The nanomaterials market is entering a critical phase in 2025, where innovation is being matched with stronger safety, regulatory clarity, and global standardization. As nanomaterials continue to expand across electronics, energy, medicine, construction, and consumer products, regulators and researchers are sharpening their focus on how these materials are tested, defined, and governed. A major catalyst for this shift is the new OECD guidance led by the European Commission’s Joint Research Centre (JRC), released in December 2025, which updates global approaches to nanomaterial safety testing.
Why Is Safety Testing Becoming Central to the Nanomaterials Market?
Nanomaterials exhibit physical and chemical properties that differ fundamentally from conventional materials. These unique characteristics require specialized safety testing procedures to identify potential adverse effects on humans and the environment. In 2025, updated guidance on sample preparation and dosimetry for manufactured nanomaterials was published by the OECD, with scientific leadership from the JRC. This guidance reflects more than a decade of accumulated knowledge since the previous update in 2012 and strengthens reproducibility, reliability, and regulatory acceptance of nanomaterial testing.
What Does the 2025 OECD Guidance Change for the Nanomaterials Market?
The 2025 update expands beyond earlier frameworks by addressing the full lifecycle of nanomaterial safety testing. It covers general principles, dosimetry, and regulatory sample preparation, ensuring alignment with modern scientific understanding.
Key Areas Covered in the 2025 Guidance
| Testing Area | Scope Covered |
| Physical and chemical characterization |
Particle size, structure, and composition |
| Toxicological testing | Human health impact assessment |
| Ecotoxicological testing | Environmental effects, especially aquatic systems |
| Environmental fate | Behavior and transformation in ecosystems |
| Toxicokinetics | Absorption, distribution, and elimination |
How Is Expanding Nanotechnology Use Influencing Market Oversight?
Nanotechnology operates at the nanoscale, approximately 1 nm to 100 nm, and is now embedded across multiple industries. Its widespread adoption has increased the urgency for regulatory research to manage potential risks without slowing innovation. A JRC-OECD analysis reviewing 25 years of nanotechnology research and regulation identified recurring challenges that continue to influence market development.
Persistent Regulatory Challenges
- Absence of a globally harmonized regulatory definition
- Limited applicability of traditional test methods
- Complexity in exposure assessment and dose quantification
- Difficulty measuring nanomaterials in complex media
- Need for FAIR (Findable, Accessible, Interoperable, Reusable) data systems
- Shortage of certified reference nanomaterials
Why Does a Clear Definition of Nanomaterials Matter for Market Growth?
Although there is global scientific agreement on the nanoscale range, legal definitions of nanomaterials vary by region. A major challenge is how agglomerates and aggregates are measured and counted. To address this, the European Commission adopted a harmonized recommendation for defining nanomaterials, focusing on the measurement of constituent particles. In support of this definition, the JRC developed two new certified reference materials, enabling laboratories to reliably identify and measure nanomaterials for regulatory purposes.
How Is Exposure Assessment Shaping Risk Management Strategies?
Understanding exposure is essential for effective risk assessment in the nanomaterials market. While progress has been made in identifying exposure pathways, data gaps remain, particularly regarding dose quantification. The complex behavior of nanomaterials complicates exposure modeling, making it difficult to accurately reflect real-world conditions in occupational and environmental settings.
How Does Policy Alignment Influence the Future of the Nanomaterials Market?
The JRC plays a central role in supporting global chemical testing frameworks, strengthening both competitiveness and regulatory alignment. Nanotechnology is positioned to contribute to multiple EU policy objectives, including sustainability, industrial leadership, and safe-by-design innovation. In September 2025, the European Commission adopted a Strategy on Research and Technology Infrastructures, reinforcing access to facilities such as the JRC Nanobiotechnology laboratory for research on nanomaterials, nanomedicines, and micro(nano)plastics.
Next Steps: What Should Stakeholders Do Now?
- Align testing practices with the 2025 OECD guidance
Review existing safety testing workflows and update sample preparation and dosimetry practices to match the latest guidance. This helps ensure reproducible results and smoother regulatory review. - Strengthen measurement and reference standards
Adopt certified reference materials and follow harmonized nanomaterial definitions to improve measurement accuracy and reduce compliance uncertainty. - Advance safer and more efficient testing approaches
Gradually integrate alternative toxicological testing methods, such as in vitro models, to support faster, ethical, and cost-effective safety assessments. - Improve data management and usability
Ensure safety and exposure data follow FAIR principles so they can support regulatory decisions, cross-study comparison, and future innovation.
About the Author
Tania Dey is a content writer and SEO executive specializing in transformation-focused and insight-driven narratives. She develops compelling, research-backed content aligned with evolving business priorities, digital behavior, and audience expectations. Her work supports organizations in articulating clear value propositions, strengthening visibility, and communicating strategic intent effectively. Passionate about storytelling grounded in data, she emphasizes clarity, relevance, consistency, and measurable digital impact across platforms. She can be reached at: info@nextmsc.com
