Journal
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
Volume 64, Issue 16, Pages 838-847Publisher
TAYLOR & FRANCIS AS
DOI: 10.1080/00914037.2015.1030654
Keywords
1,8-naphthalimide dye; eosin Y; hydrogel; photopolymerization; smart textile; stimuli-responsive fluorescent sensor
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Funding
- Ministry of Education, Youth and Science, Bulgaria [BG052PO001/3.3-05-0001]
- Scientific Research Sector (UCTM)
- Spanish Ministry of Economy and Competitivity [MAT2012-31709]
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A fluorescent textile sensor and its capacities to detect pH changes in aqueous solutions have been reported. A new hydrogel-cotton fabric was obtained via surface initiated photopolymerization of 2-aminoethylmethacrylate hydrochloride, with N, N'-methylenebis- acrylamide as a crosslinker, and fluorophore and modified eosin Y and N-methyldiethanolamine as photoinitiators. The synthesis of the modified eosin Y and a new 1,8-naphtalimide used as signal units in the hydrogel composite have been described. It has been found that the concentration of the photoinitiator affects the functional properties of the composite. pH variations influence the gel structure and this is transduced into fluorescence and color changes of the material.
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