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Cellulose-based films reconstituted from ionic liquids: current status and prospectsтезисы доклада
- Авторы: Shekhovtsova T., Muginova S., Myasnikova D.
- Сборник: Abstracts of International conference Euroanalysis 2015, Bordeaux, France
- Тезисы
- Год издания: 2015
- Место издания: Universite de Bordeaux III, France Bordeaux, France
- Аннотация: The present report unveils the current opportunities and prospects to apply new sustainable cellulose-based materials prepared by dissolution−regeneration of cellulose using some hydrophilic imidazolium ionic liquids (ILs) in chemical analysis, especially in optical sensing technologies. Owing to biocompatibility, good physicomechanical properties, and an optical transparency, these cellulose materials in a form of films serve attractive solid support matrices for immobilization of different analytical reagents. The immobilized compounds in the films are recognizing elements of colorimetric, spectrophotometric, and fluorescent chemical sensors and biosensors. In the last few years, cellulose films modified with reagents have been mainly used as sensing materials for the determination of some heavy and transition metal ions. This report mostly summarizes the experience of our research team with the features of preparation of IL-reconstituted cellulose films with noncovalently immobilized reagents and their application in organic chemical analysis. These reagents are plant peroxidases, heme-containing proteins and their mimetics, and fluorophores, i.e. pyronin B and complexes of Eu(III) with dipicolinic acid and tetracycline. The results of the study of performance and optical properties of the cellulose films, as well as their surface structure, are discussed. Particular attention has been paid to the dependence of the physicomechanical and catalytic properties of the cellulose films on nature of the used IL and its anti-solvent. The examples of application of the developed cellulose films for sorption of natural and synthetic dyes and determination of catecholamines and natural antimalarial endoperoxides are demonstrated. The work was supported by the Russian Foundation for Basic Research (grant no. 15-03-05064-a).
- Добавил в систему: Шеховцова Татьяна Николаевна