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The synthesis, protonation behaviour and Zn2+ coordination chemistry of a new photoactive polyamine exhibiting “off‐on‐off” fluorescence is presented. Addition of Zn2+ reduces the width of the fluorescence window, which is centred around physiological pH, and sharply enhances the emission intensity. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
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Aucejo et al. (2005) studied this question.
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