کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1231440 | 1495274 | 2012 | 6 صفحه PDF | دانلود رایگان |
We have developed a new ruthenium complex, Ru(bpy)2[4-(2,2′-bipyridin-4-yloxy)phenol]Cl2 (RuL), as a fluorescent sensor to detect peroxynitrite (ONOO−). The results showed that the addition of ONOO− to the aqueous solution of RuL would result in distinct fluorescence quenching at 600 nm. RuL exhibits a good selectivity for ONOO− over other reactive oxygen species (ROS) and reactive nitrite species (RNS), and the reaction time is less than 1.5 s. The sensing mechanism is proposed as the oxidative O-dealkylation reaction.
We have developed a new ruthenium complex, Ru(bpy)2[4-(2,2′-bipyridin-4-yloxy)phenol]Cl2 (RuL), as a fluorescent sensor to detect peroxynitrite (ONOO−). The results showed that the addition of ONOO− to the aqueous solution of RuL would result in distinct fluorescence quenching at 600 nm. RuL exhibits a good selectivity for ONOO− over other reactive oxygen species (ROS) and nitrite species (RNS), and the reaction time is less than 1.5 s. The sensing mechanism is proposed as the oxidative O-dealkylation reaction.Figure optionsDownload as PowerPoint slideHighlights
► We have presented a new fluorescent sensor (RuL) for the detection of peroxynitrite.
► The sensing mechanism is proposed as the oxidative O-dealkylation reaction.
► RuL could recognize peroxynitrite specifically among other ROS/RNS.
► The reaction time of RuL and peroxynitrite is less than 1.5 s.
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 94, August 2012, Pages 340–345