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Synthesis of Wavelength-shifting DNA Hybridization Probes by Using Photostable Cyanine Dyes
Published on: July 6, 2016
Optical chemosensor for the detection of cyanide in water based on ethyl(hydroxyethyl)cellulose functionalized with
Leandro G Nandi1, Celso R Nicoleti, Ismael C Bellettini
1Departamento de Química, Universidade Federal de Santa Catarina , UFSC, CP 476, Florianópolis, Santa Catarina 88040-900, Brazil.
Abstract:
Ethyl(hydroxyethyl)cellulose was functionalized with Brooker's merocyanine. The modified polymer was easily transformed in a film, which could be used as a highly selective chromogenic and fluorogenic chemosensor for the detection of cyanide in water, with detection limits of 1.9 × 10(-5) and 1.0 × 10(-7) mol L(-1). The film was successfully applied to the detection of cyanide in cassava (Manihot esculenta Crantz) roots, which are a well-known source of endogenous biological cyanide.
