Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9769856 | Journal of Molecular Structure | 2005 | 5 Pages |
Abstract
Optical measurements on [Ru(bipy)2(dpknph)]Cl2, where bipy is 2,2â²-bipyridine and dpknph is di-2-pyridyl ketone p-nitrophenyl hydrazone, in polar dimethyl sulfoxide (DMSO) in the presence and absence of NaBH4/NaBF4 confirmed the reversible interconversion between the high- and low-energy electronic states of [Ru(bipy)2(dpknph)]Cl2 at 576 and 412Â nm, respectively. The addition of an external stimulus improves the optosensing behavior of [Ru(bipy)2(dpknph)]Cl2 because of the disturbance of the equilibrium distribution of the electronic states. Optical measurements on [Ru(bipy)2(dpknph)]Cl2 in the presence and absence of NaBH4 reveal high sensitivity of the electronic states of [Ru(bipy)2(dpknph)]Cl2 to slight variations in the concentration of monosaccharide, glucose and fructose in this study. Monosaccharide in concentration as low as 1Ã10â9Â M can be detected and determined using [Ru(bipy)2(dpknph)]Cl2 in DMSO in the presence and absence of NaBH4. In the presence of NaBH4, the system shows higher sensitivity toward glucose.
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Authors
Mohammed Bakir, Colin Gyles,