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Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases
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Polysulfone Membranes: Here, There and Everywhere.

Pere Verdugo1, Iwona Gulaczyk2, Magdalena Olkiewicz1

  • 1Eurecat, Centre Tecnològic de Catalunya, Chemical Technologies Unit, Marcel·lí Domingo 2, 43007 Tarragona, Spain.

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Polysulfone (PSU) membranes offer excellent stability for separations. Recent advancements in fabrication and nanomaterial integration significantly enhance their performance in gas separation and water purification applications.

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Area of Science:

  • Materials Science
  • Chemical Engineering

Background:

  • Polysulfone (PSU) membranes are valued for thermal stability, mechanical strength, and chemical resistance.
  • PSU membranes are utilized in various separation processes.

Purpose of the Study:

  • To review recent advances in polysulfone (PSU) membrane development.
  • To highlight fabrication techniques, structural modifications, and emerging applications of PSU membranes.

Main Methods:

  • Phase inversion is the primary method for PSU membrane synthesis.
  • Functional enhancements are achieved through blending, chemical grafting, and incorporating nanomaterials like MOFs, carbon nanotubes, and zwitterionic polymers.

Main Results:

  • PSU-based mixed matrix membranes show improved CO2/CH4 selectivity with MOFs.
  • PSU membranes effectively remove algal toxins and heavy metals, with enhanced hydrophilicity and antifouling properties via surface modifications.

Conclusions:

  • PSU membranes are adaptable for advanced gas separation and water purification.
  • Further research is needed to optimize cross-linking and understand structure-property relationships for sustainable systems.