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A novel fluorescent dendrimer PYTPAG2, with pyrene as the interior core and triphenylamine (TPA) as the exterior periphery, is studied as a fluorescence-quenching sensor for iron (ш) ions (Fe3+), both in solution and as a film. This dendrimer-based sensor possesses preferential detection of Fe3+ by a very strong fluorescence quenching not found for other metal ions. The fluorescent detection limits...
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