01 / 07
Water Innovation

Removing
Microplastics
from Water.

DEPure uses dielectrophoresis, the force of electric field gradients, to concentrate and remove microplastic particles from water continuously, without membranes, chemicals, or moving parts.

Low Voltage
Operating
regime
High Frequency
Field
excitation
TCD
Research
partner
DEPure Electric Filtration
The Problem
Microplastics are
in everything we drink.

Current filtration methods cannot remove particles below 10 µm reliably. Membranes clog, chemicals add cost, and centrifugation requires energy intensive infrastructure. There is no scalable, affordable solution.

8M+
Tonnes of plastic entering the ocean every year
80%
Of global drinking water samples contain detectable microplastics
0
Viable cost effective solutions at industrial scale today
Global Microplastic Contamination Trend
Estimated particles per litre in surface water, 2000 to 2030
Current Filtration Method Limitations
Comparative cost per m³ treated vs. removal efficiency
The Technology
Dielectrophoresis.
Reimagined.

DEP is the force exerted on polarisable particles in a non uniform electric field. We run a low voltage high frequency field to selectively concentrate microplastics. The field does the work, not filters.

01
Water enters the DEP channel

Contaminated flow passes over laser scribed FTO glass with interdigitated electrode geometry

02
Alternating field creates gradient force

A low voltage high frequency field between the electrode fingers generates a field gradient that is strongest at the finger edges

03
Particles concentrate laterally

DEP force deflects microplastics sideways into a collection chamber while water flows forward

04
Clean water exits continuously

Clarified water exits the main channel. Particles are flushed periodically to waste with no downtime

IN →
→ OUT
Substrate
FTO Glass
Field
Low Voltage
Excitation
High Frequency
Electrode
Interdigitated
Proof of Concept
Demonstrated at
Trinity College Dublin.

DEP concentration of polyethylene microplastics confirmed across the low voltage high frequency regime and multiple water types. Visible water clarification observed within minutes under laboratory conditions.

Visible
Water Clarification
White suspension cleared to transparency within minutes. Naked eye observable, no microscopy required
Mapped
Operating Regime Characterised
DEP behaviour characterised across the full low voltage high frequency range. pDEP concentration, crossover and banding all observed
40 µm
Particle Size Targeted
Polyethylene beads reliably concentrated in both tap water and distilled water conditions
DEP Response Across the Operating Range, Polyethylene in Water
Relative particle concentration at the electrode (normalised). Positive is pDEP trapping. Negative is nDEP repulsion.
Tap water
Distilled water
Market Opportunity
Industrial first.
Then the world.

Pharmaceutical and municipal water treatment represent immediate high value entry points. Consumer filtration follows once industrial performance is demonstrated.

Phase 1 · Now
Industrial Water Treatment
Pharmaceutical manufacturing facilities requiring microplastic free process water. Regulatory compliance pull. High value per unit.
€75B+
Phase 2 · 2 to 4 Years
Municipal Water Utilities
National water authorities facing EU microplastic regulation. Scalable modular deployment. Long term infrastructure contracts.
€370B+
Phase 3 · 4 to 7 Years
Consumer Filtration
Point of use filtration for households and public access. Mass market product with high social impact.
€47B+
Water Treatment Market Size
Global market by segment, € billions
Industrial target: Pharmaceutical facilities like Wuxi Biologics process up to 15,000 m³ per day. A single DEPure installation represents a multi million € contract opportunity.
Traction
Early momentum
across key stakeholders.
2024
Trinity College Dublin collaboration secured
Formal research project established with full laboratory access at Ireland's leading university
Early 2025
Proof of concept demonstrated
Visible microplastic removal confirmed at Trinity. Naked eye water clarification within minutes
2025
DEPure Ltd incorporated
Company registered in Ireland and structured for investment and IP protection
2025
Greenpeace engagement
International environmental organisation expressed active interest in the technology
2025
Wuxi Biologics meeting
VP of Manufacturing at a €18B pharma company toured the facility and requested a working prototype
Now
Application to Uisce Éireann
The national water utility is engaged with DEPure
Trinity College Dublin
Research Institution · Formal Collaboration
Active Research Partner
Wuxi Biologics
€18B Pharmaceutical Manufacturer · Dundalk
Prototype Interest
Greenpeace
International Environmental Organisation
Expression of Interest
Uisce Éireann
National Water Utility · Innovation Fund Application
Application Submitted
Stakeholder Engagement Score
Weighted by strategic value, 0 to 10
DEPure · depure.ie

Cleaner water
through better science.

We have demonstrated the effect. Now we build the system. Join DEPure at the start of something that scales globally.

In formal research collaboration with Trinity College Dublin · DEPure Ltd, Ireland · 2025