State changes the material
Wet and dry states alter thickness, transparency and deformation.
Issue 01 / Cultivated matter
Skin MachineMaterial Failure Atlas
Twenty-five plates trace a living sheet through growth, drying, binding, deformation and spatial assembly.
The question
What if fabrication begins with growth?
Bacterial cellulose forms a sheet that can be lifted, dried and attached to a frame. This research asks how its changing behaviour can help form an architectural membrane.
What the tests show: drying alters dimensions and stiffness; frame connections influence motion; inflation explores enclosed volume. The four findings below connect observed changes to the next experiment. They do not establish a certified building material.
Read the test findingsChoose an experiment.
Five routes from growth to assembly.
01 / Cultivate a surface
Growth surface and vessel. Open the cultivation record.
Editorial illustration / Field Assembly02 / Lift and layer
Lifted layers; compare the continuous-growth study.
Editorial illustration / Field Assembly03 / Drying changes form
Drying changes the outline; see the transformation plates.
Editorial illustration / Field Assembly04 / Connect sheet to frame
Frame edge and membrane motion; open the motion studies.
Editorial illustration / Field Assembly05 / Join edges, enclose volume
Joined skins can hold volume; no airtightness, strength or durability claim.
Editorial illustration / Field AssemblyFailure directs the next test
Wrinkle, tear, contraction and contamination become experimental evidence.
Change can become work
Contraction and deformation are explored as inputs for an unbuilt active system.
Material Failure Atlas / 004
What the tests revealed.
Bond strength remains unknown
A fibre can appear integrated while bond strength and failure mode remain unknown.
Wet form is not final
Drying changed thickness and length; wet geometry could not be treated as finished geometry.
Control becomes motion
The complete wet and air-dried plate makes the membrane's frame deformation visible without turning it into a performance claim.
Volume is not a finished enclosure
Inflation produced spatial form without resolving edge, load, support or weathering.
What this establishes
Each visible failure produces a more precise variable for the next experiment.
Second layer / complete laboratory recordRead the full 25-plate atlas+
25original archive plates
05experiment families
20 daysthree-layer growth sequence
5 mminitial sheet thickness in the shrinkage study
14 daysshrinkage observation period / plate 10
04failure modes discussed
Begin with the specimen
The original technical book introduces the material, team and research context before the experiments begin.
Original technical-book cover / four-person research team.
Control cultivation
What changes the way cellulose grows? The experiments varied light, acidity, sugar, glass fibre and plant roots instead of following one fixed recipe.
Condition matrix / seven and twelve days.
Grow the form
Can the growth environment make more than a flat sheet? Threads, fabric, porous scaffolds and repeated lifting redirected growth; one sequence produced three joined layers with pockets.
Continuous growth / three layers in twenty days.
Transform the sheet
What if drying is a second forming process? Air, heat, oil, wax, varnish and water changed thickness, length, transparency, wrinkles and recovery.
Thickness and length change / day zero to fourteen.
Turn shrinkage into motion
Can contraction move a frame? Flexible boundaries turned uneven drying into visible deformation rather than hiding it as a defect.
Booklet p. 44 / wet and air-dried specimens, 0–24 hours.
Inflate, collide, stitch
How can a thin sheet become a three-dimensional form? Inflation, collision, anchoring and smocking produced folds and volume without establishing a certified building envelope.
Booklet p. 61 / untreated and oil-wax-treated forms during inflation.
Experiment archive / 25 original plates
Not one object.
A chain of questions.
Five sequences move from cultivation to spatial assembly. Each starts with a question and ends with a changed material state.
Control cultivation
What changes the way cellulose grows?
Culture vessel / cellulose formation.
Condition matrix / seven and twelve days.
Glass-fibre composite / eleven days.
Plant-root composite.
Grow the form
Can the growth environment make more than a flat sheet?
Stacking layers in the growth tray.
Vertical growth on fabric / ten days.
Cellulose growing through a porous scaffold.
Self-binding across separated specimens.
Continuous growth / three layers in twenty days.
Transform the sheet
What if drying is a second forming process?
Air, heat, colour, oil, wax and varnish.
Thickness and length change / day zero to fourteen.
Transparency after drying and treatment.
Rehydration released wrinkles and reduced transparency.
Thickest recorded sheet / thirty days.
Turn shrinkage into motion
Can contraction move a frame?
Four-anchor frame / wet and air-dried.
Two-frame deformation study.
Booklet p. 44 / wet and air-dried specimens, 0–24 hours.
Flexible frame and self-binding.
Inflate, collide, stitch
How can a thin sheet become a three-dimensional form?
Booklet p. 61 / untreated and oil-wax-treated forms during inflation.
Booklet p. 67 / wet and inflated forms after collision.
Overlap, pucker, side and upward stitching.
Smocking a flat sheet into a spatial skin.
Open protocol / version 0.1
Grow. Interrupt. Read. Repeat.
A material laboratory becomes public when another person can see the conditions, reproduce the sequence and challenge the reading.
- 01
Condition
Set culture, vessel, light, acidity, medium depth and time.
- 02
Grow
Introduce a scaffold, fibre, frame or interruption while the membrane forms.
- 03
Transform
Dry, treat, rehydrate or inflate under recorded boundary conditions.
- 04
Read
Measure the change; photograph the failure; separate observation from claim.
- 05
Repeat
Change one variable, retain the failed specimen and publish the next question.
System study / unbuilt
From experiments to a growing system.
The final study brings cultivation, sensing and movement together in an unbuilt cellulose-growing machine design.
Unbuilt cellulose-growing system: mechanisms, sensing and growth.
Unbuilt machine design for a growing system.
What this establishes
The system study develops observed material change into a speculative unbuilt machine design.
Evidence layer
Reading the evidence.
Evidence and limitations
- Material claims and limits
- These observations belong to individual project specimens. They do not establish structural capacity, facade compliance or a repeatable material specification. Fire, UV, biological ageing, weathering, long-term joints and wet-state mechanics require dedicated testing.
- Archive and image status
- Publication clearance for the original 78-page technical booklet was confirmed on 5 September 2026. This web edition publishes 25 plates from that cleared booklet; material outside it requires a separate permission decision.
- Authorship and contribution
- Skin Machine was developed by Arya Gupta, Hemant Jindal, Muna Abbas and Zeinab Muneam. The archive was reconstructed and presented by Hemant Jindal; individual responsibilities await team verification.
Open research programme
What needs further testing.
- 01
Repeatability
Matched batches with fixed culture, vessel, temperature, time and harvest method.
- 02
Comparable performance
Wet and dry specimens tested with stated geometry and conditioning.
- 03
Assembly reality
Joints, weathering, fire response and one larger repeatable panel.
Authorship / full project record
Research contributors.
Skin Machine was developed by Arya Gupta, Hemant Jindal, Muna Abbas and Zeinab Muneam at the Architectural Association Design Research Laboratory, Studio Spyropoulos / Biological Responsive Systems.
Field Assembly archive
Inspect the evidence record ↗Reconstructed and presented by Hemant Jindal. Only responsibilities verified in the archive are stated here.
Publication details
Publication record.
Cite this page
Arya Gupta, Hemant Jindal, Muna Abbas and Zeinab Muneam. “Skin Machine: Material Failure Atlas.” Field Assembly, Issue 01. Published 1 August 2026; revised 14 September 2026. https://fieldassembly.press/skin-machine.
Page summary
In brief
We asked
Can a building envelope be cultivated instead of manufactured?
What this page shows
Cultivation becomes fabrication when biological variation is observed, compared and deliberately used.
What’s included The original material specimen and failure atlas