4.5 Article

A Naphthalenediimide-Based Fluorescent Sensor for Detecting the pH within the Rough Endoplasmic Reticulum of Living Cells

Journal

CHEMPLUSCHEM
Volume 80, Issue 3, Pages 485-489

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cplu.201402307

Keywords

cytotoxicity; endoplasmic reticulum; fluorescent probes; naphthalenediimide; sensors

Funding

  1. DAE-BRNS, Mumbai, India [37(2)/14/08/2014-BRNS]
  2. CSIR, New Delhi, Govt. of India for senior research fellowship
  3. Science and Engineering Research Board (SERB), India [SR/FT/LS-11/2011]
  4. Australian Research Council under a Future Fellowship scheme [FT110100152]

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An amino-core-substituted naphthalenediimide (NDI) derivative has been synthesized in good yield in two steps. The NDI bearing a diamine moiety undergoes a reversible protonation-deprotonation process, which results in intensity changes in the absorption and emission spectra. This derivative exhibits good photostability, good selectivity, high sensitivity, and is employed to exhibit the pH within the rough endoplasmic reticulum of living cells.

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