uptake by fish gut using palladium-doped (with a mean hydrodynamic radius 202 ± 7 nm). By an ex vivo sac exposure system, we show that 4 h...
The ingestion of nanoplastics (NPs) by fish has led to concerns regarding health and food chain transfer, but analytical constraints have hindered quantitative data collection on their uptake depuration. We used palladium-doped polystyrene (PS-Pd NPs, ~200 nm) track particle fate in rainbow trout (Oncorhynchus mykiss) during a week-long dietary exposure subsequent 7-day depuration period control diet (no added PS-Pd NPs). At Day 3 7 the exposure, after depuration, mid intestine, hind liver,...
Despite the diverse structures and functions of gut barrier in animal kingdom, some common features lumen chemistry control behaviour engineered nanomaterials, with potentially novel uptake pathways invertebrates.
Overall, fish showed more Ag accumulation from AgNO<sub>3</sub> and NP exposures compared to the Ag<sub>2</sub>S treatment.
A strong alkali extraction technique and suitable single particle ICP-MS method is described for the routine quantifying of number concentration, size mass concentration silver nanomaterials in fish tissue.
Zinc (Zn) is an essential metal present in numerous enzymes throughout the body, playing a vital role animal and human health. However, increasing use of zinc oxide nanomaterials (ZnONPs) diverse range products has raised concerns regarding their potential impacts on health environment. Despite these concerns, toxicity ZnONP exposure remain poorly understood. To help address this knowledge gap, we have developed highly sensitive oxidative stress (OS) biosensor zebrafish capable detecting...
The uptake of engineered nanomaterials (ENMs) by the gut fishes is poorly understood.
Abstract Over recent decades, there has been a dramatic increase in the manufacture of engineered nanomaterials, which inevitably led to their environmental release. Zinc oxide (ZnO) is among more abundant nanomaterial manufactured due its advantageous properties, used for piezoelectric, semiconducting, and antibacterial purposes. Plastic waste ubiquitous may break down or delaminate into smaller microplastics, leaving open question whether these small polymers alter fate ZnO through...
The fate of engineered nanomaterials in ecosystems is unclear. An aquatic stream mesocosm explored the and bioaccumulation silver sulfide nanoparticles (Ag2S NPs) compared to nitrate (AgNO3). aims were determine total Ag water, sediment biota, evaluate bioavailable fractions using a serial extraction method. water column from nominal daily dose 10 μg L-1 for AgNO3 or Ag2S NP treatments reached plateau around 13 12 L-1, respectively, by end study. Similarly, both Ag-treatments ~380 kg-1, with...
This meta-analysis identifies linkages between the tiers in bioaccumulation testing strategy.
To date, much effort has been placed on quantifying plastic pollution and understanding its negative environmental effects, arguably to the detriment of research evaluation potential interventions. This led piecemeal progress in interventions reduce pollution, which do not correspond pace emissions. For substances that are used a global scale identified as hazardous, there is need act before irreversible damage done. example, history dichlorodiphenyltrichloethane's (DDT) use demonstrated...
Following exposure to a diet containing control (no added Ag), AgNO<sub>3</sub>, Ag NPs or Ag<sub>2</sub>S NPs, Ag-containing particles were found in organs of all treatments, with the highest concentrations following AgNO<sub>3</sub> NP.
Assessing the dietary accumulation of nanoplastics in animals following very-low exposure concentrations is restricted due to analytical limitations. This study adapted a method for synthesising semi-stable 14C-PS NPs (through styrene polymerisation) small volumes deployment environmental studies. The was developed with non-labelled material where final polystyrene product had primary particle size 35 ± 8 nm (as measured by transmission electron microscopy). then applied 14C-labelled produce...
How to use chemical triggers and invertebrate tests in the lower tiers of a bioaccumulation testing strategy.
Diet is an important exposure pathway of engineered nanomaterials (ENMs) in fish, but the long duration of<italic>in vivo</italic>toxicity tests a barrier to hazard assessment.