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@ARTICLE{Bhler:587024,
author = {Böhler, Hendrik and Orth-Alampour, Setareh and Baaten,
Constance and Riedner, Maria and Jankowski, Joachim and
Beck, Tobias},
title = {{A}ssembly of chemically modified protein nanocages into
3{D} materials for the adsorption of uremic toxins},
journal = {Journal of materials chemistry / B},
volume = {11},
number = {1},
issn = {2050-750X},
address = {London [u.a.]},
publisher = {RSC},
reportid = {PUBDB-2023-04092},
pages = {55 - 60},
year = {2022},
abstract = {Hemodialysis fails to remove protein-bound uremic toxins
that are attributed with high cardiovascular risk.
Application of adsorption materials is a viable strategy,
but suitable biocompatible adsorbents are still not
available. Here, we demonstrate that adsorbents based on the
bottom-up assembly of the intrinsically biocompatible
protein cage ferritin are applicable for toxin adsorption.
Due to the size-exclusion effect of its pores, only small
molecules such as uremic toxins can enter the protein cage.
Protein redesign techniques that target selectively the
inner surface were used to introduce anchor sites for
chemical modification. Porous crystalline adsorbents were
fabricated by bottom-up assembly of the protein cage.
Linkage of up to 96 phenylic or aliphatic molecules per
container was verified by ESI-MS. Materials based on
unmodified ferritin cages can already adsorb the uremic
toxins. The adsorption capacity could be increased by about
$50\%$ through functionalization with hydrophobic molecules
reaching 458 μg g$^{−1}$ for indoxyl sulfate. The
biohybrid materials show no contamination with endotoxins
and do not activate blood platelets. These findings
demonstrate the great potential of protein-based adsorbents
for the clearance of uremic toxins: modifications enhance
toxin adsorption without diminishing the biocompatibility of
the final protein-based material.},
cin = {DOOR ; HAS-User},
ddc = {610},
cid = {I:(DE-H253)HAS-User-20120731},
pnm = {6G3 - PETRA III (DESY) (POF4-6G3) / FS-Proposal: I-20211171
(I-20211171) / FS-Proposal: I-20210277 (I-20210277) / DFG
project 401323995 - Hochstrukturierte optische Materialien
aus Proteincontainern und plasmonischen Nanopartikeln für
die Manipulation von Licht auf der Nanoskala (401323995) /
DFG project 390715994 - EXC 2056: CUI: Advanced Imaging of
Matter (390715994) / DFG project 413227073 -
UPLC-ESI-QTRAP-Massenspektrometer (413227073) / GRK 2536 -
GRK 2536: Hybridstrukturen auf der Nanometerskala: Chemische
Konzepte zur Herstellung heterogener Nanostrukturen mit
anisotropen Materialeigenschaften (NANOHYBRID) (408076438)},
pid = {G:(DE-HGF)POF4-6G3 / G:(DE-H253)I-20211171 /
G:(DE-H253)I-20210277 / G:(GEPRIS)401323995 /
G:(GEPRIS)390715994 / G:(GEPRIS)413227073 /
G:(GEPRIS)408076438},
experiment = {EXP:(DE-H253)P-P11-20150101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:36504125},
UT = {WOS:000897611200001},
doi = {10.1039/D2TB02386E},
url = {https://bib-pubdb1.desy.de/record/587024},
}