کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
740082 1462097 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sensing of Hg+2 and Ag+ through a pH dependent FRET system: Fabrication of molecular logic gates
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Sensing of Hg+2 and Ag+ through a pH dependent FRET system: Fabrication of molecular logic gates
چکیده انگلیسی

The fluorescence resonance energy transfer (FRET) from the donor 6,7-dimethoxy-2,4[1H,3H]-quinazolinedione (Q) to the acceptor lumichrome (L) exhibits strong pH dependency and in aqueous solution at pH 9 it is used to sense Hg+2 or Ag+ ions, selectively. QL hybrid forms organic nanoparticles through self-assembly at pH 9 as evident from TEM micrographs. The QL system can sense Hg+2 or Ag+ ion in aqueous medium at pH9 at a nanomolar concentration range using FRET pathway via complexation and nanoparticle formation, respectively. In the QL system, the ions can be easily distinguished with the help of UV–vis spectroscopic study or through the naked eye. We have successfully utilized the above metal ions for the fabrication of NOR and INHIBIT molecular logic gates using FRET of QL system as a signal transducer and Hg+2, Ag+ ion and pH as chemical activators.

FRET from 6,7-dimethoxy-2,4[1H,3H]-quinazolinedione(Q) to lumichrome(L) is used to analyse Hg+2 and Ag+ and to produce NOR and INHIBIT Logic gates.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 193, 31 March 2014, Pages 349–355
نویسندگان
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