Abstract
Upon formation of cytosine-Ag(+)-cytosine base pairs as a mediator for the photoinduced electron transfer, the fluorescence of FAM-labeled DNA was quenched and the fluorescence emission wavelength exhibited a red shift. Based on these phenomena a novel dual-output fluorescent DNA sensor for Ag(+) ions and cysteine detection was developed.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Base Pairing
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Base Sequence
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Cysteine / chemistry*
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Cytosine / analysis*
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Electron Transport
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Fluoresceins / chemistry
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Ions / chemistry*
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Oligonucleotides / chemistry
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Photochemical Processes
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Silver / analysis*
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Spectrometry, Fluorescence*
Substances
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Fluoresceins
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Ions
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Oligonucleotides
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6-carboxyfluorescein
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Silver
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Cytosine
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Cysteine