Polyamine-based spin probes for the study of siliceous structures

Polyamine-based spin probes for the study of siliceous structures Full article

Journal

Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093

Output data

Year: 2017, Volume: 242, Pages: 74-81 Pages count : 8 DOI: 10.1016/j.micromeso.2017.01.010

Tags

Spin probes; ESR; Silica; Polyamines

Authors

Annenkov Vadim V. ¹ , Danilovtseva Elena N. ¹ , Khutsishvili Spartak S. ² , Pal'shin Viktor A. ¹ , Polienko Yuliya F. ^3,5 , Saraev Vitaliy V. ⁴ , Vakul'skaya Tamara I. ² , Zelinskiy Stanislav N. ¹ , Grigor'ev Igor A. ³

Affiliations

1	Limnological Institute Siberian Branch of the Russian Academy of Sciences, 3, Ulan-Bator Str., Irkutsk, 664033, Russia
2	A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1, Favorsky Str., Irkutsk, 664033, Russia
3	N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry Siberian Branch of the Russian Academy of Sciences, 9, Lavrentiev Avenue, Novosibirsk, 630090, Russia
4	Irkutsk State University, Chemical Department, 3, Karl Marx Str., Irkutsk, 664003, Russia
5	Novosibirsk State University, 2, Pirogova Street, Novosibirsk, 630090, Russia

Three new spin probes containing polyamine chains (2 or 3 nitrogen atoms) and nitroxide were synthesized. These compounds are stable in aqueous media at pH 5-10, and shape and intensity of their ESR spectra do not depend on pH in this range. The involvement of the spin probes in association in solution results in decrease of the spin mobility which appears as spectral anisotropy. The polyamine spin probes bind to siliceous nanoparticles in solution resulting in a reversible decrease in spectral intensity. These observations open a new way for monitoring silicic acid condensation. Sorption of the spin probes on solid silica gives rise to anisotropic spectra. The polyamine spin probes penetrate into growing cells of diatom algae in a similar manner to polyamine-containing fluorescent dyes. (C) 2017 Elsevier Inc. All rights reserved.

Annenkov V.V. , Danilovtseva E.N. , Khutsishvili S.S. , Pal'shin V.A. , Polienko Y.F. , Saraev V.V. , Vakul'skaya T.I. , Zelinskiy S.N. , Grigor'ev I.A.
Polyamine-based spin probes for the study of siliceous structures
Microporous and Mesoporous Materials. 2017. V.242. P.74-81. DOI: 10.1016/j.micromeso.2017.01.010 WOS Scopus РИНЦ

Published print:

Apr 1, 2017

Web of science	WOS:000397370300009
Scopus	2-s2.0-85009792186
Elibrary	29476142
OpenAlex	W2574166799