Development of Nano-polymer Based Dialysis Membrane / Somia Mazhar

By: Mazhar, SomiaContributor(s): Supervisor : Dr. Adeeb ShehzadMaterial type: TextTextIslamabad : SMME- NUST; 2024Description: 79p. Soft Copy 30cmSubject(s): MS Biomedical Sciences (BMS)DDC classification: 610 Online resources: Click here to access online
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The kidneys are essential for preserving the body's internal balance. However, kidney
illnesses impact millions of people globally and pose a serious threat to public health.
Hemodialysis membranes based on polyethersulfone (PES) can offer patients with renal
impairment a life-sustaining therapeutic method. Nevertheless, the intrinsic hydrophobic
nature of PES contributes to an inefficiency of uremic toxin clearance and a
compromised hemocompatibility. This work evaluates the effects of hydrophilic
additives, SiO2 nanoparticles, on the functionality of polyethersulfone (PES) membranes.
NMP was used as the solvent in the non-solvent phase inversion procedure to create the
membranes. Tensile testing, porosity, contact angle analysis, FTIR, and scanning electron
microscopy were used to characterize the manufactured membranes. The SEM images
demonstrated the successful fabrication of the membranes. Each membrane possessed a
thin skin layer and an asymmetric porous framework. As a result of the synergistic effect,
the membrane with the highest nanoparticles concentration performed better. The
membrane having the highest nanoparticles concentration had excellent hydrophilicity,
increased porosity, and a high-water retention capacity. Moreover, they showed a urea
clearance of 76.5%, a pure water flux of 94 L/m²/h, and an outstanding BSA rejection of
96.56%. RSM modelling was employed to determine the urea clearance that verified the
ideal conditions for urea removal were concentrations of 1200 mg/L and 0.6 MPa.

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