Clean Water,
Clean Life
Meet the Renature Filter, an affordable water filtration system
We specialize in creating effective and reusable water purification solutions that cater to various needs. Our focus is on affordability and customization for your specific requirements.
A New Approach to Water Filtration
Conventional filters are a temporary fix - creating waste while failing to address the core problem of water pollution.
The Renature Filter represents a fundamental shift. Made from advanced materials science, we turn common 3D-printed polylactic acid (PLA) into a high-performance, reusable adsorption device. Our PLA surface engineering makes a stable, graphene oxide coating that actively captures pollutants where disposable filters simply trap them and clog themselves.
It's not just an ordinary water treatment device, it's a fully customizable, zero secondary pollution, high-capacity purification platform designed for labs, remote settings, and point-of-use applications.

Renature Filter System
A modular, 3D-printed filtration system with biomimetic flow channels and graphene oxide coating for effective pollutant capture.

Stackable Modular Design
Compact, modular PLA filter body with W-shaped hose interfaces to reduce slipping and leakage. Modules can be stacked in layers to scale throughput.

Biomimetic Flow Channels
Inspired by the kidney's glomeruli, AI-assisted generative design creates winding channels that maximize water-surface contact in minimal volume.

Surface Engineering Process
From white PLA scaffold to graphene oxide coated filter. NaOH etching + KH550 coupling agent creates durable anchoring for the GO active layer.
How It Works
A new approach to water filtration using advanced materials science and biomimetic design principles.
Activate and Attract
We start with a 3D-printed, biodegradable PLA structure. Its surface is activated using a lab-optimized chemical etching process, creating a rough, porous landscape. A silane coupling agent is then applied onto this surface, forming a durable molecular 'glue' to bind our active adsorbent.
Capture and Contain
A uniform coating of graphene oxide (GO) is chemically immobilized onto the prepared PLA scaffold. When contaminated water flows through, pollutants like dyes and pharmaceuticals are captured through multiple mechanisms. First, they are strongly adsorbed onto the GO via pi-pi interactions and electrostatic forces while being securely contained within the filter's engineered matrix.
Regenerate and Reuse
Unlike single-use filters, Renature Filter is designed for multiple cycles. Once saturated, the captured pollutants can be desorbed in a controlled regeneration process. Laboratory tests confirm the coating's exceptional stability, retaining over 86% of its structure in water after 14 days and maintaining over 75% of its original adsorption capacity after 6 reuse cycles.
Why Choose Renature Filter
Our approach combines advanced materials science with sustainable design principles to deliver effective, reusable water purification.
Biodegradable PLA Base
3D-printed from polylactic acid, our filter scaffold is fully biodegradable and customizable to your specific needs.
Graphene Oxide Coating
Advanced GO coating captures pollutants through pi-pi interactions and electrostatic forces, removing dyes and pharmaceuticals.
Reusable Design
Unlike single-use filters, maintain over 75% adsorption capacity after 6 cycles. Regenerate and reuse for sustainable purification.
Zero Secondary Pollution
Immobilized coating prevents nanoparticle release. No waste stream, no secondary pollution - just clean water.
Designed For
Research Laboratories
Modular, low-infrastructure filtration prototypes for controlled experiments.
Remote Communities
Decentralized purification for areas lacking centralized treatment infrastructure.
Industrial Wastewater
Handle dye, chemical, and pharmaceutical effluents with low operating costs.
Point-of-Use
Home and business water purification with customizable solutions.
Inspired by the Human Kidney
We borrowed a design principle from the human kidney: maximize fluid-surface contact in a tiny volume. The kidney's glomeruli increase contact area through winding capillary-like channels in a small space.
Using 3D printing and AI-assisted generative design in Fusion 360, we create glomerulus-like channels that guide water through high-contact pathways - then stack modules to scale throughput without redesigning the core system.
- Detachable top/bottom covers for easy coating before assembly
- W-shaped hose interfaces to reduce slipping and leakage
- Stackable modular design for scalable throughput
Meet Our Team
Passionate about saving the environment and making clean water accessible to all.

Aaron Bai
Innovation & Technical Design
Aaron has always been passionate about saving the environment. As the tech person for GreenSurface, he leads the scientific development, combining his passion and scientific skills to make a viable material solution. He drives the experimental design, lab testing, and data analysis.

Serena Qu
Market Strategy & Customer Adoption
Serena leads the project's market strategy and commercialization planning, defining target customers and go-to-market pathways to ensure scalability and real-world adoption.
Frequently Asked Questions
Learn more about how the Renature Filter works and what makes it different.
Contact Us
Feel free to contact us with any questions or concerns! We're excited to discuss how the Renature Filter can help with your water purification needs.
Let's Chat
greensurfacepurification@gmail.comSend us a message
Our Commitment
At Green Surface Purification, we provide affordable and customizable water purification systems designed for effective filtration. Our mission is to enhance water quality and accessibility for all.
Meet the Team