کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
744303 894385 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of glucose-sensitive TiO2 ultrathin films by molecular imprinting and selective detection of monosaccharides
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Fabrication of glucose-sensitive TiO2 ultrathin films by molecular imprinting and selective detection of monosaccharides
چکیده انگلیسی

In this study, we extended the molecular imprinting capability of TiO2 gel to the monosaccharide family. Composite nanofilms were prepared from d-glucose and titanium n-butoxide, Ti(O–nBu)4, on a QCM electrode by the surface sol–gel process. After the d-glucose template was removed, the binding behavior of the template and other monosaccharides (d-mannose, d-galactose and d-fructose) was examined by QCM measurement The d-glucose imprinted TiO2 gel film provided sensitively mass increases for monosaccharides. The largest binding was achieved with d-glucose, showing a maximal binding ratio of 2.3 (λ = Mimp/Mnon-imp, mol/mol) between the imprinted and non-imprinted films. The other six-membered monosaccharide guests gave 44–68% binding efficiencies of that of d-glucose. It is concluded that the imprinted TiO2 gel film could efficiently discriminate the structure of monosaccharide isomers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 130, Issue 1, 14 March 2008, Pages 379–385
نویسندگان
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