 Wysłany: Czw 20:49, 07 Kwi 2011 Temat postu: Zinc ions on the fluorescence enhancement of the r |
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| Zinc ions on the fluorescence enhancement of the role of glutathione
Changes. Reaction of GSH with OPA as a ring of high- fluorescent material conjugate 5, by adding Zn , the relatively fixed elements of a planar conformation to enhance the rigidity of the molecule ,belstaff italia, thereby reducing non- radiative transition probabilities , the relative increase GSH-OPA fluorescence quantum yield , thereby enhancing the system 's F value. In addition, the effects of different concentrations of zn on the enhancement of fluorescence was found , n (Zn2) / n (GSH) was 2.0 , the solution of F close to the maximum , continue to increase zn2 and GSH molar ratio , F value Smaller, this may be due zn2 and GSH-OPA complex there is a certain ratio (2:1 ) relationship. The fluorescence is a mechanism of Zn2 enhance GsH preliminary analysis , more complete , in-depth analysis needs further study. No. 5 Qi Jianying et al: fluorescence enhancement of zinc ions on the role of glutathione 63 [1 ] [ 2] [ 3 ] [4 ] [5 ] [ ,],[ |
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