Nathan Bossa

Journal Article Journal of hazardous materials · November 2025 Plastics degrade in the environment through complex physical and chemical processes. Here, we demonstrate that nanoplastics (NPs) can be directly released from macroplastics, and not solely generated via intermediate microplastic (MP) fragmentation, thereb ... Full text Cite

Regulatory challenges and risk assessment of graphene-enabled products: insights for safe commercialisation in Europe

Journal Article 2d Materials · October 1, 2025 The development of graphene-enabled products in a variety of industrial sectors like medical devices, textiles, aerospace, or food contact materials has raised significant regulatory challenges with regards to risk assessment. The work performed under the ... Full text Cite

Leveraging nanoparticle environmental health and safety research in the study of micro- and nano-plastics.

Journal Article NanoImpact · October 2024 Lessons learned, methodologies, and application of tools that have been developed within the context of research on the environmental impacts, health, and safety of nanomaterials (nano-EHS) provide a solid foundation for research on nano/microplastics. In ... Full text Cite

Indoor paint life cycle particle release: Safer-by-design products and the importance of choosing the right formula.

Journal Article The Science of the total environment · October 2024 In 2020, the European Commission published a regulation that states all producers of white paints containing titanium dioxide (TiO2) must provide a warning label on their products. Exposure during the production and application of products conta ... Full text Cite

Quantifying mechanical abrasion of AgNP nanocomposites: influence of AgNP content on abrasion products and rate of microplastic production

Journal Article Environmental Science Nano · June 7, 2024 Nanomaterials are used in polymer composites to enhance plastic products' properties. Silver nanoparticles (AgNPs) are added to composites for their antimicrobial and fungicidal properties. Polyethylene terephthalate glycol polymer (PETG) AgNP composite te ... Full text Cite

Everything falls apart: How solids degrade and release nanomaterials, composite fragments, and microplastics.

Journal Article NanoImpact · April 2024 To ensure the safe use of materials, one must assess the identity and quantity of exposure. Solid materials, such as plastics, metals, coatings and cements, degrade to some extent during their life cycle, and releases can occur during manufacturing, use an ... Full text Cite

The role of FAIR nanosafety data and nanoinformatics in achieving the UN sustainable development goals: the NanoCommons experience

Journal Article Rsc Sustainability · February 27, 2024 The increasing focus on open and FAIR (Findable, Accessible, Interoperable and Re-useable) data is driving a step-change in how research communities and governments think about data and knowledge, and the potential for re-use of data. It has long been reco ... Full text Cite

Metadata stewardship in nanosafety research: learning from the past, preparing for an “on-the-fly” FAIR future

Journal Article Frontiers in Physics · January 1, 2023 Introduction: Significant progress has been made in terms of best practice in research data management for nanosafety. Some of the underlying approaches to date are, however, overly focussed on the needs of specific research projects or aligned to a single ... Full text Cite

Reproducibility of methods required to identify and characterize nanoforms of substances.

Journal Article NanoImpact · July 2022 Nanoforms (NFs) of a substance may be distinguished from one another through differences in their physicochemical properties. When registering nanoforms of a substance for assessment under the EU REACH framework, five basic descriptors are required for the ... Full text Cite

From bottle to microplastics: Can we estimate how our plastic products are breaking down?

Journal Article The Science of the total environment · March 2022 Microplastics (MPs) have become an emerging new pollutant of rising concern due to the exponential growth of plastics in consumer products. Most MP and nanoplastic pollution comes from the fragmentation of plastics through mechanical stress, chemical react ... Full text Cite

Refinement of the selection of physicochemical properties for grouping and read-across of nanoforms.

Journal Article NanoImpact · January 2022 Before placing a new nanoform (NF) on the market, its potential adverse effects must be evaluated. This may e.g. be done via hazard and risk assessment. Grouping and read-across of NFs is a possible strategy to reduce resource consumption, maximising the u ... Full text Cite

Quantifying Mechanical Abrasion of MWCNT Nanocomposites Used in 3D Printing: Influence of CNT Content on Abrasion Products and Rate of Microplastic Production.

Journal Article Environmental science & technology · August 2021 Manufactured nanomaterials (MNMs) are incorporated as "nanofillers" into consumer products to enhance properties of interest. Multiwalled carbon nanotubes (MWCNTs) are known for their unique properties and have many applications in polymers. However, the r ... Full text Cite

Nanomaterials-based air-cathodes use in microbial desalination cells for drinking water production: Synthesis, performance and release assessment

Journal Article Journal of Environmental Chemical Engineering · August 1, 2021 Global water desalination capacity is around 95 million m3 day-1, accounting for an enormous energy demand, thus low energy desalination technologies are needed. Microbial desalination cells (MDC), a bioelectrochemical reactor that allows water desalinatio ... Full text Cite

Importance of the number emission factor of combustion-generated aerosols from nano-enabled products.

Journal Article NanoImpact · April 2021 Accidental or open waste burning and incineration of nano-enabled products (NEPs) might lead to the release of incidental aerosols in the nano size range into the environment resulting in harmful effects on humans. We have investigated combustion-generated ... Full text Cite

Risk screening tools for engineered nanomaterials

Chapter · January 1, 2021 It has now been more than 15 years since scientists, researchers, risk analyzers, policymakers, and other decision-makers initiated comprehensive investigations into the potential environmental, health, and safety risks of engineered nanomaterials. During ... Full text Cite

Can an inchi for nano address the need for a simplified representation of complex nanomaterials across experimental and nanoinformatics studies?

Journal Article Nanomaterials · December 1, 2020 Chemoinformatics has developed efficient ways of representing chemical structures for small molecules as simple text strings, simplified molecular‐input line‐entry system (SMILES) and the IUPAC International Chemical Identifier (InChI), which are machine‐r ... Full text Cite

Comparative impact of SiO2 and TiO2 nanofillers on the performance of thin-film nanocomposite membranes

Journal Article Journal of Applied Polymer Science · November 20, 2020 Nanoparticle (NP) additions can substantially improve the performance of reverse osmosis and nanofiltration polyamide (PA) membranes. However, the relative impacts of leading additives are poorly understood. In this study, we compare the effects of TiO Full text Cite

Thin film nanocomposite nanofiltration hollow fiber membrane fabrication and characterization by electrochemical impedance spectroscopy

Journal Article Polymer Bulletin · July 1, 2020 Nano-TiO2 nanoparticles were incorporated into thin film nanocomposites (TFN) formed on hollow fiber support membranes composed of a blend of polysulfone and multi-walled carbon nanotubes. Three different TiO2 nanoparticles (0.01%, 0. ... Full text Cite

Kinome screen of ferroptosis reveals a novel role of ATM in regulating iron metabolism.

Journal Article Cell Death Differ · March 2020 Ferroptosis is a specialized iron-dependent cell death that is associated with lethal lipid peroxidation. Modulation of ferroptosis may have therapeutic potential since it has been implicated in various human diseases as well as potential antitumor activit ... Full text Open Access Link to item Cite

Differential Reactivity of Copper- and Gold-Based Nanomaterials Controls Their Seasonal Biogeochemical Cycling and Fate in a Freshwater Wetland Mesocosm.

Journal Article Environmental science & technology · February 2020 Reliable predictions of the environmental fate and risk of engineered nanomaterials (ENMs) require a better understanding of ENM reactivity in complex, biologically active systems for chronic low-concentration exposure scenarios. Here, simulated freshwater ... Full text Cite

Groundwater Chemistry Has a Greater Influence on the Mobility of Nanoparticles Used for Remediation than the Chemical Heterogeneity of Aquifer Media.

Journal Article Environmental science & technology · January 2020 The application of nanoscale zerovalent iron (nano-ZVI) particles for groundwater remediation has spurred research into the influence of the collector heterogeneity on the nano-ZVI mobility. The chemical heterogeneity of surfaces within aquifer media affec ... Full text Cite

Formulation and Validation of a Functional Assay-Driven Model of Nanoparticle Aquatic Transport.

Journal Article Environmental science & technology · March 2019 Here, we present a model for the prediction of nanoparticle fate in aquatic environments, parametrized using functional assays that take into account conditions of the environmental media and nanoparticle properties. The model was used to explore scenarios ... Full text Cite

Mechanisms limiting the release of TiO 2 nanomaterials during photocatalytic cement alteration: the role of surface charge and porous network morphology

Journal Article Environmental Science Nano · January 1, 2019 Nanomaterials have been widely used in a wide range of manufactured products in order to improve/add new properties. Photocatalytic cement maintains clean and white wall fronts and also provides interesting air pollution-reducing properties due to the phot ... Full text Cite

Gold nanoparticle biodissolution by a freshwater macrophyte and its associated microbiome.

Journal Article Nature nanotechnology · November 2018 Predicting nanoparticle fate in aquatic environments requires mimicking of ecosystem complexity to observe the geochemical processes affecting their behaviour. Here, 12 nm Au nanoparticles were added weekly to large-scale freshwater wetland mesocosms. Afte ... Full text Cite

Non-linear release dynamics for a CeO2 nanomaterial embedded in a protective wood stain, due to matrix photo-degradation

Journal Article Environmental Pollution · October 1, 2018 The release of CeO2-bearing residues during the weathering of an acrylic stain enriched with CeO2 nanomaterial designed for wood protection (Nanobyk brand additive) was studied under two different scenarios: (i) a standard 12-weeks we ... Full text Cite

Incorporation of Cellulose Nanocrystals (CNCs) into the Polyamide Layer of Thin-Film Composite (TFC) Nanofiltration Membranes for Enhanced Separation Performance and Antifouling Properties.

Journal Article Environmental science & technology · October 2018 To achieve greater separation performance and antifouling properties in a thin-film composite (TFC) nanofiltration membrane, cellulose nanocrystals (CNCs) were incorporated into the polyamide layer of a TFC membrane for the first time. The results of Fouri ... Full text Cite

Size-Based Differential Transport, Uptake, and Mass Distribution of Ceria (CeO₂) Nanoparticles in Wetland Mesocosms.

Journal Article Environmental science & technology · September 2018 Trace metals associated with nanoparticles are known to possess reactivities that are different from their larger-size counterparts. However, the relative importance of small relative to large particles for the overall distribution and biouptake of these m ... Full text Cite

Biochar and activated carbon act as promising amendments for promoting the microbial debromination of tetrabromobisphenol A.

Journal Article Water research · January 2018 The increasing occurrence of tetrabromobisphenol A (TBBPA) in the environment is raising questions about its potential environmental health impacts as it has been shown to cause various deleterious effects in humans. The fact that the highest concentration ... Full text Cite

Application and testing of risk screening tools for nanomaterial risk analysis

Journal Article Environmental Science Nano · January 1, 2018 The field of engineered nanomaterial (ENM) risk analysis has matured significantly in the past decade. While there is a suite of new, emerging tools to evaluate ENM risks and make decisions regarding these risks, there has not yet been thorough testing of ... Full text Cite

Modeling the Concentration of Volatile and Semivolatile Contaminants in Direct Contact Membrane Distillation (DCMD) Product Water.

Journal Article Environmental science & technology · November 2017 Direct contact membrane distillation (DCMD) is an emerging water treatment technology that has high salt rejection; however, its commercialization potential for applications such as seawater desalination or industrial wastewater reuse may be limited by low ... Full text Cite

Impact of Sodium Humate Coating on Collector Surfaces on Deposition of Polymer-Coated Nanoiron Particles.

Journal Article Environmental science & technology · August 2017 The affinity between nanoscale zerovalent iron (nano-ZVI) and mineral surfaces hinders its mobility, and hence its delivery into contaminated aquifers. We have tested the hypothesis that the attachment of poly(acrylic acid)-coated nano-ZVI (PAA-nano-ZVI) t ... Full text Cite

Cellulose nanocrystal zero-valent iron nanocomposites for groundwater remediation.

Journal Article Environmental science. Nano · June 2017 Zero-valent iron nanoparticles (nano-ZVIs) have been widely studied for in situ remediation of groundwater and other environmental matrices. Nano-ZVI particle mobility and reactivity are still the main impediments in achieving efficient in situ Full text Cite

Enhanced transportability of zero valent iron nanoparticles in aquifer sediments: surface modifications, reactivity, and particle traveling distances.

Journal Article Environmental science and pollution research international · April 2017 In this study, we assessed the transportability of zero valent iron nanoparticles (nano-Fe0) coated with different organics (carboxy methyl cellulose (CMC), poly acrylic acid (PAA), and xanthan gum) in standard porous sand and in real aquifer se ... Full text Cite

Comparison of Hydrophilicity and Mechanical Properties of Nanocomposite Membranes with Cellulose Nanocrystals and Carbon Nanotubes.

Journal Article Environmental science & technology · January 2017 The inherent properties of hydrophilicity and mechanical strength of cellulose nanocrystals (CNCs) make them a possible alternative to carbon nanotubes (CNTs) that may present fewer objections to application water-treatment membranes. In this work, the hyd ... Full text Cite

Environmental exposure to TiO₂ nanomaterials incorporated in building material.

Journal Article Environmental pollution (Barking, Essex : 1987) · January 2017 Nanomaterials are increasingly being used to improve the properties and functions of common building materials. A new type of self-cleaning cement incorporating TiO2 nanomaterials (TiO2-NMs) with photocatalytic properties is now marke ... Full text Cite

A review of the environmental implications of in situ remediation by nanoscale zero valent iron (nZVI): Behavior, transport and impacts on microbial communities.

Journal Article The Science of the total environment · September 2016 The increasing use of strategies incorporating nanoscale zero valent iron (nZVI) for soil and groundwater in situ remediation is raising some concerns regarding the potential adverse effects nZVI could have on indigenous microbial communities and ecosystem ... Full text Cite

Micro- and nano-X-ray computed-tomography: A step forward in the characterization of the pore network of a leached cement paste

Journal Article Cement and Concrete Research · January 1, 2015 Pore structure of leached cement pastes (w/c = 0.5) was studied for the first time from micro-scale down to the nano-scale by combining micro- and nano-X-ray computed tomography (micro- & nano-CT). This allowed assessing the 3D heterogeneity of the pore ne ... Full text Cite