A single layer of carbon atoms arranged in a flat hexagonal grid — like chicken wire, at the atomic scale. First isolated in 2004 by Andre Geim and Konstantin Novoselov at the University of Manchester, who won the 2010 Nobel Prize in Physics for it.
Graphene's electrical resistance changes measurably when it contacts particles, gases, heat, moisture, pressure, or chemical compounds. That change is detectable, measurable, and recordable in real time — making graphene the world's most sensitive natural sensor material. Not theoretical. Buildable today with commercially available graphene and basic electronics, for under £50 a prototype.
The documented gap: Graphene was discovered on Manchester's doorstep in 2004, backed since by hundreds of millions in public and sovereign wealth funding. Sixteen years later, most UK infrastructure operators still run zero graphene-based sensors. GraphShield exists to close that gap independently — no institutional access required.
A single sheet of graphene is one atom thick (0.345 nanometres — about 250,000x thinner than a human hair). Stack a few sheets and you get different grades:
Simple maths: more layers = cheaper and tougher, but less surface area per gram. Fewer layers = pricier and more sensitive.
Measured in m²/g using a test called BET. Tells you how much material is available to react, sense, or bond.
The maths: a perfect single sheet has a theoretical surface area of 2,630 m²/g — over a third of a football pitch, from one gram. Real industrial nanoplatelets typically measure 15-150 m²/g — roughly a tennis court per gram. High-end engineered grades can push past 700 m²/g.
Measured in ohms per square (Ω/sq) — unique to thin films because resistance doesn't change with size, only shape.
The maths: resistance = sheet resistance × (length ÷ width). A strip of 500 Ω/sq material, 10 squares long, reads 5,000 ohms end to end. Commercial graphene ranges ~30 Ω/sq (excellent) to ~3,000 Ω/sq (lower grade). Lower = better conductor.
Graphene Oxide (GO) is ~60-70% carbon, rest oxygen — water-soluble, easy to process, weaker conductor. Reduced Graphene Oxide (rGO) strips oxygen back out to 85-95% carbon. Pristine graphene/GNP sits at 95-99%+ — what GraphShield uses for a clean, predictable sensor signal.
The cheat sheet: Cheap and tough for a coating? → GNP, £20-90/kg. Water-processable inks or films? → GO, then reduce (rGO) if you need conductivity back. Lab-grade electronics? → CVD monolayer, priced per sheet. Everything GraphShield builds runs on GNP — best balance of conductivity, cost, and scale.
| Sector Group | Examples | Status |
|---|---|---|
| Fire & Safety | GraphGuard, GraphShield PPE, GraphLock | Prototyped & tested |
| Infrastructure & Rail | GraphRail, GraphPile, GraphTower | Live monitoring |
| Energy & Oil/Gas | GraphOil, GraphGrid, GraphRig | Live monitoring |
| Construction & Heavy Plant | GraphCoupler, GraphCrane, GraphTrench | Disclosure filed |
| Consumer & Lifestyle | GraphCup, GraphSleep, GraphSaddle | Disclosure filed |
| Advanced Materials | GraphDope (superconductors), GraphSkim | Concept validated |
| Water & Environment | GraphPure, GraphHook, GraphLine | Disclosure filed |
Ownership: All IP is 100% independently owned by Steven Dodd. No patents are for sale or licence-transfer — GraphShield brokers graphene material and sensor-as-a-service data, never the underlying IP.
Graphene oxide membranes can filter salt from seawater at the molecular level while using significantly less energy than traditional reverse osmosis — University of Manchester research already at pilot scale.
Mechanism: graphene oxide membranes have nanoscale pores that can be precisely tuned to let water molecules through while blocking larger salt ions — University of Manchester researchers (including the National Graphene Institute) published landmark work showing graphene oxide membranes can sieve common salts from water at pore sizes below 1 nanometre. Efficiency gain: graphene oxide membranes require substantially less pressure (and therefore less energy) than conventional reverse osmosis membranes to achieve comparable filtration, which matters significantly for desalination plant running costs. Status: pilot and early commercial-scale trials underway (various water tech companies licensing university-developed IP); not yet mainstream replacement for reverse osmosis at large municipal scale. Relevance: this is one of the most commercially significant and well-evidenced graphene applications globally — worth tracking for any GraphShield water-infrastructure monitoring angle (e.g. sensor integration into desalination membrane monitoring for fouling/degradation detection).
Graphene conducts electrons far faster than silicon, and IBM/Samsung research shows graphene transistors operating at much higher frequencies — but a manufacturing bandgap problem still blocks mainstream chip adoption.
Key advantage: electron mobility in graphene can be over 100x higher than in silicon, meaning graphene transistors can theoretically switch much faster, which matters for high-frequency chips (5G/6G, radar, high-speed computing). IBM has demonstrated graphene transistors operating above 100GHz in lab settings. The blocker: pure graphene has no natural 'bandgap' (the on/off switching property silicon relies on for digital logic), so engineers have had to chemically modify graphene (e.g. via bandgap engineering, using bilayer graphene under an electric field) to make it switch cleanly — this remains a hard unsolved manufacturing problem at scale. Status: graphene semiconductors remain a research-stage technology for full chip replacement, though niche high-frequency RF applications are closer to real deployment. Relevance: long-term category, not a near-term commercial opportunity for GraphShield, but worth tracking given China/Sixth Element's stated ambitions in this space.
Graphene's flexibility and conductivity make it a leading candidate for foldable phone screens and next-gen wearable sensors, with Samsung and others already patenting graphene-based components.
Mechanism: graphene is a single layer of carbon atoms that's both highly conductive and mechanically flexible, unlike brittle indium tin oxide (ITO) currently used in most touchscreens. This makes it a strong candidate to replace ITO in flexible/foldable displays. Samsung has filed multiple patents covering graphene-based flexible display components. Wearables: graphene-coated fabric and flexible sensor patches are being researched for continuous health monitoring (heart rate, hydration, movement) because graphene changes its electrical resistance in response to strain and moisture — the same underlying principle used in GraphShield's resistive sensor architecture. Status: still mostly pre-commercial/prototype stage for consumer display replacement, but component-level wearable sensors (patches, straps) are closer to market. Relevance: direct technical overlap with GraphShield's existing resistance-sensor patent family — wearable health monitoring is a plausible licensing avenue.
Graphene supercapacitors can charge in seconds rather than hours, offering a fast-charge complement to traditional batteries — already used commercially in some EV regenerative braking and grid-stabilisation systems.
Mechanism: graphene's huge surface area per gram (theoretically up to 2,630 square metres per gram) lets it store far more electrical charge on its surface than conventional capacitor materials, without the slower chemical reactions batteries rely on — meaning much faster charge/discharge cycles (seconds to minutes vs hours) and far higher cycle life (100,000+ cycles vs a few thousand for lithium-ion). Trade-off: supercapacitors generally store less total energy per kg than batteries, so they're used as a complement (for rapid bursts of power, like regenerative braking or grid frequency stabilisation) rather than a full battery replacement. Commercial status: several companies (Skeleton Technologies, Zapgo) have already commercialised graphene/carbon supercapacitor products for automotive and grid applications. Relevance: a mature-but-still-growing category; worth noting for any future GraphShield energy-storage-adjacent patent work, though the space already has established commercial players.
Graphene's extreme sensitivity to vibration and pressure makes it a promising material for next-generation microphones and hearing aid sensors — potentially far more sensitive than standard piezoelectric components.
Mechanism: graphene membranes are extraordinarily thin (one atom thick) yet mechanically strong, which lets them vibrate in response to sound pressure with very low mass and very high sensitivity — university research groups (including University of Cambridge and various acoustic engineering labs) have built prototype graphene microphone diaphragms that outperform conventional Mylar or piezoelectric membranes in frequency response and sensitivity, particularly at higher frequencies that standard hearing aid components struggle to reproduce clearly. This has direct relevance to hearing aid design, where clarity at higher frequencies is often the weakest point for users with hearing loss. Status: prototype/lab stage, not yet in commercial hearing aids, but the underlying physics is well demonstrated. Relevance: this is the technical foundation behind the GRAPHHEAR patent concept — using a graphene-silver resistive/acoustic element to improve hearing aid sensitivity and clarity, directly informed by lived experience of hearing loss.
Ford already uses graphene in production vehicle parts for durability, sound resistance, and weight reduction; academic work extends this to carbon fibre reinforcement.
Ford: confirmed use of graphene in production components to enhance durability, sound resistance (noise dampening), and weight reduction — graphene cited as 200x stronger than steel and highly conductive/good sound barrier. Academic/industry sources describe graphene reinforcing carbon fibre composites by distributing stress and absorbing shock energy for higher impact tolerance (sports equipment, aerospace). Grand View Research: graphene-reinforced polymer composites offer high strength-to-weight ratio, positioned to replace steel/aluminium in some applications. Status: already in production automotive use (Ford) — composite/structural graphene claims need to be specific to a niche application or integration method to be novel.
First Graphene (Ste's supplier) already has a published fire-retardant construction materials product line — direct overlap with GraphGuard/GRAPHSKIM ambitions.
First Graphene has publicly updated on graphene-enhanced fire-retardant materials developed specifically for construction and housing applications (own product line, not just research). Mechanism broadly: graphene/rGO lamellar structure creates a barrier effect that slows ignition and burn rate when coated onto or blended into a material (epoxy resins, fabrics, coatings). Graphene aerogels (covalently cross-linked) demonstrated resisting flame at up to 1500C for a full minute without structural degradation — extreme high-temp performance benchmark. rGO-coated fabrics also researched as flame-retardant textile treatment. Existing patent: CN112029383A covers expanded graphene fire-resistant/antistatic material. Status: IMPORTANT — First Graphene, Ste's own material supplier, already sells into the fire-retardant construction space. Worth a direct conversation with Michael Bell about whether GraphGuard/GraphSkim overlaps or complements their existing fire-retardant product, rather than risk duplicating effort blind.
Industrial-grade graphene at 0.5wt% loading reduces oxygen permeability in flexible packaging film by 43% — real measured figure.
Key data point: 0.5 wt% industrial-grade graphene reduced oxygen permeability by 43% in a flexible packaging film study (published, peer-reviewed). PLA-graphene sandwich structures show good machinability plus strong water vapor and oxygen barrier performance for food packaging. Graphene oxide (GO) ultrathin films shown to be effective barriers for both liquid and vapor permeants (NIH-published). Patent exists: EP3245246B1, graphene oxide barrier film, covering improved permeability resistance to oxygen gas and vapor. Status: this is well-documented and already patented at the general material level — a new packaging claim would need a specific product format or application niche.
Official UK Parliament written evidence names real UK companies already using graphene in production — Bombardier, Sellafield, BE Aerospace, and others. Real leads, not speculation.
Source: UK Parliament committee written evidence (ref GRA0008) explicitly names UK graphene end-users: Bombardier, the ATI (Aerospace Technology Institute), BE Aerospace, Sellafield Ltd, Nanoforce Technology Ltd, Flexenable Ltd, Polyphotonix Ltd, Haydale Composite Solutions Ltd. These are confirmed real industrial graphene users, not lab-only research. Separately, major graphene composite/material producer-suppliers (not end-users, competitors/alternates to First Graphene) include: Directa Plus, Haydale, Versarien, XG Sciences, Graphenea. Black Swan Graphene positions itself as a bulk graphene business specifically targeting concrete and polymer end-uses (same space as Concretene). ACTION NOTE: every name on the end-user list needs to run through the Clean Partner Standard 6-point check before any serious outreach — Sellafield in particular (nuclear site) will need careful handling given nature of GraphShield's existing critical-infrastructure/institutional-accountability work. These are real potential targets for either (a) brokering a better/independent graphene supply deal via First Graphene or Sixth Element, or (b) offering GraphShield sensor/monitoring knowledge as a value-add.
One layer of carbon atoms, one atom thick, 200x stronger than steel. Here's what that actually means and why it matters for sensors.
Graphene is a single layer of carbon atoms arranged in a hexagonal grid — like chicken wire, but at the atomic scale. It was isolated in 2004 at the University of Manchester by Andre Geim and Konstantin Novoselov, who won the 2010 Nobel Prize in Physics for it. What makes it useful isn't just the strength headline (200x steel, true but rarely relevant outside marketing). The property that matters for real engineering is that graphene's electrical resistance changes measurably when it contacts heat, smoke, moisture, pressure or chemicals. That single property turns a sheet of carbon into the most sensitive natural sensor material available — buildable today with a multimeter and under £50 of parts.
Commercial graphene admixture for concrete developed by University of Manchester GEIC + Nationwide Engineering, now backed by Black Swan Graphene supply deal.
Product: Concretene. Developers: Nationwide Engineering + Graphene Engineering Innovation Centre (Manchester). Supply partner: Black Swan Graphene. Mechanism: graphene acts as nucleation catalyst in cement hydration, improving microscopic bonding. Results reported: up to 30-50% compressive/tensile strength improvement, rapid early strength gain, reduced porosity and permeability, ~30% CO2 emissions reduction (via reduced cement volume needed for same strength). Deployed in real UK construction projects (car park slabs, etc.) already. Status: commercially available product, not just lab research — direct competitor/reference point for any new graphene-cement patent claims.
Multiple peer-reviewed studies show graphene nanoplatelet oil additives reduce friction coefficient by 40-77% vs base oil.
Key figures: nano-graphene lubricating oil reduced towing torque 1.82-5.53% (real engine test). Graphene as PAO base oil additive: friction reduced up to 77% lower vs base oil in one study. Engine test: friction coefficient reduced 40% vs base lubricating oil, with anti-wear improvement also noted (particulate matter emissions study). Functionalized graphene nanoplatelets (9-layer average) reduced both coefficient of friction and wear when used as lubricant additive. Graphene Flagship EU project validated stability improvements in live motocross engine tests. Status: strong, consistent, multi-study evidence base already exists — this is a well-trodden research area, good reference data for dosage/expected gains but not a novel claim on its own.
First Graphene (Ste's own supplier) has already demonstrated graphene-perovskite solar cells hitting up to 30.6% efficiency — direct link to existing supply relationship.
Key figures: First Graphene has reported graphene addition to perovskite solar cells (PSC) improving efficiency up to 30.6% and improving thermal stability. Graphene Flagship EU: graphene-enabled solar farm showed smallest performance drop at temperatures up to 70C vs commercial tech (better heat tolerance = more consistent real-world output). One study measured 20.3% improvement in energy conversion efficiency from graphene integration. Solar cells with graphene undergo less thermal stress during production = fewer microcracks in the cell (manufacturing yield benefit, not just end-product performance). Notable: this is First Graphene's own published work — direct relevance to Ste's existing 5% finder's fee supply relationship. Status: active commercialisation push already underway by the exact supplier Ste already brokers for — worth checking if First Graphene wants help finding UK/EU solar manufacturer customers for this specific application.
Lockheed Martin's Perforene and Clean TeQ's graphene membranes are real commercial/near-commercial desalination and filtration products.
Lockheed Martin Perforene: graphene membrane withstands hundreds of psi trans-membrane pressure, highly flexible, tolerates high curvature — positioned for desalination/filtration. Clean TeQ: graphene membranes operate at lower pressure (2-6 bar) than reverse osmosis, consuming less energy. Academic consensus: graphene oxide membranes are impermeable to gases/vapors except water, driving strong desalination research interest (Argonne National Lab GOLeafe capacitive deionization system also notable — low power, single 0.5hp pump). Status: this is an active commercial race between serious players (Lockheed, Clean TeQ) — high barrier to entry for a new filtration claim without major capital/lab backing.
Multiple commercial graphene-rubber masterbatch products already exist for tyres, improving durability, wet grip, and energy efficiency.
Levidian: unveiled graphene-enhanced prototype truck tyre combining net-zero graphene with carbon black in tread formulation (2026). Perpetuus Advanced Materials: graphene masterbatch technology for tire durability, wet grip, and energy efficiency, JV announced. Gratomic Tires: real-world test results published (2019) on light commercial vehicles vs standard tyres — 'breakthrough' wear/performance results claimed. Graphene-rubber masterbatch (GRMB) manufacturing method also published academically as a cost-effective production route. Status: graphene tyres have been commercially available for several years in the Asian bicycle/automotive market already — this space is crowded, not virgin ground.
Graphene biosensors already achieve sensitivity down to 0.1 femtomolar — millions of times more sensitive than conventional sensors; multiple firms (Haydale, Graphenea) active commercially.
Key data: graphene biosensors can reach sensitivity down to 0.1 femtomolar, described as millions of times higher than conventional sensor technology. Reported sensitivity ranges 0.64-1100 uA mM-1 cm-2 depending on sensor type, linear detection range 0.05um-32mm. Graphenea: graphene's broad electrochemical window (~2.5V in 0.1M phosphate buffered saline) and low charge-transfer resistance make it well suited to biosensing. Haydale actively marketing graphene biosensors for biomarker detection as an advance over traditional metallic-component sensors. Self-powered graphene biosensor research also emerging (real-time health monitoring, no external power needed). Status: this space overlaps directly with GraphShield's existing resistance-sensor architecture (GraphGuard, GraphLock etc) — strong technical alignment, but commercial biosensor field is already active with established players (Haydale, Graphenea).
Graphene ceramic coatings are a mature, saturated consumer product category (car detailing) — Adam's Polishes, Onyx, GlassParency all sell them.
Multiple established consumer brands sell 'graphene ceramic coating' products for car paint protection: Adam's Polishes (50% increased active resin content vs standard ceramic), Onyx Graphene Coat (10H pencil hardness, 120s water contact angle at 20 degrees, lifetime durability claim), GlassParency Graphene Coating. American Icon Finishes publishes full SDS. Also: Graphene Manufacturing Group's THERMAL-XR industrial coating for heat dissipation (300m2 surface area per gram) and corrosion resistance. Status: this category is fully commercialized and saturated at consumer level — any new coating patent needs a genuinely different mechanism/application (not just 'graphene coating') to clear prior art.
Graphene-enhanced Li-ion batteries reach ~260 Wh/kg vs ~180-250 Wh/kg standard graphite anodes; GMG has a working graphene-aluminium-ion battery with 6-minute fast charge.
Benchmark figures: standard commercial Li-ion batteries <250 Wh/kg. Graphene-enhanced Li-ion: ~260 Wh/kg. Graphene Li-S (theoretical): up to 400 Wh/kg, some sources cite up to 1000 Wh/kg for graphene-incorporating cells. Graphene Manufacturing Group (GMG): built a working graphene-aluminium-ion battery, ~3.0V nominal, fully charges in 6 minutes, stable over hundreds of cycles — real hardware, not just lab paper. Mechanism: graphene's high conductivity + large surface area improves electron transport and compensates for insulating properties of materials like sulfur in Li-S cells. Status: heavily researched and partially commercialized (GMG) — battery-level graphene claims face strong prior art.
Graphene used as a nutrient carrier in fertilizers improves targeting/efficiency and crop yield; market valued ~$630m in 2025, growing 18.7% CAGR.
Mechanism: graphene used as a carrier material lets fertilizer nutrients be delivered more precisely/targeted to plants, improving overall fertilizer efficiency and reducing waste. Research shows graphene nanoparticles added to fertilizer can improve soil clay content/texture and water retention capacity. Documented benefits: improved seed germination rates, better vegetative growth, increased crop yield in maize studies (concentration-dependent). Market size: $630m (2025) projected to $3.147bn by 2034 (18.7% CAGR) — confirms real commercial traction, not just lab research. Status: this is a genuinely growing, less crowded commercial category compared to tyres/coatings/batteries — worth deeper look if there's a UK agri angle to pursue.
Graphene-printed fabric patterns (honeycomb/spider-web designs) studied for elastic polyester sportswear; major brands (Lee, Wrangler) exploring graphene fibre.
Academic study: comparative analysis of graphene-printed elastic polyester sportswear fabrics (honeycomb vs spider-web pattern application) for thermal regulation and mechanical performance. Kontoor Brands (Lee, Wrangler) has publicly discussed graphene fibre in apparel. Claimed benefits across sources: increased strength, thermal regulation, antibacterial/odour control, durability. Status: mostly early-stage/pattern-specific academic and pilot-brand work — less saturated than tyres/coatings, but printed-pattern and fibre-blend approaches are already explored, so a new claim needs a distinct mechanism (e.g. specific application method or functional integration, not just 'graphene fabric').