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. 2022 Dec 5;27(23):8574. doi: 10.3390/molecules27238574

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

(A) The preparation strategy of CS/PEI/PEI and CS/PEI/PDMAEMA TN sponges (Adapted with permission from ref. [39]. Copyright 2021 Elsevier.) (B) The influence of interfering anions on the phosphate sorption by CS/PEI/PEI and CS/PEI/PDMAEMA TN sponges (Reprinted with permission from ref. [39]. Copyright 2021 Elsevier.) (C) Phosphate sorption/desorption cycles CS/PEI/PEI and CS/PEI/PDMAEMA TN sponges (Reprinted with permission from ref. [39]. Copyright 2021 Elsevier.).