Graphene Takes the Next Step Towards More Sustainable Industrial Innovation
For much of the past two decades, graphene has been presented as one of the most promising developments in modern materials science. Since researchers first isolated the material in 2004, expectations have remained consistently high across sectors ranging from electronics and energy storage through to transport, infrastructure and advanced manufacturing. Its appeal is understandable. Built from a single layer of carbon atoms arranged in a two-dimensional lattice, graphene combines electrical conductivity, transparency, flexibility and remarkable mechanical strength in a form that challenged assumptions about what engineered materials could achieve.
Yet as advanced materials move closer to mainstream industrial deployment, the conversation is changing. Performance alone no longer determines whether a material succeeds commercially. Manufacturers, regulators, investors and infrastructure operators increasingly expect evidence that innovation can be delivered responsibly, with consideration given not only to capability and cost but also to environmental impact, occupational exposure and long-term sustainability. That broader shift sits at the centre of new research by Empa, the Swiss Federal Laboratories for Materials Science and Technology, where scientists are using graphene to test and refine the Safe and Sustainable by Design framework, commonly referred to as SSbD.
Rather than asking whether a finished product is safe once it reaches market, SSbD aims to embed those decisions into the earliest stages of material development. For sectors that depend on long asset lifecycles and substantial capital investment, including construction and infrastructure, that distinction matters. Decisions made in laboratories today increasingly influence procurement standards, environmental reporting obligations and commercial viability years into the future.
Briefing
- Empa is using graphene to test and improve Safe and Sustainable by Design assessment methods.
- Researchers are evaluating entire families of graphene-related materials rather than a single material type.
- Human exposure routes and application environments play a critical role in assessing risk.
- Existing assessment tools designed for chemicals require adaptation for advanced materials.
- The findings could influence future material development across construction, manufacturing and industrial sectors.
Moving Beyond the Traditional Definition of Material Success
Graphene offers researchers an unusually useful case study because the scientific groundwork already exists. Empa researchers have contributed to the European Graphene Flagship programme for over a decade, generating substantial evidence on environmental interactions, human health considerations and material behaviour. Unlike many emerging technologies that still lack broad datasets, graphene provides an opportunity to evaluate not just a material itself but also the frameworks intended to govern future innovation.
Peter Wick, who leads Empa’s Nanomaterials in Health laboratory, explained the rationale behind selecting graphene for this work: “Graphene is a good example because there are already many studies and data available on it.” He added: “We have been working with this material for ten years as part of the Graphene Flagship.”
That foundation allowed researchers to move beyond a simple pass or fail assessment of sustainability. Instead, the project explored whether SSbD can become a practical tool for industry rather than remaining an academic exercise. While safety and sustainability have long been considered separately during product development, combining them into a single decision-making framework introduces a more realistic approach to industrial innovation. It reflects how businesses increasingly operate, balancing technical performance, environmental responsibility and commercial pressures simultaneously rather than sequentially.
One Name Covers an Entire Family of Materials
One of the most revealing findings emerging from this work is that graphene is not one material but a broad family of related materials with differing characteristics and behaviours. Years of research have expanded the category to include graphene oxide, reduced graphene oxide, few-layer graphene and numerous modified derivatives. Even those classifications are not always precise, with multiple variations existing inside each category.
That complexity creates obvious challenges for assessment and regulation, but it also creates opportunities. Instead of treating graphene as a single entity, researchers can compare subclasses and identify how structural changes influence safety and sustainability outcomes. Materials with similar functionality may produce very different exposure profiles depending on their composition, processing route and intended application.
Wick described this approach directly: “We can compare the data for each of these material subclasses and come up with statements about the relationship between the hazard potential of a particular variant and its structure.” He continued: “Since they often have similar functionalities, the safest form of graphene can then ideally be used for each application.”
That concept aligns closely with trends already visible across construction and industrial procurement. Increasingly, buyers are not asking whether a technology works but whether the safest, most sustainable version of that technology has been selected. Advanced materials are beginning to face the same scrutiny already applied to embodied carbon, lifecycle performance and supply chain transparency.
Context Matters More Than Material Alone
One of the strongest themes running through Empa’s work is that exposure determines risk. Materials do not exist in isolation and identical materials may behave very differently depending on how they interact with people and the environment.
Graphene illustrates this clearly. A material incorporated into structural composites presents a very different profile from one used in coatings, filtration systems or biomedical applications. Exposure pathways such as inhalation, ingestion, skin contact or direct entry into the bloodstream fundamentally alter assessment outcomes.
According to Wick: “In order to reliably assess the risk to humans, we need to know how the material is being used.”
That may sound straightforward, but it creates significant challenges for standardised assessment models. Existing sustainability tools were largely developed around conventional chemicals where molecular composition dominates performance. Materials science introduces additional variables including particle size, surface characteristics, manufacturing methods and processing conditions.
Fiorella Pitaro from Empa’s Technology and Society laboratory highlighted this limitation and explained that the project also serves to improve the framework itself. The intention is not merely to assess graphene but to determine where assessment methods can become more effective and easier to apply in practical industrial settings.
Making Sustainability Work for Industry
For frameworks such as SSbD to influence real-world decision-making, they must remain accessible. Large multinational manufacturers may have dedicated sustainability teams and technical resources, but smaller companies often operate under tighter constraints.
Empa’s researchers acknowledge that challenge directly. According to Peter Wick, assessment methods must become simpler and easier to use without compromising scientific reliability. That balancing act remains one of the biggest barriers to wider adoption.
The implications extend well beyond graphene. Infrastructure systems are becoming more dependent on advanced materials to improve efficiency, durability and resilience. Graphene-enhanced composites, intelligent coatings, sensing technologies and energy applications continue to attract investment and commercial interest. As those technologies mature, frameworks capable of assessing both opportunity and consequence may become an expected part of development rather than an optional extra.
Building Confidence Into the Next Generation of Materials
The cautious optimism surrounding graphene reflects a broader evolution taking place across industrial innovation. Existing evidence suggests graphene may offer advantages over some traditional carbon-based alternatives across a range of applications, but researchers remain careful not to overstate certainty.
As Wick noted simply: “We don’t know everything yet.” That measured position may ultimately strengthen confidence rather than weaken it. Materials innovation is entering a phase where claims of disruption matter less than evidence of responsible deployment.
For construction, infrastructure and industrial sectors that depend on trust, longevity and measurable outcomes, that shift could become one of the defining characteristics of the next generation of material development.
