
Introducing DCN
Our Densified Carbon Nanotube Sheet is a revolutionary leap in nanotechnology. Built from polymer free, ultra-strong, carbon nanotube sheet, this membrane delivers low-pressure nanofiltration with unparalleled efficiency.
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Here’s how it works
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Hydrophilic and Non-Dewetting
Unlike any other membrane, our DCN membrane is hydrophilic and maintains this characteristic even when dry. This prevents the membrane from becoming impermeable when it becomes dry.
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Low-Pressure Operation
Our DCN technology requires minimal energy to push water through its nanoscale pores, slashing energy costs by design.
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Superior Antifouling Properties
The unique structure of our DCN membrane resists clogging, even under demanding conditions, ensuring consistent performance over time.
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Unmatched Durability
Stronger than steel yet flexible and thin, this novel membrane withstands wear and tear, reducing the need for frequent replacements. The result? A filtration system that’s cleaner, greener, and more cost-effective than ever before.
Why DCN matters

Water is the foundation of life, yet access to clean water remains a challenge for millions. At 4th Phase Technologies, we believe that innovation should serve humanity.
Our DCN membrane isn’t just a technical achievement—it’s a step toward a world where pure water is no longer a luxury, but a given.
4th Phase Technology is rooted in years of rigorous research and development. This isn’t a concept—it’s a proven solution. Curious about the details? Dive into our peer-reviewed publication in the Chemical Engineering Journal, titled "Scalable, flexible, ultra-strong, free-standing papery all carbon nanotube membrane with excellent separation and antifouling properties." It’s the full story of how we’ve harnessed nanotechnology to solve real-world problems.