← All decksMicrofluidic bio-fuel cell · layered explorer · July 2026
The bio-fuel-cell slide, taken apart layer by layer.
Your six-film design as an interactive stack: a CO₂-fed microbial cell on a microscope slide, from the cool ITO/perovskite cover down to the paramagnetic basalt base — with the Tesla-valve LED channel, curved-copper inductive coupling, and the honeycomb graphene bioenergy zone drawn in. Drag to orbit, pull it apart, toggle the optional PEM. Surfaces use the microscopic-topographic texture set.
Hover a film in the stage or pick one from the list to read its material, feature and role. The stack is drawn top-down: L1 is the lid, L6 the chassis. The PEM sits between L3 and L4 and is only drawn in PEM mode.
| Layer | Name | Material | Feature | Role in the cell |
|---|---|---|---|---|
| L1 / 6 | Cool conductive cover top film | ITO + perovskite (PVSK) | Transparent conductor · heat-absorbing | Top contact · thermal exit |
| L2 / 6 | 2D carbon conductors / TMDS conductor | Graphene · MoS₂ · rGO | Honeycomb lattice · biofilm scaffold | Anodic current collector |
| L3 / 6 | Bioenergy zone outlet bioreactor | Biofilm · agar · copper coatings | Tesla-valve LED channel · inductive coil | Biocatalysis · flow rectification · readout |
| optional | Composite proton-exchange membrane between L3–L4 | Composite PEM (Nafion-class) | Toggleable · proton transport | Charge balance / separation |
| L4 / 6 | Copper cathodes electrode | Copper (Cu) | Wavy cathodes · circular Cu curves | Reduction (e⁻ sink) · current carrier |
| L5 / 6 | Magnetic heat sink thermal + power | Magnetic alloy + Cu loops | Castellated fins · induction TX loops | Thermal management · wireless power out |
| L6 / 6 | Paramagnetic basalt base chassis | Paramagnetic basalt | Magnetic ground · edge contact pads | Chassis · magnetic return · takeout |
Membraneless or PEM
Drop the composite PEM in to run a separated cell — it passes protons and blocks crossover. Leave it out to run membraneless on the co-laminar biozone. That switch is what makes the slide multi-use.
Where the current goes
The biofilm on the graphene honeycomb (L2–L3) oxidises CO₂/organics and passes H⁺ through the zone; the wavy copper cathodes (L4) close the circuit and, shaped as curves, double as the inductance path. Induction loops under the heat sink (L5) move power off-chip wirelessly to a receiver coil — no through-glass wiring — with the basalt base (L6) as the magnetic return.
On the site the films become textured planes in WebGL — trackball orbit, scrub explode, click a layer to fly the camera in, and animate the signatures: co-laminar flow and LEDs pulsing down the Tesla-valve channel, electrons hopping the graphene honeycomb, and flux lines breathing around the copper induction coils. Same canvas texture-maps you see here.
- A concept explorer drawn per FIG. 5 (v2): it shows stack order and each film's role. No electrochemical performance figures are modelled or claimed here.
- The surface textures are procedural canvas noise standing in for the microscopic-topographic texture set, not micrographs of real films.
- The WebGL (R3F) build described above is the next step, not something this page contains.