A5075607445- Nanoparticles: synthesis and applications
- Microplastics and Plastic Pollution
- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Air Quality and Health Impacts
- Mercury impact and mitigation studies
- Environmental Toxicology and Ecotoxicology
- Water Quality and Pollution Assessment
- Particle Dynamics in Fluid Flows
- Gold and Silver Nanoparticles Synthesis and Applications
- Environmental remediation with nanomaterials
- Recycling and Waste Management Techniques
- TiO2 Photocatalysis and Solar Cells
- Electrochemical Analysis and Applications
- Heavy metals in environment
- Advanced Nanomaterials in Catalysis
- Ocean Acidification Effects and Responses
- Isotope Analysis in Ecology
- Iron oxide chemistry and applications
- Healthcare and Environmental Waste Management
- Graphene and Nanomaterials Applications
- Urban Stormwater Management Solutions
- Marine Bivalve and Aquaculture Studies
- Soil and Unsaturated Flow
- Electrokinetic Soil Remediation Techniques
University of Gothenburg
2013-2024
Instituto de Investigacións Mariñas
2020-2021
Norwegian University of Life Sciences
2017-2018
There can be a large variation in the measured diameter of nanoparticles depending on which method is used. In this work, we have strived to accurately determine mean particle 30–40 nm colloidal silica particles by using six different techniques. A quantitative agreement between size distributions was obtained scanning electron microscopy (SEM), and electrospray-scanning mobility sizer (ES-SMPS). However, transmission gave distribution shifted smaller sizes. After confirming that...
Heteroaggregation of engineered nanoparticles with suspended particulate matter in theory and practice: a roadmap for understanding determining attachment efficiencies.
Environmental context. Manufactured and unintentionally produced nanoparticles have been of environmental concern owing to potential harm humans ecosystems, but very little is known the actual concentrations these limitations available methods. In order understand both adverse effects underlying natural processes, improved measurement techniques are needed. Here, we explore feasibility a novel minimum perturbation method that relates diffusive movement in light field their size...
Raphidocelis subcapitata is a freshwater algae species that constitutes the basis of many aquatic trophic chains. In this study, R. was used as model to investigate kinetics uptake and elimination silver nanoparticles (AgNP) in comparison nitrate (AgNO3) with particular focus on Ag sized-fractions solution. AgNP study were provided suspension 1 mg Ag/l, an initial size 3–8 nm coated alkane material. Algae exposed for 48 h both AgNO3 sampled at different time points determine their internal...
Wetland mesocosms retained nanoplastics. Nanoplastics where taken up by freshwater invertebrates and macrophytes mainly ended in the sediments of water compartment.
Effects of pH, three natural macromolecules and mono- divalent electrolytes on the stability titania nanoparticles.
Analysis of the availability and suitability methods needed to comply with new legal requirements nanomaterials.
Abstract Silver nanoparticles (AgNPs) are widely used worldwide, most likely leading to their release into the environment and a subsequent increase of environmental concentrations. Studies deleterious effects on organisms is crucial understand impacts. The freshwater snail Physa acuta was chosen evaluate potential AgNPs counterpart AgNO 3 , through water‐only exposures. toxicity greatly influenced by medium composition. Thus, 2 media were tested: artificial pond water (APW) modified APW...
International regulation of the emission acidic sulphur and nitrogen oxides from commercial shipping has focused on risks to human health, with little attention paid consequences for marine environment. The introduction stricter regulations in northern Europe led substantial investment scrubbers that absorb a counterflow seawater. This paper examines smokestack scrubber release Baltic Sea according range scenarios coming decades. While is projected become major source strong acid deposition...
Abstract Using Caenorhabditis elegans as a model organism, we addressed the potential linkage among toxicity of NM300K Ag nanoparticles (AgNPs), their particle size distribution, and presence dissolved in test media. Of 3 endpoints assessed (growth, fertility, reproduction), reproduction was most sensitive, with 50% effect concentration (EC50) ranging from 0.26 to 0.84 mg L −1 0.08 0.11 for AgNO , respectively. Silver uptake by C. similar both forms Ag, whereas bioaccumulation higher...
Coastal seas and oceans receive engineered nanoparticles that are released from nano-enabled consumer industrial products incidental formed as byproducts of combustion friction. The marine environment is often perceived a rapid sink for particles, because the high salinity promoting attachment between particles producing heavy agglomerates sediment on seafloor. In this work effect seasonal production extracellular polymeric substances (EPS) particle stability tested using seawater collected...
Engineered nanoparticles released into the environment may interact with natural organic matter (NOM). Surface complexation affects surface potential, which in turn lead to aggregation of particles. Aggregation synthetic TiO2 (anatase) aqueous suspension was investigated at pH 2.8 as a function time presence various molecules and Suwannee River fulvic acid (SRFA), using dynamic light scattering (DLS) high-resolution transmission electron microscopy (TEM). Results showed that average...
TNB molecules exhibiting eco-corona on the surface of carboxylated polystyrene nano-plastic in aquatic environment.
Abstract. The speciation of dissolved iron (DFe) in the ocean is widely assumed to consist almost exclusively Fe(III)-ligand complexes. Yet most aqueous environments a poorly defined fraction DFe also exists as Fe(II), which uncertain. Here we deploy flow injection analysis measure situ Fe(II) concentrations during series mesocosm/microcosm/multistressor experiments coastal addition decay rate this when moved into dark. During five Svalbard and Patagonia, where (0.2 µm) Fe were quantified...