Please use this identifier to cite or link to this item: doi:10.22028/D291-33460
Title: Reversible Diels–Alder Reactions with a Fluorescent Dye on the Surface of Magnetite Nanoparticles
Author(s): He, Siyang
Kickelbick, Guido
Language: English
Title: Molecules
Volume: 26
Issue: 4
Publisher/Platform: MDPI
Year of Publication: 2021
Free key words: iron oxide
Diels–Alder reactions
fluorescent dye
DDC notations: 500 Science
Publikation type: Journal Article
Abstract: Diels–Alder reactions on the surface of nanoparticles allow a thermoreversible functionalization of the nanosized building blocks. We report the synthesis of well-defined magnetite nanoparticles by thermal decomposition reaction and their functionalization with maleimide groups. Attachment of these dienophiles was realized by the synthesis of organophosphonate coupling agents and a partial ligand exchange of the original carboxylic acid groups. The functionalized iron oxide particles allow a covalent surface attachment of a furfuryl-functionalized rhodamine B dye by a Diels–Alder reaction at 60 ◦C. The resulting particles showed the typical fluorescence of rhodamine B. The dye can be cleaved off the particle surface by a retro-Diels–Alder reaction. The study showed that organic functions can be thermoreversibly attached onto inorganic nanoparticles.
DOI of the first publication: 10.3390/molecules26040877
Link to this record: urn:nbn:de:bsz:291--ds-334600
ISSN: 1420-3049
Date of registration: 1-Mar-2021
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Chemie
Professorship: NT - Prof. Dr. Guido Kickelbick
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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