Film polysaccharide matrices for immobilization of hydrophilic fluorescence probes

Sensors International

A.B. Shipovskaya¹  I.А. Ivanova²  N.O. Gegel³  S.М. Rogacheva⁴ 

[1] Corresponding author. Professor of the Chair “Nature &Technosphere Safety”, Yuri Gagarin State Technical University of Saratov, 77 Politechnicheskaya St., Saratov, 410054, Russia.;Saratov State University, Astrakhanskaya St., 83, Saratov, 410012, Russia;Yuri Gagarin Saratov State Technical University, 77 Politechnicheskaya St., Saratov, 410054, Russia;

关键词: Polysaccharide matrices;    Cellulose diacetate;    Chitosan;    Solid-surface fluorescence;    Fluorescence probes;    Eosin;   

DOI  :  

来源: DOAJ

【 摘 要 】

The selection of a suitable matrix for immobilizing a reagent is one of the key issues in the development of a luminescent chemosensor. Various polysaccharide matrices from cellulose, cellulose nitrate, cellulose diacetate, chitosan and its acrylic copolymers have been investigated as a platform for immobilizing fluorescent probes (eosin Y and tripaflavin) for using in optical chemosensors. The parameters of the dyes sorption from aqueous solutions on the matrices were determined. Matrices with high signals of solid-surface fluorescence of the probes were revealed. A film matrix made of cellulose diacetate was shown to be the most promising sorbent for tripaflavine. A composite matrix based on chitosan and cellulose and a matrix made of chitosan modified with formic acid were the best for eosin immobilization. The developed sensitive elements (matrix ​+ ​dye) can be used to design optical chemosensors.

【 授权许可】

Unknown