Preparation of Magnetic Molecularly Imprinted Polymer for Methylene Blue Capture Full article
| Journal |
Magnetochemistry
ISSN: 2312-7481 |
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| Output data | Year: 2023, Volume: 9, Article number : 196, Pages count : DOI: 10.3390/magnetochemistry9080196 | ||
| Tags | methylene blue; methylene blue capture; molecularly imprinted polymer; magnetic molecularly imprinted polymer; magnetic molecularly imprinted solid-phase extraction; magnetic solid-phase microextraction; specific recognition; nylon-6; reusability | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | МИНИСТЕРСТВО НАУКИ И ВЫСШЕГО ОБРАЗОВАНИЯ РОССИЙСКОЙ ФЕДЕРАЦИИ | ПФНИ РФ (2021-2030) 0245-2021-0007 |
Abstract:
Hybrid magnetic molecularly imprinted polymers (MMIPs) have the advantages of the
technology of molecularly imprinted material and magnetic nanoparticles. The magnetic properties
of MMIPs allow easy magnetic separation of various pollutants and analytes. A convenient and
simple approach has been developed for the preparation of MMIPs based on polyamide (nylon-6)
and magnetic nanoparticles. The polymer matrix was formed during the transition of nylon-6 from
a dissolved state to a solid state in the presence of template molecules and Fe3O4 nanoparticles
in the initial solution. Methylene blue (MB) was used as a model imprinted template molecule.
The MMIPs exhibited a maximum adsorption amount of MB reached 110 µmol/g. The selectivity
coefficients toward MB structural analogs were estimated to be 6.1 ± 0.6 and 2.1 ± 0.3 for 15 µM
hydroxyethylphenazine and toluidine blue, which shows high MMIP selectivity. To prove the MMIPs’
specificity in MB recognition, magnetic nonimprinted polymers (MNIPs) were synthesized without
the presence of a template molecule. MMIPs exhibited much higher specificity in comparison to
MNIPs. To show the remarkable reusability of the MMIP sorbent, more than four MB absorption and
release cycles were carried out, demonstrating almost the same extraction capacity step by step. We
believe that the proposed molecular imprinting technology, shown in the MB magnetic separation
example, will bring new advances in the area of MMIPs for various applications.
Cite:
Sedelnikova A.
, Poletaeva Y.
, Golyshev V.M.
, Chubarov A.S.
, Dmitrienko E.V.
Preparation of Magnetic Molecularly Imprinted Polymer for Methylene Blue Capture
Magnetochemistry. 2023. V.9. 196 . DOI: 10.3390/magnetochemistry9080196 WOS Scopus OpenAlex
Preparation of Magnetic Molecularly Imprinted Polymer for Methylene Blue Capture
Magnetochemistry. 2023. V.9. 196 . DOI: 10.3390/magnetochemistry9080196 WOS Scopus OpenAlex
Dates:
| Published print: | Jul 31, 2023 |
Identifiers:
| Web of science: | WOS:001055287200001 |
| Scopus: | 2-s2.0-85169125226 |
| OpenAlex: | W4385415170 |