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Related Experiment Video

Updated: Mar 24, 2026

Three-Dimensionally Printed Microfluidic Cross-flow System for Ultrafiltration/Nanofiltration Membrane Performance Testing
10:19

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Three-Dimensionally Printed Microfluidic Cross-flow System for Ultrafiltration/Nanofiltration Membrane Performance

Nathaniel C Wardrip1, Christopher J Arnusch2

  • 1Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede-Boqer Campus.

Journal of Visualized Experiments : Jove
|March 12, 2016
PubMed
Summary

A novel 3-D printed microfluidic system automates membrane fouling tests. This innovation aids in understanding and managing membrane fouling for improved filtration efficiency in various applications.

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Biotechnology

Background:

  • Membrane fouling significantly hinders industrial processes and limits the efficiency of membrane-based filtration systems.
  • Effective management of membrane fouling is crucial for optimizing performance and extending membrane lifespan.
  • Current methods for studying fouling can be resource-intensive, especially when dealing with valuable or limited sample materials.

Purpose of the Study:

  • To design and fabricate an automated, 3-D printed microfluidic cross-flow filtration system.
  • To enable parallel testing of multiple membranes and facilitate the study of membrane fouling.
  • To demonstrate the system's capability in observing fouling with model foulants and its potential for diverse applications.

Main Methods:

  • Utilized multi-material photopolymer 3-D printing for fabricating microfluidic cells with distinct polymer layers.
  • Integrated a transparent hard polymer for the cell body and a flexible polymer for leak prevention.
  • Tested the system with ultrafiltration (UF) and nanofiltration (NF) membranes using bovine serum albumin (BSA) as a model foulant.

Main Results:

  • Successfully fabricated a 3-D printed microfluidic system capable of testing up to four membranes concurrently.
  • Observed significant flux decline in UF and NF membranes when exposed to BSA solutions, indicating effective fouling simulation.
  • The system demonstrated leak-free operation due to the incorporated rubber-like polymer layer.

Conclusions:

  • The developed 3-D printed microfluidic system offers an automated and efficient platform for studying membrane fouling.
  • Its modular design and small sample requirement make it ideal for testing costly or limited materials like proteins and polysaccharides.
  • The system provides a scalable solution for high-throughput membrane performance evaluation and fouling research.