Biobased chitosan-derived self-nitrogen-doped porous carbon nanofibers containing nitrogen-doped zeolites for efficient removal of uremic toxins during hemodialysis

Copyright © 2023 Elsevier B.V. All rights reserved..

Highly efficient adsorbents are needed to remove uremic toxins and reduce the economic and societal burden of the current dialysis treatments in resource-limited environments. In this study, nanostructured porous carbon nanofibers with nitrogen-doped zeolites (NZ-PCNF) were prepared, by electrospinning zeolites with chitosan-poly(ethylene oxide) blends, followed by a one-step carbonization process, without further activation steps or aggressive chemical additives for N-doping. The results showed that N-zeolites were successfully integrated into an ultrafine carbon nanofiber network, with a uniform nanofiber diameter of approximately 25 nm, hierarchical porous structure (micro- and mesopores), and high specific surface area (639.29 m2/g), facilitating uremic toxin diffusion and adsorption. The self-N-doped structure in the NZ-PCNF removed more creatinine (∼1.8 times) than the porous carbon nanofibers when using the same weight of precursor materials. Cytotoxicity and hemolysis tests were performed to verify the safety of NZ-PCNF. This study provides a novel strategy for transforming chitosan-based materials into state-of-the-art porous carbon nanofiber/zeolite self-N-doped composites, affording an efficient bioderived adsorbent for the removal of uremic toxins in patients with chronic kidney disease.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:253

Enthalten in:

International journal of biological macromolecules - 253(2023), Pt 3 vom: 31. Dez., Seite 126880

Sprache:

Englisch

Beteiligte Personen:

Yang, I-Hsuan [VerfasserIn]
Szabó, László [VerfasserIn]
Sasaki, Makoto [VerfasserIn]
Uto, Koichiro [VerfasserIn]
Henzie, Joel [VerfasserIn]
Lin, Feng-Huei [VerfasserIn]
Samitsu, Sadaki [VerfasserIn]
Ebara, Mitsuhiro [VerfasserIn]

Links:

Volltext

Themen:

1318-02-1
7440-44-0
9012-76-4
Carbon
Chitosan
Journal Article
N-doped porous carbon nanofibers
N-doped zeolites
N762921K75
Nitrogen
Uremic Toxins
Zeolites

Anmerkungen:

Date Completed 24.11.2023

Date Revised 24.11.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ijbiomac.2023.126880

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM362064598