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Dostęp zamkniętyAntioxidant ability and increased mechanical stability of hydrogel nanocomposites based on N-isopropylacrylamide crosslinked with Laponite and modified with polydopamine
| dc.abstract.en | A new nanocomposite hydrogel with antioxidant activity was obtained. In the synthesis, first, the free-radical polymerization of NIPA (N-isopropylacrylamide) with Laponite as the crosslinker was performed, and then the hydrogel was further modified with polydopamine to yield a mechanically improved antioxidant hydrogel. ABTS (2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt) assays were used to examine the antioxidant activity of the obtained material, the material reached ca. 98 % of inhibition after 30 min. The new NIPA-based hydrogel was temperature responsive; as a result, the nanocomposite double network hydrogel exhibited temperature-modulated antioxidant activity. The mechanical properties of the obtained composite were examined using a tensile machine; the tensile strength of PNIPA_6%Lap/ PDA hydrogel reached 20 kPa, and elongation at break equaled 250 %. |
| dc.affiliation | Uniwersytet Warszawski |
| dc.contributor.author | Khodami, Samaneh |
| dc.contributor.author | Stojek, Zbigniew |
| dc.contributor.author | Karbarz, Marcin |
| dc.contributor.author | Kaniewska, Klaudia |
| dc.date.accessioned | 2024-01-24T16:40:28Z |
| dc.date.available | 2024-01-24T16:40:28Z |
| dc.date.issued | 2023 |
| dc.description.finance | Nie dotyczy |
| dc.description.volume | 187 |
| dc.identifier.doi | 10.1016/J.EURPOLYMJ.2023.111876 |
| dc.identifier.issn | 0014-3057 |
| dc.identifier.uri | https://repozytorium.uw.edu.pl//handle/item/100797 |
| dc.identifier.weblink | https://api.elsevier.com/content/article/PII:S0014305723000599?httpAccept=text/xml |
| dc.language | eng |
| dc.pbn.affiliation | chemical sciences |
| dc.relation.ispartof | European Polymer Journal |
| dc.relation.pages | 111876 |
| dc.rights | ClosedAccess |
| dc.sciencecloud | nosend |
| dc.subject.en | Antioxidant properties |
| dc.subject.en | Laponite |
| dc.subject.en | Nanocomposite hydrogel |
| dc.subject.en | NIPA |
| dc.subject.en | Polydopamine |
| dc.title | Antioxidant ability and increased mechanical stability of hydrogel nanocomposites based on N-isopropylacrylamide crosslinked with Laponite and modified with polydopamine |
| dc.type | JournalArticle |
| dspace.entity.type | Publication |