Seprify Structural Pigments — Seprify

Biological model: Morpho Butterfly, Jewel Beetle (Nanostructured Cuticles)

Company: Seprify

Non-toxic bright white from cellulose nanostructures.

The challenge

Chemical pigments—particularly those using heavy metals like cadmium, chromium, and lead—persist in environments, bioaccumulate in food chains, and create toxicological hazards during manufacturing and product disposal.

Nature's strategy

Morpho butterfly and jewel beetle wing cuticle nanostructures.

What was emulated

Multilayer optical interference systems and light-scattering nanoarchitecture.

The innovation

Plant-based nanostructured pigments that create colour through structural interference rather than chemical composition.

Full case study

Butterflies and beetles produce brilliant colours without pigments—their wings and exoskeletons contain nanostructured layers that manipulate light through interference and scattering, creating iridescence and brightness impossible with chemical dyes. These structures are non-toxic, photostable, and visually superior to conventional pigments. Seprify recognised that nature's nanostructure approach could replace toxic chemical pigments in paints, coatings, and cosmetics. The company engineered cellulose nanostructures that mimic beetle and butterfly cuticle architecture, creating brilliant whites and iridescent colours entirely from biodegradable plant materials. By substituting structural colour for chemical pigments, Seprify eliminated toxic heavy metals, reduced environmental persistence, and created pigments that can return safely to biological cycles. This innovation demonstrates that nature's colour engineering is not merely aesthetic but represents a superior materials paradigm—one where optical properties emerge from architecture rather than chemistry.