Related Experiment Video
Updated: Feb 7, 2026

Production of Extracellular Matrix Fibers via Sacrificial Hollow Fiber Membrane Cell Culture
Published on: February 2, 2019
Hollow Fiber Membranes of Blends of Polyethersulfone and Sulfonated Polymers
Nazia Noor1, Joachim Koll2, Nico Scharnagl3
1Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany. noor_nazia@ymail.com.
Abstract:
Hollow fiber membranes (HFM) are fabricated from blend solutions of a polyethersulfone (PESU) with a sulfonated PESU (sPESU) or a sulfonated polyphenylenesulfone (sPPSU). The influence of different additives in the dope solution and different bore fluids on the HFM are studied. The addition of poly(sodium 4-styrene sulfonate) (PSSNa)/ethylene glycol (EG) to the dope solution results in an increased water flux of the HFM compared to its counterparts without this additive system. The morphology of the hollow fibers is examined by scanning electron microscopy (SEM). The inner surface of the hollow fibers is studied by X-ray photoelectron spectroscopy (XPS), and it is found that water permeation through the hollow fiber membranes is facilitated due to the change in morphology upon the addition of the PSSNa/EG additive system, but not by the presence of hydrophilic sulfonic acid groups on the membrane surface.
Related Concept Videos
Polymers
Polymers
Thin-Walled Hollow Shafts
Electrophilic Aromatic Substitution: Sulfonation of Benzene
Classification of Skeletal Muscle Fibers
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
Polymer Classification: Architecture

