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NMR study of the temperature and viscosity effects on paramagnetic chemical shifts and relaxation rate enhancements in the thermoreversible gel system of poloxamer 407 with [Dy(DTPA)]2− Научная публикация

Журнал Polyhedron
ISSN: 1873-3719 , E-ISSN: 0277-5387
Вых. Данные Год: 2026, Том: 299, Номер статьи : 118352, Страниц : 8 DOI: 10.1016/j.poly.2026.118352
Ключевые слова Poloxamer 407, Dysprosium(III,) Diethylenetriamine pentaacetate, Paramagnetic NMR, Viscosity
Авторы Zapolotsky Eugeny N. 1 , Babailov Sergey P. 1
Организации
1 Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Lavrentiev Ave., Novosibirsk 630090, Russia

Информация о финансировании (1)

1

Реферат: In this study, NMR spectroscopy was used to investigate the temperature dependences of paramagnetic chemical shifts in a 22% solution of poloxamer 407 with and without the addition of the [Dy(DTPA)]2- complex. The half-width of the polymer signals in the system with the paramagnetic additive depends significantly on the solution viscosity and temperature due to the Curie-spin contribution to the paramagnetic spin-spin relaxation rate enhancement. The [Dy(DTPA)]2-complex can be considered as a promising compound for the design of temperature-sensitive NMR probes aimed at determining local temperature and viscosity in aqueous media and dispersed systems.
Библиографическая ссылка: Zapolotsky E.N. , Babailov S.P.
NMR study of the temperature and viscosity effects on paramagnetic chemical shifts and relaxation rate enhancements in the thermoreversible gel system of poloxamer 407 with [Dy(DTPA)]2−
Polyhedron. 2026. V.299. 118352 :1-8. DOI: 10.1016/j.poly.2026.118352 WOS Scopus OpenAlex
Даты:
Поступила в редакцию: 1 апр. 2026 г.
Принята к публикации: 1 окт. 2026 г.
Опубликована online: 1 окт. 2026 г.
Опубликована в печати: 1 нояб. 2026 г.
Идентификаторы БД:
≡ Web of science: WOS:001869305100001
≡ Scopus: 2-s2.0-105049065148
≡ OpenAlex: W7204260114
Альметрики: