In 2010 the Israeli architect Neri Oxman, then a researcher at the MIT Media Lab in Boston, founds the Mediated Matter group, with a research programme that stands apart from the outset from most digital experimentation in architecture: it isn't about generating complex forms through algorithms, but about having living organisms, molecular biology and robotic fabrication collaborate directly within the same production process. Oxman calls this approach "material ecology" — a term that explicitly rejects the traditional separation between form design and materials science: in her work, form is a direct consequence of how the material behaves, grows or decays, not a design imposed from outside that the material must then adapt to.
Silk Pavilion: a robotic arm and six and a half thousand living collaborators
The project that made Oxman known well beyond academic circles is the Silk Pavilion, built in 2013 at MIT. The starting point is a precise observation about the behaviour of the silkworm (Bombyx mori): when it builds its own cocoon, the animal doesn't weave randomly, but modulates the density of the silk thread according to light and exposure gradients it senses in the surrounding environment, producing denser zones where more structural protection is needed and sparser ones elsewhere. Oxman's team translated this biological observation into a two-stage construction process: a CNC robotic arm first lays down a single continuous silk thread following a pattern calculated from a structural analysis — the zones of a hypothetical geodesic dome where more load-bearing material is needed and those where less is — building a twenty-six-polygon scaffold that reproduces, at a much larger scale and with a single thread, the logic of a natural cocoon's initial support threads.
At that point, six and a half thousand live silkworms were released onto the scaffold. Reacting to the same light and density gradients they would use to complete a natural cocoon, the animals spun their own silk over and into the pre-existing structure, thickening the weave exactly where the designers had left wider openings in the robotic pattern — effectively completing and finishing, on their own, a job started by a machine, in a direct dialogue between digital fabrication and unprogrammed animal behaviour. The final result — a suspended dome roughly five metres in diameter, now part of the MIT Museum's permanent collection in a second, 2020 version (Silk Pavilion II) — cannot be replicated identically twice, because the biological part of the process introduces a variability no algorithm fully controls.
Aguahoja: a structure designed to dissolve
If the Silk Pavilion explores collaboration with a living organism during construction, Aguahoja (2018-2019) explores the opposite extreme: a fully biodegradable material, explicitly designed to decompose after use. The biocomposite behind the project is made from three components, all biological in origin: chitosan (derived from crustacean shells, a waste product of the seafood industry), cellulose and pectin. These substances, mixed in varying proportions and 3D-printed by a robotic arm onto large-scale structures — the Aguahoja I version reaches roughly three metres in height — produce a material whose mechanical properties, colour and transparency vary locally according to the formulation used at each point, with no need to assemble separate pieces: it's the same material changing behaviour depending on the mix printed there.
Aguahoja's most radical conceptual point is that the structure, if exposed to the weather or buried, naturally decomposes, returning its own components to the environment without leaving polluting residues — an explicit critique, voiced by Oxman herself in several talks and publications, of the implicit assumption that a building should be designed to last as long as possible regardless of context. For a temporary pavilion or an installation, Oxman argues, infinite durability isn't necessarily a virtue: it can be a waste of resources if the object's useful life is short anyway.
Vespers and the next step: microorganisms in the finished product
The Vespers series, presented starting in 2016, pushes the relationship between biology and fabrication further: 3D-printed masks incorporating live synthetic microorganisms or bacterially produced pigments, able to keep reacting and changing appearance over time after printing. This is no longer a material imitating a biological process that happened elsewhere (like Hy-Fi's dried mycelium, described in the dedicated piece in this section): it's an object hosting a biological process still under way at the moment of use, further blurring the line between artefact and organism.
Criticism and scalability: her own work's declared limit
Oxman's work is not without criticism, including from within the academic materials-engineering community: many of her projects remain one-off installations, made with slow and expensive fabrication processes, still far from any application at the scale of a habitable building or repeatable industrial production. It's a criticism Oxman herself has never explicitly denied: the declared value of her work isn't immediate scalability, but opening up a conceptual repertoire — showing that it's possible to design a material that changes its properties point by point, or a building that collaborates with a living organism during its own construction — which others, with more industrial goals, may in future make practicable at wider scale. In this sense her work should be read more as frontier research than as a construction-site proposal: a role that, in the history of building materials, has always been necessary before an experimental technology became a standardised, widespread product.